Software Engineer (London)
Ansatz Capital · London, London
Software Engineer (London) at Ansatz Capital, based in London, London. This is a permanent role.
- Salary
- Competitive
- Location
- London, London
- Contract
- Permanent
- Posted
- 3 days ago
- Closes
- 17 Nov 2026
- Sector
- Software Developer
Reference cfe90d2c-b4c5-4200-80a2-d9f7c3b1ccd4
About the role
We are looking for a software engineer to join a lean and technical quantitative trading startup. You’ll be responsible for developing and maintaining scalable trading applications and infrastructure for many financial markets and assist with developing the full stack of infrastructure to support trading operations. The role is fast paced, with daily or even more frequent release cycles, and requires a good sense of prioritization between longer and shorter term needs.
Within our systems, from hardware drivers to TCP/multicast handlers to Python interfaces, each layer requires custom optimization for latency, bandwidth, or both. An understanding of trade-offs in terms of clock cycles and CPU cache effects is a must. Multi-core/multi-threaded communications using lock-free algorithms will be employed to increase the theoretical computational limit per unit time; consequently, the candidate should have a good grasp of run-time behavior, serialization delays, and asymptotic behavior in this environment. Compensation consists of base salary, discretionary performance bonus, and possible participation in longer-term incentive schemes.C++11 and higher experience Excellent design and debugging skills Experience developing for production critical systems Excellent communication and prioritization skills Linux shop running modern kernels C++20 codebase, Python layer on top Technical expertise throughout (everyone programs) Cloud-scalable research infrastructure Experience with Python Experience with x86 hardware Experience with performance engineering Understanding of Intel Xeon pipelining and cache behavior Experience with the TCP networking stack Experience optimizing Linux kernels / using kernel-bypass networking Experience leveraging AWS or similar cloud infrastructure Catered meals and bountiful snacks Generous budget for home office equipment Health / pension Fitness and wellness benefits Base compensation: £150,000-200,000 with additional discretionary annual performance bonus
Within our systems, from hardware drivers to TCP/multicast handlers to Python interfaces, each layer requires custom optimization for latency, bandwidth, or both. An understanding of trade-offs in terms of clock cycles and CPU cache effects is a must. Multi-core/multi-threaded communications using lock-free algorithms will be employed to increase the theoretical computational limit per unit time; consequently, the candidate should have a good grasp of run-time behavior, serialization delays, and asymptotic behavior in this environment. Compensation consists of base salary, discretionary performance bonus, and possible participation in longer-term incentive schemes.
Skill Requirements
Technical Details About Us
Desirable Skills
Benefits
Reference: cfe90d2c-b4c5-4200-80a2-d9f7c3b1ccd4 · Posted 3 days ago · Closes 17 Nov 2026 · Listed via Ansatz Capital
Know someone who'd be great for this?
Get a shareable card
Apply for this job
This role is listed via Ansatz Capital. Applications are handled on the employer's site.
Apply on employer siteOpens the employer's website in a new tab.
Safe applying: a genuine employer will never ask you to pay for a DBS check, training or equipment, or move you onto WhatsApp before you are hired. If this listing does, report it and do not pay anything.