Top Tech Jobs & Startup Jobs in London

Design, implement and maintain large-scale, secure data systems and pipelines across hybrid cloud environments. Optimize and troubleshoot big data platforms and orchestration tools, support ML/AI workloads, ensure GDPR/privacy compliance, perform integration testing, and support mission-critical cyber and intelligence programmes.

Design, deploy, and maintain Elastic Cloud Enterprise environments; build secure, scalable Elasticsearch solutions for observability and search; optimize cluster performance; implement indexing and storage strategies; automate operations and integrate Elasticsearch with DevOps, Security, and Development teams; produce technical documentation and drive continuous improvement.

Lead design, development, deployment and maintenance of critical software systems. Own team deliverables, collaborate with product, frontend and QA, mentor junior engineers, and work across the full SDLC with CI/CD, containerisation and cloud platforms to deliver scalable, high‑quality solutions in an agile environment.

Lead design, development, and maintenance of scalable software systems. Provide technical leadership across multiple teams, act as prime technical contact, collaborate with customers and partners, mentor engineers, and contribute to architecture, delivery planning, and DevOps practices.

Work with stakeholders to gather, analyse and document business and technical requirements, produce high-quality documentation, support delivery of complex defence programmes, collaborate with developers, testers and systems engineers, facilitate stakeholder engagement, and evaluate solutions recommending process or system improvements.

Lead Business Analyst embedded in agile software delivery teams to elicit, analyse and document business and technical requirements; support Product Owners with backlog prioritisation; facilitate stakeholder workshops; apply systems thinking to improve processes; evaluate delivered solutions and recommend enhancements in Defence/security contexts.

Design, develop and maintain mission-critical software; contribute to codebase and peer reviews; influence architecture and break down work for Agile delivery; support CI/CD pipelines, containerised deployments and cloud platforms; demonstrate progress to stakeholders and collaborate across engineering teams.