Top Tech Jobs & Startup Jobs in London

Design, build, test, and maintain scalable full-stack web applications and integrations using Java, Python, and React. Implement AI-enabled features, event-driven data pipelines, and marketing integrations (CDP/CRM/CMS). Improve code quality via AI-assisted tools, CI/CD, observability, and security/compliance best practices while collaborating with product, marketing, and partners.

Lead design, development, and delivery of risk, pricing, trade capture, and commodities operations software. Collaborate with trading, quant, sales, and middle office to produce secure, high-quality production code, provide technical guidance, and drive product and architecture decisions. Promote cross-team collaboration, firmwide engineering practices, and mentor engineers to deliver scalable solutions.

Leads EMEA cyber threat intelligence by identifying and assessing global threats, analyzing intelligence, supporting incident response, and advancing threat detection and response strategies. Develops policies, frameworks, and operational plans; prioritizes intelligence streams; allocates resources; supports brand protection, fraud prevention, and malware analysis; and communicates findings to technical and senior business stakeholders. Uses AI and LLM tools to improve team efficiency.

Lead design and delivery of production-grade AI/ML solutions for Market Operations. Manage a team of data scientists and partner with engineering and business stakeholders to build, deploy, monitor, and govern models, establish best practices, and drive measurable operational impact.

Develop and troubleshoot secure, scalable Java applications in an agile environment. Design and implement solutions using Spring, Spring Boot, REST services, databases, and modern software development practices. Create architecture and design artifacts, investigate system logs, maintain production code, analyze data for reporting and continuous improvement, and support application resiliency, security, testing, and operational stability.

Lead design, build, and maintain large-scale, secure data engineering solutions. Produce and review production code, improve operational stability, drive AI-assisted engineering adoption, evaluate vendors, and shape technical strategy and team culture.

Lead EMEA strategy and execution for Trade & Working Capital, driving regional growth initiatives, performance management, financial oversight, governance, risk mitigation, and cross-functional programs while enabling sales execution and developing talent.

Advise J.P. Morgan International Consumer Bank on tax risks across retail banking, asset and wealth management. Understand products, global tax regimes, communicate risks to non-tax colleagues, escalate issues, support HMRC audits, collaborate with external advisors and global corporate tax and non-tax teams.

Design, build, test, and deploy scalable AI services integrated with operational systems. Develop Python services, REST APIs, ETL/data pipelines, IaC, and monitoring; collaborate with AI specialists and operations stakeholders to improve workflows, controls, and production readiness in Markets Operations.

Lead SecOps and vulnerability management architecture: design and scale SIEM, SBOM, VM platforms, SOAR playbooks, and detection logic; drive threat modeling, incident escalation, automation, AI-assisted validation, and regulatory/audit support across cloud and product teams.