Fullstack Engineer

WongDoody creates human experiences at 24 studios across 4 continents. We believe the future can be molded. And by shaping human experiences through creativity and tech, we work to build a future we believe in.

For us, this starts with our own culture. We strive to create an inclusive environment where every human can bring their whole self to work. Our clients are brands we believe in, from global big players to local heroes to startups we love. With each of our partners, we embark on a journey of co-creation, pushing the boundaries of what's possible and exploring the space where creativity and tech meet.

Our team of fun, welcoming, values-driven and collaborative problem solvers has one focus at the heart of everything we do: human experience. Human experiences are the touchpoints where brands connect with customers. And we transform businesses by creating engaging, inspiring moments using strategy, creativity, data and technology—all backed by the global technological power of Infosys.

Experience, Tech & AI

We are a cross-unit and cross-location AI, tech and experience team. With more than 50 developers, AI & Fullstack engineers, UX designers and consultants working directly with other WongDoody teams, we are team players and specialists - oth in frontend and backend. As part of Infosys, we belong to a leading global technology company with access to solutions and extensive know-how in the fields of commerce, marketing automation and AI, among others.

We are now looking for a Fullstack Developer (Frontend / API) who combines modern web development with strong system thinking—building performant, user-centered applications across frontend and backend layers.

Our local benefits

Flexible working hours and 100% overtime compensationWork where it works for you. At home or in the office, or any mix you likeWorking for strong brands and clients we believe in30 days vacation per yearCompany BenefitsUrban Sports ClubNice people in welcoming teamsWhat you can expect

Frontend & Experience Development

Build modern, high-performance web interfaces for complex applicationsTranslate UX/UI concepts into scalable frontend architecturesDesign interfaces that make complex AI and agent-driven systems intuitive and usableEnsure consistent, responsive, and high-quality user experiences across devicesContribute to RFPs, pitches, and interactive prototypes API & Backend Integration

Develop and integrate APIs for data- and AI-driven applicationsIntegrate agentic workflows and orchestration layers into usable application logicWork with structured data models, authentication, and interface logic System Thinking & Collaboration

Act as the interface layer between users and agentic systems—making multi-agent workflows accessible and controllableCollaborate closely with Product, Design, AI Engineers, and Solution ArchitectsDesign modular components and reusable system patternsBring structure to technical decisions and reduce system complexityWhat we'd love to see

Several years of experience building modern web applications (frontend + API)Strong proficiency in TypeScript/JavaScript and frameworks like React, Next.js, or VueExperience designing and integrating REST or GraphQL APIsExperience with AI/GenAI integrations (e.g. OpenAI, Gemini APIs)Solid understanding of state management, performance, accessibility, and responsive designExperience with backend technologies (e.g. Node.js, Express, FastAPI)Familiarity with design systems and component libraries (e.g. Storybook, Tailwind, shadcn/ui)Understanding of cloud-based architectures and deployment processesFluency in German and English (C1)Work permit for Germany and at least one year of work onsite in GermanyNice to have

Experience with real-time technologies (WebSockets, streaming)Experience with CI/CD, Docker, or platforms like Cloud Run, Vercel, or KubernetesExperience with headless CMS, DAM, or MarTech systemsPassion for building clean, scalable, and understandable frontend architecturesYou’ll connect user experience and system logic—building interfaces and APIs that turn complex AI capabilities into usable, high-performing applications. Your work enables teams to deliver seamless, end-to-end digital products that scale across platforms and use cases. By structuring frontend and backend as modular, reusable systems, you help reduce complexity, accelerate development, and ensure consistency across experiences—turning ideas into reliable, real-world applications.

We care about your personality and professional skills. We don't care about your gender, age, nationality or appearance and are open to working with everyone.

Please note: This is a job ad by WongDoody GmbH, based in Germany. Through our website or other sources, you may find job ads published by one of our WongDoody sister companies around the globe with whom we act jointly under the brand “WongDoody”. For each job offer, only the entity which published the ad is responsible. Contact people, required information and applicable terms may differ. Read more about how WongDoody GmbH processes your personal data in the application process here.

If you have any questions about the application process, please feel free to contact our People & Culture Team directly at job@odt.net.