Work

Microservices for a regulated wealth-management stack.

Turning requirements into small Spring Boot services, making the architecture calls for microservices and container orchestration, and holding the line on JUnit coverage in review. Kafka and Kubernetes, real stakeholders, real audit trails.

Core platform engineering, release ownership, and internal tooling on a high-impact telecom system.

Feature work in Java 8–22 against Oracle, plus the release side of it: I led a team-wide migration from Bitbucket to GitHub and moved the Jenkins pipelines across without a break in CI/CD. More recently I have been building an internal AI assistant that answers questions across our documentation, ADRs, Jira tickets and codebase.

Time-series for the whole chain, read off my own node. Signal, not noise.

Mining difficulty, block production and network throughput, plotted from the node I already run for Explore21 rather than from a third-party API. Eleven charts, refreshed every ten minutes. The point is the shape of the data over time, including the noise, rather than a smoothed version of it.

A Bitcoin block explorer I built because the one I wanted did not exist. It has been running on my own infrastructure since.

Address balances, transaction detail, and the network metrics I actually check: difficulty, hash rate, mempool depth. A Spring Boot service talks to Bitcoin Core through ElectrumX and serves it behind Docker, deployed by GitHub Actions. It tracks the chain tip live; the interesting engineering is in staying in sync, not in the lookups.

The first Bulgarian-language Bitcoin newsletter. Fortnightly, for long-term holders rather than traders.

Every two weeks I take the charts from Explore21 and write up what they actually show: where the cycle sits, what moved and why, in about five minutes of reading. It is written in Bulgarian because nobody else was writing this in Bulgarian. No trading advice, no price calls; context and the data behind it.

An ASIC miner controller that runs off whatever the solar array has spare.

Reads real-time solar surplus from Victron / Venus OS over MQTT and steps two miners' power draw to match it, shutting down and resuming on its own. Node backend, Socket.io dashboard. Built to be reliable and easy to extend rather than clever.

Intern to Software Engineer II in two years.

Backend REST APIs across several client projects, then gradually the design side of it: JPQL, native and Criteria queries, architecture discussion, stakeholder-facing work. This is the path that led to RBC.