Senior Developer (Contentful)

Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values -driven culture, international careers and the chance to shape the future of experience. The opportunity At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries. We are proud of: • The work we do and the innovation we drive • Our values of share, care a nd dare • A workplace culture that fosters creativity, diversity and autonomy • Our borderless, global framework, which enables seamless collaboration The role We are looking for an experienced, hands-on Senior Developer to support the migration of an enterprise digital platform from Sitecore to Contentful. The role involves both content migration and the migration of existing applications, React/Typescript development, API integrations and modern headless architectures. We are also looking for someone with an AI-first mindset who embraces AI-assisted and spec-driven development to improve delivery speed, quality and consistency, while retaining ownership of technical judgement and code quality. Key Responsibilities Application and Content Migration • Migrate and modernise existing Sitecore-backed applications to work with Contentful. • Develop, refactor and enhance frontend applications using React and TypeScript. • Replace Sitecore-specific dependencies, components and integrations with Contentful-compatible solutions. • Develop content migration tooling, scripts and automated transformation processes. • Implement Contentful content models, API integrations and content delivery patterns. • Ensure migrated applications maintain functionality, performance, accessibility and quality. AI-Native Engineering • Adopt an AI-first mindset, proactively identifying opportunities to accelerate development, migration and problem-solving using AI. • Apply spec-driven development, using clear technical specifications, acceptance criteria and tests to guide AI-assisted implementation. • Leverage AI to support Sitecore analysis, schema mapping, migration script generation, application refactoring and validation. • Use AI coding assistants effectively while reviewing, testing and taking accountability for generated outputs. • Share AI-enabled development practices and contribute to improving team productivity. Engineering Quality and Collaboration • Independently own complex development tasks and significant migration components. • Write clean, maintainable, well-tested code and contribute to CI/CD and automated testing. • Identify technical risks, dependencies and opportunities for improvement. • Collaborate with Lead Developers, architects, QA and content teams. • Support less experienced developers through mentoring, code reviews and knowledge sharing. Essential Skills and Experience • Strong commercial software engineering experience, particularly with React and TypeScript . • Experience migrating, modernising or refactoring existing frontend applications. • Practical experience with headless CMS platforms, preferably Contentful, and an understanding of Sitecore. • Strong understanding of APIs, integration patterns and content modelling. • Experience with backend development, migration scripting or data transformation. • Practical experience using AI-assisted development tools and an understanding of spec-driven development approaches. • Experience with automated testing, CI/CD and modern engineering practices. • Ability to work independently, solve comp