Senior Software Engineer
G MASS are currently looking for an experienced Software Engineer to join a leading Investment Manager client on an initial 6-month engagement. This role sits within a core engineering team at the centre of a highly quantitative investment environment, supporting the technology and data platforms that underpin systematic trading strategies and advanced research. You will be working in a fast-paced, data-driven environment where engineering plays a critical role in enabling investment teams to access, process and utilise large volumes of market and research data.
Responsibilities:
- Design, develop and enhance large-scale data and infrastructure platforms supporting trading and research.
- Build and maintain systems capable of processing large volumes of data from numerous global sources.
- Work closely with researchers, traders and engineers to ensure platforms effectively support investment workflows.
- Contribute to improving the scalability, performance and reliability of distributed systems.
- Develop and maintain services primarily using Java and Python.
- Work across modern data and messaging technologies including Kafka, ArcticDB and MongoDB.
Requirements
- Degree in a quantitative/technical field (e.g. Computer Science, Mathematics, Engineering or Physics)
- 5+ years’ software engineering experience using Java or Python
- Strong Linux and Git knowledge
- Experience with modern databases (e.g. Postgres, MongoDB or similar)
- Strong problem-solving skills and attention to detail
- Able to work independently and collaborate with stakeholders
Nice to have
- Exposure to distributed systems
- Open-source contributions
- Familiarity with LLMs / AI tooling
Benefits
Salary: up to £100k
Length: initial 6 months, with a view to being made permanent with the client
Recommended Jobs
Year 3 Teacher | Lambeth
A popular primary school in Lambeth is seeking an energetic Year 3 Teacher to join the Key Stage 2 phase from January 2026. The successful Year 3 Teacher will plan and deliver carefully sequenced les…
Head of Social & Channel Production
Job Overview We’re entering the next era of brand building. Where social-first moves beyond a buzz-word to a living breathing and prioritized operational model. It’s where culture forms, demand…
Senior Sous - West End Restaurant
The role of Senior Sous Chef This is a fantastic opportunity for a Senior Sous Chef to work within this well-respected and successful Founder led restaurant in Central London. As Senior Sous Ch…
Chief Financial Officer (CFO)
TradingView is the world’s largest financial analysis platform with more than 100M users across 180+ countries. We build tools that help traders and investors make informed decisions — from advanc…
People Policy Advisor
People Policy Advisor Uxbridge £38,073 - £40,194 per annum Full time | 36 hours per week Are you an HR professional who enjoys shaping people policies, improving employee experience, and m…
Romford Market Digital Communications Officer
Job Category : Management Location : London Borough of Havering Hours Per Week : 36.00 Start Date : Immediate Start Start Time : 09:00 End Time : 17:00 Salary: £275.00 per day Thi…
Welfare Officer - Outstanding Secondary School -...
Welfare Officer – Outstanding Secondary School – Haringey, North London Start Date: As soon as possible Contract: Full-time, Permanent Salary: Paid to scale An outstanding secondary sc…
Finance Manager - Primary School, Haringey
Finance Manager – Primary School, Haringey Location: Haringey, London Contract: Full-Time, Permanent Start Date: January 2026 Salary: Competitive (Dependent on experience) About the …
Patient Pathway Administrator - Ophthalmology Centre
About the department Our new Ophthalmology Centre is a flagship development within the Welbeck network, purpose built to set a new benchmark for specialist day‑case eye care. It brings together st…
2ic of English - Hammersmith (TLR £5000)
2iC English (Second in Charge) Location: Hammersmith, West London Salary: MPS/UPS (Inner London) + £5,000 TLR Contract Type: Full-Time, Permanent Elevate your leadership career in the he…