We are looking for a highly skilled Senior Backend Developer with strong experience in Java and hands-on knowledge of Kotlin for backend development. The ideal candidate will be responsible for designing, developing, and maintaining scalable backend services and RESTful APIs within a microservices-based architecture.
This role requires collaboration with cross-functional teams including Product, Frontend, DevOps, and QA, as well as active participation in system design and architectural decisions.
- Design, develop, and maintain backend services and RESTful APIs using Java and Kotlin
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Build and enhance microservices-based architectures
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Work with frameworks such as Spring / Spring Boot (Java or Kotlin)
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Integrate backend services with SQL and/or NoSQL databases
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Ensure code quality through unit testing, code reviews, and best practices
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Collaborate with Product, Frontend, DevOps, and QA teams
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Troubleshoot, debug, and optimize backend applications
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Participate in system design discussions and architectural decisions
- 5+ years of backend development experience using Java
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Hands-on experience with Kotlin for backend development
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Strong experience building REST APIs and backend services
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Experience with Spring Boot and Hibernate/JPA
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Solid understanding of microservices architecture
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Experience working with relational databases (PostgreSQL, MySQL, Oracle, etc.)
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Familiarity with Git, CI/CD pipelines, and build tools (Maven/Gradle)
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Good understanding of object-oriented design and design patterns
- Experience with cloud platforms such as AWS, Azure, or GCP
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Exposure to Docker and Kubernetes
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Experience with messaging systems such as Kafka or RabbitMQ
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Knowledge of security protocols such as OAuth2 and JWT
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Experience migrating services from Java to Kotlin (experience in at least one is acceptable)
Location: Martínez, Buenos Aires, Argentina
Work Modality: Hybrid (On-site presence required 1–2 times per week)
