Senior Software Engineer

Company: numi
Apply for the Senior Software Engineer
Location: Manchester
Job Description:

Scale global e-commerce and mobility architecture

Manchester, UK

The physical world is the next frontier for artificial intelligence. This pioneering technology company is building the Recognition Economy—a future where advanced intelligence makes physical spaces completely responsive, turning mundane friction into seamless, instinctive experience.

To drive our next phase of global growth, we are expanding our core application development team in Manchester. This is an opportunity to design, build, and scale a high‑volume mobility and pre‑book e‑commerce platform that directly impacts millions of global travel experiences.

You will play a major role in defining product direction, mentoring fellow engineers, and building a world‑class ecosystem where software and physical space connect. For a product‑oriented engineer, this is a career‑defining chapter to build a global platform at massive scale.

What You’ll Be Doing

As a senior member of the engineering team, you will take true technical ownership of the backend services powering the global platform. You will lead architectural discussions and collaborate cross‑functionally to transform ambitious product ideas into highly available, secure, reliable systems.

  • Design and implement scalable backend services for the core pre‑book e‑commerce platform
  • Own the complete feature lifecycle from initial technical specification through to automated deployment
  • Architect distributed systems capable of handling high‑volume consumer traffic across global airports
  • Collaborate with global partners to design and integrate seamless APIs that expand the ecosystem
  • Champion engineering best practices across testing automation, TDD/BDD, and robust CI/CD pipelines
  • Foster a constructive, blameless culture where production issues are treated as collaborative opportunities

What They’re Looking For

The team values practical, collaborative engineers who care deeply about system design, code quality, and solving complex, real‑world problems. You thrive in fast‑paced spaces and value clear, transparent communication.

  • Proven ability to design and deliver large‑scale distributed systems and microservices for high‑volume applications
  • Advanced backend engineering capability with Scala, Java, or similar languages, using Scala as the principal tool
  • Strong production experience with event‑driven architectures and modern software design paradigms
  • Hands‑on database fluency working with relational technologies like MySQL and PostgreSQL
  • Deep understanding of automated build, test, and deploy workflows alongside modern CI/CD pipelines

Nice to Have

  • Familiarity with container technologies and Infrastructure as Code techniques
  • Domain experience working with e‑commerce platforms or complex third‑party API integrations
  • Exposure to an extended ecosystem including TypeScript, React, Snowflake, AWS, or Datadog
  • A proactive interest in leveraging emerging AI tools to enhance engineering productivity

Why Join

Join us and connect with a world‑class team of product leaders and engineers building technology at the absolute intersection of software and the physical world within an inclusive, merit‑led environment.

  • High‑Growth Impact: Scale a global platform from the ground up, designing systems that actively redefine modern mobility
  • Innovation Through Collaboration: Benefit from an office‑first model with four days a week on‑site in Manchester, fostering organic creativity
  • Continuous Evolution: Keep your skills at the absolute forefront of engineering by working with a modern stack backed by advanced AI‑assisted technologies

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Posted: June 21st, 2026