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Kousha RezaeiKR

Kousha Rezaei

Full-Stack Developer

€150/day
Aveiro, PT
3-7 years

Average response time: 1 hour

About Kousha

Hey there I'm Kousha. 22,

based in Portugal, building web apps for over 5 years. I work with Python, Django, DRF, FastAPI, React, Next.js, TypeScript, and I'm deep into infrastructure Docker, Docker Compose, Docker Swarm, Nginx, CI/CD pipelines, GitHub Actions, Apache Airflow, and zero-downtime deployments.
I work with PostgreSQL, Redis, MSSQL, AWS S3, Trino, and Hive daily.
I built a production AI SaaS integrating Anthropic, OpenAI, and Groq APIs with real-time streaming, full auth with 2FA and OAuth, and deployed it all myself. I also hunt bugs on Bugcrowd got paid for finding a critical security flaw in Linktree.
I'm available for remote projects backend, full-stack, DevOps, or security work.
Let's build something.
  • English

    Native or bilingual

  • Persian

    Native or bilingual

  • Portuguese

    Fluent

  • Spanish

    Basic

Remote only
Primarily works remotely

Experience

  • Fintech Company
    Full-Stack Developer
    September 2025 - Today (11 months)
    Portugal
    Develop and maintain full-stack web applications for financial services. Build and integrate backend APIs, frontend interfaces, and infrastructure components. Work with SSO authentication, Trino and Hive for data querying, MSSQL and S3 for storage, and Apache Airflow for pipeline orchestration. Handle DevOps tasks including CI/CD with GitHub Actions, Docker entrypoint configuration, and infrastructure API development. Security-first approach for sensitive financial data.
    Docker Linux Redis infrastructure project manager Python
  • AxionAI
    Founder & Lead Developer
    January 2025 - Today (1 year and 7 months)
    Portugal
    Built a production AI SaaS from scratch. Real-time chat with 4 AI modes using Anthropic, OpenAI, and Groq APIs. JWT auth with 2FA, OAuth, and brute-force protection. Tier-based billing with Redis rate limiting. Conversation export system in 5 formats. Docker Compose deployment with Nginx reverse proxy and zero-downtime bash deploy scripts. Completed 9 security audits with 19 fixes. Stack: Django 5, Next.js 15, PostgreSQL, Redis, Docker, Nginx, AWS S3
    Docker Next.js Django infrastructure project manager S3
  • Arzgate
    Full-Stack Developer
    May 2024 - July 2024 (2 months)
    Portugal
    Built a cryptocurrency platform with real-time market data integration. Applied advanced security practices for data protection and system stability.
    Python Linux Next.js React.js Django

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Education

  • B.Sc.
    University of Aveiro
    2026
    B.Sc.

Skill set

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