Senior Full-Stack Developer Consultancy — ADT Studio (Remote / Home-based) Req no: 592323

Contract Duration:

11 months

Working arrangement:

Helsinki, Finland – Remote / Home-based

  • UNICEF works in over 190 countries and territories to save children’s lives, defend their rights, and help them fulfill their potential, from early childhood through adolescence.
  • At UNICEF, we are committed, passionate, and proud of what we do for as long as we are needed. Promoting the rights of every child is not just a job – it is a calling.
  • UNICEF is a place where careers are built. We offer our staff diverse opportunities for professional and personal development that will help them reinforce a sense of purpose while serving children and communities across the world. We welcome everyone who wants to belong and grow in a diverse and passionate culture, coupled with an attractive compensation and benefits package.
  • Visit our website to learn more about what we do at UNICEF.
  • UNICEF works in some of the world’s toughest places, to reach the world’s most disadvantaged children. To save their lives. To defend their rights. To help them fulfil their potential. Across 190 countries and territories, we work for every child, everywhere, every day, to build a better world for everyone. And we never give up.
  • The Global Learning Innovation Hub under the UNICEF Office of Innovation is seeking a Senior Full-Stack Developer to join the Accessible Digital Textbooks (ADT) team. The ADT initiative transforms PDF textbooks into rich, accessible digital learning materials for children with and without disabilities. The selected consultant will take the lead on the continued development of ADT Studio — a TypeScript monorepo application that automates the production of accessible digital textbooks through AI-powered pipelines. This role is central to making educational content universally accessible and available to millions of children worldwide.
  • The ADT initiative converts PDF textbooks into structured, accessible digital content — including HTML storyboards, quizzes, glossaries, image captions, translations, and text-to-speech audio — packaged as self-contained web bundles, EPUBs, or WebPubs. The production pipeline is powered by Large Language Models (LLMs) and controlled through a configuration-driven architecture that supports per-book customization of text classification, rendering strategies, and model settings.
  • ADT Studio is the successor to ADT Press, rebuilt as a TypeScript monorepo using AI-assisted development (Claude Code). It represents a significant architectural advancement: a two-level DAG pipeline model with a React frontend and Hono backend. The codebase is open-source, hosted on UNICEF’s GitHub, and designed for extensibility by third-party developers and country offices.
  • The initial release runs as a Docker-based application — users simply pull and run a container, with no local dependency management required. This approach prioritizes ease of deployment across diverse country office environments. The architecture is designed so that the same React + Hono codebase can later be wrapped in Tauri v2, delivering a native desktop installer experience with no Docker dependency at all.
  • If you would like to know more about this consultancy, please review the complete

Terms of Reference

here:  Sr Full Stack Devlper Cons TOR.pdf

    Minimum requirements

    :

      Education

      • :
      • Advanced university degree (Master’s or equivalent) in Computer Science, Software Engineering, Information Technology, Artificial Intelligence, or a related field.
      • A first-level university degree (Bachelor’s degree) in the above-mentioned fields combined with additional relevant professional experience may be accepted in lieu of an advanced degree.

        Work Experience

        • :
        • Minimum 6 years of professional experience in software development, with strong expertise in TypeScript (strict mode), React, and Node.js.
        • Demonstrated experience building and maintaining full-stack web applications with modern React patterns (hooks, functional components, context providers) and state management libraries such as TanStack Query or similar. Experience with TanStack Router, Table, or Form is a strong advantage.
        • Strong debugging and code review skills. The candidate must be able to independently diagnose an
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        Common Interview Questions And Answers

        1. HOW DO YOU PLAN YOUR DAY?

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