Ansatz Capital Logo

Ansatz Capital

Software Engineer (London)

Reposted 15 Days Ago
Be an Early Applicant
Hybrid
London, Greater London, England, GBR
Mid level
Hybrid
London, Greater London, England, GBR
Mid level
As a Software Engineer, you'll develop low-latency trading applications and infrastructure, focusing on optimization and system performance in a fast-paced environment.
The summary above was generated by AI
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.

Skill Requirements

  • C++11 and higher experience
  • Excellent design and debugging skills
  • Experience developing for production critical systems
  • Excellent communication and prioritization skills

Technical Details About Us

  • Linux shop running modern kernels
  • C++20 codebase, Python layer on top
  • Technical expertise throughout (everyone programs)
  • Cloud-scalable research infrastructure

Desirable Skills

  • 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

Benefits

  • 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

Similar Jobs

2 Days Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Artificial Intelligence • Fintech • Greentech • Sales • Software • Travel • Hospitality
Own feature lifecycle in a cross-functional squad, design scalable systems, set technical standards, lead SRE/observability, mentor engineers, coordinate cross-team initiatives, and drive AI-augmented development workflows.
Top Skills: Ai AgentsAi-Powered Code ReviewApi VersioningCachingCi/CdCypressE2E TestingGitJIRANotionObservabilitySecrets ManagementSlackSlosSre
4 Days Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Design, implement, and operate discoverability and search features for the AISOAR marketplace. Lead end-to-end technical implementations, ensure high availability and security, troubleshoot platform issues, collaborate with customers and security partners, use observability tools, drive platform improvements, and participate in monthly on-call rotation.
Top Skills: AIAWSCassandraEdrGCPGoGrafanaGraphQLJSONKafkaKubernetesLogscale (Humio)OauthOpensearchPostgresPythonRestXdr
4 Days Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Build and scale cloud-native backend services for a global detection-engine platform. Design high-performance, resilient distributed systems, collaborate across teams, mentor engineers, and drive testing, CI, and AI-enhanced detection workflows at internet scale.
Top Skills: AWSAzureC++CassandraDockerElasticsearchGCPGitGo (Golang)KafkaKubernetesRedisScala

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account