Alexandros is available for hire
Hire AlexandrosAlexandros Elegreris
Verified Expert in Engineering
Full-stack Developer
Athens, Central Athens, Greece
Toptal member since March 4, 2024
Bio
Alexander is an engineer who excels in various environments, from the fast-paced tech hubs of New York to the demanding ecosystems of Zurich. He has led transformative projects that have significantly improved system performance and operational efficiency. With experience leading teams in the Agile methodology, Alexandros' approach combines technical mastery with visionary leadership, driving his teams toward groundbreaking achievements.
Portfolio
SmartChain Services USA, Inc
Python, Web Scraping, Data Scraping, React, NestJS...
Cardone Ventures, LLC
React, Node.js, JavaScript, TypeScript, Full-stack...
agentgg.ai
Agentic AI, AI Agents, AWS Nitro System, Encryption, Full-stack, NestJS, Python...
Experience
- Python - 15 years
- Relational Databases - 10 years
- Microservices - 7 years
- API Architecture - 7 years
- Amazon Web Services (AWS) - 7 years
- NoSQL - 7 years
- FastAPI - 3 years
- WebSockets - 3 years
Preferred Environment
Linux, Windows, Slack
The most amazing...
...thing I've worked on is a system for managing manual and automatic trades, enhancing the reliability of trading operations for the largest crypto ETF.
Work Experience
Web Scraping Developer
2025 - 2026
SmartChain Services USA, Inc
- Led a team of engineers in architecting and building a comprehensive energy price prediction and advisory platform, a distributed microservices system designed to provide real-time pricing recommendations for commodities trading operations.
- Designed and implemented the entire system architecture, including an event-driven orchestrator service, a price advisory engine with Celery-based background task processing, a price assessment module for volume simulation and scenario optimization.
- Leveraged FastAPI for high-performance REST APIs, Redis for pub/sub messaging and job queuing, and a hybrid database architecture using MongoDB for document storage and PostgreSQL for relational data.
- Established and maintained robust CI/CD pipelines using GitHub Actions, automating testing, building, and deployment workflows. Implemented comprehensive containerization strategies using Docker Compose for development, staging, and production environments.
- Developed market factor computation systems integrating Yahoo Finance APIs and NOAA weather data, multi-day factor analysis with real-time progress tracking. Built calibration pipelines for model optimization and backtesting against historical data.
- Built a modern React/TypeScript front end with Vite, featuring real-time job monitoring, interactive Plotly.js data visualizations, and export capabilities. Implemented responsive UI/UX following best practices for data-intensive applications.
Technologies: Python, Web Scraping, Data Scraping, React, NestJS, Artificial Intelligence (AI), Azure, FastAPI, Vite, Vitest, Cloudflare, Authentication, AI Programming, GitHub Actions, Redux, RESTFul APIs, Communication, Business Logic, High Code Quality, Troubleshooting & Issue Resolution, Distributed Systems, Large-scale Projects, Scripting, Security, lxml, Pub/Sub, AI Design, Testing, Platforms, AI Copilots, Microsoft Power BI, Microsoft 365, Claude, Claude API, Claude Code, Dashboards, Claude Agent SDK, AI Agent Orchestration, AI Architecture, AI Automation, Gemini, Gemini API, Datadog, Prompt Engineering, Agentic AI, Generative Artificial Intelligence (GenAI), Cloud, Agentic Development, ETL Pipelines, Caching, Query Optimization, Load Balancers, Technical Architecture, Multi-tenant SaaS, Compliance, AI Tools, Infrastructure, Hosting, Real-time Systems, AI Prompts, Event-driven Systems, Real-time Processing, Scalable Architecture, Data Modeling, Pydantic, Web3, Docker, AI-assisted Development, Anthropic, LLM Integration, Front-end, LLM Agents, Agentic AI Systems, Agentic Workflow Design, Model Context Protocol (MCP), Grafana, System Architecture
Full-stack JavaScript Engineer
2025 - 2025
Cardone Ventures, LLC
- Designed and implemented a multi-tenant architecture supporting role-based access control with granular permissions at the entity, action, and context level.
- Designed a robust PostgreSQL database schema comprising 80+ normalized tables with comprehensive foreign key constraints, JSONB fields for flexible metadata storage, and strategic indexing for high-performance queries.
- Implemented a comprehensive audit logging system capturing all user actions with full change tracking for compliance and security requirements.
- Containerized the entire application stack using Docker with multi-stage builds for optimized production images, orchestrated through Docker Compose for local development and Kubernetes for production deployment on Azure.
- Established CI/CD pipelines using GitHub Actions for automated testing, linting, build verification, and seamless deployment workflows, ensuring code quality gates and zero-downtime deployments.
Technologies: React, Node.js, JavaScript, TypeScript, Full-stack, Large Language Models (LLMs), PostgreSQL, Vite, Vitest, Cloudflare, CSRF Protection, Team Leadership, Authentication, OAuth, AI Programming, Azure, GitHub Actions, Redux, Stripe Payments, Jest, RESTFul APIs, Communication, Business Logic, High Code Quality, Mentorship, Troubleshooting & Issue Resolution, Large-scale Projects, Scripting, Security, Infrastructure as Code (IaC), Pub/Sub, Amazon Kinesis, Amazon Kinesis Data Firehose, AI Design, Agentic RAG Systems, IT Security, Testing, Platforms, AI Copilots, Microsoft Power Automate, Microsoft Power BI, Microsoft 365, SharePoint, Claude, Claude API, Claude Code, Dashboards, Claude Agent SDK, AI Agent Orchestration, AI Architecture, AI Automation, CRM APIs, Eclipse Gemini, Gemini, Gemini API, LangChain, Railway, SendGrid, Twilio, Prompt Engineering, Agentic AI, Generative Artificial Intelligence (GenAI), Cloud, Agentic Development, Billing Systems, Caching, Query Optimization, Load Balancers, Stripe, Technical Architecture, Multi-tenant SaaS, AI Tools, Infrastructure, Hosting, Express.js, Cursor AI, AI Prompts, Scalable Architecture, Pydantic, Base44, Replit, Docker, AI-assisted Development, Anthropic, LLM Integration, Multitenancy, Front-end, LLM Agents, Agentic AI Systems, Agentic Workflow Design, Model Context Protocol (MCP), Metrics, System Architecture, Vibe Coding, Payments, Shopify API
Lead Architect and Developer
2025 - 2025
agentgg.ai
- Built enclave-native agents that run secure LLM calls. Prompts pass in-memory policy checks, then tunnel to OpenAI or Anthropic. Replies are streamed, sealed, and never exposed outside the enclave—keeping the full stack blind to user content.
- Designed AgentGG’s encryption around AWS Nitro Enclaves and per-request keys. User inputs are encrypted client-side, decrypted only in-enclave, then re-encrypted and stored as sealed frames with KMS-backed KEKs. No plaintext leaves the secure boundary.
- Led AgentGG from concept to production. Turned founder ideas into a real system, authored the v3.0 design, and shipped in 12 weeks: secure chat, agent plugins, audit trail—deployed across EKS, API Gateway, NestJS, and a custom Python enclave.
Technologies: Agentic AI, AI Agents, AWS Nitro System, Encryption, Full-stack, NestJS, Python, C, FastAPI, Machine Learning Operations (MLOps), Helm, Large-scale Distributed Systems, Multimedia, AI Model Training, API Applications, Cloudflare, CSRF Protection, Team Leadership, Authentication, OAuth, AI Programming, Large Language Model Operations (LLMOps), GitHub Actions, Redux, Stripe Payments, Jest, Generative Artificial Intelligence (GenAI), Retrieval-augmented Generation (RAG), RESTFul APIs, Prisma Orm, Communication, Business Logic, High Code Quality, Mentorship, Strategy, Troubleshooting & Issue Resolution, Distributed Systems, Scripting, Burp Suite, Security, Infrastructure as Code (IaC), Pub/Sub, Go, AI Design, Agentic RAG Systems, IT Security, Testing, Platforms, AI Copilots, Microsoft Power Automate, Claude, Claude Agent SDK, AI Agent Orchestration, AI Architecture, AI Automation, Gemini, Gemini API, Datadog, LangChain, Railway, SendGrid, Twilio, Prompt Engineering, Product Management, Cloud, Agentic Development, ETL Pipelines, Caching, Query Optimization, Load Balancers, Latency & Throughput Analysis, Marketplaces, Stripe, Technical Architecture, Vercel, Multi-tenant SaaS, Compliance, AI Tools, Infrastructure, Hosting, Express.js, Cursor AI, Real-time Systems, AI Prompts, Event-driven Systems, Real-time Processing, Scalable Architecture, Data Modeling, Pydantic, Docker, Anthropic, LLM Integration, Multitenancy, Front-end, LLM Agents, Agentic AI Systems, Agentic Workflow Design, Model Context Protocol (MCP), System Architecture, Amazon API Gateway, Payment Processing, Payment Gateways, Vibe Coding, Payments, Chatbots
Senior Trading Engineer
2024 - 2025
Web3 Labs FZE
- Built a high-frequency trading bot using Rust, optimizing for true concurrency and ultra-low latency. Kafka, nng, and Flink handled real-time data streaming, ensuring rapid market analysis and execution.
- Leveraged PostgreSQL and Redis to store data for later analysis, optimizing speed and reliability. The algorithms were fine-tuned for precision.
- Used Next.js to power the front end, providing real-time insights and controls. By integrating advanced concurrency models, the bot executed trades with minimal delay, maximizing efficiency in algorithmic trading.
Technologies: Trading Bots, Smart Contracts, Blockchain, Python, Solana, Cryptocurrency, Rust, Minimum Viable Product (MVP), Cryptocurrency Trading, Cryptocurrency Exchanges, Binance API, Binance Cryptocurrency Exchange, Coinbase API, Ethereum, Amazon RDS, Express.js, Responsiveness, ChatGPT API, OpenAI API, Server-side, Natural Language Processing (NLP), Data Processing, Google Cloud Functions, TradingView, Large Language Models (LLMs), AI Chatbots, Chrome Extensions, Prompt Engineering, Project Scoping, System Design, Solution Architecture, Team Mentoring, Responsive UI, AI Agents, Agentic Frameworks, Agentic AI, API Applications, CSRF Protection, Authentication, Redux, Generative Artificial Intelligence (GenAI), RESTFul APIs, Crypto, Communication, High Code Quality, Troubleshooting & Issue Resolution, Scripting, Financials, Pub/Sub, Testing, AI Copilots, AI Agent Orchestration, AI Architecture, AI Automation, Gemini, Gemini API, Twilio, Cloud, Data Analysis, Agentic Development, ETL Pipelines, Caching, Query Optimization, Load Balancers, Proxy Servers, Latency & Throughput Analysis, TimescaleDB, Technical Architecture, Compliance, AI Tools, Infrastructure, Hosting, Cursor AI, Real-time Systems, AI Prompts, Event-driven Systems, Data Modeling, Pydantic, Dagster, Web3, Docker, Data Extraction, LLM Integration, Front-end, LLM Agents, System Architecture, Amazon API Gateway
Back-end Python Engineer
2024 - 2024
Westmark Retail Ltd
- Led the architecture and development of a scalable SaaS platform using Python and FastAPI. While building the system, I mentored junior engineers, guiding them through best practices in API design, cloud deployment, and database optimization.
- Provided hands-on mentorship in front-end development with Next.js, ensuring seamless integration. I emphasized clean code, maintainability, and performance, shaping a team that could independently design and scale complex systems.
- Taught the team how to implement efficient asynchronous task execution. By introducing scalable patterns on AWS and Google Cloud Platform (GCP), I helped them understand cloud infrastructure, improving deployment strategies and system reliability.
Technologies: Python, Django, FastAPI, SaaS, Queue Management, RabbitMQ, ZeroMQ, Amazon Web Services (AWS), Google Cloud Platform (GCP), Minimum Viable Product (MVP), Supabase, Amazon RDS, Event-driven Architecture, Server-side, Firebase, Google Cloud Functions, Project Scoping, System Design, Solution Architecture, Team Mentoring, Responsive UI, AI Agents, Agentic Frameworks, Agentic AI, API Applications, CSRF Protection, Team Leadership, Authentication, OAuth, GitHub Actions, Redux, Stripe Payments, Jest, Generative Artificial Intelligence (GenAI), RESTFul APIs, Communication, Business Logic, High Code Quality, Mentorship, Troubleshooting & Issue Resolution, Distributed Systems, Scripting, Security, Pub/Sub, AI Design, CRM, Testing, CRM APIs, Datadog, Cloud, Billing Systems, Caching, Query Optimization, Load Balancers, Marketplaces, Stripe, Technical Architecture, AI Tools, Infrastructure, Hosting, Real-time Processing, Scalable Architecture, Pydantic, System Architecture, Payment Processing, Payment Gateways, Shopify, Payments, Shopify API
Senior Data Engineer
2024 - 2024
Scale Medicine Inc.
- Scraped terabytes of data using Python and Rust, automating large-scale collection from diverse sources. Python handled the data retrieval and processing, while Rust ensured true concurrency, maximizing speed and efficiency.
- Used Rust-powered parsers that cleaned, normalized, and structured raw data in parallel, handling formats like JSON, CSV, and XML. This approach allowed efficient, high-performance transformation of unstructured data into a reliable format.
- Structured the processed data for machine learning training, using PostgreSQL and MongoDB for optimized storage. This enabled seamless AI model integration, improving predictions and driving actionable insights.
Technologies: Python, Rust, MongoDB, Google Bucket, JSON, Amazon RDS, ChatGPT API, OpenAI API, Server-side, Natural Language Processing (NLP), Data Processing, Google Cloud Functions, Playwright, Chrome Extensions, Large-scale Web Crawlers, Memory Management, Project Scoping, System Design, Solution Architecture, Team Mentoring, Responsive UI, Agentic Frameworks, Large-scale Distributed Systems, API Applications, Authentication, Spark, RESTFul APIs, Communication, High Code Quality, Troubleshooting & Issue Resolution, Distributed Systems, Large-scale Projects, Scripting, TLS Fingerprinting, Beautiful Soup 4, lxml, Pub/Sub, Amazon Kinesis, Amazon Kinesis Data Firehose, Testing, Datadog, Cloud, Data Analysis, Agentic Development, Apache Spark, ETL Pipelines, Caching, Query Optimization, Proxy Servers, Latency & Throughput Analysis, TimescaleDB, Technical Architecture, Compliance, AI Tools, Hosting, Real-time Processing, Scalable Architecture, Data Modeling, Pydantic, Docker, Data Extraction
Senior Web Engineer
2024 - 2024
Caravan Tours Inc.
- Built high-efficiency ETL pipelines (Python/Go/Spark) handling structured/unstructured data at scale. Slashed latency via workflow optimizations, enabling real-time insights.
- Architected systems using FastAPI, Go concurrency, and Kafka to handle 10,000+ events per second. Used Redis and RabbitMQ to eliminate bottlenecks, reducing DB load by 60%. Built for resilience, ensuring smooth performance even under spike loads.
- Transformed data into growth drivers and migrated to DynamoDB, reducing query costs by 55%. Leveraged OpenAI to auto-tag customer feedback, seamlessly integrating it into roadmaps.
- Built compliant pipelines that passed rigorous fintech audits. Data that solves, never complicates.
Technologies: Web Scraping, JSON, Website Data Scraping, Python, MongoDB, ETL, Claude, OpenAI, Minimum Viable Product (MVP), Coinbase API, Amazon RDS, ChatGPT API, OpenAI API, Large Language Models (LLMs), Server-side, Natural Language Processing (NLP), Data Processing, AI Chatbots, Playwright, Chrome Extensions, Prompt Engineering, Project Scoping, System Design, Solution Architecture, Team Mentoring, Responsive UI, Agentic Frameworks, API Applications, Authentication, RESTFul APIs, Communication, High Code Quality, Troubleshooting & Issue Resolution, Distributed Systems, Large-scale Projects, Scripting, TLS Fingerprinting, Security, Beautiful Soup 4, lxml, Pub/Sub, IT Security, Testing, Cloud, Data Analysis, Apache Spark, ETL Pipelines, Caching, Query Optimization, Load Balancers, Proxy Servers, Latency & Throughput Analysis, Technical Architecture, Hosting, Real-time Processing, Pydantic, Docker, Data Extraction, System Architecture
Principal Engineer
2022 - 2024
Stork
- Led a team of five engineers in the evaluation and re-architecture of the entire infrastructure, significantly increasing system speed and efficiency while reducing operational costs.
- Worked on the monolithic design on AWS, using Rust for efficient high-speed signing; Python, FastAPI, and Redis for rapid result processing; and Docker for containerization, establishing Stork as a premier ultra-low latency reference price provider.
- Created a tailored weighted mark price oracle for Vertex.
- Led the engineering team focusing on Agile methodology practices. Successfully implemented strategies that improved project agility and team dynamics.
- Piloted large-scale projects, including Web3 and blockchain initiatives, propelling company growth and market success.
- Created a tailored spot oracle for OKX and an integration infrastructure for their custom API.
Technologies: Amazon Web Services (AWS), API Architecture, Amazon DynamoDB, FastAPI, Redis, Rust, Low Latency, RabbitMQ, Algorithms, High-load, Relational Databases, Python, Docker, Kubernetes, GitHub, CI/CD Pipelines, WebSockets, Code Review, Back-end, APIs, Asynchronous Programming, Unit Testing, Code Refactoring, Database Modeling, SQL, Apache Kafka, Back-end Development, Containerization, Database Design, Database Optimization, Leadership, Performance Optimization, RESTful Services, Scalability, Technical Leadership, DevOps, Architecture, MongoDB, API Integration, Finance, Finance APIs, Trading Systems, Agile, REST APIs, Back-end Architecture, Management, Delivery Management, Engineering Management, Software Architecture, Web Development, Web Applications, Web Dashboards, JSON, Pytest, Abstract Syntax Trees (AST), Databricks, AI Integration, Data Science, Data Architecture, Cloud Native, Cloud Deployment, AWS Lambda, Message Queues, Serverless, API Design, API/Services Architecture, Integration, API Gateways, Microservices Architecture, Auth0, SQLAlchemy, Data Pipelines, Blockchain, Cryptocurrency, Python Asyncio, Socket.IO, Scalable Web Services, Databases, Bloomberg API, Matplotlib, Pandas, Financial Data, Statistics, Project Planning, Requirements Analysis, Project Timelines, Amazon S3 (AWS S3), OpenAI, ChatGPT, REST, Data Analytics, Cloud Infrastructure, Startups, C#, Bloomberg, Financial Markets, Data Engineering, API Databases, Interactive Brokers API, Real-time Data, Trading Bots, Python API, Stock Market, Stock Trading, Tickers, Profit & Loss (P&L), Stock Exchange, Trade Finance, API Development, Git, Fintech, Payment APIs, ZeroMQ, Queue Management, Redis Cache, Smart Contracts, ECS, Futures & Options, Multithreading, Python 3, Asyncio, Multiprocessing, Cryptocurrency Trading, Minimum Viable Product (MVP), Cryptocurrency Exchanges, Binance API, Binance Cryptocurrency Exchange, Coinbase API, Ethereum, Amazon RDS, Event-driven Architecture, AWS CloudFormation, Responsiveness, Server-side, Amazon CloudWatch, Terraform, Proof of Concept (POC), Firebase, Data Processing, Backtesting, High-frequency Trading (HFT), Memory Management, Project Scoping, System Design, Solution Architecture, Team Mentoring, Responsive UI, Helm, Large-scale Distributed Systems, Multimedia, API Applications, Team Leadership, Authentication, GitHub Actions, Spark, RESTFul APIs, Crypto, Communication, Business Logic, High Code Quality, Mentorship, Strategy, Troubleshooting & Issue Resolution, Distributed Systems, Large-scale Projects, Scripting, Financials, Security, Infrastructure as Code (IaC), Pub/Sub, AWS Amplify, IT Security, Testing, Datadog, Product Management, Cloud, Data Analysis, Apache Spark, ETL Pipelines, Caching, Query Optimization, Load Balancers, Latency & Throughput Analysis, TimescaleDB, Technical Architecture, Compliance, Infrastructure, Hosting, Real-time Systems, Event-driven Systems, Real-time Processing, Scalable Architecture, Data Modeling, Pydantic, Web3, System Architecture, Amazon API Gateway
Senior Software and Trading Engineer
2022 - 2023
21.co
- Co-led a team of over eight engineers, co-designed and co-built a full-stack, microservices-based order management system (OMS) using Python, FastAPI, RabbitMQ, and Redis, containerized with Docker, orchestrated with Kubernetes, and deployed on AWS.
- Worked on a system vital for managing manual and automatic trades, enhancing the scalability and reliability of trading operations for the world's largest crypto ETF.
- Developed a high-frequency trading (HFT) low latency system with a monolithic design using Rust and C++, significantly enhancing the trading capabilities and performance of the world's largest crypto exchange-traded funds (ETF).
- Led the design and implementation of an identity access management (IAM) system for the OMS, ensuring secure and efficient trader operations in a blockchain-centric environment.
- Partnered with world-class traders from Bank of America, Deutsche Bank, and UniCredit to translate complex trading strategies into effective, reliable algorithms.
- Managed comprehensive testing and maintenance protocols for trading systems, focusing on speed optimization, bug resolution, and edge case identification to guarantee robustness in live trading environments.
Technologies: Amazon Web Services (AWS), API Architecture, Microservices, Docker, Kubernetes, Amazon EKS, Python, FastAPI, RabbitMQ, Redis, Go, Rust, Low Latency, Trading, Algorithms, NoSQL, C++, Next.js, TypeScript, GitHub, CI/CD Pipelines, Code Review, Algorithmic Trading, Interviewing, WebSockets, High-load, Back-end, APIs, Asynchronous Programming, Unit Testing, Code Refactoring, JavaScript, Database Modeling, UI Design, SQL, Apache Kafka, Back-end Development, Containerization, Database Design, Database Optimization, Leadership, Performance Optimization, RESTful Services, Scalability, Technical Leadership, DevOps, Full-stack, Software Design, Architecture, MongoDB, API Integration, Finance, Finance APIs, Trading Systems, React, Agile, Full-stack Development, REST APIs, Back-end Architecture, Websites, CSS, HTML, Node.js, Management, Delivery Management, Engineering Management, Software Architecture, Automation, UI Automation, Workflow Automation & System Integration, Selenium, Web Development, Puppeteer, Generative Pre-trained Transformers (GPT), Web Applications, OpenAI GPT-4 API, Web Dashboards, Web Scraping, Data Scraping, Website Data Scraping, JSON, Pytest, Abstract Syntax Trees (AST), Databricks, Data Science, User Experience (UX), User Interface (UI), Data Architecture, Front-end Development, Cloud Native, Artificial Intelligence (AI), Cloud Deployment, AWS Lambda, Message Queues, Serverless, Amazon Simple Queue Service (SQS), API Design, API/Services Architecture, Integration, API Gateways, Microservices Architecture, Angular, Okta, SQLAlchemy, Graphical User Interface (GUI), Data Pipelines, Blockchain, Cryptocurrency, Python Asyncio, Socket.IO, Databases, Bloomberg API, Matplotlib, Pandas, Financial Data, Statistics, Project Planning, Requirements Analysis, Project Timelines, Amazon S3 (AWS S3), AI Website Builders, Web Crawlers, OpenAI, ChatGPT, REST, Data Analytics, Cloud Infrastructure, NestJS, Bloomberg, Financial Markets, Data Engineering, API Databases, HTML5, PDF Scraping, Interactive Brokers API, Real-time Data, Time Series, Time Series Analysis, Trading Bots, Python API, Stock Market, Stock Trading, Tickers, Hedge Funds, Options Trading, Profit & Loss (P&L), Stock Exchange, Trade Finance, API Development, Git, Fraud Prevention, Fraud Detection, Fintech, Payment APIs, ZeroMQ, Queue Management, Redis Cache, Smart Contracts, Solana, DOM, ECS, Futures & Options, Multithreading, Python 3, Asyncio, Multiprocessing, Cryptocurrency Trading, Minimum Viable Product (MVP), Supabase, Cryptocurrency Exchanges, Binance API, Binance Cryptocurrency Exchange, Ethereum, Amazon RDS, Event-driven Architecture, AWS CloudFormation, Responsiveness, Server-side, Amazon CloudWatch, Terraform, Proof of Concept (POC), Data Processing, TradingView, Prisma, Backtesting, High-frequency Trading (HFT), Memory Management, MetaTrader, Project Scoping, System Design, Solution Architecture, Team Mentoring, Responsive UI, Helm, Large-scale Distributed Systems, Multimedia, API Applications, Cloudflare, Team Leadership, Authentication, GitHub Actions, Apache Iceberg, Spark, RESTFul APIs, Crypto, call sheet, Communication, Business Logic, High Code Quality, Mentorship, Strategy, Troubleshooting & Issue Resolution, Distributed Systems, Large-scale Projects, Scripting, Burp Suite, Financials, Security, Infrastructure as Code (IaC), Pub/Sub, AWS Amplify, IT Security, Testing, Datadog, Product Management, Cloud, Data Analysis, Apache Spark, ETL Pipelines, Caching, Query Optimization, Load Balancers, Latency & Throughput Analysis, TimescaleDB, Technical Architecture, Multi-tenant SaaS, Compliance, Infrastructure, Hosting, Real-time Systems, Event-driven Systems, Real-time Processing, Scalable Architecture, Data Modeling, Pydantic, Financial Services, Wealth Management, Multitenancy, Front-end, Grafana, System Architecture, Amazon API Gateway
Senior Software Engineer
2022 - 2022
Embed
- Redesigned the architecture and infrastructure, helping the team deal with the increased volume of traffic that their previous architecture could not handle.
- Worked on the redesign that saved operating costs and the new architecture that simplified the complicated schema and helped speed up maintenance and new feature development.
- Assisted the business in shaping many of their ideas into effective products.
- Consulted on various security matters and erased previous technical debt.
Technologies: API Architecture, Python, FastAPI, Flask, GraphQL, Node.js, TypeScript, Microservices, Back-end, APIs, Code Refactoring, Database Modeling, UI Design, SQL, Back-end Development, Containerization, Database Design, Database Optimization, Performance Optimization, RESTful Services, Scalability, Full-stack, Architecture, MongoDB, Agile, REST APIs, Back-end Architecture, Google Cloud, Software Architecture, Web Development, Web Applications, JSON, Data Architecture, Vue, Front-end Development, Cloud Native, Cloud Deployment, Tailwind CSS, Message Queues, API Design, API/Services Architecture, Email Automation, Microservices Architecture, Auth0, SQLAlchemy, Data Pipelines, Blockchain, Cryptocurrency, Python Asyncio, Socket.IO, Databases, Pandas, Project Planning, Requirements Analysis, Project Timelines, REST, Cloud Infrastructure, Startups, API Databases, HTML5, Google Cloud Platform (GCP), Python API, API Development, X (formerly Twitter) API, Git, Express.js, SaaS, DOM, Python 3, Asyncio, Multiprocessing, Minimum Viable Product (MVP), Social Media APIs, Search Engine Optimization (SEO), Responsiveness, Server-side, Airtable, Proof of Concept (POC), Google Cloud Functions, Chrome Extensions, eCommerce, Project Scoping, System Design, Solution Architecture, Team Mentoring, Responsive UI, API Applications, Cloudflare, Authentication, Redux, Stripe Payments, RESTFul APIs, High Code Quality, Troubleshooting & Issue Resolution, Scripting, CRM, IT Security, Testing, Platforms, Microsoft Power Automate, Microsoft Power BI, Microsoft 365, SharePoint, CRM APIs, LinkedIn API, Railway, SendGrid, Cloud, Marketplaces, Stripe, Technical Architecture, System Architecture, Payment Processing, Payment Gateways
Principal Engineer
2018 - 2022
ClearViewAI
- Developed pipelines, databases, and APIs, primarily built in Python, certifying that they were robust, efficient, and fast enough to handle data on the scale of hundreds of terabytes. Used Redis, MongoDB, RabbitMQ, PostgreSQL, and Spark.
- Developed advanced web crawlers by leveraging Python, JavaScript, and Node.js in combination with Selenium, BeautifulSoup, and a custom Chromium-based browser. Custom anti-evasion techniques and traffic analysis further refined the process.
- Developed software verification plans and quality assurance procedures and troubleshot, debugged, and upgraded existing systems.
- Led a team of more than 12 engineers focusing on Agile methodology practices and successfully implemented strategies that improved project agility and team dynamics.
Technologies: Amazon Web Services (AWS), ETL, NoSQL, Redis, PostgreSQL, Python, Selenium, Java, API Architecture, C++, Flask, JavaScript, Docker, Kubernetes, GitLab, Machine Learning, Code Review, Interviewing, React, Bots, Scraping, Back-end, APIs, Asynchronous Programming, Unit Testing, Code Refactoring, Database Modeling, UI Design, SQL, RabbitMQ, Back-end Development, Containerization, Database Design, Database Optimization, Leadership, Performance Optimization, RESTful Services, Scalability, Technical Leadership, DevOps, Full-stack, Software Design, Architecture, MongoDB, Agile, Full-stack Development, REST APIs, WebRTC, Back-end Architecture, Websites, CSS, HTML, React Native, Management, Delivery Management, Engineering Management, Software Architecture, Automation, UI Automation, Workflow Automation & System Integration, Web Development, Algorithms, Beautiful Soup, Puppeteer, Web Applications, Web Dashboards, Web Scraping, Data Scraping, F5 Networks, Website Data Scraping, JSON, Pytest, AI Integration, Data Science, User Experience (UX), User Interface (UI), Data Architecture, Front-end Development, Cloud Native, Artificial Intelligence (AI), Cloud Deployment, Message Queues, API Design, API/Services Architecture, Microservices Architecture, MySQL, SQLAlchemy, Graphical User Interface (GUI), Data Pipelines, Python Asyncio, Celery, Scalable Web Services, Databases, Pandas, Project Planning, Requirements Analysis, Project Timelines, Amazon S3 (AWS S3), Web Crawlers, Scrapy, REST, Data Analytics, Cloud Infrastructure, Startups, C#, Data Engineering, API Databases, HTML5, PDF Scraping, Real-time Data, Google Cloud Platform (GCP), Apache Airflow, Python API, API Development, X (formerly Twitter) API, Git, Mobile Development, ZeroMQ, Queue Management, Redis Cache, DOM, ECS, Multithreading, Python 3, Asyncio, Multiprocessing, Minimum Viable Product (MVP), Social Media APIs, Search Engine Optimization (SEO), Responsiveness, Server-side, Terraform, Proof of Concept (POC), Maps, Data Processing, Google Cloud Functions, Playwright, Chrome Extensions, Large-scale Web Crawlers, Memory Management, Project Scoping, System Design, Solution Architecture, Team Mentoring, Responsive UI, Large-scale Distributed Systems, AI Model Training, API Applications, Cloudflare, CSRF Protection, Team Leadership, Authentication, GitHub Actions, RESTFul APIs, High Code Quality, Mentorship, Strategy, Troubleshooting & Issue Resolution, Distributed Systems, Large-scale Projects, Scripting, Burp Suite, Beautiful Soup 4, lxml, Pub/Sub, IT Security, Testing, AI Architecture, AI Automation, Datadog, LinkedIn API, Product Management, Cloud, Apache Spark, ETL Pipelines, Caching, Query Optimization, Load Balancers, Proxy Servers, Latency & Throughput Analysis, Technical Architecture, Compliance, Infrastructure, Hosting, Real-time Systems, Scalable Architecture, Pydantic, LinkedIn, Data Extraction, Multitenancy, System Architecture
Senior Software Engineer
2014 - 2017
Artiusio
- Developed and worked on enterprise software for medium and large-size corporations.
- Configured and deployed enterprise software for various hotels and businesses. Created a customer relationship management (CRM) and a booking solution consisting of a desktop and a web application.
- Monitored and updated client websites while playing a key role in expanding the company's and client's operations.
Technologies: Django, Python, Amazon Web Services (AWS), Web Development, PostgreSQL, WordPress, Back-end, APIs, Code Refactoring, UI Design, SQL, Back-end Development, Containerization, RESTful Services, Full-stack, Software Design, Full-stack Development, REST APIs, Back-end Architecture, Websites, CSS, HTML, Software Architecture, Web Applications, JSON, User Experience (UX), User Interface (UI), Front-end Development, Cloud Native, Message Queues, API Design, API/Services Architecture, MySQL, Booking, SQLAlchemy, Graphical User Interface (GUI), Content Management Systems (CMS), Databases, Pandas, R, Requirements Analysis, Project Timelines, Mailchimp, REST, C#, API Databases, HTML5, Google Cloud Platform (GCP), Python API, API Development, Git, Mobile Development, SaaS, DOM, Python 3, Minimum Viable Product (MVP), Social Media APIs, Search Engine Optimization (SEO), Responsiveness, Server-side, Proof of Concept (POC), eCommerce, Responsive UI, API Applications, Authentication, Stripe Payments, RESTFul APIs, High Code Quality, Scripting, TLS Fingerprinting, CRM, IT Security, Testing, Microsoft Power Automate, Microsoft Power BI, Microsoft 365, SharePoint, CRM APIs, Billing Systems, Technical Architecture, Shopify
Experience
Facial Recognition
http://clearview.aiI joined as one of the inaugural engineers at a budding startup before it even formalized its corporate entity. I dedicated countless hours to its development, and my commitment paid off as we ascended to become a leader in our industry, earning accolades, including mentions in The New York Times and being listed among the TIME100 Most Influential Companies of 2021.
Trading System
I was initially hired to develop an order management system (OMS) for manual trading. I spearheaded the project's expansion to create a comprehensive OMS that supports algorithmic and high-frequency trading and delivers real-time data. This endeavor was enriched through collaboration with world-class quants from leading financial institutions, including Bank of America, Deutsche Bank, and UniCredit, significantly enhancing the system's functionality and impact.
Stork
I optimized an overly complex and costly price oracle provider by reducing operational costs by more than half and streamlining its design with essential tools. This significantly boosted its speed, enabling the project to withstand the challenges of the crypto winter.
Skills
Libraries/APIs
React, Node.js, REST APIs, Beautiful Soup, Puppeteer, SQLAlchemy, Python Asyncio, Socket.IO, Python API, API Development, Asyncio, Binance API, Coinbase API, Playwright, Beautiful Soup 4, Claude API, ZeroMQ, Vue, Bloomberg API, Matplotlib, Pandas, Interactive Brokers API, X (formerly Twitter) API, Social Media APIs, OpenAI API, LinkedIn API, Stripe, Pydantic, Shopify API, WebRTC, AWS Amplify
Tools
Pytest, ChatGPT, Git, Claude, Claude Code, RabbitMQ, Amazon EKS, GitHub, GitLab, Amazon Simple Queue Service (SQS), Auth0, Celery, Mailchimp, Bloomberg, AWS CloudFormation, Amazon CloudWatch, Terraform, Prisma, Amazon Kinesis Data Firehose, Claude Agent SDK, SendGrid, AI Prompts, Grafana, Slack, Apache Airflow, Helm, Vitest, Apache Iceberg, TLS Fingerprinting, Microsoft Power BI
Languages
Python, C++, TypeScript, Go, JavaScript, CSS, HTML, SQL, C#, HTML5, Python 3, Rust, Java, GraphQL, R, C
Frameworks
Django, Next.js, Selenium, Scrapy, Flask, gRPC, React Native, Tailwind CSS, NestJS, Express.js, Agentic Frameworks, Redux, Jest, Spark, Apache Spark, Angular, Eclipse Gemini
Paradigms
Microservices, ETL, Asynchronous Programming, Unit Testing, Database Design, Agile, Back-end Architecture, Management, Automation, API/Services Architecture, Microservices Architecture, Requirements Analysis, REST, Hosting, Real-time Systems, API Architecture, Code Refactoring, UI Design, DevOps, Mobile Development, Event-driven Architecture, Search Engine Optimization (SEO), CSRF Protection, Testing, Model Context Protocol (MCP), Low-code Development
Platforms
Docker, Amazon Web Services (AWS), Cloud Native, AWS Lambda, Blockchain, Google Cloud Platform (GCP), Shopify, Linux, Windows, Kubernetes, WordPress, Apache Kafka, Ethereum, Firebase, Azure, Burp Suite, Microsoft Power Automate, Twilio, Vercel, Databricks, MetaTrader, AWS Nitro System, SharePoint, Replit
Storage
PostgreSQL, Google Cloud, JSON, Cloud Deployment, MySQL, Data Pipelines, Databases, Amazon S3 (AWS S3), API Databases, MongoDB, Amazon DynamoDB, Redis, Relational Databases, NoSQL, Database Modeling, Redis Cache, Datadog, Google Bucket
Industry Expertise
Binance Cryptocurrency Exchange, Trading Systems, High-frequency Trading (HFT)
Other
FastAPI, WebSockets, Web Development, Bots, Full-stack, Scraping, Back-end, APIs, Back-end Development, Containerization, Leadership, Performance Optimization, RESTful Services, Scalability, Technical Leadership, Architecture, API Integration, Full-stack Development, Delivery Management, Engineering Management, Software Architecture, UI Automation, Workflow Automation & System Integration, Web Applications, Web Scraping, Data Scraping, F5 Networks, Website Data Scraping, Data Architecture, Artificial Intelligence (AI), Message Queues, Serverless, API Design, Integration, API Gateways, Cryptocurrency, Scalable Web Services, Project Planning, Project Timelines, Web Crawlers, Data Analytics, Startups, Financial Markets, Data Engineering, Real-time Data, Trading Bots, DOM, Multithreading, Multiprocessing, Cryptocurrency Trading, Minimum Viable Product (MVP), Cryptocurrency Exchanges, Amazon RDS, Large Language Models (LLMs), Server-side, Proof of Concept (POC), Data Processing, Google Cloud Functions, Large-scale Web Crawlers, Prompt Engineering, Project Scoping, System Design, Solution Architecture, Responsive UI, Agentic AI, API Applications, Authentication, GitHub Actions, Generative Artificial Intelligence (GenAI), RESTFul APIs, Communication, High Code Quality, Troubleshooting & Issue Resolution, Distributed Systems, Large-scale Projects, Scripting, Pub/Sub, AI Design, CRM, AI Agent Orchestration, AI Architecture, AI Automation, CRM APIs, Product Management, Cloud, ETL Pipelines, Caching, Query Optimization, Load Balancers, Proxy Servers, Latency & Throughput Analysis, Technical Architecture, Compliance, Infrastructure, Event-driven Systems, Real-time Processing, Scalable Architecture, Front-end, System Architecture, Low Latency, Trading, Algorithms, High-load, CI/CD Pipelines, Code Review, Algorithmic Trading, Interviewing, Database Optimization, Software Design, Finance, Finance APIs, Websites, Generative Pre-trained Transformers (GPT), OpenAI GPT-4 API, Web Dashboards, Abstract Syntax Trees (AST), AI Integration, Data Science, User Interface (UI), Front-end Development, Okta, Booking, Graphical User Interface (GUI), Content Management Systems (CMS), Financial Data, OpenAI, Cloud Infrastructure, PDF Scraping, Time Series, Time Series Analysis, Stock Market, Stock Trading, Tickers, Hedge Funds, Options Trading, Profit & Loss (P&L), Stock Exchange, Trade Finance, Fintech, Payment APIs, Queue Management, SaaS, Smart Contracts, Solana, ECS, Futures & Options, Supabase, Responsiveness, ChatGPT API, Natural Language Processing (NLP), Maps, TradingView, AI Chatbots, Chrome Extensions, eCommerce, Memory Management, Team Mentoring, AI Agents, Large-scale Distributed Systems, Multimedia, AI Model Training, Vite, Cloudflare, Team Leadership, OAuth, AI Programming, Large Language Model Operations (LLMOps), Stripe Payments, Retrieval-augmented Generation (RAG), Crypto, Business Logic, Mentorship, Strategy, Financials, Security, lxml, Infrastructure as Code (IaC), Amazon Kinesis, Agentic RAG Systems, IT Security, Platforms, AI Copilots, Microsoft 365, Dashboards, Gemini, Gemini API, Railway, Data Analysis, Agentic Development, Billing Systems, TimescaleDB, Marketplaces, Multi-tenant SaaS, AI Tools, Cursor AI, Data Modeling, Web3, Base44, Financial Services, Wealth Management, AI-assisted Development, Anthropic, Data Extraction, LLM Integration, Multitenancy, LLM Agents, Agentic AI Systems, Agentic Workflow Design, Metrics, Amazon API Gateway, Payment Processing, Payment Gateways, Vibe Coding, Payments, Chatbots, Machine Learning, Low-latency Software, User Experience (UX), Email Automation, Statistics, AI Website Builders, Fraud Prevention, Fraud Detection, Airtable, Backtesting, Encryption, Machine Learning Operations (MLOps), Prisma Orm, call sheet, LangChain, Dagster, LinkedIn
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