Founding AI Engineer

65 347.20 - 130 694.40 USDNet per year - B2B
Python

Founding AI Engineer

Python
Onsite, Warszawa

TechTree

Full-time
B2B
Senior
Office
65 347.20 - 130 694.40 USD
Net per year - B2B

Job description

BEFORE YOU READ THIS

Sequoia published a piece called Services: The New Software. It argues that AI is collapsing the gap between services and software companies — that services firms can now build compounding IP, run at software-like margins, and scale without the traditional headcount pyramid. If that thesis excites you, keep reading. If it doesn't, this role probably isn't for you.

ABOUT THE COMPANY

We're an AI transformation firm. We help companies turn AI ambition into working business systems — combining strategic advisory with hands-on agentic execution, from board-level governance to AI systems deployed in real workflows. We ship working software in 4–6 weeks. Manufacturing firms, e-commerce platforms, healthcare providers, PE portfolio companies.

A small team of practitioners augmented by AI agents. Two to three people producing the output of a 14-person consulting team. Every engagement produces working software and leaves behind reusable components that make the next engagement faster. Sprint #1 runs at 50% margin. Sprint #16 runs at 75%. That's the Sequoia thesis in practice.

WHY THIS ROLE

This is a founding engineering role. You'll own the technical foundation of a company built on the premise that services are the new software. Equity and profit-sharing are included because you're building the engine, not renting your time.

HOW AN ENGAGEMENT WORKS

Weeks 1–2 — Discovery (with the FDE and founder)

Assess client data quality, existing systems, and integration points. Score technical feasibility of AI opportunities. Design the architecture for the selected build target. Map agent workflows, integrations, and data flows.

Weeks 3–5 — Build (you lead)

Build the system. AI agents handle 40–50% of code generation — you handle architecture, integration, edge cases, and the parts that require judgement. Design and build AI agents that automate client workflows: agentic systems that replace manual processes, multi-agent pipelines, autonomous decision-making loops. Integrate with client systems via APIs, MCP connectors, and data pipelines. Test and harden — LLM outputs are non-deterministic, so you build robust evaluation patterns. Ship iteratively — working demos to stakeholders, not "it'll be ready next week."

Week 6 — Prove

Measure results against the business case. Support the founder's leadership presentation with hard numbers. Extract reusable components into the internal IP library — agents, connectors, patterns, prompt templates.

Between sprints

Build and maintain the IP library — the compounding asset that makes Sprint #16 run at 75% margin. Build AI agents that do the services work itself — discovery agents, analysis agents, delivery automation. Contribute to internal product development. Experiment with new models and agent architectures.

WHAT THE WORK LOOKS LIKE

One sprint you're building an agentic knowledge assistant for a 600-person engineering firm. The next you're designing an AI-powered customer service platform for a PE portfolio company. Then you're automating proposal generation for a professional services firm using RAG over their project history. New client, new problem, every 4–6 weeks. This is management consulting meets engineering — you need to understand the business before you write the code.

TECH STACK

This changes fast — you'll help decide what comes next. LLMs: Claude, OpenAI, GCP Vertex AI, OpenRouter. Voice and media: ElevenLabs, Whisper, emerging multimodal APIs. Backend: Python, FastAPI. Frontend: React, Next.js. AI patterns: RAG, agentic workflows, MCP, function calling, tool use, evaluation frameworks. Infrastructure: AWS, Azure, GCP — client-dependent. Dev workflow: Claude Code, Cursor, agentic coding. Code-gen agents are the default way we write software, not an add-on.

WHAT WE LOOK FOR

AI-native by default

Claude Code, Cursor, or equivalent — you already write software with AI agents as co-developers. You've built systems that call LLM APIs in production. If you still think of AI-assisted coding as a novelty, this isn't the right place. Dealbreaker. Required.

Full-stack and you ship

Python backend, React frontend, API integrations — you can build an end-to-end system and put it in front of users. You don't need a separate team for each layer.

You think in systems

When you build something, you think about how it integrates, how it fails, and how someone else reuses it on a different client six months from now.

Velocity is everything

We ship in 4–6 weeks what others take quarters to deliver. You'd rather ship an 80% solution on Tuesday than a 95% solution three weeks from now — and you can articulate what's in the missing 20%. If you need long planning cycles or perfect conditions to start, this pace will break you. Dealbreaker. Required.

Client-facing

You'll present technical decisions to CTOs and COOs. You don't need to be a salesperson, but you need to explain what you built and why it matters in language they understand. Dealbreaker. Required.

Low ego

You'll work alongside a founder, an FDE, client stakeholders, and AI agents. The best idea wins regardless of who had it. If you can't take direct feedback and adjust, this won't work. We reference check. High ego gets spotted fast.

WHAT YOU'LL GET

Rate

20,000 – 40,000 PLN per month net on a B2B contract, Warsaw.

Equity and profit share

Equity stake in the company and profit-sharing tied to engagement performance. You're building the engine — you share in the upside.

Architectural ownership

You're building the foundation, not inheriting someone else's.

Variety

New client, new industry, new problem every 4–6 weeks.

AI-native environment

40–50% of delivery is agent-augmented. Maxing out tokens for 24/7 agentic work is the way. You'll have the tools and the budget to push what's possible.

Tech stack

    English

    C1

    AWS/Azure/GCP

    nice to have

    LLMs (e.g., Claude, OpenAI)

    nice to have

    React

    nice to have

    API integrations

    nice to have

    Python

    nice to have

Office location

Founding AI Engineer

65 347.20 - 130 694.40 USDNet per year - B2B
Summary of the offer

Founding AI Engineer

Onsite, Warszawa
TechTree
65 347.20 - 130 694.40 USDNet per year - B2B
By applying, I consent to the processing of my personal data for the purpose of conducting the recruitment process. Please be informed that the data controller is TechTree (hereinafter "controller"). You have the right to request access to your perso... MoreThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.