Zeit AI Logo

Zeit AI

Backend Engineer (Infrastructure & Platform) (f/m/d)

Reposted One Month Ago
Be an Early Applicant
In-Office
London, Greater London, England, GBR
Senior level
In-Office
London, Greater London, England, GBR
Senior level
Design and build a scalable backend platform to ingest and sync millions of rows from diverse data sources, shorten customer onboarding, route data securely, enable parallel agentic tooling, and create automated validation and correctness guardrails while keeping systems simple and reliable.
The summary above was generated by AI
The opportunity

LLMs are changing analytical work. Capabilities that once required large teams of highly paid data engineers are becoming accessible to smaller companies for the first time. At Palantir, we delivered real data and BI value, but deployments never scaled without expensive, hands-on engineers. We believe LLMs change that, and we have the customers and revenue to prove the model works.

Now we scale and one key lever is the platform. Every new customer brings new data sources, more rows to sync, and more queries to serve. Your job is to make sure ZeitMind, our autonomous data engineer, can handle onboarding 10 new enterprise customers per week and the hard part isn't the compute. It's capturing each business's context fast enough: connecting messy data systems, making sure the agent's answers are correct, that visualisations hold up, and that the customer is able to get value out of the product quickly. This is as much a product and correctness problem as an infrastructure one, and it hasn't been solved before. Onboarding a customer should be boring. This is the role that lets everything else scale.

 
What you will do
  • Build the sync layer: millions of rows from ERP, CRM, and homegrown systems, ingested incrementally and reliably, without an engineer babysitting the pipeline

  • Cut onboarding time: connecting a new customer's data sources should take hours, not weeks. You abstract sources so our agents work with any of them the same way

  • Make the agent fast where it counts: speed comes from tool design that parallelizes, sub-agents, and branching, not tokens per second. You design tools so work can run concurrently and safely

  • Route data safely between customer networks and ours: security and reliability are features our customers pay for

  • Build the guardrails for correctness: automatic checks and integrated validation tooling so the agent's output can be trusted, and so it flags what a human should verify

  • Keep the platform simple: choose boring technology where boring wins, and be able to say why every system we run earns its place

You will thrive here if you
  • have built or scaled data platforms before and think clearly about data processing architectures

  • have a deep understanding of OLAP and OLTP systems and when to reach for each

  • bring strong backend experience with TypeScript and are at home in cloud infrastructure

  • get foundations right without overengineering them; you build for the scale we will hit next year, not for a hypothetical one

  • take full ownership from idea to production to impact, and are comfortable working without predefined specs

  • want to build foundations early rather than optimize mature systems

  • are genuinely interested in the data and agentic space and how LLMs enable new workflows for non-technical users

Requirements
  • You've been a lead architect or equivalent: built many systems yourself, and seen how large systems fail and evolve. You're here to learn from customers and take bets on a product that doesn't exist yet, not to learn how to write software.

  • Strong TypeScript and cloud infrastructure experience

  • English C1 or above; German a plus

What we offer
  • Munich is our home base, while we grow internationally from London. In-person by design, we support your relocation within Europe.

  • Regular team offsites for product sprints and staying close to the frontier.

  • Zeit AI package: daily lunch allowance, covered dinner in the office, wellpass membership, best tech & tools

  • €5k referral bonus if we hire someone you refer.

Tech stack

TypeScript end to end. Backend on Bun with Postgres and Supabase. React frontend (Mantine, TRPC, TanStack Query). Job/Process management, Docker, VPN/routing and Agentic frameworks: harness, tool calls, sandboxed tools, branching of data and specs.

 
About the interview process
  1. First call with Elisa

  2. Tech screening

  3. Tech interview with Jonas

  4. Decomposition interview

  5. Second technical interview

  6. Behavioural interview

  7. Reference check

  8. Take-home case + Meet the team

  9. Offer

Apply

Still apply if you do not match every requirement. If you are exceptional in core areas and learn fast, we want to talk.

Similar Jobs

Yesterday
In-Office
Mid level
Mid level
Fitness • Hardware • Mobile • Software • Sports • Transportation • Esports
Provides technical support, warranty assistance, and product guidance for SRAM cycling products, primarily suspension systems. Responds to dealer and customer inquiries, maintains technical documentation, communicates product updates, supports industry events and races, and relays customer feedback to Product Development teams. Requires bicycle mechanics experience, cycling knowledge, English and a Nordic language, strong customer service and problem-solving skills, communication abilities, Microsoft Office proficiency, and attention to detail.
Top Skills: MS Office
Yesterday
Remote or Hybrid
Expert/Leader
Expert/Leader
Artificial Intelligence • Cloud • Sales • Security • Software • Cybersecurity • Data Privacy
The Regional Partner Manager is responsible for building the partner community and driving revenue through recruitment, training, and GTM strategies. Duties include managing the partner program, coordinating with sales teams, and developing marketing tools specific to partners.
Yesterday
Remote or Hybrid
Senior level
Senior level
Artificial Intelligence • Fintech • Greentech • Sales • Software • Travel • Hospitality
Provides premium, end-to-end corporate travel support for executive and VIP clients, including air, hotel, ground transport, complex itineraries, bespoke requests, and urgent disruptions. Delivers proactive, discreet service across phone, chat, and email while meeting productivity, handle-time, SLA, and CSAT targets. Builds trusted relationships, makes confident decisions under pressure, and manages travel recommendations in line with preferences, company policy, and duty of care.
Top Skills: AmadeusGalileoGdsSabre

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account