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Twenty First Group

2 open roles

Product Software Engineer - Technology Solutions

London, England, GBFull-timePosted Aug 14, 2026

Job description

We are looking for a Product Software Engineer to join our Technology Solutions division. The Technology Solutions squad builds solutions that unlock value for clients across the sports industry. We work mainly on a project basis, delivering custom-built applications, APIs and AI tools for clients across sports competitions, federations, brands and broadcasters.

Our team operates on an “internal open source” model; we value collective stewardship of our codebase rather than individual silos. You will be a key driver in understanding the “why” behind our systems and the customers they serve This role is for someone who balances high-level system design with a pragmatic, product-first mindset.

You will not just execute on projects; you will help shape them while coaching and mentoring those around you. What You’ll Do Solution Stewardship: Partner with PMs and stakeholders to build custom solutions. You are expected to suggest technical and feature trade-offs to ensure our solutions fit the brief and deliver in the time available without compromising quality Engineering Excellence: Develop robust, low-latency solutions using AWS services Collective Contribution: Participate in our “open source” internal culture.

You will contribute to a shared ecosystem of services and tools, prioritizing the best collective outcome over component “ownership”, and emphasising scalability. Event Support: Our solutions are often focused on specific sporting events, meaning fixed deadlines and go-live support requirements that you will help to provide Conscious AI: Leverage AI tools to accelerate development and enhance system logic, whilst maintaining human oversight and accountability.

Lean XP Practices: Work within an XP-influenced environment, utilizing TDD and continuous delivery to maintain speed and quality in a high-stakes environments.

Requirements

with several years of experience behind you, you are ready to take on a Mid-level role. We welcome applications from recent bootcamp graduate, eg Makers Academy, Le Wagon. Python: a strong proficiency in Python is essential, whilst you should also be comfortable moving between and picking up new languages as we evolve our services Agentic Coding: everyday user of agentic coding workflows, actively pushing the boundaries of AI-assisted development by leveraging Claude Skills, Model Context Protocol (MCP), and autonomous agents.

AWS Serverless: experience building and scaling event-driven architectures (Lambda, Event. Bridge, DynamoDB). Sports Literate: You follow sports and understand the context of the data and markets we build for Nice to Haves Java: our code base contains a significant amount of Java, hands on experience would be helpful Sports business experience: knowledge of the business would be helpful Infrastructure as Code: Hands-on experience with Terraform Data Modeling: Proficiency with SQL and NoSQL data modeling for high-volume, low-latency environments Benefits Hybrid-working out of our London office (Farringdon) - 3 days/week minimum in office Salary based on our external benchmarking framework, plus eligibility for a bonus scheme.

Private health insurance, occupational life cover, and income protection insurance. Personal days, including birthdays and health and wellness days AI forward culture including Claude Code Premium subscription

Description copied from Twenty First Group's careers page. Read the full posting before you apply.

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