Kotlin Backend Developer
Vor 5 Tagen
At JetBrains, code is our passion. Since 2000, we've been building the most effective developer tools in the world – tools that automate routine tasks and empower developers to focus on creativity, exploration, and problem-solving.
We're looking for a Kotlin Backend Developer to join the Kocelot team and help us build the foundation of a new platform for developing domain-specific languages (DSLs).
Kocelot is an experimental project aimed at rethinking how DSLs are designed, analyzed, and embedded into modern applications. The platform combines language definition tools, reactive data processing infrastructure, and a new take on projectional editing – all designed to work seamlessly in web environments. Our goal is to make it easier for teams to build expressive, embeddable languages tailored to their domains.
You'll be working on the core backend layer: a system that manages structured user data, tracks changes over time, and powers live, incremental processing of language semantics.
As part of our team, you will:- Design and develop scalable backend services for DSL semantic analysis and execution.
- Work on versioned, structured data storage for reactive data processing.
- Build Kotlin-based SDKs that expose the platform's capabilities to DSL authors.
- Contribute to a unified graph-based workspace model used across the platform.
- Participate in architectural discussions and long-term technical decisions.
- Extensive JVM backend development experience.
- Extensive experience with the Kotlin programming language.
- A solid understanding of distributed systems and scalable service design.
- Prior experience with various modern storage technologies (relational databases, key-value stores, graph databases, and/or triple stores).
- Familiarity with event-driven architectures.
- The ability to prototype and iterate quickly in an experimental setting.
- A passion for clean code and maintainable systems.
- The ability to work effectively in a distributed team.
- Experience with Kotlin Multiplatform.
- Hands-on work experience with compiler plugins or meta-programming.
- Experience building collaborative editing or reactive data systems.
- Experience building DSLs, IDEs, and language processors.
-
Backend Developer
Vor 6 Tagen
Berlin, Berlin, Deutschland DKB Code Factory Vollzeit 60.000 € - 80.000 € pro JahrWelcome at DKB Code Factory…. { { … a_place_to_stay_yourself:} } ; { { … a_place_to_stay_curious:Ready to work on backend services that thousands of people rely on every day?As a Mid-Level Backend Developer (Kotlin & Spring Boot), you'll be part of a collaborative team where your work directly impacts the products our customers use daily. You'll...
-
Backend Developer
Vor 5 Tagen
Berlin, Berlin, Deutschland m2TALENTS Vollzeit 60.000 € - 90.000 € pro JahrBackend Developer (Jakarta EE / Quarkus) Fully Remote (Germany)We're supporting a health tech company that's reimagining how therapy practices runthink clean code, clear values, and critical impact. Theyre now looking for a Backend Developer to help evolve their backend systems, architecture, and deliveryall from wherever you work best in Germany.What...
-
Backend Developer
Vor 5 Tagen
Berlin, Berlin, Deutschland NeuroNation Vollzeit 80.000 € - 120.000 € pro JahrAbout usNeuroNation is a leading brain training platform empowering more than 30 million people worldwide to stay cognitively fit, independent, and mentally strong. We collaborate closely with scientists, universities, clinics, and research organizations to develop engaging, evidence-based digital health solutions.Our products, including the medical device...
-
Backend Developer
Vor 6 Tagen
Berlin, Berlin, Deutschland Probatix Health GmbH Vollzeit 60.000 € - 90.000 € pro JahrBei Probatix verbesseren wir den Zugang zur medizinischen Labordiagnostik, einem entscheidenden Baustein für die Qualität unseres Gesundheitssystems. Mit unserer Diagnostik-as-Service Plattform digitalisieren wir die zugehörigen Prozesse vollständig, sicher und komfortabel. Wir ermöglichen es Unternehmen, Labordiagnostik nahtlos in ihre...
-
Senior Backend Engineer – Kotlin
Vor 5 Tagen
Berlin, Berlin, Deutschland Visable Vollzeit 80.000 € - 120.000 € pro JahrForme mit uns die Zukunft des B2BEntwurf, Aufbau und Wartung von APIs, Services und anderen Backendsystemen in den Engineering-Teams von VisableArbeit mit einer Vielzahl von Systemen, Prozessen und Technologien, um Probleme ganzheitlich zu lösenAufrechterhaltung hoher Engineering-Standards und Sicherstellung von Konsistenz in den verschiedenen Codebasen und...
-
Backend Developer
vor 1 Woche
Berlin, Berlin, Deutschland Integress, Inc. Vollzeit 80.000 € - 120.000 € pro JahrAbout The PositionAbout AllCloudAllCloud is a global professional services company that provides organizations with the tools for cloud enablement and transformation. As an AWS Premier Consulting Partner and audited MSP, a Salesforce Platinum Partner, and a Snowflake Premier Partner, AllCloud helps clients connect their front and back offices by building a...
-
Backend Developer
vor 1 Woche
Berlin, Berlin, Deutschland AllCloud Vollzeit 60.000 € - 120.000 € pro JahrAbout AllCloudAllCloud is a global professional services company that provides organizations with the tools for cloud enablement and transformation. As an AWS Premier Consulting Partner and audited MSP, a Salesforce Platinum Partner, and a Snowflake Premier Partner, AllCloud helps clients connect their front and back offices by building a new operating model...
-
Backend Developer
Vor 5 Tagen
Berlin, Berlin, Deutschland Herdius Vollzeit 60.000 € - 120.000 € pro JahrWe are looking for awesome backend developers to join our team at Herdius. We are a cryptocurrency startup working on a decentralized financial platform for cryptocurrencies. Our goal is to connect digital assets with the real world as well as to provide an ecosystem where new e-commerce platforms and decentralized services can...
-
Mobile App Developer
Vor 5 Tagen
Berlin, Berlin, Deutschland Rectrade ProSkill Connect Vollzeit 60.000 € - 120.000 € pro JahrAre you a passionate Mobile App Developer who loves building cutting-edge applications for iOS and Android? Join our team, where youll develop innovative mobile solutions, collaborate with a talented team, and shape the future of mobile technology.We are looking for skilled iOS, Android, or cross-platform developers for our client to build high-quality...
-
Senior Backend Developer
Vor 6 Tagen
Berlin, Berlin, Deutschland senvo Vollzeit 90.000 € - 120.000 € pro JahrSenvo is a young start-up working on changing the face of last mile logistics. We enable logistics companies, e-commerce providers and producers to ship goods more effectively and efficiently. We are a tight-knit team of highly driven and smart people who are supportive of each other, passionate about technology, and compassionate with our users.The...