Full-stack Developer
ADOMIK
Remote · Paris · France
Agentic fit score: 60/100
- Claude Code
- Copilot
<p>As a leading ad tech company, we help publishers thrive in an increasingly challenging and complex digital world dominated by GAFAs.</p><p>Our unique AI-based SaaS platform offers a range of products that help publishers optimize their revenue and operational efficiency.</p><p>Over 100 prestigious customers in 20 countries, including industry leaders such as Microsoft, Dotdash Meredith, and Tripadvisor, use our solutions daily.</p><h2>Tasks</h2><p>Are you a full-stack developer who loves delivering features from end to end?</p><p>Would you like to work in a start-up environment for the leader in Adtech analytics, using cutting-edge tools like Claude Code to accelerate your workflow?</p><p>If you enjoy working on problems involving large amounts of data, are curious, passionate, and care about delivering quality user experiences, join our team of talented developers.</p><p>As part of the BUILD team, you'll be responsible for developing features across our products' full stack — from API design to user interface — with complete autonomy.</p><p>No more silos: you own your features from start to finish.</p><p>You will participate in technical design workshops, propose improvements, and work closely with the Product team daily, as well as with our data engineers and data scientists.</p><p><strong>Mission</strong></p><ul><li><p>Deliver end-to-end features, from API design (Ruby on Rails) to user interface implementation (React), ensuring a seamless user experience.</p></li><li><p>Collaborate closely with the Product team to understand requirements, propose solutions, and iterate on feedback.</p></li><li><p>Optimize existing application code to improve performance and maintainability.</p></li><li><p>Take the initiative to improve our architecture, design, and development workflows.</p></li></ul><p><strong>Our stack</strong></p><ul><li><p>200+ AWS instances (EC2, S3, SQS, Cognito)</p></li><li><p>10 TB+ of data ingested every day</p></li><li><p>Backend: Ruby on Rails, Grape API, Sidekiq, Python, Scala</p></li><li><p>Frontend: React, TypeScript, Tailwind CSS, shadcn/ui</p></li><li><p>Databases: MySQL, MongoDB, Snowflake, Redis, Elasticache</p></li><li><p>Testing: RSpec, Jest, Cypress</p></li><li><p>DevOps: Git, GitHub, GitHub A</p></li></ul><h2>Requirements</h2><p><strong>Core Skills</strong></p><p><strong>AI-Assisted Development</strong></p><ul><li><p>Experience with AI-assisted development tools (Claude Code, GitHub Copilot, or similar): code generation, refactoring, debugging, and codebase exploration. Ability to craft effective prompts and leverage AI tools to accelerate delivery while maintaining code quality.</p></li></ul><p><strong>Backend (Ruby on Rails)</strong></p><ul><li><p>Design, development, and maintenance of Ruby on Rails applications and RESTful APIs (including Grape). Strong focus on clean architecture, scalable patterns, performance, and performance.</p></li><li><p>Experience with testing (RSpec), code reviews, continuous integration, and technical documentation.</p></li></ul><p><strong>Frontend (React)</strong></p><ul><li><p>Development of modern web interfaces in React with TypeScript and JSX. Experience with state management (Redux, Zustand) and component-driven architecture. Proficiency with Tailwind CSS and component libraries such as shadcn/ui. Strong UX sensitivity and attention to user experience.</p></li><li><p>Experience setting up and maintaining tests (Jest, React Testing Library, Cypress), and contributing to long-term maintainability</p></li></ul><p><strong>Data & Storage</strong></p><ul><li><p>Strong SQL skills with experience writing complex analytical queries. Familiarity with Snowflake is a plus but not required. Experience with environments mixing SQL (MySQL) and NoSQL (MongoDB/Mongoid), and performance/caching tools such as Redis and Elasticache.</p></li></ul><p><strong>Quality & Delivery</strong></p><ul><li><p>Strong engineering discipline: automation and tooling with GitHub, CI/CD (GitHub Actions), testing, linting (ESLint), and structured review processes. Experience working with cloud and scalable environments (AWS).</p></li></ul><p><strong>About you</strong></p><ul><li><p>You have 3+ years of experience with Ruby on Rails and React with TypeScript.</p></li><li><p>You're pragmatic and autonomous, able to take a feature from design to production.</p></li><li><p>You have strong SQL skills and experience with complex analytical queries (Snowflake is a plus)</p></li><li><p>You're comfortable working with REST APIs and distributed systems</p></li><li><p>You embrace modern development practices: testing, code reviews, CI/CD</p></li><li><p>You have strong communication skills and enjoy working closely with Product teams</p></li><li><p>You care about user experience and pay attention to detail </p></li><li><p>You are fluent in English. Proficiency in French is an asset</p></li><li><p>You are based in the CET/CEST timezone ± 2h (for team collaboration)</p></li></ul><h2>Benefits</h2><ul><li><p>Full remote</p></li><li><p>Macbook provide</p></li></ul><p><strong>Ready to join us?</strong></p><p>If you're passionate about building quality software, excited about leveraging AI tools to boost your productivity, and want to work with a talented team on challenging ad tech problems, we'd love to hear from you!</p><p>At Adomik, we embrace modern development practices – including AI-assisted coding with tools like Claude Code – to help our developers focus on what matters most: solving complex problems and delivering value to our users.</p><p><strong>Our recruitment process:</strong></p><ul><li><p>Technical assessment (coding challenge)</p></li><li><p>Team interviews (2)</p></li><li><p>Final discussion and offer</p></li></ul><p>The process takes a few weeks. Apply now with your CV – we're looking forward to meeting you!</p><p>Find <a href="https://www.arbeitnow.fr">Jobs in France</a> on Arbeitnow</a>