Founding Engineer
Marszałkowska 107, Warszawa
CONTRACTSPOT
Founding Engineer (AI + Platform) - ContractSpot
At ContractSpot, our mission is to tame the chaos of public procurement.
We’re turning bidding from a messy, high-risk process into an efficient, auditable, AI-assisted workflow - opening a €2T market to every company that should be able to compete.
We’re looking for a Founding Engineer to help build the core product: an AI-native procurement platform that becomes the system of record for tender work - for contractors today, and increasingly for contracting authorities tomorrow.
What you will do
Build the end-to-end procurement platform that becomes the workspace and data backbone for our customers: company profiles, documents, past bids, evidence, workflows, permissions, audit trails, integrations - everything needed to run procurement in one place.
Own the full tender lifecycle on our product - from notice ingestion/creation, through market & document data collection, to structured datasets and AI-driven execution (classification, extraction, eligibility checks, drafting, risk detection).
Develop the core intelligence of our AI engine, pushing what it can understand and automate in real procurement workflows (not demos): reliability, evaluation, guardrails, latency/cost, and continuous improvement loops.
Design collaborative workflows that help teams track opportunities, assign tasks, coordinate bid work, and reuse institutional knowledge - powered by historical tender/bid understanding (what worked, what failed, what’s missing, what’s risky).
Build towards the future state: a platform where contracting authorities create and manage tenders directly - enabling a cleaner market, better data, and faster, more transparent procurement.
Long-term: become a technical leader at ContractSpot - owning core systems, setting engineering standards, and helping build the team.
What we’re looking for
You’ve shipped production-grade systems end-to-end (backend + data + product thinking), and you care deeply about quality, performance, and maintainability.
Strong judgment in AI/ML + software engineering: you can make LLM systems reliable (data pipelines, retrieval, evals, monitoring, fallbacks), not just “it works on my machine.”
High agency: you can take an ambiguous problem, turn it into a plan, execute, and iterate quickly.
Relentless ownership: you don’t stop at “model output” - you deliver a feature customers trust in real workflows.
Nice to have: experience with B2B SaaS, workflow products, compliance/audit requirements, document-heavy domains (legal, finance, procurement), multi-tenant architecture, or security.
Why join us?
Do work that matters: use AI to improve how countries spend money - real GDP-level leverage.
Build at the frontier: an AI-native product designed from first principles, not retrofitted AI.
Exceptional team: engineers + legal talent building a generational company.
Early-stage leverage: your decisions will shape the product, culture, and architecture.
How to apply
Apply here - and (super important!) find me: Bartek (CTO) on LinkedIn and DM me so I know you read this line 🙂

ContractSpot is a tendering platform designed for public procurement contractors, helping them easily find the best offers through advanced documentation analysis and intuitive guidance throughout the tendering process. ...
Founding Engineer
Founding Engineer
Marszałkowska 107, Warszawa
CONTRACTSPOT