✦ Luna Orbit — Software Engineering

Senior Software Engineer

at Twilio

📍 Remote - United Kingdom Remote Posted March 19, 2026
Type Full-Time
Experience senior
Exp. Years 5+ years
Education Bachelor’s/Master’s in Computer Science, Engineering, or related field
Category Software Engineering

This role involves developing SDKs and backend services to enhance Twilio’s contact center products, focusing on reliability, scalability, and developer experience.

  • Build and maintain SDKs
  • Design scalable backend services
  • Ensure system reliability and performance
  • Troubleshoot and optimize systems
  • Collaborate with cross-functional teams

The environment includes Java, Scala, GraphQL, SDK development, and cloud platforms, emphasizing scalable, reliable backend system design.

The ideal candidate is a senior backend engineer with over 5 years of experience in Java or Scala, skilled in building reliable, scalable cloud services and SDKs, with strong troubleshooting and system design expertise.

Bachelor’s/Master’s in Computer Science or related field5+ years building cloud-scale backend systemsJava or Scala programmingDesigning system architectureAutomated testingTroubleshooting
SDK developmentGraphQLAPI designOperational excellenceCustomer support
JiraCloud platformsGitHub
JavaScalaGraphQLSDK developmentBackend servicesReliability engineeringScalabilityPerformance optimizationAutomated testingTroubleshooting
JavaScalaGraphQLSDK developmentBackend servicesReliability engineeringScalabilityPerformance optimizationAutomated testingDocumentation
CollaborationLeadershipCommunicationProblem-solvingTechnical mentorship
Industry SaaS
Job Function SDK and backend service development for cloud contact center solutions
Role Subtype Software Engineer
Tech Domains Java, Scala, GraphQL, API design, Cloud platforms
Senior Software EngineerJavaScalaGraphQLSDK developmentBackend servicesReliability engineeringScalabilityPerformance optimizationAutomated testingTroubleshootingCloud-scale systemsAPI designSystem architectureOperational excellence

Less than 5 years of experience, Lack of Java or Scala experience, No experience with cloud-scale backend systems

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