Software Engineer - Core IP Security

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we’re building a world-class platform to amplify our teams' most powerful ideas. Security is foundational to this mission and must be delivered in a way that supports how our engineering teams build and operate complex systems at scale. Take the next step in your career.

Key responsibilities

• Designing and implementing high-assurance security systems to protect sensitive and valuable intellectual property
• Developing and maintaining cryptographic key management services, access-control policies and shared security libraries
• Building and evolving access control, classification and risk-reporting systems to support governance and auditability
• Developing APIs and integrations that embed security controls into the wider engineering platform
• Contributing to detection and scanning capabilities to identify protected assets and validate controls
• Operating and hardening security-critical infrastructure, including physical server environments with dual-control operational procedures
• Participating in disaster recovery planning, testing and execution for critical security systems
• Identifying opportunities to simplify, replace or rebuild existing systems when better approaches are available

Who are we looking for?

A group of engineers who combine strong software development skills with an interest in security, cryptography and high-integrity systems. You should be comfortable working across the full stack, from service backends and APIs to cryptographic libraries and infrastructure automation in a collaborative, fast-moving environment. The ideal candidate will have the following skills and experience.

Essential:

• Strong experience delivering production-quality software, ideally using C#/.NET
• Strong understanding of software architecture, concurrency, distributed systems and API design
• Experience building or operating security-sensitive systems where correctness and auditability are critical
• Sound engineering judgement, balancing security, performance, reliability and delivery
• Clear communication skills and a collaborative, pragmatic approach
• Experience with modern development practices, including CI/CD, code review and automated testing

Highly desirable:

• Experience with cryptography, key management or security-sensitive infrastructure
• Experience with hardened environments, operational controls or shared security components
• Familiarity with access control, identity management or approval workflow engines
• Strong Linux, infrastructure automation and Kubernetes experience, including infrastructure as code and observability tooling
• Full-stack development experience for internal tools and dashboards

Nice to have:

• Experience with Python, TypeScript, Go or Rust
• Exposure to threat modelling, remediation or security architecture reviews
• Experience in regulated or security-conscious environments
• Familiarity with Git internals, self-hosted Git platforms or source code management security

Why join us?

• Highly competitive compensation plus annual discretionary bonus
• Lunch provided via Just Eat for Business and dedicated barista bar
• 35 days' annual leave
• 9% company pension contributions
• Informal dress code and excellent work-life balance
• Comprehensive healthcare and life assurance
• Cycle-to-work scheme
• Monthly company events

G-Research is committed to cultivating and preserving an inclusive work environment. We are an ideas-driven business and we place great value on diversity of experience and opinions. We want to ensure that applicants receive a recruitment experience that enables them to perform at their best. If you have a disability or special need that requires accommodation please let us know in the relevant section.

At G-Research, we are passionate about the intersection of finance, technology, and the future. We offer a dynamic, flexible and highly stimulating culture where world-beating ideas are cultivated and rewarded. We are proud to employ some of the best people in their field and to nurture their talent in our collaborative working environment.