Top Tech Jobs & Startup Jobs in London

Senior technical leader responsible for designing and implementing enterprise cybersecurity architecture. Develop multi-year roadmaps, create secure application and infrastructure frameworks, build proof-of-concept security code, drive reusable zero-trust patterns, advise stakeholders, and lead teams to align security strategy with business and regulatory requirements.

Lead and line-manage a squad of engineers to design, implement and operate payments-related microservices on cloud. Hands-on coding, code reviews, mentoring, and collaboration with product and senior engineers. Drive CI/CD, automated testing, system health metrics, and adoption/governance of enterprise AI-assisted engineering practices with a focus on secure, compliant, and measurable outcomes.

Lead data scientist delivering end-to-end analytics and cloud-native microservices. Collaborate with stakeholders, perform ad hoc and customer analytics, automate processes with engineers, create visualizations, and identify opportunities to improve product and business outcomes.

Join the Telecoms Equity Research team to build and maintain financial/valuation models and industry databases, write research reports and thematic pieces, communicate insights to institutional clients, and support senior analysts in sector coverage and client engagement.

Lead delivery of the enterprise martech stack (CDP, orchestration, personalization, adtech) across markets. Define vision and roadmap, manage product teams, partner with engineering/data/privacy, oversee vendor integrations, measure KPIs and ROI, and drive adoption in a regulated fintech environment.

Lead backend engineering work using JVM languages to design scalable, reliable, secure, cloud-native, multi-cloud solutions. Drive domain modeling, performance optimization, zero-downtime releases, incident resolution, and operational excellence. Champion adoption and governance of enterprise-authorized AI-assisted engineering practices and SDLC toolchain automation while coaching teams on responsible, secure AI use.

Conduct accessibility testing across design system components, mobile apps, and websites using assistive technologies; identify WCAG 2.1 and regulatory barriers; document findings with remediation recommendations; collaborate in GitHub, participate in code reviews, and coach teams to build inclusive digital products.

Support global fixed income index research by analyzing large datasets, building quantitative models, managing client projects, maintaining index operations, evaluating performance and market trends, and producing visualizations and reports to inform strategic product decisions.

Design, build, and productionize autonomous and assistive multi-agent AI systems. Implement RAG and semantic search with vector databases, integrate tools/APIs, apply prompt engineering and guardrails, orchestrate microservices workflows, instrument agents for metrics, run evaluations/A-B tests, and mentor teammates.

Lead strategy and delivery of agentic AI across the Commercial & Investment Bank: design, build, and productionize multi-agent systems and RAG pipelines; integrate tools and cloud deployments; implement evaluation, safety, and observability; partner with stakeholders to deliver business impact; and mentor teams on LLMs, agent frameworks, and best practices.