Davi Busanello
Verified Expert in Engineering
Git Developer
Porto Alegre - State of Rio Grande do Sul, Brazil
Toptal member since March 31, 2023
Davi is a senior software engineer with over 14 years of experience and a knack for solving problems. He specializes in Node.js, Ruby on Rails, TypeScript, PostgreSQL, Kubernetes, GCP, AWS, Kafka, Redis, Sidekiq, and related technologies. He has worked in various businesses and is highly motivated to grow his knowledge in the most diverse areas. Davi has also led technical initiatives, designed fault-tolerant systems, performed interviews, and mentored teams through tech talks and workshops.
Portfolio
Experience
- Git - 11 years
- JavaScript - 10 years
- PostgreSQL - 10 years
- Ruby - 8 years
- Ruby on Rails (RoR) - 8 years
- Docker - 7 years
- Node.js - 6 years
- TypeScript - 5 years
Preferred Environment
PostgreSQL, TypeScript, Ruby, Ruby on Rails (RoR), Docker, JavaScript, Back-end, MacOS, Linux, Visual Studio Code (VS Code)
The most amazing...
...thing I've built is an automated investment platform called Warren Brasil and a notification service fully integrated with the platform and CRM.
Work Experience
Software Engineer Consultant
Self-employed
- Developed phone communication interception technologies for Brazilian police forces as an outsourced contributor.
- Provided supply chain solutions as an outsourced contributor.
- Conducted workshops and mentored teams using Docker containers and applying continuous integration.
Lead Engineer (via Toptal)
Beyond Finance, LLC
- Diagnosed and resolved application performance issues, reducing memory consumption by 10% and increasing lead conversion rates by 5%.
- Led the design and development of a new lead routing engine with auto-tracking of metrics, A/B testing support, and easy extensibility, enabling transparent analytics for the product team.
- Worked on the new engine which reduced the delivery time for new lead routing segments by one-third.
- Collaborated with the product team to document and review existing business logic, identifying gaps and improving test coverage with missing scenarios.
Senior Back-end Engineer
Toptal
- Developed solutions with phone calls, video conferences, SMS, SMTP, audio and video recording processing, and intelligent meeting scheduling.
- Led initiatives for new features, built architecture, and developed real-time communication for customers and coworkers.
- Integrated our tools with many third-party services, including BlueJeans, Zoom, Zendesk, Twilio, Google Calendar, Gmail, ZoomInfo, Slack, SendGrid, and other standard communication protocols such as SMTP and SMS.
- Interviewed engineer candidates to join the company and mentored new teammates.
- Drove the initiative to adopt observability and monitoring into the team products.
Senior Software Engineer
Warren Corretora de Titulos e Valores Mobiliários e Câmbio Ltda
- Developed Warren's fintech product, focusing on API architecture.
- Mentored junior and mid-level developers through tech talks, code reviews, and chapter meetings.
- Worked to improve our technical quality and apply CI/CD to our projects.
- Led the team to develop an in-house push notification service integrated with the platform and the CRM. Received an offer to become a company partner.
- Built the initial core of the clients' checking accounts, integrating with the Brazilian financial system.
Senior Software Developer
E-Sales Soluções em Integração
- Developed and maintained entregou.com, a supply chain business integration and management service that required 24/7 uptime.
- Facilitated the codebase upgrade from PHP 4, 5.2, and 5.3 to PHP 7, introducing the container concept to the technical teams with Docker.
- Spread the Agile and DevOps culture with the teams and planned the automated tests and CI/CD adoption on the main product.
Software Developer
DBSeller Sistemas Integrados
- Developed, maintained, tested, and provided technical support for products, working in groups to reduce technical debts and adopt CI/CD.
- Migrated the codebase from PHP 5.3 to PHP 5.6 and 7.
- Developed e-Cidade, an operations support system for Public Software City Government and other government agencies with the capacity to meet Brazilian public organizations' needs.
- Conducted workshops and light talks about PHP 7 adoption, Ruby, unit tests, Docker, code quality best practices, Git workflows, and how to use our CI/CD workflow.
- Built internal CI/CD software to deploy our products in various clients' infrastructures and a web app to view the timeline of releases and the status of upgrades. Used Angular, Silex, Shell, Ruby, AWS, GitLab, Jenkins, and CVS.
- Reduced the number of bugs reported by technical support by 75% after working on a project where I used static code analysis on each commit, which increased code quality.
Web Developer
Visonet
- Developed and maintained our SaaS solutions for foreign trade industries.
- Built and maintained Comexlabs, the Brazilian market's first full-featured foreign trade simulator.
- Maintained the drawback algorithm, which consists of all import and export data from companies and traces all imported raw materials in which manufactured products were exported to final consumers, enabling the reduction of industry taxes.
Developer
Tempore Customized Solutions
- Gathered and analyzed requirements, then developed, maintained, and introduced the software to the clients.
- Developed ERP, commerce management, and juridical system web software.
- Built and analyzed data for business intelligence with Pentaho.
- Handled the research and development of a solution to use NoSQL databases in Pentaho Community Edition.
Experience
Toptal
http://toptal.com/I also contributed to Toptal's intelligent meeting scheduling solution for interviews between staff, customers, and talent, a UI integrated into the company's platform.
Warren Brasil
https://warren.com.br/I developed our product focusing on API architecture, resulting in a more scalable and maintainable system. I also took on a leadership role by mentoring junior and mid-level developers through tech talks, code reviews, and chapter meetings. Additionally, I led the team in developing an in-house push notification service integrated with our platform and CRM.
I also focused on improving our technical quality and implementing CI/CD processes for more efficient and reliable software delivery. This effort helped streamline our development process and ensured our software was of the highest quality. As a result, I was offered a partnership with the company, indicating that my colleagues and superiors highly valued and respected my contributions to the product and team.
Justo | Justiceiro do Dinheiro
https://github.com/justo-justiceiro/justo-chatbot/The project aimed to teach financial education. Its starting content explains Brazilian bank standard products and simple tips for making better choices. We were selected to be mentored for six months to continue the project development. During the incubation period, the product was chosen to be internalized by the hackathon organizer.
Education
Specialization (2025) in Financial Planning and Investment Analysis
Anhanguera Educacional - São Paulo, Brazil
Progress Toward a Specialization in Software Engineering
Centro Universitário UNA - Belo Horizonte, Minas Gerais, Brazil
Associate's Degree in Systems Analysis and Development
Faculdade Anglicana de Erechim - Erechim, Rio Grande do Sul, Brazil
Technical-Vocational Program in Industrial Electronics Technology
Instituto Anglicano Barão do Rio Branco - Erechim, Brazil
Certifications
Scrum Foundation Professional Certificate
CertiProf
DevOps Essentials Professional Certificate
CertiProf
Ruby on Rails from Basic to Advanced
e-Genial
Front-end Immersion
e-Genial
Skills
Libraries/APIs
Node.js, Sidekiq, React, REST APIs, Zendesk API, Twilio API, Open APIs, Vue 2, Ruby ERB, Redux-Saga, Vuex, Vue, Vue 3, Puppeteer
Tools
Git, RSpec, RuboCop, GitHub, AWS SDK, Cucumber, Grafana, Kibana, Sentry, FullStory, Jenkins, Ansible, Terraform, Helm, Jira, CircleCI, ELK (Elastic Stack), Subversion (SVN), CVS, Shell, GitLab, Amazon Elastic Block Store (EBS), Amazon Simple Queue Service (SQS), Google Assistant, Dialogflow, Fireworks, Bitbucket, NGINX, Vue CLI, Deployer, Mocha, Google Cloud Console, Trello, Miro, Optimizely, Docker Compose, Figma, HubSpot Content Hub
Languages
Ruby, TypeScript, JavaScript, PHP 5, PHP, HTML, CSS, SQL, GraphQL, Bash, Python, PHP 4, PHP 7, Java, Delphi 7, C#.NET, Sass, HTML4, CSS2, Rust
Paradigms
B2C, B2B, Unit Testing, Agile, Microservices, Design Patterns, Clean Code, REST, Scrum, Kanban, PMBOK, Agile Software Development, Continuous Deployment, Continuous Delivery (CD), Continuous Integration (CI), Web UI Design, Serverless Architecture, DevOps, Automation, Database Design, Microservices Architecture
Frameworks
Ruby on Rails (RoR), Jest, Cypress, Express.js, Serverless Framework, Bootstrap, Selenium, AngularJS, Zend Framework, CakePHP, Silex, Jakarta Server Pages (JSP), Laravel 5, Lumen, Jasmine, Tailwind CSS, Ruby on Rails 7, Ruby on Rails 6
Platforms
Docker, Linux, Amazon Web Services (AWS), MacOS, Kubernetes, Apache Kafka, New Relic, AWS Lambda, Oracle, Pentaho, Amazon Alexa, Google Cloud Platform (GCP), Salesforce, MetaTrader, MetaTrader 5, Zendesk, Heroku, Visual Studio Code (VS Code)
Storage
PostgreSQL, Redis, Google Cloud, MongoDB, PL/SQL, MySQL, MonetDB, Datadog, Databases, DB, Elasticsearch
Industry Expertise
Trading Systems
Other
Development, Back-end, APIs, Third-party APIs, Code Review, IT Consulting, Web Development, API Design, Robust Web Development, Full-stack, API Integration, Architecture, JSON REST APIs, CI/CD Pipelines, Integration Testing, GitHub Actions, Cloud Infrastructure, System Architecture, WebSockets, Hexagonal Architecture, TypeORM, Oracle8i, Lean, Analysis, Marketing Mix, Business, Business Law, Agile Software Testing, Algorithms, Web UX, Quality Auditing, Software Design, Software Architecture, Quality Assurance (QA), Mentorship, Apache Cassandra, Ruby Gems, Electric, Electronics, Electricity, Networks, Computer Repair, Industrial IT, Robotics, Programming, Network Design, Electrical Design, Product Design, Front-end, Amazon RDS, Full-stack Development, Uptime Monitoring, Software Troubleshooting, Project Scoping, Technical Leadership, Prismic, Financing, Investing, Fundamental Analysis, Technical Analysis, Trading, TradingView, Trading Bots, Stock Analysis, Stock Market, Stock Trading, Stock Price Analysis, Options Trading, Futures & Options, Option Pricing, Options Theory, Derivatives, Fixed-income Derivatives, Derivative Pricing, Investment Funds, Investment Analysis, Investment Modeling, Investment Strategy, Investment Manager, Graphical Analysis, Serverless, Algorithmic Trading, AWS Secrets Manager, CMS Made Simple (CMSMS), Content Management Systems (CMS), Customer Relationship Management (CRM), Leadership, OpenAI, System Design
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