About Me
Hi! I’m Kfir Gisman, a Backend Software Engineer and Cybersecurity Researcher focused on building, securing, and scaling production-grade systems.
Recognized as a Top 8 Global FastAPI Expert (2025), I specialize in high-performance Python backends (asyncio, concurrency, memory optimization) and cloud security. My experience spans fast-paced tech startups—including Spectral through its acquisition by Check Point—as well as mission-critical, large-scale public sector initiatives at Treelogic / INCIBE.
Whether it’s optimizing API latency by up to 80%, architecting distributed async pipelines with RabbitMQ and Celery, or building security guardrails for AI/LLM workflows, I focus on turning complex technical requirements into fast, resilient software.
Beyond day-to-day engineering, I actively create technical content on Medium and Dev.to, host the Code with Mate podcast, present at DevSecOps meetups, and contribute to open-source software.
Social & Contact
Core Technical Skills
Backend & Async Architecture
Python (asyncio, concurrency, Pytest) 
FastAPI 
RabbitMQ 
Celery 
Cloud, Infra & DevOps
Docker 
Kubernetes 
Terraform 
AWS 
Nginx 
Security & Identity
Cloud & Shift-Left Security 
HashiCorp Vault 
Keycloak & JWT 
Databases & Caching
PostgreSQL (ACID) 
Redis 
Community & Open Source Impact
- FastAPI Recognition: Recognized as a Top 8 FastAPI Expert for 2025 by FastAPI official docs.
- Open Source Contributions: Actively answering architectural and technical questions in the official FastAPI GitHub Discussions.
- Community Speaking: Delivered a hands-on workshop on Docker security and container vulnerability research at the DevSecOps Spain Community.
- Published Security Research: Authored research on PyPI supply chain attacks published by Check Point Security.
- Podcast Host: Creator and host of Code with Mate, covering Python performance engineering, backend architecture, and community knowledge sharing.
Selected Certifications & Learning
- Kubernetes: Kubernetes for the Absolute Beginners - Hands-on
- Advanced Python: Async Python with Threading & Multiprocessing & Memory Management & Performance
- Databases: Fundamentals of Database Engineering
- Containers: Docker Mastery with Kubernetes
Get in Touch
I’m always open to connecting with fellow engineers, collaborating on open-source Python or DevSecOps projects, or discussing backend architecture and performance optimization.
