Senior React Js Developer Jobs in Detroit, MI (NOW HIRING)

Flex-N-Gate is seeking a full-time Full-Stack Software Developer to join our growing in-house software development team.

This position will primarily support Midas, Flex-N-Gate’s internally developed Manufacturing Execution System. Midas is an enterprise application used in our manufacturing facilities to support production tracking, machine activity, downtime, scrap, quality, operational reporting, and other plant-floor business processes.

The developer will help build new Midas capabilities, maintain and improve existing functionality, and troubleshoot issues across the application, database, and manufacturing-system integration layers.

Our primary technology stack includes C#, ASP.NET Core, Entity Framework Core, Microsoft SQL Server, Vue.js, JavaScript, and Tailwind CSS.

The ideal candidate is passionate about developing reliable, maintainable software and applying sound programming practices. They should be comfortable learning an established application and manufacturing domain, investigating complex problems, and working with both technical and non-technical stakeholders.

This is a remote position.

• Design, develop, test, and deploy full-stack features for the Midas Manufacturing Execution System.
• Build and maintain applications using C#, .NET, ASP.NET Core, Entity Framework Core, SQL Server, Vue.js, and JavaScript.
• Develop software that supports shop-floor and manufacturing business processes.
• Create and maintain REST APIs, background services, database models, reports, dashboards, and user interfaces.
• Maintain existing software systems through bug fixes, performance improvements, refactoring, and enhancements.
• Investigate production issues involving application code, databases, integrations, and plant-floor data.
• Work with production, quality, engineering, IT, and plant leadership to understand business needs and translate them into practical software solutions.
• Develop reporting and visualization tools for production, downtime, scrap, quality, OEE, and resource-utilization data.
• Improve application performance, reliability, maintainability, security, and data integrity.
• Participate in technical design discussions, code reviews, testing, documentation, and deployment activities.
• Support the rollout of new Midas features across multiple manufacturing facilities.
• Balance long-term system improvements with the immediate operational needs of active production environments.

• Three or more years of professional web or application development experience.
• Professional experience developing applications with C# and .NET, or substantial experience with a comparable server-side development platform.
• Experience with ASP.NET Core, MVC, or similar application frameworks.
• Experience with Entity Framework Core or another object-relational mapping framework.
• Strong SQL skills, including relational database design, normalization, querying, and troubleshooting.
• Experience with Microsoft SQL Server, MySQL, or another enterprise relational database platform.
• Experience with a modern frontend framework such as Vue.js, React, or Angular.
• Strong JavaScript, HTML, and CSS skills.
• Experience designing, building, or consuming SOAP and REST APIs.
• Understanding of the software development lifecycle, including design, implementation, testing, deployment, and maintenance.
• Strong debugging, analytical, and problem-solving skills.
• Ability to investigate and resolve technical issues with minimal guidance.
• Strong attention to detail and a commitment to producing reliable, maintainable software.
• Post-secondary education in computer science, software engineering, or a related field, or equivalent professional experience.

• Experience with Vue.js and the Vue ecosystem.
• Experience with .NET 6 or later.
• Experience with Microsoft SQL Server and Entity Framework Core.
• Experience using Git and GitHub or another distributed version-control platform.
• Experience with Tailwind CSS or another utility-based CSS framework.
• Experience with Sass, Less, or another CSS preprocessor.
• Experience with Chart.js or other charting and data-visualization libraries.
• Experience with automated testing, continuous integration, and continuous deployment.
• Experience optimizing SQL queries, database indexes, and application performance.
• Experience working with high-volume production, event, or time-series data.
• Knowledge of user experience and user-interface design principles.
• Experience with enterprise applications deployed across multiple locations.
• Experience supporting, modernizing, or extending established software systems.
• Knowledge of Manufacturing Execution Systems, Enterprise Resource Planning systems, industrial automation, or plant-floor integrations.
• Familiarity with PLC-generated data, machine connectivity, or manufacturing equipment integrations.
• Knowledge of the automotive or other manufacturing industries.
• Bachelor’s degree in computer science, software engineering, or a related field.

The successful candidate will:

• Take ownership of problems from investigation through implementation and deployment.
• Be comfortable working within and improving an established enterprise application.
• Be curious about manufacturing processes and how software can improve plant operations.
• Be able to work independently while collaborating closely with other developers and business stakeholders.
• Be willing to learn new technologies, systems, and business processes.
• Understand that software used in active manufacturing environments must be dependable, accurate, and supportable.

• Build software that has a direct and visible impact on manufacturing operations.
• Work on an internally owned enterprise platform used across multiple manufacturing facilities.
• Develop substantial features from initial requirements through production rollout.
• Solve interesting problems involving software, databases, machines, production data, and real-world operations.
• Help shape the future architecture, functionality, and user experience of a growing Manufacturing Execution System.