Engineering · Mid-Senior
Python / LLM Engineer
Own the AI layer of a live coaching platform: an LLM assistant grounded in a real behavioural-science methodology, retrieval over Qdrant, and the evaluation discipline that keeps it honest.
The role
You'll own the AI capability of a production platform: Bispy, an LLM coaching assistant that must stay inside a client's behavioural-science methodology — an LLM freelancing generic advice would undermine the intellectual property the product is built on. The work is the unglamorous, decisive part of applied AI: retrieval quality over Qdrant, prompt and context engineering, evaluation suites that catch regressions before users do, and the scoring/ML pipeline behind assessments.
Role details
What you'll do
- Own the LLM coaching layer end to end: prompts, context assembly, retrieval, fallbacks, and cost control
- Build and tune retrieval over Qdrant: chunking, embeddings, hybrid search, and relevance you can measure
- Maintain evaluation as a first-class system — golden datasets, automated scoring, regression gates on every change
- Develop the assessment scoring/ML pipeline in Python, with results that are explainable to non-engineers
- Keep data boundaries structural: sensitive assessment data gets the minimum-necessary treatment, always
What you bring
- 3+ years of production Python, with 1+ year building LLM-backed features that shipped
- Hands-on retrieval/RAG experience — vector stores (Qdrant or similar), embeddings, and the failure modes of both
- You treat evaluation as engineering, not vibes: you can describe how you'd catch a quality regression automatically
- Comfort with the full API landscape (Claude, GPT, Gemini, open-weights) and choosing empirically
- Strong written communication — model behavior gets documented, not remembered
Nice to have
- Classical ML fundamentals (scikit-learn-level) for scoring models beyond the LLM
- Experience constraining LLMs to a domain methodology or brand voice with measurable adherence
- Voice or real-time AI exposure
You'll work with
What you get
The deal, plainly
Senior-led delivery: your work is reviewed by people who've shipped production systems, and you see how they think
An AI-native workflow — modern AI tooling is standard practice here, with human review as the quality bar
Real products in production: client work that ships weekly and gets used, not internal demos
Async-first, writing-heavy culture on IST, with deliberate US/EU overlap instead of late-night calls
Competitive compensation, reviewed on outcomes
How we hire
Four steps, no gauntlet
Apply
Send the form on the role page — the cover note and links matter far more than a perfectly formatted CV.
Intro call (30 min)
A real conversation about the role, your work, and whether the fit is mutual. No trick questions.
Practical round
A scoped, role-relevant exercise or portfolio deep-dive — designed to respect your time, not a weekend of free work.
Founder conversation & offer
You meet the person you'll actually work with. If it's a yes on both sides, we move fast.
Apply
Apply — Python / LLM Engineer (Mid-Senior)
The cover note and links matter far more than a perfectly formatted CV. We read every application.