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Smarkets

Senior Backend Software Engineer

LondonHybrid · United Kingdom
Senior · FullTime · Tech
POSTED 24 AUGVERIFIED 7H AGO
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Role
77 days opentrue age
Posted 24 Aug
Pay
£91k–£115kno pay posted
Market p25–p75
£91k–£115k
London · n=14 · 365d to 6 Nov
CompanySmarkets →
6open roles
Opened · 30d
+0
Closed · 30d
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2d of snapshots · 30d window
Market
2,868open · Senior Backend
Opened · 7d
+1254% of open
All backend
8,379open
All tracked boards · live 10 Nov · n=2,868
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UK licensed sponsor
✓Worker (A rating)
Checked 9 Nov
ReactPythonJavaRustC++PostgreSQLMySQLKafkaAWSGCPKubernetesDistributed systems

Who are we?

Smarkets: Predicting the Future of Betting

Smarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise betting - from sports to political markets, to delivering the sharpest prices and the fairest odds.

Our stack is designed for scale, reliability, and speed: Linux, Kafka, Postgres, Kubernetes, with Python 3, Rust, C++17, and React powering our platform. We build infrastructure that institutions trust while keeping trading accessible to everyone. Our edge? We’ve thrived through every market cycle, competitor, and industry revolution.

At the heart of our success are our people. We create a high-performance environment where exceptional talent can thrive, blending deep business experience with a commercial mindset to drive strategic growth.

If you’re ready to help shape the future of prediction markets with cutting-edge technology and a customer-first philosophy, Smarkets is where you belong.

Responsibilities

Lead the design, development, and optimisation of backend services written in Python and Rust

Architect and build scalable, distributed systems to meet the evolving needs of the platform

Enhance system reliability through robust monitoring and alerting systems

Drive and enforce best practices in code quality, testing, and continuous integration/delivery (CI/CD)

Collaborate with product managers and engineering teams to define and deliver complex, high-impact projects

Mentor and guide engineers across the team, fostering a culture of technical excellence and growth

Drive technical decision-making and contribute to the evolution of our backend architecture

Ensure the performance and stability of critical services by implementing improvements with a forward-looking mindset

Role Requirements

6+ years of experience in software engineering, with a focus on backend systems

Familiarity with Python or at least one compiled language (Java, C++, Rust, Go) and are keen on learning Rust

Proven experience designing and building distributed systems in modern cloud environments (AWS, GCP, or similar)

Deep knowledge of DevOps practices and tools, including GitLab and Kubernetes (K8S)

Strong experience with message queuing systems (e.g., Apache Kafka) and relational databases (e.g., PostgreSQL, MySQL)

Previous experience in Sports Betting or Finance industries is a plus

Excellent communication skills, with a proven ability to collaborate effectively with cross-functional teams

Demonstrated leadership in driving complex technical projects to successful completion

Our Values

Our values are at the heart of everything we do - guiding how we work, collaborate, and innovate. They reflect what we expect of ourselves and each other to deliver the best results, while fostering a positive, high-performing environment:

Push to Win: We set ambitious goals and relentlessly pursue them, always striving for excellence.

Make Others Better: We lift each other up, share knowledge, and celebrate team success over individual achievement.

Give a Shit: We care deeply about our work, our users, and the impact we make.

Be a Pro: We take ownership, act with integrity, and consistently deliver to a high standard.

Bring the Energy: We bring positivity, curiosity, and enthusiasm to everything we do, inspiring those around us.

Culture Fit: These values define how we succeed as a team. If this isn’t you, this may not be the right place. We hire people who thrive in a fast-paced, collaborative, and ambitious environment.

Perks & Benefits

We offer a competitive salary and benefits package, alongside a dynamic, collaborative environment where your work truly makes an impact and your voice is heard. Our team is diverse, driven, and ambitious - united by a strong work ethic and a hunger to innovate and win.

Our benefits are designed around Health, Wealth, and Development, supporting you both professionally and personally.

These include:

Stock Options: Vest over 4 years, your success is our success.

Source · SmarketsFirst seen 2 NovOriginal ↗