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Expect coding (data structures, algorithms), system design for APIs and services, and behavioral questions about shipping backend work. Practice explaining trade-offs, debugging stories, and how you test and monitor production code.
Strong fit if you enjoy building reliable server-side systems and collaborating in an office-based Berlin team. Thin public company data means you should verify JOIN’s stack, product, and team culture in the interview process.
As a Backend Engineer at JOIN in Berlin, a typical day centers on designing and shipping server-side services, APIs, and data flows that power the product. Expect code reviews, debugging production issues, collaborating with frontend and product, and improving reliability and performance of core backend systems on-site in Berlin.
Strengthen systems design, APIs, databases, and cloud fundamentals. Free options from the Software Developers family:
The listing indicates an on-site Backend Engineer role with JOIN in Berlin (not remote).
APIs, data modeling, reliability, performance, and how you ship and operate services with clear ownership.
Start with freeCodeCamp, Saylor CS courses, CS50 (free to learn), and Microsoft Learn developer paths listed in the skills roadmap.
Backend Engineer (m/f/d) JOIN Berlin Full Time No Remote About This Position JOIN is seeking a Backend Engineer to contribute to our platform that assists thousands of businesses in finding the right candidates more efficiently. You will join an established engineering team in Berlin, focusing on improving architecture, raising quality standards, and delivering robust features. Day-to-Day Responsibilities Collaborate with frontend engineers, product managers, and DevOps/platform teams using Agile SDLC/Kanban workflow to build meaningful features. <li-Conduct peer code reviews and participate in retrospectives for continuous improvement. <li-Define technical requirements and identify optimal solutions to meet team goals. <li-Passionately contribute to engineering retrospectives focused on testing, architecture, automation, and coding standards. Qualifications We seek a candidate with 5+ years of backend development experience, particularly in strongly typed languages. Additional requirements include: Experience with backend technologies and frameworks. A strong understanding of database management systems. <li-Proficiency in version control systems like Git. <li-Excellent problem-solving skills and a commitment to quality. More About JOIN JOIN is dedicated to making the hiring process faster, fairer, and less burdensome. Our platform handles millions of candidate interactions, ensuring an unparalleled user experience for both businesses and candidates. We value clean architecture, code generation, linters, templates, and test-driven development. Ready to Apply? To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.
Generated for personal interview prep · 2026-08-01 UTC · getajob.ai