Desenvolvedor(a) Backend Kotlin - Especialista

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Desenvolvedor(a) Backend Kotlin - Especialista based in Brazil.

This is a senior technical role focused on building and evolving backend platforms that support AI solutions at <scale.You> will work across critical services, BFFs, communication hubs, and strategic APIs in a high-impact technology environment.The role combines hands-on engineering with architectural leadership and long-term technical <decision-making.You> will help shape resilient, scalable, secure, and highly observable systems designed for mission-critical workloads.Working transversally with technology, product, data, and architecture teams, you will influence solutions from concept through <production.You> will also contribute to engineering excellence by mentoring peers and establishing modern development practices.This is an opportunity to have a direct impact on the evolution of AI Engineering platforms and large-scale digital products.

Accountabilities

• Lead technically complex initiatives across the full software development lifecycle, from architectural design and implementation through deployment and production operations.
• Serve as a technical reference for the team and other squads, ensuring high standards for code quality, performance, security, resilience, and maintainability.
• Design and evolve backend architectures, assessing technical trade-offs, operational risks, scalability requirements, and long-term platform impacts.
• Establish and promote engineering best practices, including TDD/BDD, clean code, DDD, structured code reviews, and comprehensive automated testing.
• Take an active role in production support and system reliability, using observability, root-cause analysis, incident prevention, and continuous improvement practices.
• Collaborate with product, data, platform, and architecture stakeholders to translate business needs into scalable and sustainable technical solutions.
• Contribute to the evolution of engineering capabilities by mentoring developers, sharing knowledge, and raising technical maturity across teams.

Requirements

• Advanced, proven experience developing backend solutions with Kotlin or Java, preferably using Spring Boot in high-scale environments.
• Strong expertise in microservices and BFF architectures, including API versioning, integration patterns, resilience, scalability, and asynchronous communication.
• Solid experience with automated testing at multiple levels, including unit, integration, and contract testing.
• Advanced knowledge of relational and NoSQL databases such as PostgreSQL, MongoDB, and Cassandra, with a focus on consistency, performance, and availability.
• Hands-on experience with messaging and streaming technologies such as Kafka, SQS, and SNS in high-volume environments.
• Strong understanding of observability practices, including metrics, structured logging, distributed tracing, and SLI/SLO definition.
• Practical experience with cloud environments, preferably AWS, as well as Infrastructure as Code using Terraform or CloudFormation and mature CI/CD pipelines.
• Advanced knowledge of application security, including authentication and authorization with JWT and OAuth2, encryption, and secure-by-design practices.
• Experience working in agile environments with a DevOps mindset, strong technical ownership, and a focus on operational efficiency.
• Previous experience with complex platforms, system integrations, or mission-critical digital products.
• Strong communication, collaboration, problem-solving, and technical leadership skills, with the ability to influence decisions across multiple teams.

Benefits

• Opportunity to work on high-impact backend platforms supporting AI solutions at scale.
• Exposure to complex, mission-critical technology environments and modern cloud-native architectures.
• Continuous learning and professional development opportunities.
• Knowledge-sharing initiatives and access to technical communities and training programs.
• Health and wellbeing support programs.
• Partnerships with fitness, health, and wellbeing platforms.
• Access to online learning and language-learning platforms.
• Employee discounts and additional partner benefits.
• Inclusive environment that values diversity, respect, ethics, collaboration, and professional growth.
• Career development opportunities within a global technology and innovation ecosystem.