Jan Komínek.
Senior Frontend / Fullstack Engineer — 4+ yrs — Prague, CZ
I build complex web applications from scratch — fast. Vue, React, TypeScript, deep backend experience in Node, PostgreSQL, Redis, Docker. I've led an EV charging platform with its own payment system and built zero-trust data-lineage tooling.
Where I've been shipping.
Ordered newest to oldest. Concurrent roles noted. Current engagements marked in green.
Senior Frontend Engineer
Building DeepTrace — a data provenance and integrity platform for Earth Observation data. Sole frontend engineer.
- Architected interactive D3.js lineage visualization for complex supply-chain graphs
- Implemented client-side hash-chain verification following zero-trust architecture
- Integrated AWS Cognito (OAuth) for secure client-side-only authentication
Fullstack Engineer
Developing and maintaining a fullstack data platform focused on scalability, search performance, and reliable infrastructure.
- End-to-end feature delivery — Nuxt on the frontend, AdonisJS on the backend
- Elasticsearch-powered search across large datasets
- CI/CD + DigitalOcean Linux infrastructure for production deployments
Lecturer & Organizer
Solo-taught "Intro and Basics of 2D Graphics" for 50 students (8th & 9th grade). Consistently top-rated teacher across all four years (2022–2025).
Fullstack Engineer
Led full-stack development of a web platform managing electric vehicle chargers — from infrastructure setup to payment integration.
- Built public-facing charging app with online payment and remote charger authorization
- Designed + deployed infrastructure from scratch on IaaS — Docker Swarm microservices
- Developed auto-updating firmware delivery system with the hardware team
Fullstack Developer
Fullstack developer on a cross-functional Agile team building an internal customer portal. Collaborated with 6 devs and 1 PM in Scrum.
Frontend Developer
Frontend on a cybersecurity e-learning platform. Introduced improved dev processes for code quality and delivery flow.
IT Support
Hands-on IT support: Windows workstations, network printers, IoT devices, local network infrastructure, and safety training.
Formal training.
Applied Computer Science
B.S. focused on bridging software engineering and business strategy. System design, machine learning, cloud computing, data analytics alongside business fundamentals.
- Leading backend + DevOps architecture for Diář FISáka — team of 4 developers on Hetzner VPS
- Completed certifications: Building AI, Elements of AI, Data Science in Python, Joining Data in SQL
Cyber / Computer Forensics & Counterterrorism
Graduated with full marks in technical subjects. Network security, forensics, system admin. Final thesis: full-stack e-commerce store built from scratch, covering DevOps and CI/CD.
Stack.
Dot marks primary daily tools.