[Hiring] Senior Java Developer @Sigma Software

Role Description

We are looking for a Senior Java Developer to join a large-scale E-commerce project focused on delivering reliable and customer-centric experiences for millions of pet owners. This is a full-time remote opportunity based in Brazil.

In this role, you will contribute to the development of cloud-native backend systems with strong emphasis on scalability, reliability, and performance.

• Design, develop, and implement large-scale distributed systems capable of handling substantial data volumes
• Build scalable, fault-tolerant, and low-latency backend services
• Architect and implement APIs and event-driven solutions
• Diagnose and resolve complex production issues across services and infrastructure layers
• Develop and execute unit, API, regression, and performance tests
• Collaborate with cross-functional teams to ensure rapid incident resolution and system reliability
• Participate in architecture discussions and contribute to engineering best practices
• Optimize system scalability, availability, and operational performance
• Support continuous improvement of CI/CD and deployment processes

Qualifications

• 7+ years of software development experience
• Strong proficiency in Java and Spring Boot
• Experience with Kafka or other event streaming solutions
• Familiarity with AWS and EKS
• Strong knowledge of CI/CD pipelines and related tools
• Hands-on experience designing and deploying scalable, highly available distributed systems
• Strong understanding of event-driven architectures
• Experience working with SQL and NoSQL databases
• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud
• Strong analytical and problem-solving skills
• Excellent communication and collaboration skills
• English level: Advanced (C1) or higher