Hybrid Backend Release Engineer - Java/Kotlin

Citigroup Inc.; Royal Borough of Greenwich; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

27 days annual leave (plus bank hols)

Discretional annual bonus

Private medical care & life insurance

Employee assistance program

Pension plan

Parental leave

Employee discounts

Job summary

Citi’s Chief Technology Office is hiring a Server-Side Engineer in London to build scalable backend services and APIs for internal engineering platforms. You will influence architecture, adopt modern practices, and explore AI to boost developer productivity.

You’ll work in an agile, technology-led environment with collaboration across global teams and a hybrid schedule, up to 2 days at home per week.

Qualifications

• Strong commercial experience with Java or Kotlin.
• Experience building RESTful APIs and backend services.
• Knowledge of relational and/or NoSQL databases (PostgreSQL, MongoDB or Couchbase).
• Experience delivering production-grade software in Agile teams.
• Excellent communication and collaboration skills.

Responsibilities

• Design, build and maintain high-quality backend services.
• Develop APIs and microservices supporting engineering platforms.
• Contribute to architecture and technical design decisions.
• Collaborate with engineers, product teams and stakeholders globally.
• Champion engineering best practices, code quality and automation.
• Explore and apply emerging AI technologies to improve products and developer experience.

Skills

Java

Kotlin

RESTful APIs

Databases (PostgreSQL/MongoDB)

Agile delivery

Communication

Tools

Docker

Kubernetes

Apache Kafka

Spring Boot

OpenShift

Job description

Citi’s Chief Technology Office is hiring a Server-Side Engineer in London to build scalable backend services and APIs for internal engineering platforms. You will influence architecture, adopt modern practices, and explore AI to boost developer productivity.

You’ll work in an agile, technology-led environment with collaboration across global teams and a hybrid schedule, up to 2 days at home per week.