Back End Developer

Build the Technology Behind Seamless Travel Experiences at Carla Car Rental – Join Us as a Back End Developer At Carla Car Rental, we are transforming the way people rent cars around the world. As a mobile-first travel platform, we help millions of travelers discover the best car rental options, protection plans, and mobility services through a seamless digital experience. We are a product-first company where innovation, experimentation, and customer experience drive every decision we make. As we continue to grow, we are looking for a Back End Developer who can build reliable, scalable, and high-quality backend systems that create meaningful customer and business impact. You can download the Carla app: Carla App - App Store Carla App - Google Play Role Overview As a Back End Developer at Carla, you will work on the core backend systems that power our global travel and mobility platform. You will contribute to services used across search, pricing, booking, payments, supplier integrations, customer support flows, and internal operations. This role requires strong engineering fundamentals, ownership, and the ability to work closely with cross-functional teams. You will collaborate with product managers, mobile engineers, data, operations, and customer experience teams to build solutions that improve customer experience and business performance. You will be involved in designing and developing APIs, improving system performance, maintaining production services, and contributing to technical decisions that help Carla scale. You will work in a fast-moving environment where your code can reach production quickly and create a visible impact. This is an opportunity to solve real-world engineering challenges at the intersection of travel, technology, marketplaces, and mobility while helping millions of travelers access seamless and affordable transportation worldwide. Key Responsibilities Design, develop, test, and maintain backend services that support Carla’s mobile apps, web platform, and internal tools. Build and improve APIs used for car rental search, pricing, booking, payments, supplier integrations, and operational workflows. Write clean, maintainable, testable, and production-ready code. Collaborate closely with product managers, mobile engineers, QA, data, operations, and customer experience teams. Contribute to technical planning, solution design, development, testing, release, and post-launch improvements. Improve system performance, reliability, observability, and maintainability. Work with databases, caching systems, third-party APIs, and cloud-based services. Participate in code reviews and contribute to engineering best practices. Monitor production systems, investigate issues, and support continuous improvement of backend services. Take ownership of assigned projects and deliver high-quality solutions in a fast-paced product-driven environment. What We Seek in You 2+ years of backend development experience in technology-driven companies. Strong experience with Java and/or Kotlin. Experience with Spring Boot or similar backend frameworks. Good understanding of REST APIs, relational databases, distributed systems, and software architecture. Experience working with databases such as MySQL or PostgreSQL. Ability to write clean, maintainable, and testable code. Understanding of software development lifecycle, release processes, debugging, and production support. Experience working closely with product managers, mobile engineers, QA, and other cross-functional teams. Strong problem-solving skills and ability to take ownership. Ability to work in a fast-moving environment with changing priorities. Good communication and collaboration skills. Passion for building reliable products and improving customer experience through technology. Experience with marketplace, travel, mobility, e-commerce, or consumer-facing products is a plus. Technical Skills Experience with several of the following is expected: Java Kotlin Spring Boot REST APIs MySQL / PostgreSQL Redis or similar caching technologies AWS or another cloud platform Git CI/CD pipelines Unit Testing Integration Testing Distributed Systems API Integrations Monitoring & Logging Performance Optimization Agile & Scrum Methodologies What We Offer Up-to-date technical equipment, including macOS devices. An innovative, fast-moving, and product-focused environment where your work directly impacts the business. A highly collaborative culture with transparency and open communication. Meal and transportation allowances. A fully stocked kitchen with coffee, snacks, and beverages. Continuous learning and career development opportunities. Training and development reimbursement support. A comfortable, centrally located office in Üsküdar. Dedicated recreation areas and regular team events. Co-funded MultiSport membership program to support an active and healthy lifestyle. 12 days of paid vacation from your first year. A day off on your birthday. A zero-tolerance policy toward toxic behavior and a strong commitment to creating a respectful, inclusive workplace. Carla embraces diversity and equal opportunity in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be.