(Senior) Backend Engineer - Relocation to Berlin (m/w/x)

<h2>About Grover</h2> <p>Unlock the future of tech with Grover!  We're revolutionizing access to cutting-edge technology, offering affordable and sustainable solutions through flexible tech rental subscriptions. No deposits, no commitments—just the latest tech on-demand, exactly when and where you need it. Join us in transforming the tech landscape across Germany, Austria, Spain, and The Netherlands. Your journey to limitless possibilities begins with Grover! </p> <h2>Our Mission &amp; Vision</h2> <p>To date, Grover has circulated over 1.2 million devices, employs over 400 people, and stands as one of the fastest-growing scale-ups in Europe. We hit Unicorn status in 2022, and are scaling internationally! </p> <p>We're proud to champion a more sustainable way to use tech. With an average of 3-4 rental cycles per device depending on the category, we estimate that the rental of our portfolio from 2015-2021 resulted in 160,000 fewer e-waste products and about 250 tons of e-waste. </p> <p>To continue this incredible adventure, we are currently looking for motivated<strong> Mid-Senior Backend Software Engineers</strong> (m/f/x), full-time for our <strong>Supply Chain team </strong>hybridly (3 days a week) at our<strong> Berlin HQ.</strong></p> <p><strong>🎯 What you will contribute:</strong></p> <ul> <li>Develop and maintain scalable and efficient backend services using Node.js, TypeScript, and NestJS</li> <li>Collaborate with other engineering teams to define data models, and service contracts, and ensure optimal performance</li> <li>Leverage Kafka as a core messaging platform for event-driven communication, ensuring reliability and scalability</li> <li>Build, manage, and integrate APIs (GraphQL and REST) for smooth communication with internal and external systems</li> <li>Write efficient and reusable code while following best practices and coding standards</li> <li>Perform thorough testing (unit, integration) and debugging to ensure backend functionality meets requirements</li> <li>Collaborate with team members to identify and resolve technical issues and optimize application performance</li> </ul> <p><strong>🤝 What you bring:</strong></p> <ul> <li>3+ years experience in developing web applications using TypeScript and Node.js</li> <li>Familiarity with NestJS or similar server-side frameworks, plus experience working with databases (e.g., PostgreSQL) and ORM frameworks</li> <li>Experience with building real-time data streaming and event-driven systems using Kafka</li> <li>Solid understanding of software development principles, design patterns, and best practices</li> <li>Proficiency with version control systems (Git) and collaboration tools such as Jira</li> <li>Experience with testing frameworks (Jest, Mocha, or similar) for comprehensive coverage</li> <li>Ability to work in a fast-paced, agile environment</li> <li>Strong communication and collaboration skills</li> </ul> <p><strong>Nice to have skills:</strong></p> <ul> <li>Experience with AWS</li> <li>Knowledge of DevOps practices, CI/CD pipelines, and containerization (Docker, Kubernetes)</li> <li>Familiarity with Ruby on Rails</li> <li>Prior experience working with Salesforce</li> <li>Understanding security best practices and implementing secure coding principles</li> <li>TDD/E2E testing methodologies, BDD approaches</li> <li>Observability tools and best practices for monitoring, logging, and alerting</li> </ul> <p><strong>To spark your curiosity, we currently work with the following tech stack:</strong></p> <ul> <li>TypeScript for our backend services</li> <li>Node.js, NextJS</li> <li>PostgreSQL &amp; Redis</li> <li>Kubernetes for container orchestration</li> <li>Federated GraphQL and REST APIs</li> <li>Messaging: Kafka</li> <li>DataDog for observability and monitoring</li> <li>Ruby on Rails</li> <li>Infrastructure as code: Terraform to maintain our AWS infrastructure</li> </ul> <p><strong>❤️‍🔥 What you will love about us:</strong></p> <ul> <li>Hybrid model with 8 mandatory days per month at the office</li> <li>28 days of paid vacation, plus another additional day after 3 &amp; 4 years </li> <li>30 days per year to work abroad </li> <li>BVG monthly discount to drive you everywhere in Berlin</li> <li>Company Pension Scheme and a top-up to Parental Leave (for both parents)</li> <li>Mental health support with Nilohealth</li> <li>Physical health support with Urban Sports Club or ClassPass</li> <li>Annual learning budget of 1000€ </li> <li>1 Paid Volunteering Day per Month </li> <li>Exclusive Grover Tech discount for you &amp; your loved ones</li> <li>Engaging, open office located in Berlin-Schöneberg with a diverse global team of 72 nationalities (and counting!)</li> </ul> <p>Embark on a rewarding journey with the Grover Rocketship, where your impact is felt, and together, we cultivate a more circular world. 💚</p> <p>We are looking forward to e-meeting you! <strong>🚀</strong></p>