Senior Full Stack Kotlin Developer

Senior Full Stack Kotlin Developer at Hippo leads the production of user-centered software within a multidisciplinary, agile team. You will own development and deployment pipelines, mentor engineers, and communicate progress to stakeholders. You’ll deliver secure, scalable back-end and front-end solutions using Kotlin and JVM, shaping impactful digital services for public and private sector clients. This role combines strategy, design, and technology to solve complex problems and drive measurable value.

• Contributory Pension Scheme
• 25 Days Holiday plus UK Public Holidays
• Perkbox discounts
• Life assurance and death in service cover
• Cycle-to-work scheme
• Salary sacrifice electric vehicles scheme

• Lead the production of user-centred software aligned to business requirements
• Collaborate across disciplines to design and deliver complex client solutions
• Own software development and deployment pipelines, resolving bottlenecks
• Present prototypes, solutions, and progress to stakeholders clearly
• Mentor and coach engineers to support professional development

• Extensive experience in Kotlin and JVM
• Strong Java experience across full development lifecycle
• Exposure to Node.js, TypeScript, Express.js or Nunjucks
• Proven track record delivering high-quality, robust, scalable solutions
• Expertise with Spring Boot and the wider Spring Framework
• Experience in Microservices design and RESTful APIs
• Strong cloud knowledge (AWS, Azure, or GCP) and DevOps practices including Docker and Kubernetes
• Proficiency with Infrastructure as Code (Terraform)
• Proficient with CI/CD tools (Jenkins or Azure DevOps)

• Collaborative mindset
• Mentoring and coaching
• Clear communication with stakeholders
• Kotlin and JVM
• Java SE/EE
• Spring Boot and Spring Framework