Senior Full Stack Kotlin Developer

Hippo is a rapidly growing digital consultancy passionate about building and delivering transformative digital solutions for a diverse range of public and private sector clients. We are recruiting for a Senior Full Stack Kotlin Developer to join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems and create lasting value. Our collaborative and agile culture empowers our teams to make a genuine impact.

• Lead the production of user‑centred software, ensuring development follows business requirements and best practice.
• Work collaboratively with colleagues and stakeholders to explore, design, and deliver solutions to complex client problems.
• Take ownership of software development and deployment pipelines, resolving issues and potential bottlenecks.
• Communicate and present prototypes, solutions, and progress to internal and external stakeholders in a clear, concise manner.
• Mentor and coach other engineers to support their professional development.

• Extensive experience in Kotlin and JVM.
• Strong experience in Java and the full development lifecycle delivering user‑centred digital solutions.
• Exposure to Node.js, Type Script, Express.js or Nunjucks.
• Proven track record of contributing to the delivery of high‑quality, robust, and scalable solutions.
• Expertise in building back‑end services using Spring Boot and the wider Spring Framework.
• Experience of microservices design and architecture, including Restful API services.
• Strong knowledge of public cloud (AWS, Azure, or GCP) and Dev Ops practices, including containerisation (Docker, Kubernetes).
• Proficiency in Infrastructure as Code tools such as Terraform.
• Proficient in using CI/CD tools such as Jenkins or Azure Dev Ops.

• Previous experience working on GOV/NHS projects or in a consultancy environment.
• Knowledge of Kafka or other asynchronous messaging systems.
• Knowledge of Helm.

• Contributory Pension Scheme (Hippo 6% & Employee 2%).
• 25 days holiday plus UK public holidays.
• Perkbox access for a wide range of discounts.
• Critical illness cover.
• Life assurance and death in service cover.
• Volunteer days.
• Cycling‑to‑work scheme for avid cyclists.
• Salary sacrifice electric vehicle scheme.
• Season ticket loans.
• Financial and general wellbeing sessions.
• Flexible benefits scheme with options such as private health cover, private dental cover, additional company pension contributions, additional holidays (up to an extra 2 days), wellbeing contribution, charity contributions, and tree planting.

We are headquartered in Leeds and have offices across the UK in Glasgow, Manchester, Birmingham, London and Bristol. Candidates should be located within reasonable travelling distance from one of our offices. A generous relocation support package of up to £8,000 is available to make your move smooth.