OKTO PAYMENTS
OKTO PAYMENTS
51 – 200 Employees
APIB2BFintech
OKTO PAYMENTS is a fintech company building software infrastructure for digital payments across international markets. Its platform brings together pay-in and payout orchestration, treasury and settlement services, and APIs designed for real-time, mobile-first transactions. The company also supports regulated payment operations through KYC, AML, and fraud-prevention capabilities, helping merchants and enterprises integrate localized payment workflows with multilingual support. Its B2B focus centers on making payment deployment faster and more manageable across multiple countries.

Senior Java Software Engineer

Build secure, scalable payment services at OKTO, a global fintech. Develop Java and Spring microservices, APIs, and transaction-processing systems.

Description

  • Build and maintain Java and Spring middleware and backend services.
  • Deliver product features and platform capabilities to meet business and technical needs.
  • Create resilient, high-performance microservices for payment processing and financial transactions.
  • Write clean, efficient code and provide thorough unit test coverage.
  • Contribute to the design and implementation of distributed systems and event-driven architectures.
  • Develop and maintain REST APIs and secure OAuth2 integrations.
  • Resolve issues across testing, user acceptance, and production environments to keep the platform stable.
  • Work with product, QA, DevOps, and solution architecture teams.
  • Take part in Agile meetings, code reviews, technical discussions, and knowledge sharing.
  • Find ways to improve software quality, engineering processes, and system performance.
  • Use version control and CI/CD pipelines.
  • Document product specifications, designs, and implementation details.

Requirements

  • Bachelor’s degree in computer science, computer engineering, software engineering, information technology, or a related discipline.
  • At least five years of professional experience building Java middleware or backend applications.
  • At least one year of hands-on experience with Java 11 or later.
  • Professional experience in fintech, payments, banking, or financial services.
  • Strong grasp of object-oriented design, SOLID principles, and functional programming concepts.
  • Experience designing Spring Boot and Spring Cloud (Netflix OSS) microservices.
  • Solid knowledge of the Spring Framework 5 ecosystem.
  • Experience implementing authentication and authorization with OAuth2.
  • Experience with JPA, ORM modeling, and persistence frameworks.
  • Strong REST API design and development experience.
  • Familiarity with event-driven architecture, asynchronous messaging, and distributed software design patterns.
  • Experience using Git in collaborative source control workflows.
  • Understanding of software development practices, including unit testing, clean code, and code reviews.
  • Strong analytical, problem-solving, and troubleshooting skills.
  • Ability to work independently and collaborate with an international engineering team.
  • Strong technical writing skills for requirements, software designs, and technical specifications.
  • Advanced English is required.
  • Spanish is required.
  • Submit your résumé in English.

Benefits

  • Competitive salary package.
  • Career growth opportunities at a growing global fintech.
  • Challenging projects and ongoing learning opportunities.
  • Collaborative, diverse, international work environment.
  • Paid day off for your birthday.

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