Senior Software Engineer | API

DeepL DeepL · AI Frontier · New York, NY · Engineering

Senior Software Engineer for DeepL's API Core team, focusing on Developer Experience (DevEx), API platform infrastructure, and enabling internal teams to launch APIs. The role involves owning and transforming the developer experience, building reusable components and client libraries, driving API consistency and security, and implementing quality gates and monitoring.

What you'd actually do

  1. Drive "DevEx Delight": You will own and transform the experience of developers using DeepL APIs. You will streamline the entire journey—from anonymous visitor to activated developer—by building intuitive self-service experiences, seamless onboarding flows, and advanced customization interfaces .
  2. Platform Enablement & Scale: You won't just write endpoints; you will build the ecosystem. You will create reusable components, comprehensive documentation, starter templates, and client libraries (SDKs) that empower customers and ISVs to build AI-enabled products rapidly.
  3. Cross-Functional Architecture: You will act as the API standard-bearer across DeepL. Partnering with Enterprise (BAT), Core Text, Voice, and Customization teams, you will drive continuous improvement and maintain the highest standards for the consistency, security, and reliability of all customer-facing APIs.
  4. Guardianship of Quality & Compliance: You will implement automated quality gates, strict contract testing, and robust monitoring infrastructure. You will prevent breaking changes and security vulnerabilities _before_ they hit production, shaping the API design standards and operational excellence practices for our growing platform .

Skills

Required

  • Designing scalable backend systems
  • RESTful APIs
  • distributed architectures
  • Go, Python, Java, C#
  • React/TypeScript
  • Extreme Ownership
  • Operational Excellence
  • AI-powered tools

Nice to have

  • frontend frameworks

What the JD emphasized

  • API Core team
  • API platform infrastructure
  • Developer Experience (DevEx)
  • Product-First
  • API Mindset
  • API standard-bearer
  • customer-facing APIs
  • API design standards

Other signals

  • API platform infrastructure
  • Developer Experience (DevEx)
  • enabling internal product teams to launch world-class APIs