Lead Full Stack Developer

Lead Full Stack Developer ColdSpring Cold Spring, MN *ONSITE Requirement Do you take pride in architecting scalable solutions to deliver high-impact applications? Are you passionate about working across the stack—from crafting intuitive front-end experiences to optimising back-end performance? Ready to mentor developers and drive best practices that shape the future of our technology? ABOUT ColdSpring A family-owned business since 1898, Coldspring is a leading quarrier and fabricator of natural stone and bronze for architectural, memorial, residential, and industrial markets. Headquartered in Cold Spring, Minnesota, with a primary manufacturing facility and bronze foundry, the company employs 800 people nationwide, operating 30 quarries and multiple fabrication sites. Coldspring’s success stems from the dedication of its team, a commitment to innovation, and a focus on meeting and exceeding customer expectations while upholding corporate sustainability. JOB DESCRIPTION We're looking for a highly experienced and dedicated Lead Full Stack Developer to take ownership of a custom suite of software developed in house. This is a key technical leadership position for an accomplished technologist who thrives on solving complex problems and guiding teams. You will lead a small, focused team of developers and a QA specialist, driving development across the full Microsoft stack and modern web technologies. JOB DETAILS Starting salary: $95K+ with comprehensive benefit package Regular onsite requirement EDUCATION AND EXPERIENCE: Minimum 10+ years of professional software development experience Minimum 5+ years of experience in a technical leadership capacity, with a proven track record of mentoring developers, reviewing code, and leading technical projects Core Programming (C# / OOP): Strong proficiency in C# is preferred, but we welcome applicants with deep expertise in equivalent Object-Oriented languages (e.g., Java, C++). If you understand strong typing, inheritance, and design patterns, we trust you can learn our stack. Frontend Frameworks (Angular): Experience with Angular is a plus, but we value proficiency in any modern component-based JavaScript framework (e.g., React, Vue, Svelte). We are looking for developers who understand state management, component lifecycles, and responsive design, regardless of the specific library. ERP & Business Systems (JDE): Exposure to any Enterprise Resource Planning (ERP) system or complex business logic is a plus but not requirement. Job requires minimal interaction with ERP. Database Design & SQL: Proficiency in relational database design and SQL development is required. You must be capable of designing efficient schemas, writing complex queries, and utilizing ORM tools to build performant data-driven applications. Problem Solving: A track record of writing clean, maintainable, and testable code. We value engineering fundamentals and the ability to adapt to new tools over rote memorization of specific syntax. RESPONSIBILITIES Technical Leadership: Serve as the technical authority and primary hands-on developer, setting a high standard for code quality and ensuring the team’s output aligns with architectural best practices. Mentorship & Code Quality: Lead code reviews and provide day-to-day mentorship to junior and mid-level developers, fostering their technical growth and ensuring the delivery of maintainable, high-quality code. Front-End Development: Lead the design and implementation of responsive user interfaces using Angular, TypeScript, JavaScript, and HTML. Back-End Development: Navigate and develop complex server-side logic in C#, including API endpoints and traditional MVC controllers attached to views. Develop and maintain the C# Business Logic Layer (BLL) and the Data Access Layer (DAL), utilizing Entity Framework as the ORM. Database Management: Expertly manage and optimize data interactions within our Microsoft TSQL environment across various SQL databases. Feature Integration: Collaborate on and contribute to the development of application features that include graphical aspects, utilizing web technologies such as Canvas. Systems Integration: Develop and maintain C# middleware and backend services responsible for integrating application data with our ERP system and JD Edwards. Architecture & Standards: Define the technical vision and enforce development best practices across the team. Workflow Management: Lead the team's Agile (Scrum-ban) process, driving ticket tracking using Jira, facilitating planning, and removing technical blockers to ensure smooth workflow. Cross-Functional Collaboration: Serve as the key technical liaison within a larger cross-functional group, including the Product Owner and Marketing team, translating business needs into technical requirements. Coldspring is an Affirmative Action Employer, including Veterans and Individuals with Disabilities.