Mid-Senior Java Developer - Spanish Speaker (ARG 52)

Job Description

THE PROFESSIONAL MUST BE BASED IN ARGENTINA

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.

Position Summary

We are looking for a skilled and motivated Java Middleware Developer to join our technology team in the fintech/payments industry. The ideal candidate will be responsible for designing, developing, and maintaining high-performance microservices and middleware applications using modern Java technologies and Agile methodologies. This role requires strong analytical skills, hands-on experience with scalable backend systems, and the ability to collaborate effectively within cross-functional teams.

Requirements

Key Responsibilities

• Develop new product functionalities based on business and technical requirements
• Design, build, and maintain scalable and performance-optimized middleware applications
• Produce clean, efficient, and properly unit-tested code
• Develop and maintain Java 11+ microservices using Spring Boot and Spring Cloud (Netflix OSS)
• Design and implement RESTful APIs and integrate secure authentication mechanisms using OAuth2
• Work with JPA persistence and ORM modeling
• Support SIT, UAT, and production environments, ensuring system reliability and stability
• Apply modern Agile methodologies and actively participate in Agile ceremonies
• Collaborate with cross-functional teams including Product, QA, and DevOps
• Maintain technical documentation including product requirements, design documents, and specifications
• Use Git and version control best practices for code management and collaboration

Education

• Bachelor’s or Master’s degree in Computer Engineering, Computer Science, Software Engineering, or a related field

Experience

• Minimum of 5 years of experience in middleware application development using Java
• At least 1 year of hands-on experience with Java 11+
• Proven experience in fintech and/or payments industry
• Knowledge of:
• Java Functional Programming and Object-Oriented Design (OOD)
• Spring Framework 5
• Spring Boot and Spring Cloud (Netflix OSS)
• RESTful API design
• OAuth2 Security
• JPA persistence and ORM modeling
• Git version control systems
• Familiarity with Event-Driven architecture and software design patterns
• Experience working in Agile development environments
• Strong analytical and practical problem-solving skills
• Team-oriented mindset with excellent collaboration skills

Languages

• English: Advanced written and verbal communication
• Spanish: Native ou Fluent written and verbal communication

Important Information

• Hybrid position based in Argentina (mandatory)
• The professional must be based in Argentina
• Please submit your resumé in English