Senior Backend Engineer (m/f/d)

Turning Complexity Into Simplicity Circula is a Berlin-based software-as-a-service fintech that provides companies with a comprehensive expense platform for any payments made by employees. We are a team of 115 ambitious talents obsessed with the mission to simplify finance and payroll administration, while ensuring compliance through smart automations – so employees can do their best job. With over 30 nationalities across our offices in Europe, we embrace diversity and foster an inclusive culture, welcoming different perspectives and connecting people from different backgrounds.New work is nothing new to us: We value the freedom of choosing how and where we want to work. Through trust and flexibility, we are innovative and driven for success. Want to become a Circulator? Join us in becoming the #1 expense platform in Europe! YOUR IMPACT AT CIRCULA Join Circula and help build the backend of our finance automation platform. You will design and develop scalable, high-performance systems while working with a great and experienced team, enjoying a minimal amount of meetings and having the opportunity to use the product you build. This is a full-time position that can be done completely remote within Germany or from our office in Berlin. Your Responsibilities: Design, develop, and maintain scalable and high-performance backend systemsCollaborate with cross-functional teams to identify and prioritize features and requirementsWrite clean, testable and maintainable codeCreate and manage documentation for system design, code and testingParticipate in code reviews and ensure quality standards are metTroubleshoot and debug production issuesDevelop and maintain API integrations with third-party systems Our Tech Stack: Spring Boot, Kotlin, Java, MongoDB, ElasticSearch, RabbitMQ, GitHub, CircleCI, AWS YOUR Profile Qualifications: You have 5+ years of experience in designing and developing complex software systems. You hold a Bachelor’s degree in Computer Science or a related field.Tech Stack: You have strong knowledge of Spring Boot, Kotlin, Java, MongoDB, RabbitMQ, GitHub, CircleCI, and AWS. Experience with ElasticSearch is a plus.Ownership: You lead your own projects from inception to deployment.Drive: You are determined to build quality features, free from bugs, always following clean code principles.Collaboration: You successfully cooperate with cross-functional teams, including Engineering, Product, CSM, and Integrations, to prioritize product requirements.Growth Mindset: You constantly seek opportunities to learn and take on new challenges, staying updated with the latest industry trends and technologies.Transparency: You keep up to date on all activities and developments within the engineering team.Language: Fluent in English. BENEFIT WITH CIRCULA VSOP. Benefit financially when Circula thrives – our Virtual Stock Option Plan lets you share in our success.Circula’s Benefits. Enjoy Circula's food, internet and mobility allowances of up to €200 per month on us!Flexible working. We have a hybrid working model, a great, centrally located office in Berlin and offer home office days.Learning and Development. Use your €1500 budget for books, conferences, courses and more.Free Urban Sports Club membership. Keep fit and healthy with the sports that you love.Positive and open-minded. We love to socialize at team and company events. We also love pets, so your dog is always welcome too! Sounds exciting? Check out our careers page, our blog and get an impression of our culture at #lifeatCircula! WHAT'S NEXT? Note: The application includes a little challenge, in order to apply, solve it! We promise, it will be quick! Our Talent Acquisition Partner, Rüzgar Çako, will get back to you with feedback within 2 working days. During the interview process, you will meet our team, your manager and Circula’s Co-founders, Nikolai and Roman. We encourage you to apply, even if you don't meet all the criteria. At Circula, we promote diversity and inclusion by welc