Remote Senior Software Engineer

Salary: £36,000 - 76,000 per year

Requirements

• Bachelors or Masters degree in Computer Science, Engineering, or a related field.
• 5+ years of experience building and operating cloud-scale backend systems.
• Strong programming skills in backend languages such as Java or Scala.
• Experience authoring technical specifications and delivering end-to-end system designs.
• Strong fundamentals in concurrency and distributed systems.
• Experience working with AWS or other cloud platforms at scale.
• Proven ability to maintain a high operational excellence bar and mentor junior engineers on reliability and maintainability.
• Strong communication skills and the ability to thrive in collaborative, fast-moving teams.
• Excellent problem-solving and critical thinking skills.
• Prior experience building SDKs and a GraphQL BFF layer is an added advantage.
• Ability to establish backend engineering guidelines and represent the team within the broader engineering organization.
• Passion for delivering high-quality products and continuously learning new technologies.
• Strong sense of ownership and accountability.
• Comfortable navigating ambiguity and driving clarity in evolving environments.

Responsibilities

• Design, build, and maintain large-scale backend services with a focus on reliability, availability, scalability, and performance.
• Lead technical design efforts and ensure architecture decisions are well-documented and future-proof.
• Collaborate closely with senior engineers, product managers, and cross-functional stakeholders.
• Champion high-quality engineering practices, including automated testing, maintainable code, and thorough documentation.
• Own and continuously improve our developer experience for SDK customers.
• Support customers by troubleshooting issues and promoting backend and SDK best practices.
• Contribute to operational excellence by maintaining a high reliability bar and participating in incident response and system improvements.

Technologies

• AWS
• Backend
• Cloud
• GraphQL
• Support
• Java
• Scala
• AI
• DevOps

More

We are Twilio, shaping the future of communications through innovative solutions for hundreds of thousands of businesses and millions of developers worldwide. We operate in a remote-first environment with a strong culture of connection and global inclusion, and this Senior Software Engineer role is remote and based in the UK. We offer competitive pay, generous time off, parental and wellness leave, healthcare, a retirement savings program, and more, with benefits varying by location. We value initiative, collaboration, and continuous learning, and we also support community impact through volunteering and donation efforts.

last updated 28 week of 2026