Senior Fullstack Engineer (B2B contract)

Job Title

Senior Fullstack Engineer (B2B contract)

Job Description

So, who are we?

Hello, we're IG Group. We are a publicly-traded FTSE250 FinTech company who run mobile, web and desktop platforms that help our clients trade stocks & shares, leveraged products, Futures & Options and Crypto.

We are ambitious. Over 340,000 people already use our platforms. We're global with offices in 18 countries and products in 16 regions. We're hungry to move faster, ship better product for our customers and grow our user base. We believe in high autonomy, and we want people who are looking to do things differently in order to create better experiences for our customers.

We work in cross-functional teams and are laser focused on increasing the number of active clients we serve to drive sustainable growth.

Your team

You will work closely with the business, product, design and leadership team, making key technical and architectural decisions about our products.

Our team values and promotes XP (Extreme Programming) practices, including pair programming, TDD (Test-Driven Development), and continuous integration (CI), to foster collaboration and ensure code quality.

We value high engineering standards and will use Dora Metrics to measure and improve our delivery process.

If you're passionate about delivering exceptional user experiences, thrive in leading self-organized teams, driving technical excellence, and championing continuous improvement, join our innovative and collaborative team. Embrace Change!!!!

Your role in the Team's Success

As a Senior Fullstack Engineer, you will be a technical specialist within our development team, working on multiple areas of trading and non-trading platforms.

Technical Leadership & Architecture

• Lead the design and architecture of complex, scalable systems
• Build software based on modern architecture and tech stack, while driving the modernisation where needed, making strategic decisions on refactoring, rebuilding, or replacing components
• Champion best practices in software engineering, including clean code, design patterns, and architectural principles
• Evaluate and introduce new technologies that improve system performance, reliability, and maintainability
• Work with operators, analysts, and business stakeholders to align technical solutions with business needs
  
  

Leadership & Mentoring

• Mentor and guide team members in technical skills, engineering practices, and career development
• Lead by example through pair programming, code reviews, and knowledge sharing sessions
• Foster a culture of continuous learning and engineering excellence
• Support team members in adopting XP practices and TDD methodologies
• Provide technical direction and remove blockers for the team
  
  

Collaboration & Delivery

• Collaborate with cross-functional teams to gather requirements and deliver solutions
• Partner with product owners and business stakeholders to translate business needs into technical solutions
• Continuously improve trading platforms, processes, and team capabilities
  
  

We Adhere To The Following Strategic Principles

• Adopting an API-first approach to ensure seamless integration and scalability
• Employing Microservices and Micro Front Ends to facilitate the split of monolithic architectures
• Embracing an AWS Cloud-first strategy to leverage its powerful infrastructure and services
  
  

Essential

What you'll need for this role

• XP practices: Experience with Extreme Programming practices, particularly TDD, pair programming, and continuous integration
• Java knowledge: Deep understanding of core Java and modern Java frameworks (Spring Boot, etc.)
• FrontEnd knowledge – Good understanding of FrontEnd architecture and experience working with multiple frontend stack
• Complex systems expertise: Proven experience designing, building, and maintaining large-scale, distributed systems in production environments
• Modernisation experience: Demonstrated success in modernising legacy systems, including migrating from monoliths to microservices, refactoring complex codebases, and managing technical debt
• Engineering mindset: Strong focus on engineering fundamentals, including design patterns, SOLID principles, clean architecture, and system design
• Leadership & mentoring: Proven track record of leading technical teams, mentoring engineers, and fostering a culture of excellence
• Cloud & DevOps: Hands-on experience with AWS cloud services, containerization (Docker/Kubernetes), and CI/CD pipelines
  
  

Desirable

• Experience with event-driven systems, financial platforms, or fintech applications
• Familiarity with Dora Metrics and engineering metrics-driven improvement
  
  

If you are enthusiastic about leading teams in an XP (Extreme Programming) environment, driving technical excellence, and working closely with the business to deliver exceptional solutions, we encourage you to apply.

Who we're looking for?

You're curious about delivering value to clients, the rapid developments in tech, and the complex world of fintech. You're also a confident, creative thinker with a knack for innovating. You aspire to build and be part of high performance culture and engineering team.

You understand that great engineering is as much about people and processes as it is about code.

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.

Join us for this exciting journey. Apply now!

Number of openings

Multiple