Top Tech Jobs & Startup Jobs in London

Join Markets Technology Trading as a Software Engineer II to design, develop, and troubleshoot secure, stable, high-quality Python code. Leverage enterprise AI-assisted development tools, collaborate in an Agile team, handle data processing and production engineering tasks, and apply SDLC practices to build performant, resilient applications while learning domain systems and secure coding standards.

Build and maintain payments metrics, reporting and KPI frameworks to inform product decisions. Translate data into executive-ready narratives, monitor product health, partner with Product, Engineering and Analytics, own end-to-end initiatives and maintain data dictionaries and quality.

Lead end-to-end planning and execution of a complex new product launch: build roadmaps, govern cross-functional workstreams, manage stakeholders and vendors, ensure technical solution assurance and regulatory compliance, mitigate risks, track delivery metrics, and report to senior management.

Lead strategy and roadmap for liquidity products and Smart Order Router (SOR). Drive SOR and internalisation development, venue relationships, performance analysis, and regulatory compliance. Partner with Technology, Quantitative Research, trading, and sales to deliver product enhancements that improve execution quality and client outcomes.

Lead technical contributor on the ETF Technology team delivering secure, scalable Java/Oracle applications. Design, develop, test, and support production systems; partner with product, portfolio management, and platform teams; drive operational stability, automation, and adoption of enterprise AI-assisted engineering practices.

Design, develop, and maintain secure, scalable software solutions as a seasoned agile team member. Produce high-quality production code, architecture/design artifacts, data visualizations, and troubleshooting. Use CI/CD, resilient application patterns, enterprise AI-assisted development tools, and validate AI outputs. Contribute to engineering communities and improve code hygiene and system architecture.

Lead design and implementation of control frameworks for personal investing operations. Identify, assess, and remediate operational and regulatory risks, monitor control effectiveness, produce executive reporting, collaborate with Compliance, Audit, Risk and Technology, and support CORE and control testing activities to ensure regulatory compliance and operational resilience.

Lead end-to-end Payments AI transformation projects: plan, govern, and coordinate delivery with Product, Technology and firmwide stakeholders. Drive cross-functional teams, establish governance, track success metrics, manage risks, and ensure data and solutions are implemented to meet strategic objectives.

Design, build, test, and operate secure full-stack features using Java-based microservices and event-driven architectures. Contribute to system design, debugging, automation, CI/CD, and production stability. Collaborate on architecture reviews, share engineering best practices, and responsibly use enterprise AI-assisted development tools.

Design, develop, and maintain secure, high-quality production code and system architectures. Troubleshoot complex issues, analyze large datasets for improvements, ensure application resiliency and CI/CD practices, and contribute to engineering communities and inclusive team culture.