Alexandre K.

Updated 04/08/2026

Expert TypeScript with 8 years of experience, specializing in modern backend (NestJS, Node.js), advanced frontend (React, Next.js), and secure cloud architectures on AWS.

I work on projects with high technical requirements: high-performance APIs, GraphQL, scalable systems, application security, CI/CD, and cloud optimization.

Since 2025, I have been actively developing solutions integrating AI (LangChain, RAG, local AI agents, business automation), with a strong focus on code robustness, security, and maintainability.

Main stack:

TypeScript, NestJS, Next.js, React, GraphQL, PostgreSQL, MongoDB, AWS, Docker, CI/CD, Linux Security

Common use cases:

- Robust and secure backend APIs

- Scalable SaaS platforms

- AI Integration (RAG, agents, automation)

- Refactoring and hardening of existing architectures

- Performance and cloud cost optimization

I am highly involved, product quality oriented, and accustomed to working with demanding teams (startups, scale-ups, large corporations).