Core IP Security Software Engineer

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.The roleThe Core IP Security team designs, builds and operates the bespoke security systems that protect the firm’s most sensitive intellectual property across its full lifecycle, from research through to production systems.Our systems are purpose-built for highly sensitive environments and include cryptographic key management, encrypted source code and document hosting, access control and approval workflows, classification and risk-reporting, and detection and scanning tools.As a Software Engineer, you will take ownership of designing, developing and operating these systems across service backends, cryptographic libraries, API integrations and hardened infrastructure. The software you build must meet the highest standards of correctness, auditability and availability.You will work on both new capabilities and improvements to existing systems, partnering closely with research stakeholders to deliver effective security controls that support workflows without creating unnecessary friction.This is a hands-on role with significant autonomy in a small, focused team where every engineer has a meaningful impact.Key responsibilities Key responsibilities of the role include:Designing and implementing high-assurance security systems to protect sensitive and valuable intellectual propertyDeveloping and maintaining cryptographic key management services, access-control policies and shared security librariesBuilding and evolving access control, classification and risk-reporting systems to support governance and auditabilityDeveloping APIs and integrations that embed security controls into the wider engineering platformContributing to detection and scanning capabilities to identify protected assets and validate controlsOperating and hardening security-critical infrastructure, including physical server environments with dual-control operational proceduresParticipating in disaster recovery planning, testing and execution for critical security systemsIdentifying opportunities to simplify, replace or rebuild existing systems when better approaches are availableWho are we looking for We are looking for an engineer who combines 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#/.NETStrong understanding of software architecture, concurrency, distributed systems and API designExperience building or operating security-sensitive systems where correctness and auditability are criticalSound engineering judgement, balancing security, performance, reliability and deliveryClear communication skills and a collaborative, pragmatic approachExperience with modern development practices, including CI/CD, code review and automated testingHighly desirable:Experience with cryptography, key management or security-sensitive infrastructureExperience with hardened environments, operational controls or shared security componentsFamiliarity with access control, identity management or approval workflow enginesStrong Linux, infrastructure automation and Kubernetes experience, including infrastructure as code and observability toolingFull-stack development experience for internal tools and dashboardsNice to have:Experience with Python, TypeScript, Go or RustExposure to threat modelling, remediation or security architecture reviewsExperience in regulated or security-conscious environmentsFamiliarity with Git internals, self-hosted Git platforms or source code management securityWhy join us Highly competitive compensation plus annual discretionary bonusLunch provided via Just Eat for Business and dedicated barista bar35 days’ annual leave9% company pension contributionsInformal dress code and excellent work-life balanceComprehensive healthcare and life assuranceCycle-to-work schemeMonthly company eventsG-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 sectionSummaryLocation: London, UKType: Full time