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Ricardo Striquer Soares
Verified Expert in Engineering
Full-stack Engineer and Developer
Curitiba, Brazil
Toptal member since July 23, 2026
Bio
Ricardo has spent over 25 years building high-availability cloud-native systems across fintech, eCommerce, and government sectors. His toolkit centers on AWS, Docker, and Linux. While at WB4B, Ricardo architected mission-critical platforms and led teams to deliver scalable solutions for clients in Brazil and beyond.
Portfolio
WB4B
JavaScript, PHP, PHP 8, MySQL, ITIL, Scrum, Agile QA, Amazon S3 (AWS S3)...
Rainbet Crypto Casino
NestJS, TypeScript, Node.js, PHP, MySQL, AWS IoT, MongoDB, PostgreSQL, Apache...
TheoremOne
NestJS, MySQL, Amazon S3 (AWS S3), AWS Lambda, Terraform, TypeScript, RabbitMQ...
Experience
- PHP - 20 years
- MySQL - 15 years
- AWS IoT - 14 years
- Laravel - 8 years
- TypeScript - 7 years
- React - 5 years
- PostgreSQL - 4 years
- NestJS - 4 years
Work Experience
Founder & Software Architect
2023 - PRESENT
WB4B
- Founded and scaled a software company from a three-person startup into one of Southern Brazil's leading eCommerce platform providers, serving SMBs, enterprises, and government organizations.
- Designed and delivered mission-critical platforms including eCommerce, healthcare, ERP, CRM, and business intelligence systems while acting as software architect, technical lead, and full-stack engineer.
- Established engineering standards covering software architecture, security, CI/CD, performance optimization, and team mentoring, enabling the successful delivery of dozens of long-term software projects.
- Designed scalable application architectures, emphasizing security, maintainability, performance optimization, and long-term operational reliability.
- Directed multidisciplinary engineering teams through architecture decisions, code reviews, project planning, technical mentoring, and software delivery.
- Researched and introduced emerging technologies, helping clients modernize legacy systems and adopt scalable software architectures.
- Balanced strategic technology decisions with hands-on software development, acting simultaneously as architect, technical leader, and senior engineer.
Technologies: JavaScript, PHP, PHP 8, MySQL, ITIL, Scrum, Agile QA, Amazon S3 (AWS S3), Apache, APIs, AWS IoT, Bootstrap, Swagger, React, Next.js, Memcached, APC, Redis, BullMQ, Mongoose, MongoDB, MySQL DBA, NestJS, TypeScript, Linux, Windows, Kanban, MercadoPago API, Laravel 5, Laravel 9, Laravel 10, OpenAPI, Jenkins, Amazon EC2, Elasticsearch, Sphinx, Bugsnag, PHPUnit, Docker, JSON Web Tokens (JWT), OAuth 2, Laravel Sanctum, Java 8, Java, FreeBSD, Amazon Linux, JUnit, Spring 5, Spring MVC, Spring Boot, Vue, Vue 2, jQuery, jQuery UI, Angular, SQL Server, Node.js, PostgreSQL, SQLite, Vagrant, Capistrano, Git, Subversion (SVN), CSV, Bitbucket, GitLab, Slack, Slackware, OWASP Zed Attack Proxy (ZAP), Python, Python 3, C#, C++, C, Cypress, Chakra UI, Tailwind CSS, Google Cloud, CI/CD Pipelines, .NET Core, NinjaTrader, NinjaScript, MQL, MQL4, MQL5, SuiteCRM, SugarCRM, XMPP, FFmpeg, NGINX, Selenium, Postman, Express.js, REST APIs, Microservices, Laravel, Delphi, Progress 4GL, Software QA, Databases, Mobile, Database Design, Software Architecture, Relational Databases, TypeORM, Security, Unit Testing, GitHub, Artificial Intelligence (AI), Microsoft Excel, Database Migration, Database Modeling, Data Modeling, Front-end Development, BigQuery, Google BigQuery, Automation, Automations, AI Automation, Test Automation, Email Automation, Task Automation, Web App Automation, DevOps, AWS DevOps, DevSecOps, Agile DevOps, DevOps Automation, Regulated Industries, AI Agent Orchestration, Architecture, System Architecture, Middleware, Enterprise Integration, Full-stack Development, Process Automation, Amazon Web Services (AWS), Back-end, Back-end APIs, Integrations, Web Development, User Experience (UX), User Interface (UI), Google Analytics, CSS, HTML, SEO Tools, Search Engine Optimization (SEO), Optimization, Social Media APIs, Websites, Cursor AI, ERP Systems, Google Cloud Platform (GCP), Large Language Models (LLMs), AI Integration, SaaS, Speech-to-Text (STT), Medical Software, Startups, AI Tools, Product Mindset, B2B, CSS3, Figma, Mobile-first Design, Responsive Design, Workflow Automation, API Integration, Data, Functional Programming, LLM Integration, Workflow Automation Design, Workflow Automation & System Integration, Front-end, Solution Architecture, Event-driven Architecture, Distributed Systems, Event-driven Systems, Vite, ERP Technologies and Implementations, DNS, DNS Servers, Marketing Technology (MarTech), Affiliate Marketing, VPS, Funnel Marketing, Integration, Image Processing, Observability, Software Development, Affiliate Tracking, eCommerce, Marketplaces, Payment APIs, Payment Gateways, Payment Processing, Real-time Payment Processing, Technical Leadership, Vibe Coding, Claude, Claude Code, Stripe, Stripe API, Multi-tenant Architecture, Multi-tenant SaaS, Analytics, Early-stage Startups, Auto-scaling Cloud Infrastructure, Caching, Cloud Infrastructure, gRPC, JSON, Consulting, Apollo, Apollo Server, GraphQL API, REST, RESTFul APIs, Open Source
Full-stack Engineer
2023 - 2026
Rainbet Crypto Casino
- Designed and maintained high-traffic back-end services using NestJS, TypeScript, Node.js, PHP, MySQL, and AWS-based infrastructure.
- Optimized database architectures to support massive concurrent user traffic while maintaining rigorous security standards for sensitive financial data.
- Improved application performance through database optimization, Redis caching, and back-end refactoring, reducing latency across critical business services.
- Strengthened platform security by implementing protections against denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks and introducing engineering practices focused on resilience and operational stability.
- Developed event-driven microservices using NestJS, TypeORM, and WebSockets to support real-time platform integrations and internal services.
- Advocated software quality through unit, integration, and end-to-end testing using Jest, Postman, K6, and OpenAPI-based workflows.
- Integrated external platforms, including BetBee, SoftSwiss, Alea Play, Discord APIs, and payment services within a distributed back-end architecture.
- Refactored critical back-end components to improve maintainability, scalability, and operational reliability in a high-traffic production environment.
Technologies: NestJS, TypeScript, Node.js, PHP, MySQL, AWS IoT, MongoDB, PostgreSQL, Apache, DigitalOcean, Amazon S3 (AWS S3), Google API, OAuth 2, Discord, Passport.js, Grafana k6, Jest, Postman, TypeORM, Drizzle, Swagger, Cloudflare, Docker, E2E Testing, Express.js, Jira, SQL, MySQL DBA, Mongoose, PHP 8, Security, SendGrid API, SendGrid, Unit Testing, RabbitMQ, Linux, Windows, Kanban, ITIL, GitHub Actions, Redis, REST APIs, JavaScript, Databases, APIs, Database Design, Software Architecture, Relational Databases, OpenAPI, CI/CD Pipelines, GitHub, Microsoft Excel, Database Migration, Database Modeling, Data Modeling, Front-end Development, Automation, Automations, AI Automation, Email Automation, Task Automation, Web App Automation, DevOps, AWS DevOps, DevSecOps, Agile DevOps, DevOps Automation, Regulated Industries, Architecture, System Architecture, Middleware, Enterprise Integration, Process Automation, Amazon Web Services (AWS), Back-end, Back-end APIs, Integrations, Web Development, User Experience (UX), User Interface (UI), Google Analytics, CSS, HTML, Optimization, Social Media APIs, Websites, Cursor AI, Large Language Models (LLMs), AI Integration, SaaS, Startups, AI Tools, Product Mindset, CSS3, Figma, Mobile-first Design, Responsive Design, Workflow Automation, API Integration, Data, Workflow Automation Design, Workflow Automation & System Integration, Front-end, Solution Architecture, Event-driven Architecture, Distributed Systems, Event-driven Systems, ERP Technologies and Implementations, VPS, Integration, Observability, Software Development, eCommerce, Affiliate Tracking, Affiliate Marketing, Payment APIs, Payment Gateways, Payment Processing, Real-time Payment Processing, Technical Leadership, Claude, Claude Code, Multi-tenant Architecture, Multi-tenant SaaS, Early-stage Startups, Auto-scaling Cloud Infrastructure, Caching, Cloud Infrastructure, JSON, Apollo, GraphQL API, REST, RESTFul APIs, Open Source
Full-stack Developer
2022 - 2023
TheoremOne
- Collaborated within cross-functional, distributed teams for a premier US-based innovation consultancy.
- Engineered complex enterprise solutions for Fortune 500-level clients.
- Designed and implemented AWS Lambda microservices using NestJS and DynamoDB to integrate internal systems with 3rd-party logistics providers through event-driven workflows.
- Built scalable data processing pipelines leveraging Amazon S3 events, SQS, and Lambda to efficiently process large JSON datasets in distributed environments.
- Implemented production observability by integrating Telegraf, InfluxDB, Grafana, and Amazon CloudWatch, enabling proactive monitoring, alerting, and incident prevention.
- Maintained and enhanced modern NestJS services alongside legacy Symfony applications, ensuring reliable integrations while supporting the gradual modernization of the platform.
Technologies: NestJS, MySQL, Amazon S3 (AWS S3), AWS Lambda, Terraform, TypeScript, RabbitMQ, Amazon DynamoDB, Telegraf, InfluxDB, Amazon CloudWatch, Grafana, Symfony, Swagger, Jest, OpenAPI, Jenkins, Lambda Functions, Amazon Simple Queue Service (SQS), PHPUnit, Docker, JSON Web Tokens (JWT), OAuth 2, Microservices, LocalStack, Git, Jira, Slack, Slack API, Postman, Node.js, AWS IoT, Linux, Scrum, Kanban, React, PHP, Express.js, REST APIs, JavaScript, Databases, APIs, Database Design, Software Architecture, Relational Databases, Security, Unit Testing, CI/CD Pipelines, GitHub, Database Modeling, Data Modeling, Automation, Automations, AI Automation, Test Automation, Email Automation, Task Automation, Web App Automation, DevOps, AWS DevOps, DevSecOps, Agile DevOps, DevOps Automation, Regulated Industries, Architecture, System Architecture, Middleware, Enterprise Integration, Process Automation, Amazon Web Services (AWS), Back-end, Back-end APIs, Integrations, Web Development, User Experience (UX), User Interface (UI), CSS, HTML, Optimization, Websites, SaaS, Startups, Product Mindset, CSS3, Mobile-first Design, Responsive Design, Workflow Automation, API Integration, Data, Workflow Automation Design, Workflow Automation & System Integration, Solution Architecture, Event-driven Architecture, Distributed Systems, Event-driven Systems, ERP Technologies and Implementations, Integration, Software Development, eCommerce, Auto-scaling Cloud Infrastructure, Caching, Cloud Infrastructure, JSON, REST, RESTFul APIs, Open Source
Full-stack Developer
2022 - 2022
Exitlag
- Engineered performance-critical features for a globally recognized gaming optimization platform focused on network latency reduction.
- Developed cross-platform monitoring agents in Go to collect network latency and connectivity metrics across Linux, Windows, and macOS environments.
- Built back-end services and real-time dashboards using Laravel, Vue, and WebSockets to process, aggregate, and visualize high-volume telemetry data.
- Optimized large-scale monitoring workflows through asynchronous processing, data aggregation techniques, and scalable back-end architectures.
- Engineered distributed data collection pipelines capable of processing network measurements from geographically distributed monitoring nodes.
- Mentored engineering teammates by promoting software design improvements, testing practices, and scalable development techniques.
Technologies: Go, Vue, Vue 2, Vue 3, Bootstrap, Bootstrap 5, jQuery, TypeScript, JavaScript, Swagger, OpenAPI, Jenkins, SQLite, MySQL, Amazon S3 (AWS S3), Elasticsearch, Redis, Amazon Simple Queue Service (SQS), Amazon RDS, GitHub Actions, Amazon EC2, Amazon CloudWatch, Laravel, Laravel 5, Laravel 9, Laravel 10, PHPUnit, Docker, JSON Web Tokens (JWT), Laravel Sanctum, Git, Bitbucket, Jira, Teams, Postman, PHP, AWS IoT, Linux, Scrum, Kanban, ITIL, React, Windows, REST APIs, GraphQL, Microservices, Software QA, Databases, APIs, Database Design, Software Architecture, Relational Databases, Security, Unit Testing, CI/CD Pipelines, GitHub, Database Modeling, Data Modeling, Front-end Development, Automation, Automations, AI Automation, Test Automation, Email Automation, Task Automation, Web App Automation, DevOps, AWS DevOps, DevSecOps, Agile DevOps, DevOps Automation, Regulated Industries, Architecture, System Architecture, Middleware, Enterprise Integration, Full-stack Development, Process Automation, Amazon Web Services (AWS), Back-end, Back-end APIs, Integrations, Web Development, User Experience (UX), User Interface (UI), CSS, HTML, Optimization, Websites, ERP Systems, SaaS, Startups, Product Mindset, B2B, CSS3, Mobile-first Design, Responsive Design, Workflow Automation, API Integration, Data, Functional Programming, Workflow Automation Design, Workflow Automation & System Integration, Front-end, Solution Architecture, Event-driven Architecture, Distributed Systems, Event-driven Systems, Vite, DNS, DNS Servers, VPS, Integration, Observability, Software Development, eCommerce, Technical Leadership, Multi-tenant SaaS, Early-stage Startups, Auto-scaling Cloud Infrastructure, Caching, Cloud Infrastructure, JSON, Apollo, Apollo Server, REST, RESTFul APIs, Open Source
Full-stack Developer
2020 - 2022
SM.Places
- Developed and maintained full-stack applications with a focus on modular architecture and 3rd-party API integrations for a Brazilian digital company and big telecommunication players.
- Implemented scalable back-end solutions using Laravel, MySQL, Redis, and Elasticsearch to improve search capabilities, application performance, and data processing.
- Collaborated with cross-functional Agile teams to deliver high-quality software for enterprise customers while maintaining production reliability and continuous delivery.
- Designed a high-performance file search solution by implementing a custom binary search algorithm, enabling fast lookups without introducing additional database dependencies.
- Applied Agile methodologies, code reviews, automated testing, and API documentation to improve software quality and delivery consistency.
- Contributed to both back-end and front-end initiatives using Laravel, Next.js, React, and Node.js across multiple customer projects.
Technologies: AWS IoT, Amazon CloudWatch, Amazon EC2, Amazon RDS, Amazon S3 (AWS S3), Amazon Simple Queue Service (SQS), Apache, APC, Laravel, Laravel 5, Laravel 8, Laravel 10, Bootstrap, jQuery, TypeScript, JavaScript, Swagger, OpenAPI, Jenkins, SQLite, Agile, Scrum, Jira, Kanban, PHPUnit, Bootstrap 4, Slack, Rally, Postman, Laravel Sanctum, Elasticsearch, Redis, Bugsnag, Docker, JSON Web Tokens (JWT), OAuth 2, Git, Bitbucket, PHP, MySQL, Linux, ITIL, React, MercadoPago API, PayPal, PayPal API, Windows, REST APIs, Software QA, Databases, APIs, Database Design, Software Architecture, Relational Databases, Security, Unit Testing, CI/CD Pipelines, Artificial Intelligence (AI), Microsoft Excel, Database Modeling, Data Modeling, Front-end Development, Automation, Automations, AI Automation, Test Automation, Email Automation, Task Automation, Web App Automation, Regulated Industries, Architecture, System Architecture, Middleware, Enterprise Integration, Full-stack Development, Process Automation, Amazon Web Services (AWS), Back-end, Back-end APIs, Integrations, Web Development, User Experience (UX), User Interface (UI), Google Analytics, CSS, HTML, SEO Tools, Search Engine Optimization (SEO), Optimization, Social Media APIs, Websites, ERP Systems, SaaS, Startups, Product Mindset, B2B, CSS3, Figma, Mobile-first Design, Responsive Design, Workflow Automation, API Integration, Data, Workflow Automation Design, Front-end, Solution Architecture, Event-driven Architecture, Distributed Systems, Event-driven Systems, Marketing Technology (MarTech), Affiliate Marketing, VPS, Funnel Marketing, Integration, Image Processing, Software Development, Affiliate Tracking, eCommerce, Marketplaces, Payment APIs, Payment Gateways, Payment Processing, Real-time Payment Processing, Technical Leadership, Multi-tenant Architecture, Multi-tenant SaaS, Analytics, Early-stage Startups, Auto-scaling Cloud Infrastructure, Caching, Cloud Infrastructure, JSON, REST, RESTFul APIs, Open Source
Full-stack Software Developer
2019 - 2020
Rentcars.com
- Built back-end solutions supporting international payment processing, Adyen payments integrations, financial reconciliation, and partner integrations across multiple markets.
- Developed software for mission-critical financial operations requiring accuracy, reliability, and high availability.
- Designed serverless integrations using AWS Lambda and message-driven architectures to decouple payment processing workflows with Python scripts integrated with SQS and CloudWatch.
- Worked across CodeIgniter, Laravel, Doctrine, and Vue to evolve large-scale production systems with minimal operational disruption.
Technologies: Agile, Agile QA, Amazon CloudWatch, Amazon EC2, Amazon RDS, Amazon S3 (AWS S3), Amazon Simple Queue Service (SQS), Apache, APC, AWS IoT, CodeIgniter, Doctrine, PHPUnit, Laravel 5, Eloquent, Java 8, Hibernate, JUnit, jQuery, Vue, Vue 2, TypeScript, JavaScript, Jenkins, MySQL, Docker, Git, GitHub, Bugsnag, Watchdog, Slack, Python, Python 3, Postman, Adyen Payments, PayPal, PayPal API, PHP, Linux, Scrum, Kanban, Redis, REST APIs, Microservices, Laravel, Software QA, Databases, Mobile, APIs, Database Design, Software Architecture, Relational Databases, Security, Unit Testing, Lambda Functions, CI/CD Pipelines, Microsoft Excel, Database Modeling, Data Modeling, Front-end Development, Automation, Automations, AI Automation, Test Automation, Email Automation, Task Automation, Web App Automation, Regulated Industries, Architecture, System Architecture, Middleware, Enterprise Integration, Full-stack Development, Process Automation, Amazon Web Services (AWS), Back-end, Back-end APIs, Integrations, Web Development, User Experience (UX), User Interface (UI), CSS, HTML, Optimization, Websites, ERP Systems, SaaS, Startups, Product Mindset, B2B, CSS3, Mobile-first Design, Responsive Design, Workflow Automation, API Integration, Data, Functional Programming, Front-end, Solution Architecture, Event-driven Architecture, Distributed Systems, Event-driven Systems, ERP Technologies and Implementations, Affiliate Marketing, Integration, Software Development, Affiliate Tracking, eCommerce, Marketplaces, Payment APIs, Payment Gateways, Payment Processing, Real-time Payment Processing, Technical Leadership, Multi-tenant Architecture, Auto-scaling Cloud Infrastructure, Caching, Cloud Infrastructure, JSON, REST, RESTFul APIs, Open Source
DevOps Engineer and Full-stack Developer
2019 - 2020
BRQ SOLUCOES EM INFORMATICA
- Architected enterprise applications using Java, Spring, Hibernate, Oracle, and Vue while delivering secure, production-ready features for banking platforms.
- Supported CI/CD initiatives by improving deployment pipelines, release automation, and development workflows using Bamboo, Docker, and shell scripting.
- Built real-time notification features using WebSockets and email integrations, improving communication across distributed development teams and business users.
- Collaborated with release management teams to streamline software delivery processes, increasing deployment reliability and operational efficiency.
Technologies: Java 8, Java, JUnit, Spring 5, Spring Boot, Spring MVC, Hibernate, Lombok, Oracle 12c, Oracle Database, Vue, Vue 2, TypeScript, JavaScript, Bamboo, PostgreSQL, PostgreSQL 9, Docker, JSON Web Tokens (JWT), OAuth 2, Git, Bitbucket, Bitbucket API, Jira, Jira REST API, Microsoft Teams, Rally, Postman, Linux, Windows, Scrum, Kanban, ITIL, REST APIs, Software QA, Databases, Mobile, APIs, Database Design, Software Architecture, Relational Databases, Security, Unit Testing, CI/CD Pipelines, Microsoft Excel, Database Modeling, Data Modeling, Front-end Development, Automation, Automations, AI Automation, Test Automation, Email Automation, Task Automation, Web App Automation, DevOps, AWS DevOps, DevSecOps, Agile DevOps, DevOps Automation, Regulated Industries, Architecture, System Architecture, Middleware, Enterprise Integration, Full-stack Development, Oracle, Process Automation, Integrations, Web Development, User Experience (UX), User Interface (UI), CSS, HTML, Optimization, Websites, B2B, CSS3, Figma, Workflow Automation, API Integration, Data, Functional Programming, Front-end, Solution Architecture, Event-driven Architecture, Distributed Systems, Event-driven Systems, Integration, Observability, Software Development, Technical Leadership, Cloud Infrastructure, JSON, REST, RESTFul APIs, Open Source
Project History
FirstClass eCommerce Platform
I designed and developed FirstClass, a modular eCommerce framework created to accelerate the development and evolution of enterprise online stores. The platform featured a reusable architecture supporting multi-store deployments, configurable business rules, and rapid customization for different business models.
I integrated Brazilian and international payment gateways, shipping providers, fraud prevention services, marketing tools, product catalogs, customer management, data mining, and analytics modules. The architecture emphasized security, scalability, maintainability, and extensibility while exposing standardized APIs for third-party integrations.
I implemented administrative modules, reporting tools, performance optimizations, and security mechanisms to support high-volume transactional environments and complex business workflows.
The framework was successfully commercialized and adopted by MadeiraMadeira, where it became the technological foundation for one of Brazil's largest eCommerce retailers. I contributed throughout the project as a software engineer, systems analyst, software architect, and security specialist, participating in the complete software development lifecycle.
I integrated Brazilian and international payment gateways, shipping providers, fraud prevention services, marketing tools, product catalogs, customer management, data mining, and analytics modules. The architecture emphasized security, scalability, maintainability, and extensibility while exposing standardized APIs for third-party integrations.
I implemented administrative modules, reporting tools, performance optimizations, and security mechanisms to support high-volume transactional environments and complex business workflows.
The framework was successfully commercialized and adopted by MadeiraMadeira, where it became the technological foundation for one of Brazil's largest eCommerce retailers. I contributed throughout the project as a software engineer, systems analyst, software architect, and security specialist, participating in the complete software development lifecycle.
SaaS Email Intelligence Platform
I developed a high-throughput SaaS email intelligence platform that processes and classifies tens of thousands of outbound and inbound email interactions daily.
I designed and implemented a custom expert system (rule-based AI) that automatically identifies customer replies, bounce notifications, delivery failures, spam reports, autoresponder messages, and other SMTP feedback patterns, transforming unstructured email data into actionable business intelligence.
I built a proprietary SMTP reception subsystem from scratch, handling message validation, protocol interpretation, bounce processing, and intelligent categorization workflows.
As a system architect, database administrator, and infrastructure lead, I scaled the platform across multiple Brazilian states, ensuring high availability and reliable processing of large volumes of email.
I designed and implemented a custom expert system (rule-based AI) that automatically identifies customer replies, bounce notifications, delivery failures, spam reports, autoresponder messages, and other SMTP feedback patterns, transforming unstructured email data into actionable business intelligence.
I built a proprietary SMTP reception subsystem from scratch, handling message validation, protocol interpretation, bounce processing, and intelligent categorization workflows.
As a system architect, database administrator, and infrastructure lead, I scaled the platform across multiple Brazilian states, ensuring high availability and reliable processing of large volumes of email.
Distributed Link Curation Platform
https://lnk4st.co/I developed a production-grade link curation platform inspired by Linktree and Lnk.Bio to explore distributed systems, cloud-native architectures, and modern software engineering practices.
Built with React, Next.js, Tailwind CSS, and Chakra UI, the platform integrates automated CI/CD pipelines using GitHub Actions and Vercel while applying microservices and distributed computing concepts in production.
I implemented a comprehensive testing strategy that combined unit, integration, and Cypress tests with automated visual regression tests to improve software quality and release reliability. I also designed secure media storage using private Google Cloud Storage buckets, automated abuse detection, and a media processing pipeline that converts uploaded images, GIFs, and videos into optimized WebP assets. I improved scalability through Redis caching, reducing database load and application latency while enabling efficient horizontal scaling of containerized services.
The project validated production-grade practices in cloud infrastructure, distributed storage, CI/CD automation, caching, security, and scalable application architecture.
Built with React, Next.js, Tailwind CSS, and Chakra UI, the platform integrates automated CI/CD pipelines using GitHub Actions and Vercel while applying microservices and distributed computing concepts in production.
I implemented a comprehensive testing strategy that combined unit, integration, and Cypress tests with automated visual regression tests to improve software quality and release reliability. I also designed secure media storage using private Google Cloud Storage buckets, automated abuse detection, and a media processing pipeline that converts uploaded images, GIFs, and videos into optimized WebP assets. I improved scalability through Redis caching, reducing database load and application latency while enabling efficient horizontal scaling of containerized services.
The project validated production-grade practices in cloud infrastructure, distributed storage, CI/CD automation, caching, security, and scalable application architecture.
AI-assisted Software Development Workflow
https://rstriquer.blogspot.com/2026/07/designing-ai-assisted-software.htmlThis is an ongoing side project focused on improving software engineering productivity through LLM-assisted development workflows and prompt engineering.
I designed and continuously refined specialized prompts for code review, business rule validation, security analysis, implementation planning, and legacy system maintenance. I also built reusable AI-assisted workflows within VS Code agents to accelerate requirements understanding, code analysis, and software delivery.
The project has significantly reduced the time required for reviewing complex code changes and planning implementations by providing structured technical analysis and development guidance.
I designed and continuously refined specialized prompts for code review, business rule validation, security analysis, implementation planning, and legacy system maintenance. I also built reusable AI-assisted workflows within VS Code agents to accelerate requirements understanding, code analysis, and software delivery.
The project has significantly reduced the time required for reviewing complex code changes and planning implementations by providing structured technical analysis and development guidance.
History Teller
I architected an end-to-end AI-powered content generation workflow that transforms raw text into fully produced, YouTube-ready videos.
The platform integrates NLP (IBM Watson NLU) for semantic understanding, keyword extraction, topic classification, and contextual asset discovery across multiple image providers.
I designed an automated orchestration pipeline combining AI-driven text analysis and content enrichment, intelligent image retrieval based on semantic context, Google Text-to-Speech voice synthesis, subtitle generation and timeline synchronization, and automated video rendering and media processing using FFmpeg.
The solution demonstrates expertise in AI workflow orchestration, content automation, multimedia pipelines, and production-grade integration of external AI services.
The platform integrates NLP (IBM Watson NLU) for semantic understanding, keyword extraction, topic classification, and contextual asset discovery across multiple image providers.
I designed an automated orchestration pipeline combining AI-driven text analysis and content enrichment, intelligent image retrieval based on semantic context, Google Text-to-Speech voice synthesis, subtitle generation and timeline synchronization, and automated video rendering and media processing using FFmpeg.
The solution demonstrates expertise in AI workflow orchestration, content automation, multimedia pipelines, and production-grade integration of external AI services.
Schildbach Wallet | Bitcoin Crypto Wallet
I implemented modifications in an old Java version of the Schildbach Wallet application for Android to reduce the time it takes to save the memory contents in the file system, thus ensuring more agility in returning to operation in the event of the application crashing, reducing the need to review the entire ledger history to identify the portfolio balance after the crash.
In this project, I had to review my entire Java and Android development environment because the client's target version was very old, used Maven 3 (I migrated the project to Gradle), and was written when Android Studio was still new.
In the situation, I ended up revisiting my knowledge of blockchain, cryptocurrencies, and bitcoin to ensure that what I was doing was correct.
On that occasion, I had the opportunity to study Testnet in addition to mainnet and make use of some other libraries and applications from other languages, such as bitcoinj (a Java library for manipulating the blockchain), btcd and btcutil from btcsuite (Go libraries for manipulating the blockchain ), as well as umbrelOS. This project facilitates the implementation of some services, such as the testnet.
In this project, I had to review my entire Java and Android development environment because the client's target version was very old, used Maven 3 (I migrated the project to Gradle), and was written when Android Studio was still new.
In the situation, I ended up revisiting my knowledge of blockchain, cryptocurrencies, and bitcoin to ensure that what I was doing was correct.
On that occasion, I had the opportunity to study Testnet in addition to mainnet and make use of some other libraries and applications from other languages, such as bitcoinj (a Java library for manipulating the blockchain), btcd and btcutil from btcsuite (Go libraries for manipulating the blockchain ), as well as umbrelOS. This project facilitates the implementation of some services, such as the testnet.
PsicologoAgora.com.br | Real-time WebRTC Video Chat
https://www.psicologoagora.com.brA web directory of psychologists that uses distributed processing with crc32 and similar calculation techniques to validate the modified information on the client and their demand to be saved or not in the database. Provide logins with Google, LinkedIn, and Facebook, and have a chat with WebRTC technology for video and voice communication, completely made for use through browsers and devices, without the need for installation.
I highlighted this project because, in addition to working as an analyst, developer, infrastructure administrator, and several other technical roles, I also worked more prominently as an entrepreneur, managing relationships with other partners at the company.
I highlighted this project because, in addition to working as an analyst, developer, infrastructure administrator, and several other technical roles, I also worked more prominently as an entrepreneur, managing relationships with other partners at the company.
Algorithmic Trading Platform for B3 and U.S. Markets
A professional trader contracted me to design and develop algorithmic trading software for the Brazilian (B3) and U.S. financial markets. The platform was initially built with NinjaTrader and later migrated to MetaTrader 5 to comply with Brazilian regulatory requirements.
I developed automated trading strategies featuring configurable buy/sell signals, pending orders, stop-loss, stop-limit protection, profit targets, partial exits, and dynamic order management. Implemented technical analysis algorithms based on SMA, MACD, and custom rule-based strategies.
I built custom trading dashboards, market visualization tools, and event-driven execution logic. I implemented risk management mechanisms to automate trading decisions and maintain strict control over open positions and order lifecycles.
The development environment was isolated using Oracle VirtualBox to reproduce trading platforms, broker integrations, and testing scenarios. The project roadmap included AI-driven market sentiment analysis but was discontinued due to regulatory changes in Brazil.
I developed automated trading strategies featuring configurable buy/sell signals, pending orders, stop-loss, stop-limit protection, profit targets, partial exits, and dynamic order management. Implemented technical analysis algorithms based on SMA, MACD, and custom rule-based strategies.
I built custom trading dashboards, market visualization tools, and event-driven execution logic. I implemented risk management mechanisms to automate trading decisions and maintain strict control over open positions and order lifecycles.
The development environment was isolated using Oracle VirtualBox to reproduce trading platforms, broker integrations, and testing scenarios. The project roadmap included AI-driven market sentiment analysis but was discontinued due to regulatory changes in Brazil.
Lime and Limestone Community of Paraná (Intelligent Web Spider)
I worked on a project for the Brazilian government through Mineropar (a Brazilian government agency oriented towards organizing mining companies and various other services related to geology) and the association of Lime and Limestone of Paraná state.
An internet crawler (spider robot) was developed for internet news mining using natural language interpretation techniques. A map server was also built using the MapServer open source server, which was used to enable a converter we created in PHP that exchanged geolocation data from ArcGIS received files to the MapServer format and allowed me to present the information in multiple web map options, such as Google Maps and OpenStreetMap, which I built using JavaScript. In this project, I worked as an analyst, developer, and manager of the team.
An internet crawler (spider robot) was developed for internet news mining using natural language interpretation techniques. A map server was also built using the MapServer open source server, which was used to enable a converter we created in PHP that exchanged geolocation data from ArcGIS received files to the MapServer format and allowed me to present the information in multiple web map options, such as Google Maps and OpenStreetMap, which I built using JavaScript. In this project, I worked as an analyst, developer, and manager of the team.
Intelligent Medical Claims Audit and Contract Management Platform
I designed and developed an intelligent healthcare audit and contract management platform for Unimed Brasil, one of Latin America's largest healthcare providers. The solution automated the validation of medical claims, including procedures, medications, equipment, and other treatment-related expenses.
I implemented a domain-specific rule engine that analyzed complex contracts and asynchronously validated medical claims against thousands of business rules, identifying billing inconsistencies, unauthorized procedures, and cost deviations before payment approval. I also developed collaborative workflows allowing physicians, auditors, and administrators to review disputed claims, while the expert system automatically validated many cases without human intervention.
The platform also generated regulatory XML files compliant with Brazilian healthcare standards, enabling secure data exchange and mandatory government reporting. Its highly configurable architecture and business intelligence capabilities significantly increased automation and contributed to an estimated 40% reduction in the client's operational costs.
I implemented a domain-specific rule engine that analyzed complex contracts and asynchronously validated medical claims against thousands of business rules, identifying billing inconsistencies, unauthorized procedures, and cost deviations before payment approval. I also developed collaborative workflows allowing physicians, auditors, and administrators to review disputed claims, while the expert system automatically validated many cases without human intervention.
The platform also generated regulatory XML files compliant with Brazilian healthcare standards, enabling secure data exchange and mandatory government reporting. Its highly configurable architecture and business intelligence capabilities significantly increased automation and contributed to an estimated 40% reduction in the client's operational costs.
Education
2023 - 2027
Bachelor's Degree in Software Engineering
UniFatecie University Center - Curitiba, Brazil
1996 - 2000
Technician Degree in Data Processing
Dominus College - Curitiba, Brazil
Certifications
JUNE 2026 - PRESENT
SQL (Advanced) Certificate
Hacker Rank
JUNE 2023 - PRESENT
Promises and Asynchronism with JavaScript
DIO
JANUARY 2022 - PRESENT
Laravel TestDome Certificate
TestDome
Skills
Libraries/APIs
React, REST APIs, Back-end APIs, Social Media APIs, GraphQL API, Stripe, Stripe API, Node.js, NinjaScript, jQuery, Google API, Passport.js, Drizzle, SendGrid API, OpenAPI, Slack API, Vue, Vue 2, Vue 3, Google Cloud API, Lombok, Bitbucket API, Jira REST API, Doctrine, PayPal API, MercadoPago API, jQuery UI, FFmpeg, Bitcoinj, Google Maps, Google Maps SDK, ArcGIS, OpenStreetMap API, GitHub API
Tools
Microsoft Excel, Google Analytics, Figma, Claude, Claude Code, Terraform, Jenkins, Apache, RabbitMQ, Telegraf, Amazon CloudWatch, Grafana, Grafana k6, Postman, Jira, Mongoose, SendGrid, Amazon Simple Queue Service (SQS), Git, Slack, Bitbucket, Rally, Bugsnag, GitHub, Bamboo, Microsoft Teams, Watchdog, Adyen Payments, Vagrant, Capistrano, Subversion (SVN), GitLab, OWASP Zed Attack Proxy (ZAP), NinjaTrader, SugarCRM, NGINX, Apache Maven, Android Studio, Gradle, BTC Wallet, Zabbix, VirtualBox, GIS, Web GIS, PhpMyAdmin, BigQuery
Languages
JavaScript, CSS, HTML, CSS3, C, GraphQL, TypeScript, PHP, Java, C++, Progress 4GL, Delphi, Python, PHP 8, SQL, Go, Java 8, Python 3, C#, MQL, MQL4, MQL5, Bash, UML
Paradigms
Microservices, Automation, Test Automation, DevOps, DevSecOps, B2B, Functional Programming, Event-driven Architecture, REST, Search Engine Optimization (SEO), Scrum, Kanban, ITIL, Database Design, E2E Testing, Unit Testing, Agile
Storage
Amazon S3 (AWS S3), Database Migration, Database Modeling, Auto-scaling Cloud Infrastructure, JSON, PostgreSQL, Redis, Elasticsearch, MySQL, Databases, Relational Databases, MongoDB, Amazon DynamoDB, InfluxDB, Memcached, SQLite, Google Cloud, Oracle 12c
Frameworks
Express.js, Laravel, NestJS, Bootstrap, OAuth 2, Symfony, Jest, Swagger, Next.js, PHPUnit, JSON Web Tokens (JWT), Laravel 5, Laravel 9, Laravel 10, Laravel 8, Tailwind CSS, Cypress, JUnit, Spring 5, Spring Boot, Spring MVC, Hibernate, CodeIgniter, Eloquent, Angular, .NET Core, Selenium, Zend Framework, gRPC
Platforms
Docker, Amazon Web Services (AWS), Google Cloud Platform (GCP), AWS IoT, Linux, FreeBSD, Windows, Mobile, Android, DigitalOcean, AWS Lambda, LocalStack, Amazon EC2, Vercel, Oracle Database, Amazon Linux, Slackware, SuiteCRM, Blockchain, MetaTrader, MetaTrader 5, MetaTrader 4, Oracle
Other
Data Modeling, Automations, AI Automation, Email Automation, Task Automation, Web App Automation, Agile DevOps, DevOps Automation, Regulated Industries, Architecture, System Architecture, Middleware, Enterprise Integration, Full-stack Development, Process Automation, Back-end, Integrations, Web Development, Optimization, Websites, ERP Systems, AI Integration, SaaS, Startups, AI Tools, Product Mindset, Mobile-first Design, Responsive Design, Workflow Automation, API Integration, Data, Workflow Automation Design, Workflow Automation & System Integration, Front-end, Solution Architecture, Distributed Systems, Event-driven Systems, ERP Technologies and Implementations, DNS, DNS Servers, Marketing Technology (MarTech), Affiliate Marketing, VPS, Funnel Marketing, Integration, Observability, Software Development, Affiliate Tracking, eCommerce, Marketplaces, Payment APIs, Payment Gateways, Payment Processing, Real-time Payment Processing, Vibe Coding, Multi-tenant Architecture, Multi-tenant SaaS, Analytics, Caching, Cloud Infrastructure, Consulting, RESTFul APIs, Open Source, Artificial Intelligence (AI), Front-end Development, Data Engineering, AWS DevOps, AI Agent Orchestration, User Experience (UX), User Interface (UI), SEO Tools, Cursor AI, Large Language Models (LLMs), Speech-to-Text (STT), Medical Software, Vite, Image Processing, Technical Leadership, Early-stage Startups, Apollo, Apollo Server, GitHub Actions, SQL Server, PlantUML, Agile QA, Software QA, APIs, Software Architecture, Discord, TypeORM, Cloudflare, MySQL DBA, Security, APC, BullMQ, Lambda Functions, Bootstrap 5, Amazon RDS, Laravel Sanctum, Teams, Bootstrap 4, Chakra UI, CI/CD Pipelines, WebP, Secure Storage, ESLint, PostgreSQL 9, PayPal, Sphinx, CSV, XMPP, Code Review, AI Development, LLM Agents, Bitcoin, Cryptocurrency, Mainnet, Testnet, Statistics, Full-stack, Email, SMTP, Oracle VM VirtualBox, AI Algorithms, Algorithms, Risk Management, Algorithmic Trading, Algorithmic Trading Analysis, Technical Analysis, Mapping, Map Server, Natural Language Processing (NLP), ArcGIS API, Scrum Master, OpenStreetMap, Query Optimization, MySQL Administration, Healthcare Services, Healthcare Software, Mastercard, PagSeguro, Business Rules, Prompt Engineering, LLM Fine-tuning, Google BigQuery, LLM Integration
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