Kotlin Developer

Salary
£500 - Per Day
Location
Greater London, United Kingdom
Type
Contract
Workplace
Remote
Published
Aug 20, 2026
Ref
172340
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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.

If you have the required skills and availability, please apply with an updated CV.

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