About
About
Andriy Oblivantsev — Senior Software Engineer (Backend / Data / DevOps) based in Santa Cruz de Tenerife, Spain (remote-friendly, CET).
Hands-on engineer with 10+ years building and operating backend, data, and cloud systems. Current focus: knowledge-graph RAG (Neo4j + Qdrant), agent-driven delivery automation, and analytics stacks. Delivered measurable outcomes across ETL platforms, geospatial search, trading backends, and self-hosted AI infrastructure.
Contact: eslider@gmail.com · GitHub · produktor.io · Website
Languages: English B2 · German C1 · Ukrainian C1 · Russian C1
GitHub portfolio (2026-06-24)
| Metric | Value |
|---|---|
| Original repositories | 62 |
| Primary language Go | 21 repos |
| Active in 2026 | 27 repos |
Recent focus: go-second-brain, ai-fabric, go-onlyoffice, go-hocr. See Projects for the full inventory.
Technical Skills
Languages
Go · Python · TypeScript/JavaScript · C#/.NET · PHP · Java · Kotlin · Bash · SQL · HTML · CSS
Cloud & DevOps
AWS (Lambda, ECS, Fargate, S3) · Kubernetes · Docker / Docker Compose · Terraform · GitHub Actions · Linux
Data
PostgreSQL/PostGIS · TimescaleDB · ClickHouse · DuckDB · Neo4j · Qdrant · MySQL · MongoDB · Redis · Elasticsearch · Kafka · Oracle · MinIO
Observability & automation
Grafana · Loki · Promtail · Prometheus · Sentry · n8n
AI & automation
RAG · knowledge graphs · vLLM · Ollama · MCP · agent orchestration · OCR · GDPR-aware data handling
Web & GIS
React · Vue.js · Node.js · Mapbender · WebGIS
Career Highlights
| Period | Role | Focus |
|---|---|---|
| 2025–present | Senior DevOps/Data Engineer (freelance) | Graph RAG, agent automation, ETL |
| 2023–2025 | Senior Data Engineer @ Dyvenia | Data pipelines, quality, BI |
| 2019–2021 | Data Engineer / DevOps @ Immowelt AG | Geospatial backend, AWS migration |
| 2014–2018 | Senior GIS Developer @ WhereGroup | Mapbender product — Digitizer, 1M+ users |
| 2012–2013 | Senior Software Developer @ Keynote SIGOS | Backend, database engineering |
| 2006–present | Founder @ ProProdukt SL / produktor.io | Own-company product engineering |
Education & Certificates
- IT Specialist — Application Development (Fachinformatiker): IHK Nuremberg (2006)
- Software Developer: BPS — Best Practice Strategies (2013)
- IT Specialist Apprenticeship: D2S/Systems (2003–2006)