• Lead the migration of the Volunteer Impact backend from VB.NET/.NET Framework to C#/.NET 10, defining the migration approach and executing it incrementally against a live production system • Modernize a custom security framework (70+ custom attributes) into something that works on the new stack, with zero authorization bypasses • Strengthen the existing CI/CD pipeline and, with our quality engineering function, wire in the gates that catch functional and performance regressions before they reach production • Ship migrated areas to production independently and incrementally while the legacy application keeps running • Become the second engineer who can independently cut, validate, and deploy a production release • Identify, evaluate, and replace legacy dependencies that don’t have a path forward to modern .NET, without introducing functional or performance regressions • Make the technical sequencing calls: which areas migrate first, which dependencies get replaced when, and where automated conversion is viable vs. manual rewrite • Lay the foundation for the team to grow by modernizing the stack to one that any C# developer can contribute to

• Requires specialized depth and/or breadth of expertise in application development to manage specialized system applications throughout their lifecycle to ensure application solutions meet business needs. • Influences and works to solve complex problems; analyzes more complex business requirements and user requirements and develops advanced, innovative and useful software solutions. • Works independently with guidance in only the most complex situations. • May lead complex or cross-functional projects or manage relationships with vendors/contractors. • Participates in all aspects of product development from advanced, detailed programming to high-level, complex system design. • Owns the architecture and technical design for new initiatives/enhancements, creates proof of concepts, leads/mentors teams, maintains strong connection with the external teams. • Enforces quality and best practices, supports production issue and analysis, ensures project execution within the budget, provides estimate for the features and epics, and supports pre-grooming. • Performs other duties as assigned.

• Real systems that enterprise clients depend on. • System, Database and API design as a first-class skill. • Event-driven microservices on GCP Pub/Sub. • Webhook-triggered survey automation engine. • Resilient, observable services. • Security and SSO integration for enterprise clients with complex credential and access models. • Permission and access control systems that reflect matrix organizational hierarchies. • An integration layer that connects enterprise data sources to our platform through well-designed service interfaces.

• Develop, optimise, and maintain backend services using Python and Golang. • Implement serverless solutions that ensure scalability, high availability, and cost efficiency. • Design and integrate AWS services such as Lambda, DynamoDB, RDS (PostgreSQL), Step Functions, API Gateway, and other serverless ecosystem components. • Implement authentication/authorisation mechanisms and follow API security best practices. • Actively participate in the technical definition, design, and implementation of new features and platform enhancements. • Collaborate with the development team to ensure adherence to engineering best practices, code quality standards, and architectural guidelines. • Troubleshoot and resolve complex technical challenges related to performance, security, reliability, and scalability. • Contribute to CI/CD processes and ensure efficient, reliable, and automated deployments. • Support the continuous improvement of backend architecture and cloud-native solutions. • Participate in code reviews and provide technical guidance to ensure maintainable and high-quality software delivery.