Senior Developer (Contentful)

Valtech; Polska; Híbrido; PLN 180.000 - 280.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Remote and hybrid work options (Poland

Medical insurance

Learning & development programs

Descripción de la vacante

Valtech Poland is seeking an experienced Senior Developer to migrate an enterprise platform from Sitecore to Contentful and to continue modernising frontend applications with React and TypeScript. The role emphasizes AI-assisted development, API integrations, and headless CMS expertise across multilingual, multisite deployments.

You will own complex migration components, contribute to CI/CD and testing, and collaborate with architects and content teams to deliver scalable digital experiences.

Formación

• Strong commercial software engineering experience with React and TypeScript.
• Experience migrating, modernising or refactoring frontend applications.
• Practical experience with headless CMS platforms (Contentful) and understanding of Sitecore.
• Strong understanding of APIs, integration patterns and content modelling.
• Experience with backend development, migration scripting or data transformation.
• Experience using AI-assisted development tools and spec-driven development approaches.
• Experience with automated testing, CI/CD and modern engineering practices.

Responsabilidades

• Migrate Sitecore-backed applications to Contentful and modernise frontend.
• Develop, refactor and enhance frontend applications using React/TypeScript.
• Replace Sitecore-specific dependencies with Contentful-compatible solutions.
• Develop tooling for content migration and automated transformations.
• Implement Contentful content models and API integrations.
• Ensure migrated apps meet functionality, performance, accessibility and quality.
• Apply an AI-first mindset to accelerate development and migration.
• Utilise AI coding assistants with responsible review and testing.

Conocimientos

React

TypeScript

AI-assisted development

Headless CMS

Herramientas

Contentful

Sitecore

Next.js

CI/CD

Descripción del empleo

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 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.
• 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 complex problems and influence technical implementation decisions.
• Direct experience migrating Sitecore applications and content to Contentful.
• Experience with Next.js, Sitecore JSS or CMS/DXP replatforming.
• Experience applying AI to content analysis, migration automation, code transformation or test generation.
• Experience with multilingual, multisite or composable digital platforms.

If you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn.

Commitment to reaching all kinds of people

We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. Explore our Diversity & Inclusion site to see how we’re creating a more equitable Valtech for all.

The benefits

This is a position based inPoland.

Mental and physical health:

• 24 working days of paid vacation
• National holidays covered
• Sick leave (up to 20/year)
• Unpaid leave (up to 20/year)
• Medical insurance
• Multisport card OR Multikafeteria
• Maternity & paternity leave support

Personal and professional development:

• Internal workshops & learning initiatives
• Professional certifications reimbursement
• Participation in professional local & global communities
• Growth Framework to manage expectations and define the steps to move towards the selected career
• Mentoring program with the ability to become a mentor or a mentee to grow to a higher position

Valtech Poland has a system of progressive benefit packages –the longer you stay with the company, the more benefits you get!

Beyond a competitive compensation p ackage, we offer:

• Flexibility, with remote and hybrid work options (country-dependent)
• Career advancement, with international mobility and professional development programs
• Learning and development, with access to cutting‑edge tools, training and industry experts

Your application process

Once you apply, our Talent Acquisition team will review your application. Your CV should cover key information on relevant experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application. We review all candidates based on skills, experience, and potential.

We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know.

About Valtech

Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world.

At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more.

At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate.

Are you ready to create what’s next? Join us.

Our goal at Valtech is to unlock a better way to experience the world - for everyone. We want to create an equitable, engaged and innovative workplace which gives people from all backgrounds the support they need to thrive and grow.

To do this, a crucial part of this work is having an understanding of who applies to work with us. To gather this insight, we’re sharing an optional voluntary form with you, where you can share your gender identity with us, alongside a "prefer not to say" option.

This demographic survey will help us better understand the people who apply to work at Valtech. It'll help us see how different groups progress through our hiring process, and where we need to make improvements to be more inclusive. Your responses will be used by Valtech Diversity & Inclusion team for aggregated statistical reporting and will not be used to assess your application or influence hiring decisions.

If you choose to fill it out, all of the information you give us is Voluntary and based on your consent under applicable data protection laws. It is entirely your decision whether or not to respond to our survey, and it will have no impact on your candidacy at Valtech. If you decide you do not wish to respond, we've included a "prefer not to say" option.

• For more information on how we'll use this data, please read our Privacy Notice for recruitment.

By filling out this survey, you agree that we can use your responses for the purposes we’ve mentioned above.