Senior Java Engineer

Job Title

Job Description

So, who are we?

IG is a FTSE 100 fintech operating across five continents, serving over 1.3m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation; it's how we've always operated. What that means for the people who work here is real: genuinely complex problems to solve, the technology and resources to tackle them properly, and the kind of scope that's rare in established businesses.

The bar is high – bring a curious and forward-thinking mindset and we'll give you the platform to define what comes next. Join us at IG – the future gets built here.

Your team:

This is a newly formed team of senior Java engineers who own Account Opening and Payments, two of the most critical domains at IG. Every client who joins the platform and every transaction that moves money flows through the systems this team is responsible for. 
 

You'll be working alongside other experienced engineers, not supervising juniors. The expectation is that everyone on this team can operate independently, make sound technical decisions, and challenge each other's thinking.

Your role in the Team's Success:
Your primary responsibility will be to,

• Use AI for all coding tasks: feature implementation, refactoring, test creation, documentation, debugging
• Employ Claude Code, GitHub Copilot, and LLM APIs to write better code faster
• Apply AI-assisted code analysis, optimization, and security scanning
• Achieve measurable and significant productivity improvements through AI integration
• Demonstrate when to use AI vs when human judgment is critical
• We primarily work on Java/react based technologies

What you'll do:

• Experience building and deploying production systems at scale.
• Strong understanding of software design patterns and SOLID principles
• Experience with cloud platforms (AWS, GCP)
• Hands-on experience building and scaling microservices architectures
• Demonstrated use of Claude Code, GitHub Copilot, or similar AI development tools in production work
• Experience implementing AI in CI/CD pipelines (code review, testing, security scanning)

What you'll need for this role:

• Strong Java skills with 6+ years of experience and hands-on experience with Spring Boot in production.

• Designing and operating microservices: not just building them, but owning them through deployment, monitoring and incident response 

• Working with cloud infrastructure (AWS or GCP), including an understanding of networking, IAM and managed services rather than just deploying to them 

• Building APIs that other teams consume, with a feel for what makes a contract reliable and easy to integrate against 

• Familiarity with event-driven architectures, messaging systems, or asynchronous processing patterns 

How we work:
We try to take a thoughtful approach to our ways of working as a company. We follow a hybrid working model with 3 days in the office -- which we think balances the need to collaborate effectively and connect with each other. When it comes to how we deliver, there are 5 things we want everyone to do to drive high performance, better learning and career satisfaction:

• Lead and Inspire: Drives trust, alignment, and enthusiasm
• Think Big: Focus on the problems that most impact commercial outcomes
• Champion the client: Understand and prioritise client's needs
• Deliver at pace: Push for fast, sustainable growth.
• Raise the bar: Take ownership, be accountable and share feedback

We believe that diversity is vital to success, it fuels creativity, drives innovation and sets us up for global success. We're committed to building teams with a variety of perspectives and skills to help us realise our vision and strategy, that's why we encourage applications from people with diverse backgrounds and experiences to join us on this journey. Learn more about our D&I approach here.

The Perks:
Your growth fuels our success! Thrive with tailored development programs, mentoring opportunities with leaders, and clear career progression. Expand your network through committees, sports and social clubs. Enjoy extra time off for volunteering and community work.
Learn more about the Perks here!

Join us for this exciting journey. Apply now!

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