Backend Developer, Kotlin – Specialist

This is a fully remote position, open to applicants in Brazil.

📋 Description

• Lead technically intricate initiatives, managing the entire software development lifecycle from architectural design to deployment and production operations.

• Act as a technical resource for the team and other squads, ensuring exceptional standards of quality, performance, security, and resilience in services such as BFFs, communication hubs, and strategic APIs.

• Define and advance backend architectures, evaluating technical trade-offs, operational risks, and long-term implications on AI Engineering platforms.

• Establish and propagate engineering best practices, including TDD/BDD, clean code principles, DDD, structured code reviews, and high coverage of automated testing.

• Engage actively in the operation and maintenance of production systems, emphasizing observability, root cause analysis, incident prevention, and continuous improvement.

• Influence technical decisions across product, data, platform, and architecture, translating business requirements into scalable and sustainable technical solutions.

• Foster the technical development of engineers within the team, promoting skills enhancement and maturity in software engineering.

⛳️ Requirements

• Extensive, proven experience in backend development using Kotlin or Java, with frameworks such as Spring Boot in high-scale environments.

• Strong proficiency in microservices architecture and BFFs, including API versioning, integration patterns, resilience, scalability, and asynchronous communication.

• Solid background in test automation across multiple levels (unit, integration, contract) to ensure the reliability and safety of releases.

• In-depth knowledge of relational and non-relational databases, including PostgreSQL, MongoDB, and Cassandra, with a focus on consistency, performance, and availability.

• Significant experience with messaging and streaming systems like Kafka, SQS, and SNS in high-throughput environments.

• Expertise in observability practices, including metrics, structured logging, distributed tracing, and the establishment of SLIs/SLOs.

• Practical experience in cloud environments (preferably AWS), utilizing infrastructure as code (Terraform or CloudFormation) and established CI/CD pipelines.

• Advanced understanding of application security, including authentication and authorization (JWT, OAuth2), encryption, and secure-by-design methodologies.

• Consistent experience in agile environments, with a DevOps mindset, technical ownership, and a focus on operational efficiency.

• Prior experience with complex platforms, system integrations, or mission-critical digital products.

🏝️ Benefits

• Up to 5 days of leave for mental health care, with the option to take time off on specific days.

• Flexible working hours.