Principal Software Engineer

About the role

We are looking for a Principal Software Engineer to join our growing company! This role will be based out of Campinas or São Paolo and will be part of our Implementation Engineering department supporting projects world wide. 

Role and Responsibilities

• Software development of NetCracker OSS RnD product modules and implementation activities in delivery projects;
• Design, implement, and evolve core modules of Netcracker OSS R&D products and support their implementation in delivery projects.
• Lead the design and development of new modules from scratch, as well as major new features for existing modules.
• Own the technical architecture of complex, distributed enterprise systems and drive the evolution of our microservices-based platform.
• Provide technical leadership and best practices across development and implementation projects, including performance, scalability, reliability, and security.
• Conduct deep code and design reviews, including analyzing complex merge requests, understanding code written by other engineers, and assessing impact across large codebases.
• Troubleshoot urgent production incidents and critical customer issues, driving root cause analysis and permanent fixes.
• Troubleshoot and optimize high-load, distributed applications; identify and resolve performance bottlenecks and ensure proactive performance monitoring.
• Define, implement, and promote engineering best practices in coding, testing, observability (logging, monitoring, tracing), and CI/CD.
• Collaborate closely with product management, solution architects, operations, and customer teams to translate business requirements into scalable technical solutions.
• Mentor and coach senior and mid-level engineers, fostering a culture of technical excellence, ownership, and continuous improvement.
• Stay current with modern AI tools and technologies and integrate them into day-to-day engineering workflows to improve productivity and quality.

Required Experience 

• 7+ years of professional experience working with software engineering with Java or Golang
• Strong hands on experience in at least one of: Java or Go; experience with both is a strong plus.
• Deep experience designing and building microservices based systems running on Kubernetes and Docker in production environments.
• Solid expertise with Apache Kafka, including topic partitioning, event streaming, and asynchronous integrations.
• Strong experience with both relational and non-relational databases; deep hands on expertise with PostgreSQL and/or other major databases is a must.
• Experience with graph databases as ArangoDB, Neo4j or similar is a big plus.
• Proven track record in designing, implementing, and operating large scale, distributed enterprise systems.
• Experience with observability practices and tools (logging, metrics/monitoring, tracing) for complex distributed services.
• Experience using modern AI tools (e.g., for coding assistance, testing, analysis) and integrating them into regular engineering activities.
• Self-driven, fast learner who demonstrates strong ownership and can lead initiatives end to end with minimal supervision.
• Excellent communication and collaboration skills, able to influence technical decisions across teams and clearly articulate complex technical concepts.
• Understanding of the telecommunications domain is a significant plus.

Education  

• Bachelor’s degree in Computer Science, Information Technology, Electronics/Telecommunications, or a related field.

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