Top Tech Jobs & Startup Jobs in London

Lead development of large-scale, real-time and historical market-data applications using KDB/Q. Drive system design, coding, performance optimization, scalability, high availability, and CI/CD automation. Mentor team members, manage delivery, partner with stakeholders and support teams, and help migrate and re-architect systems to AWS while improving operational stability and testing practices.

Lead platform engineering efforts to design, build, and operate Kubernetes-based cloud platform services. Develop secure production code, automate infrastructure and CI/CD, support production (you-build-it-you-run-it), drive reliability and security via IaC and policy-as-code, lead technical evaluations and communities of practice, and champion responsible AI-assisted engineering practices.

Support external reporting for Equities Product Control by designing and maintaining controls, reconciling trading positions and balances, investigating data mismatches, driving process improvements and automation (Alteryx), supporting audits, and collaborating with trading, treasury, operations and finance teams.

Lead platform engineer driving cloud-native microservices, developer experience tooling, IaC, CI/CD migrations, and adoption of AI-assisted engineering. Designs architectures, writes secure production code, troubleshoots systems, and mentors teams to improve reliability and delivery.

Support the Treasury Wind Down team by preparing analyses and automating processes for orderly wind down of trading and derivatives. Contribute to Resolution Financial Analytics, prepare regulatory submissions, refine methodologies, and develop stakeholder materials. Collaborate with SMEs and technology partners to enhance regulatory readiness and deliver high-quality analytics for US and EMEA recovery planning.

Lead development of the QES trading platform: design, build, test, and maintain production-grade software. Collaborate with front office (trading, structuring, research), deliver secure high-quality code (Python/Java/TypeScript/React), automate operational remediation, and lead agile engineering practices and communities of practice.

Lead architecture and roadmap for platform engineering; mentor engineers; design and deliver secure, scalable cloud-native infrastructure; ensure production stability (You Build It, You Run It); automate operations and implement DORA/SLIs/SLOs; drive FinOps and performance tuning; adopt and govern agentic AI-enabled engineering workflows with security and validation guardrails; collaborate with product, business, and security stakeholders.

Lead backend engineering efforts to design, build, and operate scalable, reliable, and secure cloud-native services using JVM languages. Drive domain modeling, performance optimization, zero-downtime releases, incident remediation, automated testing, and adoption of approved AI-assisted engineering practices while mentoring teammates and promoting reusable patterns.

Design, develop, deploy, and maintain advanced AI products and data pipelines. Collaborate with engineers, data scientists, and product owners to deliver production-grade, secure, scalable code. Architect AI-enabled engineering workflows, improve SDLC automation, ensure compliance, and provide technical leadership and architecture governance.

Lead DevSecOps architecture for CI/CD pipelines and cloud-native applications: embed automated security controls, champion IaC and policy-as-code, run threat modeling and architecture reviews, deploy preventive/detective guardrails, support audit/regulatory needs, and enable security-first culture using enterprise AI-assisted tooling.