Senior Full-Stack Software Engineer — Manufacturing Systems (ERP/MES)
Baxter AerospaceAbout the Role We are seeking a full-time Senior Full-Stack Software Engineer to lead the technical design, development, and ongoing support of an internal manufacturing and operations platform. The platform will support supply chain, inventory, purchasing, material planning, production execution, and traceability. This person must be comfortable evaluating an existing codebase, improving established software, and designing new systems. This is a senior, hands-on engineering role requiring demonstrated experience delivering and maintaining production business applications. The engineer will work closely with the Supply Chain & Operations Software Manager, who will identify operational needs and establish priorities. The engineer will own technical implementation, communicate tradeoffs, and deliver reliable software in manageable phases. Key Responsibilities Partner with the Supply Chain & Operations Software Manager and business users to understand workflows, document requirements, and translate operational needs into maintainable software. Evaluate the existing B4Bridge application, source code when available under license, database structure, and integrations to help determine an appropriate development approach. Design, develop, test, and maintain frontend interfaces, backend services, APIs, and relational databases. Extend and refactor an existing licensed application or establish the architecture and foundation for a new platform. Develop capabilities for part and product records, bills of materials, revision control, purchasing, receiving, inventory, material allocation, work orders, and production reporting. Implement serial and lot traceability, material consumption, quality status handling, and auditable transaction history. Protect data integrity through database constraints, transaction management, concurrency controls, validation, and reliable error handling. Build practical interfaces for office and shop-floor users, including search, data entry, reporting, and operational dashboards. Integrate with approved business systems and develop tools for data import, export, migration, and reconciliation. Implement authentication, role-based authorization, approval workflows, and audit logging. Establish automated tests and deployment pipelines; manage application releases and database changes with appropriate validation and recovery procedures. Diagnose production issues, improve performance, and maintain application monitoring and technical documentation. Work with IT and security personnel to deploy and support the platform in company-approved environments. Use approved development tools and follow company requirements for protecting proprietary, sensitive, and export-controlled information. Required Qualifications Bachelor’s degree in computer science, software engineering, or a related field, or equivalent professional experience. Five or more years of professional software development experience, including substantial responsibility for production business applications. Demonstrated ability to independently deliver full-stack application features from requirements and database design through deployment and ongoing support. Strong backend development skills in C#/.NET or a comparable application framework, with the ability to work within an existing technology stack. Proficiency in JavaScript/TypeScript and experience with a modern frontend framework such as React, Angular, or Vue. Strong SQL and relational database design skills, including schema design, indexing, query optimization, transactions, and database migrations. Experience developing complex business applications involving inventory, order management, manufacturing, supply chain, financial transactions, or comparable workflows where data accuracy and auditability are essential. Experience reading, debugging, extending, and refactoring an unfamiliar codebase. Experience designing and integrating APIs and implementing reliable background processing. Wo…