[Hiring] Full-Stack Developer @ADOMIK

Role Description

Are you a full-stack developer who loves delivering features from end to end? 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? 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.

• 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.
• No more silos: you own your features from start to finish.
• 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.

Mission

• Deliver end-to-end features, from API design (Ruby on Rails) to user interface implementation (React), ensuring a seamless user experience.
• Collaborate closely with the Product team to understand requirements, propose solutions, and iterate on feedback.
• Optimize existing application code to improve performance and maintainability.
• Take the initiative to improve our architecture, design, and development workflows.

Our stack

• 200+ AWS instances (EC2, S3, SQS, Cognito)
• 10 TB+ of data ingested every day
• Backend: Ruby on Rails, Grape API, Sidekiq, Python, Scala
• Frontend: React, TypeScript, Tailwind CSS, shadcn/ui
• Databases: MySQL, MongoDB, Snowflake, Redis, Elasticache
• Testing: RSpec, Jest, Cypress
• DevOps: Git, GitHub, GitHub Actions

Qualifications

• 3+ years of experience with Ruby on Rails and React with TypeScript.
• Strong SQL skills and experience with complex analytical queries (Snowflake is a plus).
• Comfortable working with REST APIs and distributed systems.
• Embrace modern development practices: testing, code reviews, CI/CD.
• Strong communication skills and enjoy working closely with Product teams.
• Caring about user experience and paying attention to detail.
• Fluent in English; proficiency in French is an asset.
• Based in the CET/CEST timezone ± 2h (for team collaboration).

Requirements

• Experience with AI-assisted development tools (Claude Code, GitHub Copilot, or similar): code generation, refactoring, debugging, and codebase exploration.
• Design, development, and maintenance of Ruby on Rails applications and RESTful APIs (including Grape).
• Experience with testing (RSpec), code reviews, continuous integration, and technical documentation.
• 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.
• Experience setting up and maintaining tests (Jest, React Testing Library, Cypress).
• 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.
• 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).

Benefits

• Full remote
• Macbook provided

Company Description

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.