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Senior Full Stack Developer (Java + React)

Sigma Software

São Paulo, State of São Paulo, Brazil full-time July 06, 2026
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Vacancy Description

Job Description

  • Design, develop, and implement large-scale distributed systems to handle substantial data volumes, ensuring scalability, low latency, and fault tolerance
  • Implement APIs and event-driven solutions to meet system requirements and enhance functionality
  • Create and execute comprehensive unit tests, API tests, regression tests, and performance tests to ensure the reliability and efficiency of the system
  • Utilize modern frontend frameworks like React for web development
  • Optimize solutions for scalability, reliability, and high performance
  • Collaborate closely with cross-functional teams to promptly address and resolve production incidents, ensuring minimal downtime and swift recovery

Qualifications

  • 5+ years of experience in software development with object‑oriented programming languages, specifically Java
  • Solid hands-on experience with frontend frameworks, specifically React
  • Ex...

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