NAME
Richard Prillwitz - Lead Backend Engineer, RAG & LLM systems
SYNOPSIS
richard --build [--rag] [--llm] [--on-prem] [--evaluation] <system>
DESCRIPTION
Backend engineer focused on systems that have to hold up under real load. I build RAG and agent pipelines that don't just work in a notebook — they run in production, with monitoring, tests, and predictable behaviour.
SERVICES
- --consulting
- Architecture review, vector store selection, retrieval strategy, evaluation frameworks. Honest opinions on whether RAG is the right tool for your problem.
- --development
- End-to-end implementation. Ingestion pipelines, hybrid search, re-ranking, observability. Self-hosted (Ollama, vLLM) or hosted models - depending on your data constraints.
- --evaluation
- Quantitative measurement of retrieval and generation quality. Replaces guesswork with numbers you can defend in front of stakeholders.
EXPERIENCE
- 2025 - present
- Lead Backend Engineer · Myra Security GmbH
- 2022 - 2025
- Senior Back-End Engineer · Proton AG
- 2022
- Software Engineering Tech Lead · Myra Security GmbH
- 2017 - 2021
- Senior Software Developer · Myra Security GmbH
- 2014 - 2017
- Software Developer · Refined Labs GmbH
- 2013 - 2014
- Software Developer · redblue Marketing GmbH
- 2008 - 2013
- Software Developer · Sixt SE
- 2007 - 2008
- Software Developer · Jenomics GmbH
SKILLS
- languages
- --go --golang --php --sql
- storage
- --mysql --postgres --neo4j --redis --rabbitmq
- infra
- --linux --nginx
- ai/ml
- --RAG --LLM --agents --tool-use --orchestration --ollama --vllm --evaluation
- process
- --git --agile --tdd --pair-programming
AVAILABILITY
● open for new RAG engagements - part-time, project-based.
CONTACT
- author[at]prillwitz.io
- github
- github.com/xellio
- linkedin.com/in/richard-prillwitz