Senior Backend Developer

United States Digital Space LLC; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

United States Digital Space LLC is seeking a Senior Back-End Java Developer (5+ years) to design and build core services for a cross-border payments and financial infrastructure platform. The role emphasizes robust, scalable Java services, RESTful APIs, and microservices in a distributed architecture.

Fluent English and strong collaboration with product, QA, DevOps, and frontend teams are required. Remote candidates are considered for highly qualified applicants.

Qualifications

• 5+ years of back-end development with Java
• Strong hands-on experience with Java 11+ and Spring / Spring Boot
• RESTful APIs design and implementation
• Distributed systems / microservices with observability

Skills

Java

Spring Boot

REST APIs

Distributed systems

Databases

NoSQL

Kafka

RabbitMQ

Testing

CI/CD

Docker

AWS

Azure

GCP

Security

Performance

Communication

Job description

Our client is building a modern cross-border payments and financial infrastructure platform (exchange, clearing, messaging, digital currency) for banks and financial institutions. We're looking for a Senior Back-End Java Developer (5+ years) to help design and build our core services.

Profile summary

• 5+ years of professional experience in back-end development with Java
• Strong hands-on experience with Java 11+, Spring / Spring Boot, and RESTful APIs
• Solid background in distributed systems / microservices, including service discovery, resilience, and observability
• Excellent knowledge of relational databases (e.g. PostgreSQL, MySQL) and familiarity with NoSQL stores
• Experience with message brokers/streaming (Kafka, RabbitMQ, or similar)
• Strong focus on clean code, testing (unit/integration), and code reviews
• Comfortable with CI/CD pipelines, containerization (Docker), and cloud platforms (AWS/Azure/GCP)
• Good understanding of security, performance, and scalability in financial or mission-critical systems
• Strong communication skills and ability to work closely with product, QA, DevOps, and front-end teams
• Bonus: experience with payments, FX, cross-border transfers, ISO 20022, SWIFT, or other financial protocols; exposure to event-driven architectures and DDD

Languages and location

• Fluent English is a must (written and spoken)
• Location: strong preference for UAE, Dubai, with flexibility for remote candidates who are highly qualified

This role is ideal for someone who enjoys owning services end-to-end, cares about robustness and correctness, and wants to help shape the technical backbone of a next-generation financial network.

Originally posted on Himalayas