Senior Software Engineer | API Enterprise

Senior Software Engineer | API Enterprise

Full-Time 63000 - 77000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Join our API Enterprise team to enhance our enterprise API platform and ensure its reliability.
  • Company: DeepL, a mission-driven tech company focused on growth and innovation.
  • Benefits: Enjoy hybrid work, 30 days annual leave, virtual shares, and monthly hack Fridays.
  • Other info: Dynamic environment with opportunities for professional growth and AI-enabled delivery.
  • Why this job: Make a real impact by shaping governance and security for global organisations.
  • Qualifications: Expertise in C#/.NET, backend systems, and cross-team collaboration required.

The predicted salary is between 63000 - 77000 £ per year.

Join DeepL’s API Enterprise team to boost adoption of our enterprise API platform. You’ll shape governance, data residency, and security controls for global organizations, while ensuring production reliability and scalable backend design. This role balances deep technical work with cross-team collaboration to deliver enterprise-grade capabilities. You’ll work in a mission-driven, growth-focused environment that values ownership and AI-enabled delivery.

Pay / Benefits

  • Hybrid work
  • 30 days annual leave
  • Virtual Shares
  • Monthly hack Fridays
  • Regular in-person team events
  • Competitive benefits tailored to location

Responsibilities

  • Own features that drive enterprise adoption of the API, including usage insights, cost controls, and governance tooling
  • Design and implement governance and compliance controls (roles, data residency, auditability) for enterprise IT and security admins
  • Manage end-to-end service delivery with on-call participation, maintaining high API reliability and security
  • Architect across the enterprise ecosystem, coordinating dependencies across teams to ship cohesive capabilities
  • Contribute to high-quality backend systems with strong testing, monitoring, and SLOs to prevent breaking changes

Key requirements

  • Enterprise-first mindset with focus on IT and security admins as primary users
  • Backend mastery at scale in C# / .NET, with experience on large distributed systems
  • Hands-on enterprise API experience (MCP, CLIs, OAuth) and secure, extensible integrations
  • Proven cross-team leadership and ability to align stakeholders
  • End-to-end ownership of services including production operations and incident response
  • Experience leveraging AI-powered tooling to accelerate delivery
  • Bonus: zero-downtime migrations, metering/usage-data systems, compliance environments (SOC 2, ISO 27001, etc.)
  • Strong communicator
  • Cross-team collaboration
  • Ownership and accountability
  • C# / .NET backend design and RESTful APIs
  • Distributed systems and scalable architecture
  • API design fundamentals and system design

Senior Software Engineer | API Enterprise employer: DeepL

DeepL is an exceptional employer that fosters a culture of innovation, trust, and well-being, making it an ideal place for an Engineering Manager to thrive. With a diverse, globally distributed team and a commitment to employee growth through regular feedback and career development coaching, DeepL offers a unique blend of flexible working arrangements, competitive benefits, and the opportunity to make a meaningful impact in the AI industry. The company's focus on open communication and collaboration ensures that every team member feels valued and empowered to contribute to its mission of breaking down language barriers worldwide.

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Contact Details:

DeepL Recruitment Team

We think you need these skills to ace Senior Software Engineer | API Enterprise

C#
.NET
Backend Development
API Design
Distributed Systems
Scalable Architecture
Governance and Compliance Controls