Top Tech Jobs & Startup Jobs in London

Build and mature security engineering capabilities for cloud-native, regulated trading systems. Design security controls, AI security guardrails, CI/CD and infrastructure-as-code checks, monitoring, incident response, resilience processes, and compliance documentation. Conduct risk assessments, remediate findings, support regulatory audits, and partner with engineering teams to embed security ownership. The role requires hands-on cloud, container, application security, automation, and DevSecOps expertise, with familiarity with CFTC safeguards expectations.

Leads Smarkets’ global commercial and marketing strategy across brand, acquisition, retention, and multiple markets. Owns the marketing budget, ROI, performance marketing, lifecycle strategy, positioning, team development, and growth metrics including CAC, LTV, ROAS, and payback. Partners with product, trading, data, and executive teams to scale a direct-to-consumer brand efficiently.

Lead the design, development, and optimization of scalable backend services in Python and Rust. Architect distributed systems, improve reliability through monitoring and alerting, enforce testing and CI/CD best practices, and contribute to backend architecture decisions. Collaborate with product and engineering teams on complex projects, mentor engineers, and ensure the performance and stability of critical platform services.

Design, develop, and maintain services for Smarkets, implement monitoring, ensure code quality, mentor teammates, and collaborate on projects.

Lead and build Smarkets' security engineering and DevSecOps program for cloud-native trading systems, ensuring regulatory compliance (CFTC), secure SDLC adoption (SAST/DAST/SCA), infrastructure hardening (AWS/Azure/GCP, Kubernetes, IaC), incident response, monitoring, and security automation while engaging with executives, board, and regulators.

Design, build and maintain responsive, high-performance web and mobile interfaces using React/React Native and TypeScript. Collaborate with Product and Design, translate Figma prototypes, implement monitoring/error tracking, write tests, review code, and improve CI/CD and engineering practices to deliver polished user experiences.