Staff Software Engineer Java JVM – Tech for Good

Company: Client Server
Apply for the Staff Software Engineer Java JVM – Tech for Good
Location: London
Job Description:

Staff Software Engineer / Developer (Java JVM Kotlin AWS React) to £120k

Join a HealthTech start‑up founded by two Cambridge‑educated management consultants aimed at improving patient and social care by leveraging complex technology to enhance access to patient records, enabling collaboration between healthcare providers and improving nursing and medical care.

Responsibilities

You will collaborate with the CTO on the overall design and architecture of the product’s tech stack, working on green‑field applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end.

Hands‑on with architecture, design and coding, including complex business logic, authentication and security aspects, working across the full tech stack to create the beta product.

Location / WFH

You can work from home most of the time, with the caveat that you will meet up with colleagues in the London office occasionally.

About You

  • Expertise with software engineering best practices, experience across the full development lifecycle and tech stack
  • Experience with Java, JVM, Kotlin, SpringBoot and AWS
  • Good understanding of APIs and permission‑based systems
  • Good understanding of software architecture and design and experience of building systems from scratch
  • Able to assess, recommend and make technical decisions with long‑term product strategy in mind, comfortable with AI tools (such as Claude)
  • Strong technical project ownership / leadership skills and experience of working with clients
  • Excellent communication and stakeholder management skills
  • Keenness to work in a start‑up and generally interested in driving efficiency in healthcare
  • Degree educated in Computer Science or similar technical discipline
  • Experience with RBAC systems would be beneficial

What’s In It For You

  • Salary to £120k
  • Equity shares package
  • Impactful role with excellent progression opportunities
  • Opportunity to work on tech for good to positively benefit society
  • Mostly remote working / work from home

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Posted: July 6th, 2026