Senior Software Engineer (VB6 / Legacy Modernization)

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Software Engineer (VB6 / Legacy Modernization) in Brazil.

You will join a high-impact engineering environment focused on modernizing large-scale, mission-critical government software used across hundreds of municipalities in the United States. In this role, you will work directly with a complex VB6 legacy system that remains essential to daily public sector operations, contributing to its gradual evolution toward modern architectures. Your work will combine deep legacy code understanding with hands-on development in Python and SQL, supported by AI-assisted engineering workflows. You will collaborate closely with distributed engineering teams, helping to improve system reliability, performance, and maintainability. The role requires strong problem-solving skills in production environments and the ability to navigate complex, long-lived codebases. This is a unique opportunity to work on meaningful modernization challenges in a fully remote, international engineering setup.

Accountabilities:

• Maintain, analyze, and incrementally modernize a large VB6 legacy codebase supporting government operations.
• Use AI tools to understand, document, and refactor complex legacy systems.
• Develop new features and services using Python and SQL alongside existing system components.
• Diagnose and resolve production issues in multi-tenant, mission-critical environments.
• Work with relational databases, optimizing queries and supporting scalable data models in SQL Server.
• Collaborate with engineering teams to ensure smooth integration between legacy and modern components.
• Support incremental migration strategies from legacy technologies to modern architectures.
• Contribute to system reliability, debugging, and performance improvements across the platform.
• Participate in code reviews, technical discussions, and architecture evolution initiatives.
• Leverage AI-powered development tools as part of daily engineering workflows.

Requirements:

• Strong experience working with large and complex legacy codebases.
• Solid proficiency in SQL Server and relational database design.
• Ability to read, understand, and maintain legacy technologies such as VB6 and COM/ActiveX.
• Strong debugging skills in production-grade, distributed systems.
• Hands-on experience using AI-assisted development tools (e.g., Copilot, Cursor, Claude Code, or similar).
• Strong analytical thinking and structured problem-solving abilities.
• Experience working in multi-tenant or enterprise-scale environments.
• Ability to work independently in remote, distributed teams.
• Good communication skills and collaborative mindset.

Nice to have:

• Experience with GIS technologies such as ESRI MapObjects or ArcSDE.
• Familiarity with CI/CD tools like Jenkins or GitHub Actions.
• Python scripting for automation, tooling, or system integration.
• Prior experience in legacy-to-modern system migration projects.
• Exposure to cloud or distributed system modernization initiatives.

Benefits:

• 100% remote work environment.
• Long-term international projects with stable engagement.
• Compensation in USD.
• Paid time off (PTO).
• English lessons and continuous learning support.
• Technical training and professional development opportunities.
• Home office (WFH) budget support.
• Career coaching and growth support.
• Opportunity to work on impactful public sector modernization projects.
• Collaborative engineering culture with direct product and technical ownership.

How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! Why Apply Through Jobgether? Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. #LI-CL1