Senior Applications Developer; C# ​/SQL Server Onsite

Hi-Tech Fasteners, Inc. (HTF) has been a leading master-stocking distributor of fasteners, electronic hardware and components for over 30 years. By building strategic and dependable customer and manufacturer relationships, HTF has steadily grown from a local distributor to one with an international presence and reach. Through our distribution facilities in both the United States and Canada, we strive to meet our goal of exceptional service and “delivering the parts our customers need, when they need them.”

For over 30 years, HTF has been a trusted master-stocking distributor of electronic hardware, fasteners, and components. As an ISO-certified supplier, we provide both standard and non-standard parts, ensuring fast, reliable delivery to customers worldwide. With distribution centers in the U.S. and Canada, we stock top brands and support industries including aerospace, telecom, defense, medical, and industrial manufacturing. Our operations run on Epicor Prophet 21 (P21) backed by SQL Server, alongside a B2B eCommerce storefront and a growing set of internal applications.

We are hiring a Senior Applications Developer to own that portfolio: the business rules, the integrations, the custom applications, and the data layer underneath all of it. This is a senior, hands‑on role with real autonomy. We are looking for a strong C# and SQL Server developer first. Prior Prophet 21 experience is a significant plus, but it is not a requirement — a developer who is fluent in C# and relational data modeling will read the P21 schema and pick up its customization framework quickly, and we would rather hire for engineering judgment than for familiarity with one vendor’s toolset.

You will be the technical authority on how our ERP is extended. That means shipping work yourself, but also making the calls about what gets customized versus configured versus left alone — decisions that either compound into a maintainable system or into an upgrade nightmare.

• Design, build, and maintain C# / .NET applications, services, and integrations that extend P21 and connect it to our eCommerce storefront, middleware, supplier systems, and internal tools.
• Write and optimize complex T-SQL — stored procedures, views, functions, and queries — against the P21 database, including performance tuning where custom logic or reporting load affects production.
• Own the P21 customization portfolio: business rules (Dyna Change), custom screens, and extensions. Decide what belongs as configuration, what belongs as a rule, and what belongs in application code.
• Translate business requirements from Sales, Purchasing, Distribution, and Accounting into working solutions, pushing back where a request is better solved by process change than by code.
• Establish and enforce engineering practice: source control, code review, a real test-to-production path, and documentation of every customization in service.
• Lead upgrade impact assessment — maintain the customization inventory, identify what breaks, and plan remediation ahead of P21 version upgrades.
• Build and maintain reporting and data integrations (SSRS, Power BI, or equivalent) that give the business reliable numbers.
• Serve as technical liaison to Epicor and to third‑party implementation and development partners, holding vendor work to the same standard as internal work.
• Mentor junior technical staff and share knowledge deliberately, so that no system has exactly one person who understands it.

• 7+ years of professional software development experience, with a substantial portion in C# / .NET.
• Advanced SQL Server skills: complex T-SQL, stored procedure development, indexing, execution plan analysis, and performance tuning against large…