Kotlin Developer
Contract Summary Box:
Location: On-Site
Contract Length: 3 months
Day Rate / Pay: £500.00
IR35 Status: Outside IR35
Start Date: 17/07/2026
The Kotlin Developer contract involves building and maintaining backend integrations for a healthcare-focused AI platform, working within a team to deliver scalable and secure systems. The role requires collaboration with various stakeholders including product managers, engineering teams, and external partners. This is a remote working environment, but the location requirement is on-site, with no relocation offered.
Key Responsibilities
- Design, develop, and maintain integrations between the platform and third-party healthcare systems.
- Build scalable, secure backend services and APIs using Kotlin.
- Take ownership of integration projects from architecture to deployment and improvement.
- Develop data models and architecture to support healthcare workflows.
- Collaborate with stakeholders to deliver high-quality solutions.
- Contribute to engineering standards, documentation, and performance improvements.
Requirements
- On-site location with the right to work in the designated country.
- No relocation assistance provided.
- Several years of professional backend software engineering experience.
- Strong commercial experience in Kotlin development.
- Knowledge of Kotlin Coroutines and asynchronous programming.
- Experience designing and maintaining RESTful and/or GraphQL APIs.
- Experience integrating with third-party systems and external APIs.
- Strong understanding of scalable backend architecture and API design principles.
- Experience designing data models for complex business domains.
- Business-level English proficiency (C1 or equivalent).
- Willingness to travel occasionally to the UK or US as required.
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Kotlin Developer in London employer: Gravitas Group
As a global leader in risk and reinsurance, our client offers an exceptional work environment that prioritises collaboration, inclusivity, and professional development. The role of International Contracts Leader not only provides the opportunity to shape contract strategy across UK and Europe but also fosters personal growth through exposure to complex contractual issues and stakeholder management. With a commitment to innovation and high-quality standards, employees are empowered to thrive in a hybrid working model while contributing to meaningful solutions for clients.
