Backend Developer (Python + AI)
💫 Mimira - AI Platform for Public Tenders
Mimira combines LLM pipelines, smart search, and automated document handling to help companies:
find the right tenders fast,
match them to their catalogues,
auto-fill the endless forms,
and never miss a deadline again.
Our vision: turn tenders from a bureaucratic nightmare into a scalable growth channel for SMEs.
We guide companies through the entire tender process - from discovery to winning the contract.
🛠️ The Role
We’re looking for a Python Backend Developer with strong AI/LLM experience to join our 4-person team.
You’ll work directly with the founders and help shape Mimira’s core pipelines.
You’ll redefine Agentic AI problems and scale systems like:
Super-Search: high-precision tender–to–catalogue matching using LLM pipelines
DocsFillerPipeline: orchestrating preprocessing → LLM field extraction → normalization → filler → QA for DOCX/PDF forms.
Data ingestion: scraping, parsing, normalizing into SQL models.
⚙️ Our Tech Stack
Python - yes, we use it everywhere
DB/Infra: AWS (Lambda, ECS etc for ETL)
AI/ML: LLMs (incl. Codex, Claude Code etc), Openrouter, Langfuse, Linkup etc
Frontend: Next.js 15, TypeScript, Tailwind, Vercel
✅ You’re a fit if you have:
Solid Python backend development
Experience with LLMs in production (prompting, orchestration, cost/reliability trade-offs).
Problem-solving approach: you can break down any problem to first pricinples and solve it from scratch
Comfort with cloud infra (AWS or similar).
Pragmatism: you care about getting things working reliably, not just prototypes.
💡 What We Offer
Startup equity + competitive salary.
A front-row seat in a fast-growing SaaS startup tackling a €300B+ market.
Direct impact: your work will ship into production within days, not months
Fun outings with the team - kayaking, cycling or pizzaiolo?
A chance to build tech that changes how thousands of companies win business.
📩 How to Apply
Send us a short note + CV/GitHub/portfolio
👥 Our Current Team
Mikołaj Grelewicz Co-Founder / Product
Drive: Loves building products that are 10x better
Superpower: Finding scrappy hacks for impossible problems
Experience: Scaled product teams fast and ran own software house
Backstory: Engineer who dabbled in finance and consulting
Maciej Kensicki Co-Founder / Ops
Drive: Obsessed with getting things done and optimizing everything
Superpower: Turns chaos into order
Experience: Started 2 businesses in fintech/data space and led BizOps
Backstory: Started in consulting, refined in VC, now building from the ground up
Krystian Pietrzak — Founding Engineer (aka Chief Pilot)
Drive: Ship dependable AI systems at scale — fast, safe, repeatable.
Superpower: Turns messy data + infra into clean, production-ready pipelines (LLMOps/NLP/DevOps).
Experience: Built Mimira’s core matching pipeline and AWS architecture. Ex-GE Aerospace AI/ML Engineer (RAG chatbot to prod on local GPUs), Edison Program alum, hands-on CAMO & base maintenance on Q400.
Backstory: Aerospace engineer who moved from the hangar to LLMOps — brings aviation-grade reliability to AI.
Kamil Dąbrowski — Founding Engineer (aka Chief Diver)
Drive: Surface clean, structured data from the wild web — and keep the pipes humming.
Superpower: Builds resilient scraping fleets and airtight ETL; tames Kubernetes/Terraform/AWS into simple, reproducible infra.
Experience: Backend at Mimira (Python/Ruby, high-volume crawlers, LLM apps). Ex-Quantia AI (backend, Ruby/K8s), Bank Pekao (DevOps), SonarHome (FastAPI & Rails, CI/CD on K8s), Spacive (thermal). Linux-first, automation everywhere.
Backstory: Aerospace grad turned open-source-minded builder — dove from heat transfer to data pipelines, now fueling Mimira with trustworthy data.
MIMIRA is a company specializing in the automation of tender processes. It provides technology solutions that streamline tender search and management, helping clients handle public procurement more efficiently.
Backend Developer (Python + AI)
Backend Developer (Python + AI)
Marszałkowska 89, Warszawa
Mimira