Staff Frontend Engineer (React)

TL;DR

Staff Frontend Engineer (React): Building and optimizing the fastest and most intuitive shopping app and websites for over 11M active users monthly with an accent on UI/Web development, scalability, performance, and security. Focus on leading technical challenges, mentoring developers, defining architecture, and optimizing Core Web Vitals for high-traffic e-commerce.

Location: Hybrid role requiring onsite presence in Hamburg or Berlin, Germany. Relocation support available to Germany.

Company

hirify.global is an e-commerce company constantly improving its shopping app, mobile, and desktop websites, which are visited by over 11M active users every month.

What you will do

• Guide the team through complex technical challenges, breaking down large projects into manageable tasks, and ensuring timely and quality delivery of new e-commerce features.
• Mentor and coach Frontend Developers and QA Engineers, helping them grow their technical skills and understand system architecture.
• Act as the key technical partner to the Teamlead Product and the primary technical contact person for the team, ensuring alignment with business goals and other Tech Leads.
• Define and communicate the technical roadmap and architecture for the hirify.global website application, ensuring scalability, performance, and security.
• Own the monitoring and optimization of the website’s Core Web Vitals and overall application performance.
• Actively participate in the hiring, interviewing, and onboarding of new engineering talent.

Requirements

• 6+ years of programming experience in UI or Web development.
• Exceptional problem-solving and algorithmic thinking skills, coupled with a deep understanding of software design patterns and clean code principles.
• Expert-level knowledge and practical experience in building modern, scalable web applications using React, TypeScript, and advanced CSS/Styling techniques.
• Proven experience in analyzing and optimizing website performance, including deep knowledge of browser rendering, bundling, and techniques to achieve best-in-class Core Web Vitals.
• Good understanding of API design principles (e.g., REST, GraphQL) and experience in architecting robust and efficient data flow between frontend and backend services.
• Good working knowledge of Node.js for modern frontend toolchains, build processes, and potential Backend-for-Frontend (BFF) services.
• Demonstrated ability to define and implement a robust testing strategy across Unit, Integration, and End-to-End (E2E) testing, and hands-on experience implementing and maintaining CI pipelines.

Nice to have

• Experience managing or deeply understanding the nuances of hosting your own application infrastructure (e.g., Cloud providers, containerization).
• Basic understanding of database concepts and how they interact with the application layer.
• Direct experience working on high-traffic e-commerce platforms.
• Hands-on experience in automating development/QA workflows using AI tools.

Culture & Benefits

• Hybrid working model.
• Relocation support.
• Company events, language courses, and various employee discounts.
• Focus on creating an inclusive and exceptional environment, emphasizing physical and mental health.
• Feedback culture and company bicycle program.
• State-of-the-art technologies and central location.