Senior Full-Stack Engineer (Python/React)

Job Description WPP is the trusted growth partner for the world's leading brands. We unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company – powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth. We have been building the world's most valuable brands for 50 years and have global reach across 100+ markets, with deep local expertise. Our people are the key to our success. We're committed to fostering a culture of creativity, belonging and continuous learning, attracting and developing the brightest talent, and providing exciting career opportunities that help our people grow. For more information, visit WPP.com. Why we're hiring: WPP Enterprise Technology delivers IT services across the WPP group — enabling the world's most creative brands to co We are looking for a seasoned full-stack engineer who enjoys systems design, integration complexity, and intelligent workflow automation. You will join our Global Automation & Business Platforms programme and take ownership of designing, building, and refining production-grade solutions — both as standalone products and as integrations within our core Hero portfolio. Day-to-day you will architect event-driven pipelines, build Python and React services, wire together enterprise APIs, and make smart engineering decisions on frameworks and data models. What you'll be doing: Solution Design & Delivery - Design and develop full-stack solutions (Python back-end, React front-end) that integrate with portfolio products or run as standalone platforms. - Architect service-to-service integration patterns: synchronous APIs, event queues, webhook pipelines, and scheduled batch processes. - Build and maintain FastAPI services with clear contracts, versioning, and observability from day one. Workflow & Automation Engineering - Implement sophisticated multi-step automation workflows that coordinate actions across enterprise systems — document management, CRM, HR, finance, and media platforms. - Build integrations between internal data sources, third-party APIs, and cloud platform services (Azure, GCP). Quality, Governance & Documentation - Build evaluation and testing frameworks so that every automated workflow is measurable, auditable, and improvable. - Work closely with the Engineering Lead to define governance standards: access control, audit logging, safe defaults, and compliance guardrails. - Maintain thorough technical documentation — architecture diagrams, runbooks, API specs, and decision records. Collaboration - Operate within an Agile Kanban team, taking stories from backlog refinement through to production deployment. - Act as the technical bridge between business stakeholders and engineering: translating requirements into pragmatic designs and communicating trade-offs clearly. - Support other automation delivery teams across WPP with technical guidance and code reviews. What you'll need: Essential - 7–9 years of professional software engineering experience, with Python as the primary back-end language. - Strong React / TypeScript front-end skills — you can build and own the full vertical, not just the API layer. - Solid FastAPI or equivalent Python API framework experience; you know how to structure a production service. - Proven experience designing and operating event-driven or pipeline architectures (queues, schedulers, webhooks, streaming). - Comfortable working across cloud platforms — Azure and/or GCP — including managed services for compute, storage, and messaging. - Experience integrating with enterprise identity, directory, and SaaS APIs (Microsoft 365 ecosystem is a strong advantage). - Hands-on experience building search or retrieval-augmented systems: embedding pipelines, vector databases, semantic indexing. - Solid understanding of evaluation and testing practices for complex, non-deterministic systems. - Agile practitioner — comfortable in Kanban or Scrum, familiar with backlog management, sprint ceremonies, and incremental delivery. - Excellent written and verbal English; you document your work and communicate clearly with both engineers and non-technical stakeholders. Nice to Have - Familiarity with Microsoft Copilot Studio or Power Platform. - Exposure to enterprise-grade governance patterns: RBAC, audit trails, policy-as-code. Certifications Mandatory (required In First 30 Days) - Microsoft Azure AI Engineer Associate (AI-102) Desirable / Required Within 3 Months - GitHub Copilot (GH-300) - Microsoft Power Platform Fundamentals (PL-900) Who you are: You're open:We are inclusive and collaborative; we encourage the free exchange of ideas; we respect and celebrate diverse views. We are open-minded: to new ideas, new partnerships, new ways of working. You're optimistic: We believe in the power of creativity, technology and talent to create brighter futures or our people, our clients and our communities. We approach all that we do with conviction: to try the new and to seek the unexpected. You're extraordinary: we are stronger together: through collaboration we achieve the amazing. We are creative leaders and pioneers of our industry; we provide extraordinary every day. What we'll give you: Passionate, inspired people – We aim to create a culture in which people can do extraordinary work. Scale and opportunity – We offer the opportunity to create, influence and complete projects at a scale that is unparalleled in the industry. Challenging and stimulating work – Unique work and the opportunity to join a group of creative problem solvers. Are you up for the challenge We believe the best work happens when we're together, fostering creativity, collaboration, and connection. That's why we've adopted a hybrid approach, with teams in the office around four days a week. If you require accommodations or flexibility, please discuss this with the hiring team during the interview process. WPP is an equal opportunity employer and considers applicants for all positions without discrimination or regard to particular characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers. Please read our Privacy Notice (https://www.wpp.com/en/careers/wpp-privacy-policy-for-recruitment) for more information on how we process the information you provide.