Software Engineer Kotlin Java JVM

Staff Software Engineer Kotlin Java JVM (PR/100709) London, England

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Salary: GBP
100000 - GBP
120000 per annum + equity + benefits

Staff Software Engineer / Developer (Kotlin Java JVM) Hybrid WFH to £120k

Would you like to progress your career in an impactful hands‑on Software Engineer role working on Tech for Good?

You could be joining a Health Tech Start‑up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and social care for all by using complex technology to improve access to patient records, enabling collaboration between healthcare providers and improving nursing and medical care.

• Salary to £120k
• Equity shares package
• Impactful role with excellent progression opportunities
• Opportunity to work on tech for good to positively benefits society

As a Staff Software Engineer you will collaborate with the CTO on the overall design and architecture of the products’ tech stack, working on Greenfield applications. The tech stack is based on Kotlin, Spring Boot and AWS backend with Type Script, React and Next.js on the front end.

You’ll be 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.

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

• You have expertise with software engineering best practices, experience across the full development lifecycle and tech stack
• You have experience with Java, JVM, Kotlin, Spring Boot and AWS
• You have a good understanding of APIs and permission based systems
• You have a good understanding of software architecture and design and have experience of building systems from scratch
• You’re able to assess, recommend and make technical decisions with long‑term product strategy in mind, you’re comfortable with AI tools (such as Claude)
• You have strong technical project ownership / leadership skills and experience of working with clients
• You have excellent communication and stakeholder management skills
• You’re keen to work in a start‑up and are generally interested in driving efficiency in healthcare
• You are degree educated in Computer Science or similar technical discipline
• Experience with RBAC systems would be beneficial

To find out more about this Staff Software Engineer / Developer (Kotlin Java JVM) opportunity.

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.