Top Tech Jobs & Startup Jobs in London

Design, build and maintain scalable Salesforce Loyalty Cloud solutions. Lead development of member lifecycle, promotions, rewards processing and personalised experiences. Implement integrations via REST APIs and Platform Events. Collaborate with architects and product teams, champion code quality, observability, CI/CD and engineering best practices within Agile, cross-functional teams.

Lead design and development of scalable full‑stack solutions for Warehouse Continuity in Supply Chain. Provide technical leadership, architecture, code reviews, mentorship, DevSecOps adoption, observability, and modernisation of integrations and legacy systems while collaborating with product and business stakeholders to ensure performance, security, and operational excellence.

Lead and manage engineering teams responsible for business-critical in-store payments and infrastructure. Drive engineering excellence, reliability, vendor management, modernisation, and delivery across complex, hardware-integrated retail systems while remaining hands-on to resolve production issues.

As a Principal Engineer at M&S, you'll drive technical strategy, influence architecture, and mentor engineers while delivering on personalization, search, and machine learning features in collaboration with cross-functional teams.

Lead technical design and delivery of supply chain and warehouse software at scale. Drive architecture, DevOps, observability, reliability and performance practices; mentor senior engineers; influence product and technology strategy; promote clean code and engineering excellence across teams; support recruitment and outreach.

Lead and manage a software engineering team to deliver scalable, reliable commercial trading and planning solutions. Provide technical direction, ensure operational stability, enforce engineering standards, manage vendors, and drive delivery excellence across cloud-native systems.

Lead a multidisciplinary engineering team to design, build, release, and run international pricing platforms. Ensure operational stability, deliver high-quality cloud-first solutions, drive engineering excellence, DORA standards, and cross-functional requirements like security and performance. Partner with Product and Delivery to meet business goals and enable scalable pricing across international markets.

Manage a software engineering team, oversee Agile project delivery, provide technical leadership, ensure quality standards, and mentor engineers.

Handle escalated customer queries and complaints via phone, email and web chat; investigate issues by liaising with stores, suppliers and teams; deliver clear written responses, aim for first-time resolution, and provide insight to influence business decisions.

Support supply chain transformation by providing data-driven analysis and modelling to design resilient, cost-effective logistics networks across distribution, fulfilment and transport. Create network blueprints, business cases, identify performance improvements, and collaborate with operations and 3PLs to deliver network design initiatives.