Java/Kotlin Software Engineer – AVP

Salary: £62,000 - 102,000 per year

Requirements:

• Proven experience delivering within technical projects
• Deep, hands-on experience building and running production-grade services, with regular coding experience
• Strong server-side engineering skills in Kotlin or Java, with Java 21 in use, and experience building and consuming RESTful APIs
• Proficiency with relational and/or NoSQL databases such as Couchbase, PostgreSQL, or MongoDB
• Experience with event-driven architecture
• Experience with microservice architecture
• Experience with contract-first APIs such as Swagger
• Experience with message queuing systems such as Apache Kafka
• Experience with scalability and observability in an SRE/DevOps context
• Understanding of containerization with Docker and orchestration with Kubernetes
• Familiarity with CI/CD tools and automated deployments
• Ability to collaborate with product, design, UI engineers, product managers, and other stakeholders to understand requirements and deliver robust backend solutions
• AI experience is highly desirable but not mandatory

Responsibilities:

• Write code and deliver high-quality backend services
• Contribute regularly to production code, not only reviewing the work of others
• Help shape our architecture and technical roadmap
• Stay up to date with GenAI developments and apply new ideas, tools, and patterns to our products
• Participate as a team player by providing thoughtful code reviews, unblocking others, and sharing knowledge
• Communicate clearly, directly, and proactively across a distributed team
• Work closely with engineers across time zones and partner directly with product and platform leadership

Technologies:

• AI
• Backend
• CI/CD
• CTO
• DevOps
• Docker
• Support
• Java
• Kafka
• Kotlin
• Kubernetes
• MongoDB
• NoSQL
• PostgreSQL
• Swagger
• UX UI Design
• Copilot
• GitHub
• Helm
• Ktor
• OpenShift
• ServiceNow
• Spring
• Spring Boot

More:

We are Citis CTO organisation, specifically within Developer Enablement, where we focus on innovation, developer platforms, and internal tools used across the bank. We operate like a startup inside a global bank, experimenting and shipping fast to drive productivity by streamlining and automating processes for our 30,000 engineers. This role is based in Belfast, Northern Ireland, United Kingdom, with a hybrid working model of up to 2 days working from home per week. The team is distributed across Belfast, Canada, and London, and you will work in a business casual environment with access to a competitive salary, annual review, a discretionary performance bonus, 27 days annual leave plus bank holidays, private medical care and life insurance, employee assistance, pension, paid parental leave, employee discounts, and learning and development resources. We also provide access to time-saving AI tools and support a culture of engineering craftsmanship, collaboration, and continual improvement.

last updated 36 week of 2026