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Senior / Staff Backend Engineer

W3 Sourcing

Job Description

Job Description

THE OPPORTUNITY

A portfolio of AI-native and data-intensive startups is hiring backend engineers to build the reliable systems, data models and infrastructure behind rapidly scaling products.

WHAT YOU WILL DO

  • Design and build resilient backend services, APIs, data models and asynchronous workflows.
  • Own business-critical systems from architecture through deployment, monitoring and incident response.
  • Improve performance, reliability, security and developer velocity as products scale.
  • Build clean interfaces around complex data and third-party integrations.
  • Partner with product and customer-facing teams to prioritise high-impact technical investments.
  • Mentor engineers and help establish practical engineering standards.

WHAT WE ARE LOOKING FOR

  • Substantial production backend engineering experience with Python, Go, Java, Rust, Node.js or similar.
  • Strong fundamentals in system design, databases, distributed systems and API development.
  • Experience operating cloud-based services and diagnosing performance or reliability problems.
  • Track record of owning complex projects with limited oversight.
  • Pragmatic judgment, strong debugging skills and an ability to communicate trade-offs clearly.

PREFERRED BUT NOT ESSENTIAL

  • PostgreSQL, event-driven architecture, queues or workflow orchestration.
  • AI/ML platform, LLM infrastructure or high-volume data-processing experience.
  • AWS, GCP or Azure; Kubernetes and infrastructure-as-code exposure.

APPLICATION PROCESS

Employer identity and full role-specific details will be shared with suitable candidates during the recruiter screening process.

To apply: send your CV to View email address on ziprecruiter.com or contact linkedin.com/in/perrybarrow/ w3sourcing.com/jobs

Equal opportunity: Applications are welcomed from qualified candidates of all backgrounds. Eligibility to work in the stated location and any sponsorship availability will depend on the specific employer.

Vacancy posted 2 days ago
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