Senior Backend Developer | Kotlin and Java
Core
Building and maintaining scalable payment processing systems and microservices for a global fintech ecosystem serving millions of merchants.
Role type
Senior Backend Developer (Java/Kotlin)
Builds
Unified payment platform integrating hardware, software, fraud prevention, and financial services
Domain
Fintech / Payments / Latin America & Iberian Peninsula
Deliverable
production ML models | product features
Required skills
Java, Kotlin, Spring Framework, Microservices, AWS or Azure, MongoDB, RabbitMQ, REST APIs, Unit Testing, Git, DevOps, Infrastructure Automation
Preferred skills
JavaScript/TypeScript, NodeJS, Python, API Gateway, Jira, Confluence, Jenkins, Terraform
Responsibilities
Develop technical artifacts and business logic layers, ensure system health and security, resolve critical incidents, improve non-functional indicators, evolve technical stacks, and drive agile process improvements
Seniority
Senior, hands-on IC