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Protobuf Cleanup Engineer at JeffreyM Consulting. Overview:. Our client, a leader in cloud-based storage and collaboration technology, is seeking a seasoned . Protobuf Cleanup Engineer. with deep expertise in . Protocol Buffers (protobuf). and . Go (Golang). to support a critical modernization effort within their core metadata infrastructure team. This contractor will play a key role in refactoring legacy protobuf implementations, replacing GoGoProto dependencies with modern, standard tooling to ensure long-term service scalability, maintainability, and security.. This is an opportunity to contribute to the foundation of a large-scale, highly distributed system that manages billions of files and directories across a global user base.. . Location:. Remote (U.S.), W2 Contractor. . Duration:. through 12/31/2025. . Type:. Contract. . Industry:. Cloud Storage / Platform Infrastructure. Key Responsibilities:. . Audit and identify all current usages of . GoGoProto. extensions in protobuf definitions.. . Migrate .proto files to use standard protobuf options, removing deprecated or custom GoGoProto constructs.. . Regenerate protobuf code using modern, supported tools (e.g., protoc, protoc-gen-go), ensuring compatibility with the client’s Go/gRPC infrastructure.. . Refactor Go-based services to account for changes in code generation, particularly where GoGoProto-specific behaviors were in use (e.g., custom JSON serialization, field annotations).. . Validate code changes through testing and integration with live-tier services.. . Collaborate with internal engineering teams to align on changes, unblock development workflows, and avoid regressions.. . Document migration steps, tooling processes, and best practices to support long-term maintainability and knowledge sharing.. . . Proven experience working with . Protocol Buffers. in production Go/gRPC environments.. . Strong proficiency in . Golang. , including experience with code generation, interfaces, and concurrency patterns.. . Familiarity with . GoGoProto. and its ecosystem is strongly preferred.. . Experience working in large, production-critical codebases within service-oriented architectures.. . Ability to work independently, proactively solve problems, and communicate effectively across distributed teams.. . Comfort navigating infrastructure-level projects with broad cross-functional impact.. . Compensation Range:. $50-$54/hr. ** This pay range is Client-specific for the opening advertised. The identity of the Client will be disclosed if you are selected to move forward in the hiring process. **. Company Location: United States.