Lead Kotlin Full-Stack Engineer — Relocation Support

Hippo; Leeds; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Pension scheme

25 days holiday

Perkbox discounts

Life assurance

Cycle-to-work

Relocation support

Job summary

Hippo is seeking a Lead Full Stack Kotlin Developer in Leeds to drive strategic Kotlin delivery across client projects. You will mentor squads, design scalable back-end services with Spring Boot, and collaborate with data, design and delivery teams to solve complex public and private sector problems.

The role combines hands-on coding with leadership, shaping architecture, pipelines, and best practices while mentoring engineers and aligning work with client goals and agile delivery.

Qualifications

• Extensive experience in Kotlin and the full development lifecycle delivering user-centred digital solutions (with a strong foundation in Java/JVM).
• Proven track record of leading a delivery team to deliver high-quality, robust, and scalable solutions.
• Expertise in building back-end services using Kotlin with Spring Boot and the wider Spring Framework (Spring MVC, Spring Security, REST APIs), leveraging Kotlin idioms and coroutines where applicable.
• Experience in Microservices design and architecture, including RESTful API services and Kotlin-based microservice patterns.
• Expertise in public cloud (AWS, Azure, or GCP) and DevOps practices, including containerisation (Docker, Kubernetes).
• In-depth knowledge of Infrastructure as Code tools such as CloudFormation or Terraform.
• Proficient in using CI/CD tools such as Jenkins or Azure DevOps.
• Experience with front-end technologies (e.g., Angular, React, and TypeScript).

Responsibilities

• Act as a technical SME within the squad to produce and ensure user-centred software is developed based on business requirements and following best practice.
• Work collaboratively with colleagues and stakeholders to explore, design, and deliver solutions to complex client problems.
• Continuously review and prioritise the delivery team's workload.
• Design and manage 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.
• Lead the recruitment and on-boarding of other engineers and support their professional development through mentoring and coaching.

Skills

Kotlin & JVM

Delivery leadership

Spring Boot & REST APIs

Microservices design

Cloud & DevOps

CI/CD tools

Frontend tech (Angular/React/Typecript

Tools

Docker

Kubernetes

Terraform

CloudFormation

Jenkins/Azure DevOps

Job description

Hippo is seeking a Lead Full Stack Kotlin Developer in Leeds to drive strategic Kotlin delivery across client projects. You will mentor squads, design scalable back-end services with Spring Boot, and collaborate with data, design and delivery teams to solve complex public and private sector problems.

The role combines hands-on coding with leadership, shaping architecture, pipelines, and best practices while mentoring engineers and aligning work with client goals and agile delivery.