---
title: 'Founding Engineer (m/f/d) at A11'
canonical: 'https://feeny.ai/job/founding-engineer-m-f-d-a11-berlin-9g8janzyxyb0'
type: 'job'
last_seen: '2026-09-08'
---

# Founding Engineer (m/f/d) at A11 

- **Company:** A11 
- **Location:** Berlin, Germany
- **Posted:** 2026-09-08
- **Last confirmed live:** 2026-09-08
- **Apply:** https://job-boards.greenhouse.io/projectaservicesgmbhcokg/jobs/8785160002

## Job description

## About the Job

As a key growth accelerator, A11 partners with Europe's most ambitious startups and scaleups, corporates and SMBs to connect them with top-tier talent ready to make an impact.

We're looking for an experienced, ownership-driven Founding Engineer (m/f/d) to help build the engineering foundation of one of Europe's most ambitious AI-native fintech plays. Our partner company is building AI-native software that automates private market operations, replacing manual fund accounting processes with intelligent, traceable workflows tackling a $13 trillion industry still run on outdated infrastructure.

You will build full-stack, AI-native product features end-to-end, design and own the agent framework, including context engineering and agentic workflows and shape significant parts of the product roadmap. You work directly with founders and users, translating real operational pain points into shipped features and grow fast into leadership as you prove impact.

In this role, you’ll:

- Engage directly with users to understand real-world challenges in private market operations
- Build full-stack features that combine intuitive interfaces with intelligent backend logic
- Design and build the agent framework, including context engineering and agentic workflows
- Own significant product areas end-to-end and help shape the development roadmap
- Shape and improve AI-native product delivery processes as the team scales
- Move fast and iterate closely with the founders and users in a tight-knit Berlin team

Your Profile:

- Consistent curiosity and a strong sense of ownership over your work
- Ability to bridge engineering and product, communicating clearly across technical and non-technical stakeholders
- Systemic thinker who understands how frontend and backend connect
- Favours pragmatic solutions over unnecessary complexity
- Proficiency with TypeScript, NestJS, Postgres, Prisma, React, or an equivalent stack
- Ideally curious about or experienced in private markets, fund administration, or other manual, process-heavy industries

Please note that this position is based in Berlin.

Benefits and Perks:

- Competitive salary plus incentives and equity
- Join at the ground floor with a founding team that has already scaled one company to 100+ employees and $50M+ in funding
- Fast-paced, on-site culture built on transparency, close collaboration, and rapid execution from the company's Berlin HQ
- Real opportunity for quick advancement into leadership as the company scales
- Global ambition from day one, tackling a $13 trillion industry stuck in outdated infrastructure

If you’re eager to join the A11 Ecosystem and shape what’s next, we want to hear from you!

Our Commitment to Diversity and Inclusion

A11 is committed to diverse and equal opportunities hiring for all – applicants, candidates, and employees alike. We value humans – with all our glorious multifaceted backgrounds, perspectives, and experiences – and look forward to your application.

## About A11 

## Company Overview
- **One-liner**: A11 is an execution engine that scales Europe’s fastest-growing tech companies by embedding expert operators across marketing, sales, data, engineering, and people operations.
- **Entity Type**: Private (Services Firm / Venture Builder)
- **Headquarters**: Berlin, Germany (Julie-Wolfthorn-Straße 1, 10115 Berlin) [a11.com](https://www.a11.com/imprint)
- **Founded**: Not publicly available
- **Founders**: Rainer Berak, Stephan Schulze, Thuy-Ngan Trinh [a11.com](https://www.a11.com/imprint)

## Core Business
- **Primary industry**: Tech consulting / operational scaling / venture building
- **Target customers**: B2B – fast-growing tech companies, unicorns, and pre-seed startups in Europe
- **Mission**: “Build the next billion” – helping companies reach billion-dollar valuations through embedded operational expertise [a11.com](https://www.a11.com/careers)

## Products & Services
A11 provides hands-on, embedded services across multiple domains, delivered by a SWAT team of operators:

- **Growth Marketing & GTM**: Launching products at speed, reducing customer acquisition costs (e.g., helped Trade Republic acquire its first million customers in six months) [a11.com](https://www.a11.com/)
- **Sales**: Account executives, sales development, and go-to-market strategy for DACH and beyond
- **Data & Analytics**: Data engineering, data science, BI & analytics to drive decision-making
- **Engineering & Technology**: Backend engineering, AI agents/workflows, CTO-as-a-service, and team scaling (e.g., scaled Sennder’s tech team from 25 to 145 people in 12 months) [a11.com](https://www.a11.com/)
- **People Operations & Talent**: Recruiting, talent management, and headcount scaling (e.g., built ARX’s robotics & AI team from scratch, hiring 45 employees in 12 months) [a11.com](https://www.a11.com/)
- **Finance & Strategy**: CFO services, accounting, procurement, and EBITDA improvement (improved EBITDA of multiple PE investments by >30% without headcount reduction) [a11.com](https://www.a11.com/)

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company)
- **Key Metric**: Total team size of ~83–90 employees (as of mid-2026) [theorg.com](https://theorg.com/org/a11)
- **Notable Clients/Proof Points**:
  - **Trade Republic**: Delivered first million customers in six months; Trade Republic now valued at €12.5B, one of Europe’s eight decacorns [a11.com](https://www.a11.com/)
  - **Sennder**: Scaled tech team from 25 to 145, increased deployment efficiency by 85%; Sennder is now a unicorn with €1.4B revenue [a11.com](https://www.a11.com/)
  - **ARX Robotics**: Built robotics & AI team from scratch (45 hires in 12 months); closed €9M seed and €31M Series A with backing from the NATO Innovation Fund [a11.com](https://www.a11.com/)
- **Growth Signals**: Actively hiring for 39 open roles across Berlin, Düsseldorf, and Bielefeld, including senior leadership positions (CTO, CFO, VP Product) [greenhouse.io](https://job-boards.greenhouse.io/projectaservicesgmbhcokg/jobs/8583403002)

## Competitive Advantages
- **SWAT team model**: Operators embed directly inside client companies, driving change from the inside rather than offering external advice.
- **Proven track record**: Multiple companies taken from pre-seed to billion-dollar valuations – “zero to one billion” [a11.com](https://www.a11.com/)
- **Operational excellence**: Focus on measurable outcomes (e.g., EBITDA lift, deployment efficiency, customer acquisition cost reduction).
- **Culture**: “No Assholes Allowed” and “We Play to Win” – a high-performance, low-ego environment that attracts top talent. [a11.com](https://www.a11.com/careers)

## Strategic Focus
- **AI enablement**: Hiring a Chief of Staff – Strategy & AI Enablement and AI Product Leads, indicating a push to embed AI capabilities across client operations. [greenhouse.io](https://job-boards.greenhouse.io/projectaservicesgmbhcokg/jobs/8583403002)
- **Ecosystem expansion**: Building a network of portfolio companies and partners; the careers page lists “Ecosystem” roles alongside A11 internal roles. [a11.com](https://www.a11.com/careers)
- **Continued scaling**: Growing the team rapidly to meet demand from Europe’s tech unicorns.

## Why Work Here
- **Culture**: Smart, humble people who back each other to win. Explicit “No Assholes Allowed” policy. High autonomy and ownership. [a11.com](https://www.a11.com/careers)
- **Impact**: Work directly with Europe’s most valuable startups and scale-ups (Trade Republic, Sennder, ARX) – your work drives real business outcomes.
- **Roles**: Diverse opportunities across engineering, data, product, sales, marketing, finance, and people ops – both in A11’s core team and within its client ecosystem.
- **Location**: Based in Berlin with additional offices in Düsseldorf and Bielefeld. Hybrid/office policy not explicitly stated, but roles are listed with city locations.
- **Engineering culture**: Strong emphasis on backend engineering, AI, and data; CTO and senior engineering roles available. [greenhouse.io](https://job-boards.greenhouse.io/projectaservicesgmbhcokg/jobs/8583403002)

## Sources
1. [a11.com](https://www.a11.com/) – Company overview and client case studies
2. [a11.com/careers](https://www.a11.com/careers) – Careers page with values and open roles
3. [theorg.com](https://theorg.com/org/a11) – Org chart and employee count
4. [greenhouse.io](https://job-boards.greenhouse.io/projectaservicesgmbhcokg/jobs/8583403002) – Job listings and role descriptions
5. [a11.com/imprint](https://www.a11.com/imprint) – Legal entity and founders

## Other roles at A11 

- [GTM Engineer (m/f/d)](https://feeny.ai/job/gtm-engineer-m-f-d-a11-berlin-c81nytdbph2e) — Berlin, Germany
- [Junior Sales Manager (m/f/d)](https://feeny.ai/job/junior-sales-manager-m-f-d-a11-hamburg-0nm9a0b0e60b) — Hamburg, Germany
- [Growth Associate (m/f/d)](https://feeny.ai/job/growth-associate-m-f-d-a11-hamburg-6yf5aqkghr32) — Hamburg, Germany
- [IT Compliance Manager (m/w/d)](https://feeny.ai/job/it-compliance-manager-m-w-d-a11-berlin-vtcpaqnjrk8f) — Berlin, Germany
- [Sales Associate (m/f/d)](https://feeny.ai/job/sales-associate-m-f-d-a11-hamburg-k62seesegged) — Hamburg, Germany
- [Growth Associate Intern (m/f/d)](https://feeny.ai/job/growth-associate-intern-m-f-d-a11-hamburg-s3enrhh1yr10) — Hamburg, Germany
- [Founder's Associate Intern (m/f/d)](https://feeny.ai/job/founder-s-associate-intern-m-f-d-a11-hamburg-ahm9rwaqw1dj) — Hamburg, Germany
- [Founding Designer (m/f/d)](https://feeny.ai/job/founding-designer-m-f-d-a11-hamburg-6nd858hq35qc) — Hamburg, Germany
- [Founding Growth Marketer (m/f/d)](https://feeny.ai/job/founding-growth-marketer-m-f-d-a11-hamburg-0rp4x9z6k1nb) — Hamburg, Germany
- [Senior Account Executive (m/f/d)](https://feeny.ai/job/senior-account-executive-m-f-d-a11-hamburg-a8pyr2f632yk) — Hamburg, Germany