Senior Java Developer

SigmaSoftware2

Brasília, DF, Brazil Remote permanent

Posted: March 11, 2026

Required Skills

Job Description

Are you passionate about building high-performance, scalable systems? We at Sigma Software are looking for a Senior Java Developer to join our team and work on an innovative platform for a leading pet products marketplace. This is a full-time role with the flexibility to work remotely from anywhere in Brazil.

As a Senior Java Developer, you will be part of a dynamic, cross-functional team delivering cutting-edge solutions that enhance customer engagement and revolutionize the shopping experience for pet lovers.

Why join us? At Sigma Software, you will work with modern technologies, contribute to impactful projects, and enjoy a supportive environment that values professional growth and innovation.

CUSTOMER

Our client is a leading marketplace specializing in pet products, serving millions of pet owners worldwide. Known for its innovative approach to e-commerce, the company offers a vast range of products and services tailored to enhance the lives of pets and their owners. With a strong focus on customer engagement and seamless shopping experiences, they are recognized as a top-tier player in the pet retail industry.

PROJECT

The project involves developing a customer-focused platform designed to revolutionize the shopping experience for pet lovers. This platform will enhance customer engagement, streamline product discovery, and improve access to a wide range of pet products.

• Design, develop, and implement large-scale distributed systems capable of handling substantial data volumes with scalability, low latency, and fault tolerance
• Architect and implement APIs and event-driven solutions to meet system requirements and enhance functionality
• Diagnose and resolve complex production issues across services and technology stack, delivering both code and data fixes
• Create and execute comprehensive unit, API, regression, and performance tests to ensure system reliability and efficiency
• Collaborate closely with cross-functional teams to address and resolve production incidents promptly, ensuring minimal downtime

• 7+ years of experience in software development
• Proficiency in Java with expertise in frameworks such as Spring Boot WebFlux and Hibernate (AuroraDB)
• Hands-on experience with GraphQL
• Familiarity with AWS and EKS
• Strong knowledge of CI/CD pipelines and related tools
• Experience designing, building, and deploying scalable, highly available systems
• Knowledge of event-driven architectures and at least one event streaming solution (e.g., Kafka, SNS)
• Proficiency in SQL and NoSQL databases
• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud
• Strong analytical and problem-solving skills
• Excellent communication skills, with English proficiency at C1 level or higher

WILL BE A PLUS

• Experience with microservices architecture
• Experience with containerization tools such as Docker
• Familiarity with monitoring tools like Prometheus and Grafana
• Prior work in e-commerce or marketplace platforms

PERSONAL PROFILE

• Self-driven and detail-oriented
• Passionate about building high-performance systems
• Able to thrive in a fast-paced environment
• Strong collaboration skills with diverse teams
• Adaptable to new technologies quickly

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