Senior Software Engineer

Hybrid (2-3 days onsite, Central London) | £75,000 - £85,000 + benefits

A high-growth technology company operating at the intersection of real‑time data, analytics, and cutting‑edge product development is entering an ambitious expansion phase and is looking to hire a Senior Software Engineer to play a key role in its next stage of growth.

This is an opportunity to work on mission‑critical, real‑time systems used at scale, with genuine ownership across architecture, development, and delivery. The role is hands‑on, commercially focused, and suited to someone who enjoys solving complex technical problems in a fast‑moving environment.

• Building and evolving high‑performance, real‑time platforms that process and deliver live data
• Developing production‑grade systems end‑to‑end, from requirements and design through to deployment and support
• Working across modern backend and frontend technologies, contributing to system architecture and scalability
• Collaborating closely with product and commercial stakeholders to deliver features that matter
• Supporting live systems, including participation in an out‑of‑hours support rota

• Backend & Frontend:
  Python, Type Script, Golang, Node.js, JavaScript, React
• Data:
  Postgre
  
  SQL and No
  
  SQL databases
• Cloud & Dev Ops: AWS, CI/CD pipelines, Terraform (desirable)
• Tooling:
  Git Hub, Slack, Trello, Notion

Experience with real‑time systems (such as betting, trading, finance, or high‑throughput data platforms) is highly advantageous, as is any exposure to data science, machine learning, or wearable/sensor technologies.

• 5+ years' experience in commercial software development
• Strong system design skills and the ability to work within a wider architecture
• A delivery‑focused mindset with high standards for quality and reliability
• Comfortable working in both project delivery and live support environments
• Able to communicate complex ideas clearly to technical and non‑technical audiences
• Self‑motivated, adaptable, and confident taking ownership

• Hybrid role with 2-3 days per week onsite in a Central London office
• Full‑time, permanent position
• Competitive salary £75k-£85k, depending on experience
• 25 days holiday, contributory pension, and the chance to grow with a scaling business

If you're a senior engineer who enjoys real‑world impact, technical depth, and ownership, this is a role worth exploring.