(Applied) AI Engineer

Reposted 21 Days Ago
Be an Early Applicant
Berlin, DEU
In-Office
65K-100K Annually
Mid level
Artificial Intelligence • Information Technology • Natural Language Processing • Software
The Role
As a Backend Engineer, you'll design and scale backend systems for AI, transforming unstructured data into structured context, and develop high-performance retrieval systems.
Summary Generated by Built In

We're building the self-maintaining source of truth for the AI-native company, the context repository that keeps company knowledge structured, up-to-date, permission-aware, and ready for every AI agent.

That takes people who are exceptionally talented, obsessed by the vision, and set on doing the best work of their lives. If that's you, read on.

The Opportunity

You'll design and scale the backend that powers a company's brain, the logic that lets AI reason over live company knowledge instead of static data.

You'll own the architecture behind sync and retrieval: turning unstructured information from every data source into a structured, versioned, queryable context repository. Your work defines how AI systems across our customers' organizations reach relevant, up-to-date, permission-aware context in real time.

We're already live with 15+ design partners and launching v1 in Q3 2026. This is the rare moment where the product, the architecture, and the category are still yours to shape. We think of Qontext as a once-in-a-lifetime opportunity, and we hire people who feel the same.

What You’ll Do
  • Design and implement the core backend logic of the context repository

  • Build and optimize the sync, turning raw data source data into structured, graph-based context

  • Develop high-performance retrieval and ranking, combining hybrid search, rule-based logic, and identity resolution

  • Productize complex logic through clean APIs and modular components (MCP, CLI, API, etc.)

  • Build evaluation and experimentation frameworks that continuously raise contextual accuracy

You’ll Thrive Here If You…
  • Love distributed systems and high-complexity logic problems

  • Are fluent in TypeScript or Python and have an eye for clean, scalable architecture

  • Turn research and theory into production-grade product

  • Have a bias for ownership and thrive in fast-paced, early-stage environments

  • Are endlessly curious and pragmatic, and care about making AI truly useful

Why Join Us
  • Challenge: A genuinely hard intellectual and systems problem

  • Cutting edge: Turning the latest research into a product used at scale

  • Mission: Building the infrastructure for the next generation of work

  • Impact: Shape the company and architecture from day one

  • Ownership: Competitive salary plus meaningful early equity

  • Culture: Deep-tech mindset, transparency, radical candor and fast execution

Process
  1. Get to know each other · 30 min

  2. Chat with co-founder(s) · 30 min

  3. Technical interview · 1h

  4. Take-home case · 3h

  5. Case discussion · 1h

  6. Offer

Practical Info
  • Location: Berlin

  • Start date: ASAP

  • Type: Full-time

  • Compensation: €65k - €100k + equity package

Skills Required

  • Fluent in TypeScript or Python
  • Experience with distributed systems
  • Ability to design scalable architecture
  • Experience in data ingestion and retrieval systems
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
5 Employees
Year Founded: 2025

What We Do

Qontext builds the foundational context infrastructure for AI processes, acting as the context layer for AI applications.

Similar Jobs

Nebius Logo Nebius

Solutions Engineer

Artificial Intelligence • Information Technology • Consulting
In-Office or Remote
27 Locations
473 Employees
200-350K Annually

CuspAI Logo CuspAI

Machine Learning Engineer

Artificial Intelligence • Software • Industrial • Generative AI
Hybrid
4 Locations
59 Employees

Navan Logo Navan

Staff Software Engineer

Fintech • Information Technology • Payments • Productivity • Software • Travel • Automation
Easy Apply
Hybrid
Berlin, DEU
3300 Employees
60K-120K Annually

Superhuman Logo Superhuman

Software Engineer

Artificial Intelligence • Information Technology • Machine Learning • Natural Language Processing • Productivity • Software • Generative AI
Hybrid
Berlin, DEU
1500 Employees

Similar Companies Hiring

Golden Pet Brands Thumbnail
Digital Media • eCommerce • Information Technology • Marketing Tech • Pet • Retail • Social Media
El Segundo, California
178 Employees
Kepler  Thumbnail
Fintech • Software
New York, New York
6 Employees
Onshore Thumbnail
Artificial Intelligence • Fintech • Software • Financial Services
New York, New York
60 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account