I develop full-stack solutions mainly in Python: Django and FastAPI, PostgreSQL, Docker. Besides web development I have built ML and computer-vision solutions — detection on a video stream (YOLO), image classifiers, geoanalytics on open data. I try to release open source code: projects with tagged releases and packages on PyPI, typed and covered with tests in CI.
Libraries in the DrobyshevDev organisation: typed, tested in CI, published under tagged releases.
Reinforcement learning for operational decisions: pricing, inventory, energy, queues, supply chains. Every applied environment ships with its classical operations-research baseline. 31 algorithms, 22 environments, 12 gradient-free optimizers, 400 tests, 86% coverage, CI on Python 3.9–3.12.
A proving ground for operational decisions: agents are scored against the tuned classical method and the exact optimum, with a confidence interval. Exact solutions through dynamic programming.
A framework for ML, analytics and LLM agents on Django's philosophy: you declare datasets, models and evaluations, the framework runs, versions and records them.
glia — a glass-box library for LLM agents with a zero-dependency core. praxis — a legal assistant for Russian law with verified citations: hybrid retrieval, an NLI citation verifier, GraphRAG. lemma — a free course on ML, DL and RL, 27 modules, notebooks checked in CI.
Portal for Izvestia Vuzov. Geodesy and Aerophotography with issue archive management. Designed the database and the server side, built the whole portal, and deployed it on a university server. Admin panel for the editorial team, with a rule that only one issue can be current at a time. Corporate SSO login, role-based access, common web vulnerabilities closed (CSRF, XSS, SQL injection). Metadata export to XML for bibliographic databases, tests at several levels.
An ecosystem of five modules on a shared core: fitness, library, messenger, social network, dating. JWT auth, a realtime messenger over WebSocket, media in S3, subscriptions and referrals, CI and deployment.
A content approval service: a state machine, an audit log on every transition, a transactional outbox, Idempotency-Key support, per-workspace multi-tenant isolation, secrets redacted in logs. 39 tests.
A Streamlit app that finds events in the frame in real time: YOLO for detection, InsightFace for face recognition. Works with a webcam and video files, produces CSV reports and statistics.
A pipeline that suggests where to open a fitness centre: OpenStreetMap data, an H3 hex grid, an attractiveness model in scikit-learn, interactive maps. Image classifier: three architectures compared, best F1 0.88, inference served through FastAPI.
Turns Excel files into database tables: authentication, configurable templates, validation by type and rules, and a web interface for edits.