I'm Dimitar. Four-plus years of JVM-heavy engineering on production systems — telecom at A1 Austria, wealth management for RBC, internal platforms that release on a schedule.
Core features on a high-impact system in Java 8–22 + Oracle. Automated a recurring manual fix that saves 20–30 hours/month. Led a team-wide migration from Bitbucket to GitHub and moved Jenkins pipelines so CI/CD never skipped a beat.
Turned requirements into simple Spring Boot services, made architecture calls for microservices + container orchestration, and kept the bar high with JUnit reviews. Kafka + Kubernetes, real stakeholders, real audit trails.
Backend RESTful APIs across several projects. Grew into system design: JPQL, Native queries, Criteria API, architecture discussions, stakeholder-facing work — the path that got me to RBC.
Address balances, transaction details, technical metrics — the kind of explorer I wanted and couldn’t find. Java/Spring Boot talking to Bitcoin Core via ElectrumX, shipped behind Docker with GitHub Actions.
Adaptive two-miner power controller that matches load to real-time solar surplus via Victron / Venus OS MQTT topics. Node backend, Socket.io dashboard, discrete power stepping, auto shutdown/resume. Built for reliability and easy extension.
Java 8–22 and Spring Boot on production systems. REST APIs, JPA/Hibernate, JPQL, Native and Criteria queries — whichever the problem actually wants.
CI/CD pipelines, Docker, OpenShift, Kubernetes. Release coordination, branch strategy, migration work — I moved a team’s repos from Bitbucket to GitHub without a hiccup.
LLM-powered features, retrieval pipelines, and agent workflows that solve real product problems. Prompt design, evaluation, and guardrails built for production reliability.
Personal projects in Bitcoin Core, BitcoinJ, ElectrumX — plus React/Node fronts when the thing needs a face. I like small, self-hosted tools that last.
Dimitar consistently goes above and beyond to meet deadlines and deliver high-quality code. A natural team player — ready with ideas, supportive of colleagues, and actively seeking out new technologies. His quick learning ability made his integration seamless and has been a real contributor to our projects' success. A pleasure to work alongside.
Read the codebase. Talk to the people closest to the pain. I’d rather be slow for a week than wrong for a month.
Elegant usually beats clever. I turn requirements into the smallest thing that could work — and then test it properly.
CI that’s actually green, pipelines that don’t lie, reviews that teach. The deploy should be the boring part.
Bugs, performance, docs, the 2am page. The work isn’t done when the PR merges — it’s done when the thing earns trust.
I'm Dimitar Zurnov — a software engineer based in Plovdiv, Bulgaria, with 4+ years of experience building production JVM systems. My enterprise experience spans telecom infrastructure at A1 Austria Telekom and wealth management platforms at Royal Bank of Canada.
I hold an MSc in Software Technologies (specialization: Software Architecture) and a BSc in Computer Science, both from the University of Plovdiv. Outside enterprise work, I build Bitcoin tooling — explore21.com is a live blockchain explorer I run independently, and Surplus Miner matches ASIC power draw to real-time solar output. I specialise in Java, Spring Boot, Kafka, Kubernetes, LLM integration, and CI/CD pipelines.
Off-hours: powerlifting, volleyball, reading the source.
Backend-heavy product work. Release & platform engineering. Anything where the JVM meets Bitcoin. Side-project collaborations welcome.