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dderevjanik/README.md

Hi, I’m Daniel

CTO • Software Architect • AI & Platform Engineering • Security

I build and scale software systems across backend, infrastructure and AI domains.

Over the last 10+ years, I worked in biotech, healthcare, fintech and security —mostly focused on system architecture, platform reliability and engineering leadership.

I care less about frameworks and more about:

  • how systems behave under scale and failure
  • how teams actually deliver software in real world
  • how to reduce complexity instead of adding it
  • how AI can be used in production systems (not just demos)

What I do

I work at the intersection of:

  • System Architecture – designing backend and platform systems that scale
  • Infrastructure & Cloud – AWS, Terraform, Docker, CI/CD
  • Security Engineering – observability, SIEM, threat modeling
  • AI Engineering – RAG systems, LLM apps, assistants
  • Platform Engineering – internal tooling, developer experience

Selected work & domains

  • CTO of a biotech DNA analysis platform (pre and post acquisition leadership)
  • Infrastructure redesign using Terraform (cost reduction, simplification)
  • Backend systems in Node.js / TypeScript / Python
  • Audit logging and observability systems
  • AI assistant prototypes for domain specific knowledge systems (RAG based)
  • Reverse engineering and low level system analysis work
  • Developer tooling and internal frameworks

Current focus

  • AI assisted engineering systems (RAG, agents, eval driven design)
  • Platform reliability and observability
  • Security first system design
  • Reducing complexity in distributed systems
  • Building tools that improve developer velocity

Engineering philosophy

“If system cannot be understood, it cannot be maintained.”

I optimize for:

  • clarity over cleverness
  • ownership over abstraction
  • observability over guessing
  • simplicity over scaling complexity

🛠 Tech stack (non exhaustive)

  • Node.js / TypeScript / Python
  • AWS / Terraform / Docker / CI/CD
  • PostgreSQL / Redis / event driven systems
  • Observability and security tooling
  • LLMs / embeddings / vector search / RAG pipelines

Contact

Reach out if you're working on:

  • complex backend systems
  • AI powered products in production
  • infrastructure or platform challenges at scale

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    📄 Generate typescript client from WSDL

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  3. agescx agescx Public

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    TypeScript 80 13