I’ve spent the last 15 years building software — most of it backend: e-commerce platforms, school infrastructure, integrations that had to survive peak traffic. Currently independent, building and running my own products.
Based in Bulgaria, working remotely across the EU timezone.
Things I’ve designed, built, and shipped.
A document approval service for teams that draft documents with AI agents. Software submits documents over an API; people review them, comment on exact passages, and decide. Every version is immutable and every decision is recorded in a tamper-evident audit log.
Web · REST API · Hosted MCP server
Next.js · REST · Scoped API keys · Audit log
A children’s storytelling app for iPhone and iPad. Stories are written on the device with Apple’s on-device language model — no accounts, no data collection, and it works offline.
iPhone · iPad · App Store
SwiftUI · Foundation Models · SwiftData
A Mac app for asking questions across your own documents. Ingestion, search, and answers all run locally on Apple Silicon — nothing is uploaded, no accounts, no cloud.
macOS · Apple Silicon
Swift · MLX · Local models · RAG
An iPhone app that makes screen time something you earn: distracting apps unlock only after real-world habits — walking, meditating, studying — are verified through device motion. All state stays on the device.
iOS · App Store
Swift · Family Controls · Core Motion
An iPad app for mapping discussion in classrooms, coaching, and meetings. Tap who is speaking and watch turn-taking and timing build up in real time, with session exports and replayable participation insights.
iPad · App Store
Swift · SwiftUI · On-device data · Exports
Open-source projects and smaller technical work.
A fully local retrieval-augmented generation pipeline: ingestion, embeddings, a Qdrant vector store, retrieval, and answer generation with Ollama — no external API calls.
A port of MicroGPT from Python to Swift — reimplementing a minimal GPT and its training loop to run as a native CLI.
A Python module for constraining the execution of untrusted Python code, reducing the blast radius of running user-supplied scripts.
A multi-stream AirPlay receiver and recorder for macOS: implements the AirPlay protocol to monitor multiple screens at once, with adaptive grid view, MP4 recording, and PIN protection. GPL-licensed.
A Swift package wrapping Uber’s H3 hexagonal hierarchical geospatial indexing library (v4.4.1), exposing a C library cleanly to Swift.
A minimal implementation for running Qwen image generation locally on a Mac — exploring on-device image models on Apple Silicon.
Selected posts on dev.to.
I’m a software engineer from Colombia, based in Bulgaria. Over the last 15 years I’ve worked as a test designer, IT director, systems manager, and senior backend engineer — in e-commerce, education, and enterprise software, in Colombia, China, and Spain.
These days I build my own products: EQMO, an approval service for document workflows, and a few iOS and Mac apps. The recent apps happen to use on-device machine learning, but the engineering problems are mostly ordinary ones — data modeling, sync, error handling, and shipping to the App Store.
I’m ISC² certified in cybersecurity, so threat modeling and secure design are part of how I build, not an afterthought.
Open to senior engineering roles, consulting, and contract work — remote or hybrid in the EU timezone. If you have a backend that needs building, fixing, or keeping alive, that’s my kind of work.