Senior Software Engineer - Distributed Systems

Smarkets; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading betting exchange company is seeking a Senior Software Engineer to lead a team focused on building scalable and reliable services. You will manage projects, drive sprint planning, and collaborate with product management. Ideal candidates will have 6-8+ years in distributed system design, hands-on experience with Kubernetes, and proven leadership skills. The role includes competitive salary, stock options, flexible working, and a strong emphasis on employee development.

Benefits

Stock options vested over 4 years

Pension matching scheme

Health insurance

Lunch provided daily

Education budget of £1000 per year

Flexible working model

20 days global working allowance

Qualifications

• 6-8+ years of experience in designing and delivering distributed systems.
• Hands-on experience with Kubernetes and cloud environments.
• Proven leadership experience building and managing technical teams.

Responsibilities

• Lead and manage a team of software engineers for core exchange systems.
• Ensure scalable, reliable and performant services.
• Drive sprint planning and execution for product roadmap.

Skills

Technical leadership

Distributed systems design

Cloud microservices

Kubernetes

Communication skills

Tools

Rust

C++

Terraform

Gitlab CI

Grafana

Prometheus

Job description

Smarkets is a betting exchange for sports and political events that has handled £37 billion in traded volume since 2010. Our goal is to fix the sports betting industry by creating a transparent platform that offers the best value for users, with not only the best odds but also the latest technology, alongside an amazing customer experience.

The Role

As a Senior Software Engineer in our Engineering organisation, you are leading a team of software engineers who build, manage, and maintain the services for Smarkets' core exchange functionalities that power our main products Exchange and SBK. You are here to help organize the direction of your team, guide their career growth, and ensure that we’re building the right stack to power the future of our products. You will be responsible for leveraging your team to ensure that our services are responsive, scalable, and performant.

Ultimately, you will be working alongside your team of engineers, engineering managers, and product managers, to drive the complex technical projects that help deliver the Smarkets product roadmap.

The successful candidate will initially take over technical leadership of the team and will transition to a tech lead manager position later.

The Team

We design, develop, deploy and operate the real-time distributed exchange systems that run 24/7 all year long. Our responsibilities include order matching, pricing feed, activity journaling, settlements, risk management and dissemination of market data. We care a lot about reliability, fault tolerance, throughput, and latency. Our high availability requirements dictate emphasis on testability and reproducibility alongside monitoring and alerting.

Our tech stack includes Rust (low-latency distributed services), Python (property based testing and scripting) and parts written in C++ and Erlang which are gradually decommissioned. We use Postgres as our main DBMS technology and Apache Kafka for queuing. Our CI is based on Nix and we ship daily to production.

You will be joining the team in a pivotal moment as we are transitioning from a monolithic architecture of our core exchange infrastructure to horizontally scalable architecture which can handle 10'000+ orders per second.

In details, you will:

• Engineer and optimise exchange solutions, focusing on but not limited to scalability, low latency, reliability, monitoring, security and automation
• Drive sprint planning, including proper scoping of tasks, and execution of the roadmap delivery goals, working alongside our Product Management function
• Set the standard for quality engineering, including improving our engineering processes, to keep our level of excellence high
• Collaborate with other leads and engineering managers, and other stakeholders in the implementation and future development of product roadmap
• Be proactive during incident management with hands‑on troubleshooting
• Be the champion of the stack by demonstrating first hand how to implement functionalities in the right way, with an eye to the horizon and your mind on the present
• Ensure the career growth of the engineers in your team as they advance in seniority
• Represent the team in cross‑functional meetings and internal events
• Articulate the company vision and strategy to the team; the “why”, the business case, context, benefits any constraints etc

We’d love to talk if you have:

• Previous experience leading and delivering projects in an IC capacity
• Proven leadership skills, and interest in building and managing technical teams
• 6-8 plus years’ experience in designing, developing, and implementing distributed systems
• Can demonstrate deep knowledge in running services in cloud microservice environments and hands‑on experience with Kubernetes
• Familiarity with AWS cloud
• Familiarity with observability principles and tools (Grafana, Prometheus, Sentry Elastic-search, Jaeger)
• Excellent planning and communications skills and able to lead conversations with development and product teams

Preferred Skills and Experience

• 6-8+ years of experience building services for low-latency and high-scale products
• 5+ years of experience working with a compiled language - Rust is preferable, but experience with C++ or Go and interest to learn Rust is also acceptable
• Previous experience leading a team technically or directly
• Proven track record working in agile environments
• Demonstrable experience with CI/CD pipelines and infrastructure as code (IaC) using tools like Terraform and Gitlab CI

Our Values

• Push to win
• Make others better
• Give a shit
• Be a pro
• Bring the energy

Our values are at the heart of everything that we do. We believe these are the fundamentals to ensure we are delivering what’s expected of us in the best way possible for ourselves and for those around us

Benefits

We offer a competitive salary package and benefits, along with a dynamic and collaborative work environment. Your work with us will make an impact and your voice will be heard. We are a diverse team with a strong work ethic and plenty of hunger to win. We have designed our benefits offering around Health, Wealth, Lifestyle and Development.

These include:

• Stock options which vests over 4 years
• Pension scheme - An impressive pension scheme via Aviva. We will match 6% if you choose the same
• Health insurance
• Fresh fruit and snacks provided in the office everyday! (tea, coffee, soft drinks also included)
• We’re a member of a cycle‑to‑work scheme
• We want to continue to invest in all our employees and do so by providing a £1000 yearly education budget that can be used on courses, conferences, books or training
• 25 days paid holiday + bank holidays to enjoy - you have the choice to carry over 5 days to the next year!
• Flexible working - we want to provide a hybrid model approach to working and provide you with 2 days a week working from home
• 20 days a year of global working - we provide the ability to work from anywhere in the world for up to 20 days a year
• We will provide you lunch everyday in the office - you don’t need to worry about feeding your belly as we have it sorted with top quality food served by our in‑house Chef Alex!

What happens next

We aim to have a simple and speedy hiring process and we want to make sure that we are right for you as much as the other way around.

• CV application review - We will review it as quickly as possible
• Let’s chat - Quick chat with our team about your experience and the role
• Experience and Mindset Chat - with the Hiring Manager
• Technical Interview - Live Coding Pair Programming + System Design Interview
• In Office Interview - LT chat + Lunch with other colleagues in the team