Senior Frontend Engineer - Browser Extension

In this role, you will:

• Contribute to the evolution of the browser extension architecture and mentor team members in developing our white-label solution, ensuring scalability, maintainability, quality, and long-term performance.
• Design and implement features across the entire product lifecycle - from design (Figma), UI implementation (internal design system), JavaScript scripts, and web development, to AWS services (Lambda) and backend APIs (Node.js).
• Collaborate closely with the Product Manager, Designers, and Engineers within the team (from junior to senior level), as well as with other engineering teams across the company.
• Report progress, key outcomes, and team objectives to the management hierarchy and senior leadership., We review every application with equal care and will reach out if your profile aligns. Apply now with your CV in English.
• Portfolios, writing samples, or certifications may be requested based on the role.

• 5+ years of experience in web application development or browser-based software.
• Strong proficiency in TypeScript and modern web development.
• Experience with at least one web framework (React, Angular, Vue, or similar).
• Solid understanding of browser APIs, web platform behavior, and client-side performance considerations.
• Experience integrating with backend APIs (REST or GraphQL).
• Ability to design and implement scalable client-side systems that interact with multiple services and websites.
• Strong experience with automated testing strategies (unit, integration, end-to-end) and maintaining reliable CI/CD pipelines.
• Strong problem-solving skills and the ability to navigate complex technical trade-offs.
• Ability to communicate technical ideas clearly and collaborate effectively within cross-functional teams.
• Ability to think in terms of platform architecture and reusable extension modules, not just feature implementation.
• Very strong oral and written communication skills in English

Bonus Skills:

• Experience developing browser extensions (Chrome, Firefox, Safari).
• Knowledge of browser security models, permissions, and extension architecture (MV3).
• Experience with performance optimization for client-side applications.
• Familiarity with GraphQL and Apollo Client architectures.
• Experience working with large-scale consumer products or high-traffic web platforms.
• Familiarity with cloud platforms (AWS) and modern DevOps practices.
• Experience working on multi-brand or multi-market platforms.

At Atolls, we believe in nurturing both your professional and personal growth. Here's what you can expect:

• A culture that values personal and professional development, with internal mobility opportunities.
• A supportive and open-minded team that embraces diverse perspectives and innovative ideas.
• 32 days of paid vacation plus your birthday off, giving you the time you need to recharge.
• A flexible hybrid working scheme to balance work and life.
• Access to a learning budget and internal training to help you grow in your role.
• Mental health coaching to support your well-being.
• Regular global and local get-togethers to celebrate successes and build connections.
• The possibility of taking a sabbatical after three years with the company.
• A cloud-based company setup, providing flexibility and collaboration opportunities no matter where you are.

Atolls is the world's largest community-driven shopping platform, active in 20+ markets. We help millions make smarter spending decisions across discovery, evaluation, and (re-)purchase by connecting people with the right brands and retailers. Our 1,000+ team across 10 countries builds products used every day at global scale, where you'll have real ownership and see your impact. Want to shape the destinations people rely on to shop with confidence? Keep reading., We are looking for a Senior Software Engineer to join our Browser Extension Team team in Berlin. At Atolls, your role will be instrumental in creating exceptional user experiences and empowering consumers to make informed and confident shopping decisions. Our browser extension powers cashback, coupons, and shopping rewards used by millions of users across thousands of e-commerce platforms, placing you at the heart of the shopping journey. As a key part of our team, you'll be directly involved in building and enhancing the digital destinations our users rely on every day.