Senior Full-Stack Engineer: AI-Driven Backend & Microservices

Hackajob Ltd; City of Westminster; On-site; GBP 60,000 - 100,000; Full time

Job summary

Hackajob Ltd in London is seeking a Senior Specialist, Full-Stack Engineer to deliver backend services and UI components across the full product lifecycle. You will own end-to-end delivery, implementing and testing using Java and modern frameworks while collaborating with cross-functional teams.

The role emphasizes strong automation, observability, security, and continuous improvement within an agile environment, with opportunities to shape platform direction on a global scale.

Qualifications

• Hands-on AI development using modern tools and IDEs (e.g., Windsurf).
• Solid understanding of programming concepts and microservices.
• Proficiency in Java with Spring.
• Experience with CI/CD, automated testing (JUnit/Spock), and containers (Docker).
• Familiarity with microservices, observability/telemetry (e.g., Splunk, AppDynamics), and cloud deployments.

Responsibilities

• Design, build, and maintain backend services, batches and APIs, contributing to UI components as needed.
• Own end-to-end delivery, including implementation, testing, deployment, observability, and reliability.
• Write clean, well-tested code and participate in code reviews and continuous improvement.
• Collaborate with product, design, and operations to translate business needs into technical solutions.
• Enhance performance, security, and resiliency through best practices and automation (CI/CD).
• Foster a learning, inclusive team culture aligned to our principles and pillars.

Skills

Java

Spring

CI/CD

Docker

Testing

Tools

GitLab

Groovy

JUnit

IntelliJ

Maven

Git

Job description

Hackajob Ltd in London is seeking a Senior Specialist, Full-Stack Engineer to deliver backend services and UI components across the full product lifecycle. You will own end-to-end delivery, implementing and testing using Java and modern frameworks while collaborating with cross-functional teams.

The role emphasizes strong automation, observability, security, and continuous improvement within an agile environment, with opportunities to shape platform direction on a global scale.