Senior Java Software Engineer (Remote - Peru) - PR114-DV

OKTO PAYMENTS' continuous growth demands high-caliber candidates who embody professionalism, passion, and creativity. For those who join us, we offer significant career advancement, stimulating challenges, and a clear runway for growth.

OKTO PAYMENTS is the next-generation Payment Service Provider - AI-native, precision-engineered, and relentlessly merchant-obsessed. Built for merchants operating in the most complex and demanding eCommerce sectors, our platform goes far beyond transaction processing. We solve for scale, compliance, and performance with one unshakable focus: delivering outcomes that power merchant growth.

From payments and banking to treasury and settlement, we engineer the financial infrastructure that gives our partners a competitive edge. The result? Faster onboarding, smarter operations, and resilient, real-time performance.

At OKTO PAYMENTS, we enable merchants to Play Differently, transforming payments from routine transactions into true differentiators that deliver personalized, frictionless experiences.

Our AI-native innovation harnesses data and insight to power every decision, while our proprietary in-house engineering ensures precision and control. Combined with deep, trust-based relationships worldwide, we’re redefining what it means to build, scale, and win in complex digital commerce.

SummaryAs a Senior Software Engineer, you will play a key role in designing, developing, and maintaining our next-generation payment platform. This position requires strong hands-on experience with distributed systems, Java-based microservices, and high-volume transaction processing. You will be responsible for building scalable, secure, and reliable software solutions while collaborating closely with product, infrastructure, security, and other engineering teams.

• Design, architect, and develop backend software solutions for high-volume payment processing.
• Create and maintain high-quality, optimized code with robust unit tests and appropriate test coverage.
• Develop scalable, secure, and reliable software solutions using Java and Spring technologies.
• Contribute to the evolution of the payment platform and its underlying architecture.

• Lead the design and architecture of complex distributed systems that handle real-time financial transactions at scale.
• Take a lead role in the transition to a microservices-based architecture for payments.
• Design and implement solutions based on Event-Driven Software Design Patterns.
• Ensure systems meet high standards of scalability, security, and reliability.

• Lead the integration of payment gateways, banks, card networks, and alternative payment methods.
• Work with payment flows, settlement, reconciliation, and fraud detection mechanisms.
• Contribute to the development of solutions supporting high-volume financial transactions.

• Design and develop secure and scalable RESTful APIs.
• Implement and work with OAuth2 Security, JWT, and SSO mechanisms.
• Ensure the security and reliability of payment-related services and integrations.

• Design and develop solutions using AWS cloud services.
• Work with AWS services including IAM, EC2, S3, Lambda, RDS, DynamoDB, and API Gateway.
• Collaborate with DevOps teams to optimize cloud-based solutions.

• Work with PostgreSQL, MySQL, and NoSQL databases.
• Implement and optimize transaction management.
• Perform database tuning to support high-volume transaction processing.
• Contribute to high-availability strategies for critical payment systems.

• Collaborate with DevOps teams to optimize CI/CD pipelines.
• Contribute to monitoring strategies for production systems.
• Support the scalability, performance, and reliability of production environments.

• Provide technical leadership and mentor junior developers.
• Guide the team in best practices and efficient coding techniques.
• Collaborate with cross-functional teams to deliver highly scalable and performant solutions.
• Drive continuous improvement initiatives, identifying bottlenecks and optimizing the software development lifecycle.

• Produce clear and concise technical requirements, design documents, and specifications.
• Communicate complex technical concepts effectively with technical and business stakeholders.

• Bachelor's or Master's degree in Computer Engineering or a related field.
• 7 years of experience in backend software development.
• Desirable: experience leading teams and architecting payment systems.
• Proven working experience in the FinTech/Payments industry.

• Deep knowledge of Java 11+.
• Strong experience with Spring Boot.
• Strong experience with Spring Cloud (Netflix OSS).
• Strong experience with JPA ORM.

• Strong understanding of distributed systems.
• Extensive experience with Event-Driven Software Design Patterns.
• Expertise in microservices architecture.
• Experience architecting and designing complex systems.

• Strong understanding of payment flows.
• Experience with settlement and reconciliation.
• Knowledge of fraud detection mechanisms.
• Experience integrating payment systems and financial institutions.

• Expertise in designing secure RESTful APIs.
• Strong knowledge of OAuth2 Security.
• Experience with JWT and SSO mechanisms.

• Strong experience with AWS cloud services, including:
• IAM
• EC2
• S3
• Lambda
• RDS
• DynamoDB
• API Gateway

• Hands-on experience with transaction management.
• Experience with database tuning.
• Experience with PostgreSQL, MySQL, or NoSQL stores.
• Experience with high-availability strategies.
• Experience working with high-volume transaction processing environments.

• Advanced proficiency in Git for source control and versioning.
• Strong understanding of software development and coding best practices.
• Experience developing high-quality, optimized code with appropriate unit test coverage.

• Advanced English (mandatory), with the ability to participate in technical discussions and communicate complex technical concepts effectively.
• Spanish (mandatory), with the ability to communicate complex technical concepts effectively.

• Experience working with high-volume financial transaction processing systems.
• Experience with payment gateways, banks, card networks, or alternative payment methods.
• Experience working with production systems and monitoring strategies.

Please submit your CV/resumé in English.

• 💰 Competitive Compensation
• 📈 Career Growth
• 🎓 Continuous Learning
• 🌱 Inclusive Environment
• 🏠 Work-from-home
• 🎂 Birthday leave

Originally posted on Himalayas