Currency

Backend Developer (Python + AI)

AI/ML

Backend Developer (Python + AI)

AI/ML

Marszałkowska 89, Warszawa

Mimira

Full-time
Any
Mid
Hybrid

Tech stack

    English

    C1

    AI

    master

    Python

    master

    ETL

    advanced

    GitHub

    advanced

    SQL

    regular

    DevOps

    regular

Job description

💫 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.

Published: 09.10.2025

Meet the company

Mimira

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.

Company profile
Office location

Backend Developer (Python + AI)

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Backend Developer (Python + AI)

Marszałkowska 89, Warszawa

Mimira

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