Java Engineer - Contractor

About this role

CoinMarketCap seeks an experienced Java contractor to design and optimize complex backend systems for their cryptocurrency data platform. You'll translate business requirements into robust applications, maintain high-performance code, and troubleshoot production systems across a global tech stack.

What you'll do

• Design and investigate complex distributed systems independently
• Build and maintain efficient, reusable Java code with strong quality standards
• Optimize system performance and ensure stability of services
• Identify bottlenecks, bugs, and implement solutions to improve reliability
• Review, test, and verify code for security and quality adherence
• Translate business requirements into functional, responsive applications

What they're looking for

• Java (core and server-side technologies)
• Spring Boot and Spring frameworks
• Microservices architecture
• Kafka, Redis, MongoDB, MySQL
• Kubernetes and containerization
• REST APIs and Web Services
• Multi-threading and event processing
• Prometheus monitoring

Benefits

• Contractor position with global flexibility
• Work on world's leading cryptocurrency data platform
• Exposure to high-scale distributed systems
• Opportunity to work with modern cloud-native stack
• Involvement with mission-driven crypto data authority