Senior Java Developer jobs in London

Help Build the Future of global STEM workforce solutions

We're reimagining how organisations connect talent, technology, and opportunity.

Our team is building the next-generation AI digital platform, automation, cloud-native architecture, and modern engineering practices. This platform is designed to transform workforce engagement at scale through intelligent workflows, seamless integrations, and data-driven experiences.

As a Senior Full Stack Engineer, you'll play a critical role in designing and delivering products that directly influence customer experience, business growth, and the future direction of our technology ecosystem.

This is a unique opportunity to join a greenfield initiative where you'll shape architecture, influence technical strategy, and help establish engineering standards that will scale for years to come.

What You'll Do

As a Senior Full Stack Engineer, you'll work across the entire technology lifecycle, from product discovery and solution design to deployment and continuous improvement.

You will:

• Design, build, and operate scalable full-stack applications using Java and React
• Deliver intuitive, accessible, and high-performing user experiences
• Develop secure, resilient, and observable backend services and APIs
• Collaborate closely with Product Managers, Architects, Designers, and Engineering leaders to solve complex business challenges
• Contribute to architectural decisions and influence long-term technical direction
• Drive engineering excellence through code reviews, testing, automation, and continuous improvement practices
• Design and maintain cloud-native solutions on Azure
• Implement Infrastructure as Code and modern DevOps practices to improve deployment velocity and platform reliability
• Promote AI-assisted software development by leveraging tools such as GitHub Copilot, Cursor, Claude Code, or similar technologies
• Mentor engineers and contribute to a culture of learning, collaboration, and technical excellence
• Identify opportunities to simplify systems, reduce technical debt, and improve platform scalability
• Participate in operational support, incident response, and continuous service improvement initiatives

Minimum Qualifications

• 7+ years of professional software engineering experience
• Strong experience developing enterprise applications using Java 11+ and related technologies
• Extensive experience building modern web applications with React, TypeScript, JavaScript, HTML, and CSS
• Experience designing, building, and consuming RESTful APIs and distributed services
• Strong understanding of software engineering fundamentals, including data structures, design patterns, and system design principles
• Experience with Test-Driven Development (TDD) and automated testing frameworks
• Experience working within Agile software delivery environments
• Experience building and maintaining CI/CD pipelines
• Experience with Infrastructure as Code tools, including Terraform
• Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline (or equivalent practical experience)

Preferred Qualifications

• Experience building cloud-native solutions on Microsoft Azure
• Knowledge of Azure Integration Services, including API Management, Service Bus, and Event Hub
• Experience with event-driven and microservices architectures
• Experience implementing identity and authentication solutions using Azure AD, Azure AD B2C, AWS Cognito, or similar platforms
• Experience working with observability, monitoring, and operational tooling
• Exposure to AI-assisted software engineering practices and developer productivity platforms
• Experience mentoring engineers and contributing to technical leadership initiatives

Technical Environment

You will work with technologies including:

Backend

• Java 11+
• REST APIs
• Microservices Architecture

Frontend

• React 18+
• TypeScript
• JavaScript
• HTML5
• CSS3

Cloud & Platform

• Microsoft Azure
• Azure API Management
• Azure Service Bus
• Azure Event Hub

DevOps & Automation

• Terraform
• CI/CD Pipelines
• Git-based Development Workflows
• Automated Testing Frameworks

AI-Enabled Development

• GitHub Copilot
• Claude Code
• Cursor
• AI-assisted testing, documentation, and engineering workflows

What Success Looks Like

Within your first year, you will:

• Deliver high-impact product capabilities used by customers at scale
• Influence architectural decisions across the platform landscape
• Improve engineering productivity through automation and AI-enabled development practices
• Drive measurable improvements in scalability, reliability, and deployment efficiency
• Contribute to the growth and development of fellow engineers
• Help establish a world-class engineering culture grounded in quality, innovation, and continuous learning

Why Join Us

Work on Meaningful Problems

Build products that redefine how organisations engage with talent and workforce ecosystems.

Shape the Future

Contribute to a greenfield platform where your ideas directly influence architecture, product strategy, and technical direction.

Engineering Excellence

Join a team committed to modern software engineering, cloud-native development, AI-first practices, and continuous improvement.

Growth & Development

Work alongside experienced engineers, architects, and technology leaders while continuing to expand your own technical and leadership capabilities.

Benefits

• Hybrid working model
• Performance-based annual bonus
• 28 days annual leave plus public holidays
• Annual leave purchase scheme
• Private healthcare
• Discounted dental insurance
• Health cashback programme
• Paid volunteering days
• Caregiver leave
• Retail discounts
• Employee share scheme

Our Culture

We believe great technology is built by empowered teams.

We foster an environment where engineers are encouraged to challenge assumptions, experiment responsibly, learn continuously, and take ownership of outcomes. We value technical excellence, customer obsession, collaboration, diversity of thought, and innovation at scale.

If you're passionate about building impactful products and want to help shape the future of digital workforce technology, we'd love to hear from you.

Pay: Up to £80,000.00 per year

Benefits:

• Paid volunteer time
• Private medical insurance
• Work from home

Work Location: Hybrid remote in London