Senior Software Engineer - Pricing

FDJ UNITED; Greater London; On-site; GBP 90,000 - 150,000; Full time

Job summary

FDJ UNITED in the UK is seeking a Senior Quant Model Engineer to lead production-grade services for a cutting-edge sportsbook. You’ll work in the Pricing Engineering team, delivering low-latency models and robust APIs within a product-focused culture that emphasizes SWE best practices.

Ideal candidates have strong Java skills, experience with microservices, and a proactive, collaborative mindset. Your work will impact live odds and bet experiences for customers worldwide.

Qualifications

• 5+ years in SWE role implementing complex requirements in a low latency microservice architecture.
• Excellent Java skills (or similar languages, e.g., C#) with high-quality, well-documented code.
• Experience with multiple architectures and systems to solve new challenges.
• Ability to translate architecture documents into deliverable work items.
• Strong written and verbal communication for stakeholders.
• Growth mindset with quick tool and concept adoption.
• Mentor teammates and foster collaboration.

Responsibilities

• Develop production-grade solutions to business requirements using design patterns.
• Refine requirements based on technical expertise and domain knowledge.
• Build robust APIs and streaming interfaces for pricing models and data products.
• Promote SWE best practices for testing, observability, CI/CD, and automation.
• Review peers' solutions and code constructively.
• Collaborate with Pricing Engineering managers to plan workstreams.
• Share knowledge and contributions across the team and business.

Skills

Java

Software engineering

Low latency

Mentoring

Communication

Problem solving

Education

Masters degree in STEM

Tools

CI/CD

C#

Job description

At FDJ UNITED, we don't just follow the game, we reinvent it.

FDJ UNITED is one of Europe’s leading betting and gaming operators, with a vast portfolio of iconic brands and a reputation for technological excellence. With more than 5,000 employees and a presence in around fifteen regulated markets, the Group offers a diversified, responsible range of games, both under exclusive rights and open to competition. We set new standards, proving that entertainment and safety can go hand in hand. Here, you’ll work alongside a team of passionate individuals dedicated to delivering the best and safest entertaining experiences for our customers every day.
We’re looking for bold people who are eager to succeed and ready to level-up the game. If you thrive on innovation, embrace challenges, and want to make a real impact at all levels, FDJ UNITED is your playing field.

Join us in shaping the future of gaming. Are you ready to LEVEL-UP THE GAME?

Senior Quant Model Engineer

At FDJ UNITED, the Pricing Team is focused on building and deploying quantitative algorithms that deliver accurate and low-latency odds to our Sportsbook customers. We build microservices across a variety of sports and products, with a focus on modularity, interpretability, and reproducibility.
As a Senior Engineer within the Pricing Engineering team, you will lead on building, optimising and deploying production-grade services to deliver a cutting-edge sportsbook experience, within a product-focused culture that champions SWE best practices. Your focus will be on hands-on technical delivery and oversight of production systems.
This position would be ideal for any strong software engineer with strong proficiency in Java or similar languages, an interest in sports betting, and the ambition to work on high-impact projects amongst a friendly and intelligent team!

KeyResponsibilities

• Develop production-grade technical solutions to business requirements, usingappropriate designpatterns
• Challenge, refine, and proactively suggest improvements to business requirements based on technicalexpertiseand domain knowledge
• Buildrobust APIs andstreaminginterfaces to allow controlled access tothe Pricing team’scomplexstatisticalmodels and data products.
• Champion best SWE practices for testing, observability, CI/CD, and automationwithin the wider team
• Constructively critique solutions and code of peers
• Work alongsidePricingEngineeringmanagers to plan the effective delivery of workstreams.
• Promote work and contributions for use within the team and the wider business, through global collaboration, conversations, written reports, and presentations.

Expected Attributes

• A minimum of5years ofcommercial experience in aSWErolefocussed onimplementing complex requirements within alow latencymicroservice architecture
• ExcellentJavaskills(or similar languages,e.g.C#), with the ability to write high-quality, performant, and well-documented codeindependently
• Demonstrable experience working with different architectures and systems which you can draw on to solve new challenges
• The ability to write and/or digest technical GAP/Architecture documents into a sequence of deliverablework items
• An excellent communicator, both written and verbal, able to explain complex topics to non-specialiststakeholders
• A problem-solving growth mindset with the ability to pick up new tools and concepts quickly
• Able to be a friendly and approachable team member, capable of mentoring more junior colleagues

Desirable Attributes

• Mastersdegree orhigherinaSTEM subject.
• Experience with incident management best practices
• Experience with writing andanalysingperformance tests
• Experience with automation testing
• Experience writing and deploying software within cloud-nativeenvironments
• Experience working with sporting data or demonstrable knowledge and interest in this area, including an interest in sports betting.

We believe talent knows no boundaries. Our hiring process focuses solely on your skills, experience, and potential to contribute to our team. We welcome applicants from all backgrounds and evaluate each candidate based on merit, regardless of personal characteristics as the age, gender, origin, religion, sexual orientation, neurodiversity or disability.