Burak Kadirbeyoglu

I run a backend architecture practice focused on real-time, event-driven systems. Primary stack: Python + AWS (FastAPI, Lambda, API Gateway, SQS/SNS, EventBridge, DynamoDB) and Node.js/TypeScript (NestJS/Express). I design for clear domain models, idempotent workflows, observability, and low-ops deployments.

Selected Deliverables (tiles):

• Algorithmic Trading Engine (In Progress) — Python + AWS
  Serverless, event-driven backend in Python (FastAPI) on AWS (Lambda, API Gateway, DynamoDB, SQS/SNS, EventBridge). Implements paper-trading loop, signals ingest/validation, portfolio accounting, and a read-optimized metrics API for PnL, win-rate, and drawdowns.
  Emphasis on a clear domain model (Money/Price/Symbol), idempotent workflows, structured logging, and low-ops deployments with Docker + GitHub Actions.
  Tags: Backend Engineer, Solutions Architect, Python, AWS, Lambda, DynamoDB, SQS, Event Sourcing, FastAPI, Pytest

• Serverless IPTV Backend — AWS + Node.js/TypeScript + Python
  Built a serverless backend with API Gateway, Lambda, DynamoDB, and EventBridge; developed a Samsung Tizen TV client and an admin panel on these APIs.
  Core services in TypeScript/Node.js; added Python Lambdas for media metadata checks, manifest validation, and light ops automation.
  Tags: Backend Engineer, Solutions Architect, Node.js, TypeScript, AWS, Lambda, DynamoDB, S3

Earlier Career (Condensed):

• Assistance operations platform (TR) — ASP.NET MVC + C# + EF + SQL Server: case/workflow app; database redesign; reduced average file cycle time by ~33%.

• Medical translation portal (TR) — ASP.NET MVC + C# + EF + SQL Server: request intake, job assignment, billing.

• Media apps — Calm Radio (Android, Android TV, Fire TV, Samsung Tizen), Living Scriptures (Samsung Tizen), TVizio/Prime Asia TV (Samsung Tizen/LG webOS).

Short EU engagements (2–5 months). Backend services, API endpoints, maintenance, and targeted refactors across Node.js/TypeScript, .NET, and Python.

Member of the Proxify network; available for new backend engagements.

Engagements:

• (Austria) Senior backend engineer — Worked on adding new features to in-house automation software to fit different products on a specific body-part scan.
  Tags: Backend Engineer, C#, Microservices, GraphQL, Python, Node.js, PostgreSQL, Docker, Azure DevOps

• (Netherlands) Senior backend engineer — Worked on integration and improvement of repair/revision processes for a company focused on repair, overhaul, refurbishment, and recycling of batteries.
  Tags: Backend Engineer, Node.js, TypeScript, Express, SQL, MariaDB, Docker

• (Belgium) Senior backend engineer — Developed a tool that generates Microsoft PowerPoint presentations, including complex charts (HTML→image), using data fetched from Amazon DynamoDB and written to files passed as arguments.
  Tags: Backend Engineer, Node.js, TypeScript, Puppeteer, PptxGenJS

Freelance engineer with parallel responsibility for product and commercial outcomes. Built and shipped web and mobile products; grew a small software venture to profitability and exit.

Selected work:

• E-pin sales web app (online games) — Designed and developed the product from scratch in 24 days and established the business model. Achieved steady revenue growth, operated profitably, and successfully exited.

• Calm Radio — Developed and launched mobile apps on BlackBerry and Android.