This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Pessoa Desenvolvedora Sênior – Kotlin based in Brazil.
This role sits at the core of a mission-critical financial API gateway responsible for enabling secure and reliable communication between ERPs and financial institutions. You will work on high-impact systems that process real financial transactions, requiring strong attention to performance, scalability, and resilience. The environment is highly technical and collaborative, bringing together Product, Engineering, and Domain stakeholders to build robust integrations. You will be expected to operate with autonomy, while also contributing to architectural decisions and product evolution. This is a hands-on senior engineering role where business understanding and technical depth are equally important. It is ideal for someone who enjoys solving complex integration challenges in high-stakes financial systems.
Accountabilities:
- Develop and evolve Kotlin-based microservices with a strong focus on robustness, scalability, performance, and reliability in production environments.
- Design and implement end-to-end integrations with financial institutions’ APIs, translating complex technical specifications into production-ready solutions.
- Apply Domain-Driven Design principles to model scalable systems and manage communication between services using REST and event-driven architectures.
- Collaborate closely with Product teams to refine requirements, identify technical constraints, and proactively address gaps in solution design.
- Ensure security, observability, and system reliability from design through production, actively participating in code reviews and incident resolution.
- Contribute to the continuous improvement of engineering practices, including testing, CI/CD, and system design standards.
Requirements:
- 5+ years of experience in JVM-based development with strong expertise in idiomatic Kotlin.
- Solid experience designing and building microservices architectures and distributed systems.
- Strong knowledge of API integration patterns including REST, SOAP, HTTP fundamentals (status codes, retries, idempotency), authentication mechanisms (OAuth2, mTLS, digital certificates), and messaging/queues.
- Proven ability to interpret third-party technical documentation (including banking and financial APIs) and implement solutions independently.
- Strong understanding of DDD, Clean Code, SOLID principles, and relational databases such as PostgreSQL.
- Excellent analytical thinking and communication skills, especially in remote, distributed teams.
- Nice to have: experience with financial, banking, or payments systems; Ktor; event-driven architectures; automated testing; CI/CD pipelines; cloud platforms (Azure/AKS, Kubernetes); OpenAPI documentation.
- Strong openness to using AI-assisted development tools as part of daily workflows.
Benefits:
- Health and wellness support, including Totalpass access for physical and mental well-being.
- Psychological support program for employee care and well-being.
- Company-provided equipment to support your work setup.
- Day off on your birthday.
- Employee referral bonus program.
- Remote-friendly and flexible work environment.
- Collaborative and technically strong engineering culture.
- Opportunities to work on high-impact financial technology systems at scale.
Your email job alert is now active!
