Founding Engineer

Harrington Starr

  • London
  • £140,000-150,000 per year
  • Permanent
  • Full-time
  • 2 months ago
We're helping a brand-new, well-funded fintech company find their first Backend Engineers.They're building a 24/7 exchange that's set to change how we trade traditional financial stuff - think US stocks, commodities, and currencies, with big leverage options. Their main goal? Make trading super easy, direct, and fair for everyone. This isn't just another startup; it's a chance to join a team from places like Citadel and Tower Research who are genuinely trying to reinvent a huge industry.As a Founding Backend Engineer, you'll design, build, and own the systems that will soon handle billions of dollars in trades every single day. This is a rare opportunity to work with brilliant minds and really make your mark on financial history.You'll have a hand in everything crucial, including:
  • Creating systems that are always on, super fast, and can handle anything. You'll test them hard to make sure they're perfect.
  • Design fault-tolerant, low-latency, always-available services; write load tests and chaos suites; tune until p99 is boring.
  • Setting up all the tools and processes (like deployment and monitoring) so future teammates can hit the ground running.
  • Helping choose the best tools, set coding rules, and make big decisions about how everything is built as they grow.
  • Sharing knowledge, setting a great example for how they work, and helping us hire more amazing engineers.
What We Need From You:
  • A degree in a science, tech, engineering, or math field from a top university.
  • At least 3+ years building and running online systems that get a lot of traffic or need to be real-time.
  • You love the idea of building a culture where we test everything, track performance, and systems keep working even when things go wrong.
  • You're confident in yourself and others, and you can make important decisions in minutes, not days.
  • You must have UK work authorization and be happy working Monday to Friday from their client's central London office.
  • Experience in finance, exchanges, or building super-fast systems.
  • Deep knowledge of Kubernetes or automating infrastructure.
  • Understanding cybersecurity and compliance rules.
The stack:
  • Backend: Python & Rust (in containers), gRPC, Postgres, Redpanda/Kafka, Kubernetes.
  • Frontend: React (web) & React Native (iOS/Android), TypeScript, Tailwind, Vite.
  • Dev/Infra: GitHub Actions, Terraform, Kubernetes, Grafana, Loki, ArgoCD, AWS.
Contact Ciara Clarke at Harrington Starr for a confidential discussion in this role.Principal ConsultantApply for this roleFirst NameThis is a required fieldLast NameThis is a required fieldTelephone NumberThis is a required fieldEmail AddressThis is a required field A valid email address is required.CV, LinkedIn or Dropbox URLThis is a required fieldCV UploadChoose File This is a required fieldLinkedIn / Dropbox URLThis is a required field A valid LinkedIn URL is required, please ensure it begins with https://www.linkedin.com/ A valid DropBox URL is required, please ensure it begins with https://www.dropbox.com/MessageBy submitting this form you agree to our , & . This is a required fieldNot yet registered?Already have an account?Still Looking? What about...Featured JobsContact UsUK: US:Useful LinksSectorsSign up to our newsletterI confirm that I have read and agree with Harrington Starr's privacy notice, which can be accessed This is a required field A valid email address is requiredHarrington StarrSite byQuick CV DropoffFirst NameThis is a required fieldLast NameThis is a required fieldEmail AddressThis is a required field A valid email address is requiredTelephone NumberThis is a required fieldJob TitleThis is a required fieldCompanyThis is a required fieldCV Upload or URLThis is a required fieldCV UrlThis is a required fieldCV UploadChoose File This is a required field You can only upload files up to 10 MB in size You can only upload doc, docx or pdf filesI would like to be kept up to date with the latest marketing insights and job opportunities.

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