Senior Java Backend Engineer | Cloud-Native, AWS, AI Tools

Capco; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Discretionary bonus

Competitive pension

Health insurance

Life insurance

Critical illness cover

CareFirst/Unmind mental health support

Five weeks annual leave

Job summary

Capco is seeking a Senior Backend Engineer (Java) in London to design and build cloud-native backend services using Java, Spring Boot, and AWS. You will influence backend architecture, champion best practices, and contribute to modern banking technology while embracing AI-enabled development practices.

You will work in Capco's Technology & Engineering team, delivering enterprise-grade platforms for Tier 1 financial institutions, and participating in CI/CD, testing, and collaboration within agile

Qualifications

• Strong expertise in Java (11, 17, 21+) and Spring Boot, with experience building enterprise-grade backend applications.
• Deep knowledge of public cloud platforms, preferably AWS, alongside cloud-native, microservices, and event-driven architectures.
• Proven experience with CI/CD pipelines, SQL and NoSQL databases, Kafka, Java Streaming, and modern software engineering practices.
• Familiarity with Infrastructure as Code (for example, CloudFormation), distributed systems, secure application design, and scalable cloud deployments.
• Experience using AI-enabled tools responsibly to improve engineering productivity while maintaining appropriate governance and quality.

Responsibilities

• Design and build cloud-native, microservices-based applications using Java (11+) and Spring Boot.
• Deliver enterprise-ready solutions on AWS, applying modern engineering practices and AI-enabled development approaches to improve delivery efficiency and code quality.
• Build, maintain, and optimise CI/CD pipelines to support secure, scalable, and reliable software deployments.
• Develop comprehensive automated tests and promote quality-driven engineering practices across the software development lifecycle.
• Collaborate with agile teams to solve complex technical challenges and contribute to architecture decisions.

Skills

Java

Spring Boot

AWS

CI/CD

Kafka

SQL

NoSQL

Event-driven

Cloud-native

Infrastructure as Code

Tools

GitLab

Cucumber

CloudFormation

Job description

Capco is seeking a Senior Backend Engineer (Java) in London to design and build cloud-native backend services using Java, Spring Boot, and AWS. You will influence backend architecture, champion best practices, and contribute to modern banking technology while embracing AI-enabled development practices.

You will work in Capco's Technology & Engineering team, delivering enterprise-grade platforms for Tier 1 financial institutions, and participating in CI/CD, testing, and collaboration within agile