Senior Software Engineer: IC (Backend/Java Spring Boot)

The IG Group; City of Westminster; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading FinTech company in the UK is searching for a Senior Backend Engineer to design and implement high-performance backend services for their new crypto offering. The ideal candidate should have strong skills in Java and experience with Kubernetes. This role promotes a hybrid working environment with competitive salary benefits and a focus on innovation and client satisfaction.

Benefits

Competitive salary

Flexible Benefits Package

Private medical cover

Life insurance

Gym membership contribution

25 days holiday with additional perks

Qualifications

• Strong backend engineering skills in Java (Spring Boot, REST/gRPC).
• Experience running production workloads on Kubernetes.
• Solid knowledge of DevOps practices and container orchestration.

Responsibilities

• Design, build, and maintain cloud-native backend services.
• Own and improve CI/CD pipelines.
• Drive technical excellence in performance and security.

Skills

Java (Spring Boot)

Kubernetes

DevOps practices

CI/CD pipelines

Security coding

Tools

Docker

Terraform

Grafana

Splunk

Postgres

Redis

Job description

trading platform, ready for launch in 2025.

Your role in the Team's Success

As a Senior Backend Engineer (IC), you will be at the core of building and running IG's new crypto offering. You'll design and implement high-performance, cloud‑native backend services, while owning key DevOps responsibilities to ensure our systems are robust, observable, and secure. You will be trusted to move fast, solve complex problems, and take full ownership from code to production.

What you'll do

• Design, build, and maintain cloud-native backend services in Java (Spring Boot WebFlux/MVC).
• Own and improve CI/CD pipelines (GitLab CI, Docker, Kubernetes on AWS EKS).
• Implement and maintain observability, monitoring, and alerting (Grafana, Splunk, OTEL).
• Collaborate closely with Product, Design, and Frontend teams to deliver business‑critical features.
• Drive technical excellence in performance, scalability, and security, especially in a crypto/fintech context.
• Troubleshoot and resolve production incidents with a proactive, ownership mindset.

What you'll need for this role

• Strong backend engineering skills in Java (Spring Boot, REST/gRPC, Postgres, Redis).
• Proven experience running production workloads on Kubernetes (AWS EKS preferred).
• Solid knowledge of DevOps practices, including CI/CD pipelines, infrastructure‑as‑code (Terraform), and container orchestration.
• Experience with observability tooling and performance troubleshooting in distributed systems.
• Security‑first mindset, with understanding of secure coding and deployment practices.
• Proactive problem‑solver with the ability to work independently and collaboratively in a high‑performance team.

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.

Competitive salary. Flexible Benefits Package on top of your salary (12%). Private medical cover for you and your family. Life insurance. Contribution to gym memberships.

25 Days holiday, with 1 additional day off to celebrate your Birthday & 2 additional days off a year for voluntary work (28 in total). The option to buy or sell holiday days. Unlimited access to the LinkedIn Learning Platform. A comprehensive global and local onboarding process. Employee‑led LGBTQ+, Women’s, Black and Parents & Carers networks with an annual budget for organising events & projects that foster an open, diverse and inclusive culture. Option to participate and create ESG initiatives based on IG Brighter Future Fund. Enhanced primary (maternity), secondary (paternity), and shared parental pay and leave, as well as a range of support and benefits for parents.

Learn more about the Perks here! Join us for this exciting journey. Apply now!

Job Title and Description

Senior Software Engineer: IC (Backend/Java Spring Boot)

Job Description: So, who are we? Hello, we’re IG Group. We are an 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 are 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: We are IG UK’s Crypto Product Engineering team, building the company’s #1 strategic priority for the UK market. Our mission is to deliver a secure, scalable, and high‑performing crypto ...

Number of openings: 1