Senior Backend Engineer

Summary

The Senior Backend Engineer will design and build scalable applications using JavaScript/TypeScript and AWS infrastructure. The role requires a full-stack mindset with a focus on architectural decision-making and modern software development best practices.

Salary: £65,000 - 105,000 per year

Requirements:
  • Strong backend development experience using JavaScript/TypeScript.
  • Experience with AWS and knowledge of managing infrastructure as code, ideally with CDK.
  • Ability to move seamlessly between frontend and backend development, with a passion for architectural decision-making and application design.
  • Extensive knowledge of modern software development best practices.
  • Enthusiasm for technology and a continuous learning mindset.
  • Previous experience in a start-up or scale-up environment is highly desirable.
  • Pragmatic approach and ability to prioritize areas that drive growth and performance.
Responsibilities:
  • Take ownership of our backend development, focusing on the core platform.
  • Develop responsive, maintainable, and user-centric backend applications.
  • Work on a greenfield project with significant impact and contribute to our rapid scaling over the next 1-2 years.
  • Collaborate closely with our small, high-performing team in a fast-paced start-up environment.
  • Make architectural decisions and provide mentorship to junior team members.
  • Drive the implementation of modern software development best practices.
Technologies:
  • AWS
  • Backend
  • Frontend
  • JavaScript
  • TypeScript
  • Cloud

More:

We are an innovative Health-tech start-up backed by industry leaders, with a clear roadmap and a strong focus on fostering an exceptional team culture. We are one of the first engineering hires, giving you the chance to make a meaningful impact while working on cutting-edge technology. You will work closely with our inspirational CEO, who has a proven track record of founding successful companies, and benefit from significant backing from a major player in the healthcare industry as well as ample runway to focus on building exceptional software and driving technological advancements. We offer a competitive salary up to 90,000 per year, an annual bonus of 7.5%, 28 days of holiday including bank holidays, 600 flexible benefits, a 10% pension contribution, and a hybrid working arrangement with 3 days in the office. We are committed to creating a diverse and inclusive environment for our team and clients.

last updated 34 week of 2026

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