Senior Software Engineer

It's fun to work in a company where people truly BELIEVE in what they're doing!

Fullsteam is a leading provider of vertical software and embedded payments technology dedicated to helping businesses flourish by providing their customers with seamless experiences. With a dynamic and growing team of over 1,900 employees, we are committed to driving innovation and delivering best-in-class software and payment solutions that empower small and medium-sized businesses across numerous industries. Our purpose is to help our customers grow their businesses and delight their customers. Join us and be a part of a forward-thinking company that values growth, excellence, and the success of our clients.

NumberCruncher, a QuickBooks Gold partner, part of Fullsteam, is a leading provider of inventory and order management software for the QuickBooks community. Founded in 1999, NumberCruncher was the first developer to invest in the QuickBooks SDK (software development kit) from Intuit. Our mission is to provide innovative, scalable, and cost-effective inventory management solutions that solve real world business issues, resulting in total customer satisfaction, increased profitability and competitive advantage.

Thousands of manufacturers and wholesale distributors rely on NumberCruncher solutions to manage their everyday business activities across the globe. From inventory control to production management to order processing and fulfillment, these solutions are unmatched in the marketplace, setting the standard for QuickBooks inventory add-ons for the manufacturing and wholesale distribution markets. The NumberCruncher team draws from a wide range of manufacturing management, wholesale/distribution, technology and accounting expertise. We not only provide the software but the 2 implementation, training and ongoing support to help our customers achieve maximum results from our solutions.

We’re looking for a skilled C#/.NET Developer to join the NumberCruncher development team and help accelerate product enhancements and innovation. The ideal candidate is passionate about building scalable, reliable software and thrives in a collaborative environment. You’ll work closely with our product and support teams to design, develop, and maintain modern web applications that power our business software solutions.

Primary Responsibilities:

• Design, develop, test, and maintain web and desktop applications using C#, ASP.NET, ASP.NET Core, and .NET Windows Forms.
• Build and maintain RESTful APIs and web services to support integrations and internal tools.
• Collaborate with the product team to translate business requirements into clean, efficient, and maintainable code.
• Utilize Entity Framework and SQL Server for database design, optimization, and data access.
• Implement responsive UI components using Bootstrap, JavaScript, jQuery, and AJAX.
• Manage source control and workflow using Git and Jira.
• Ensure application security, scalability, and performance best practices.
• Debug, troubleshoot, and resolve application issues quickly and effectively.
• Participate in code reviews and contribute to continuous improvement of development processes.

Skills & Competencies:

• Technical Expertise: Strong proficiency in C#, .NET Framework, .NET Core, ASP.NET MVC, and Web API.
• Frontend Development: Hands-on experience with Bootstrap, JavaScript, jQuery, AJAX, and responsive design principles.
• Database Development: Proficient in SQL, Entity Framework, and relational database design.
• Tools & Workflow: Experience using Visual Studio / Visual Studio Code, Git, and Jira for version control and task management.
• API Development: Skilled in designing and consuming RESTful APIs and working with JSON data structures.
• Problem Solving: Strong debugging skills and ability to identify and resolve performance issues.
• Collaboration: Excellent communication and teamwork skills with an ability to work in a fast-paced environment.
• Adaptability: Comfortable learning new technologies and frameworks to support evolving business needs.

Minimum Qualifications:

• 4+ years of professional experience developing applications with C# and the .NET Framework / .NET Core
• Proven experience building and consuming RESTful APIs
• Hands-on experience with ASP.NET MVC, Web API, and Entity Framework
• Strong knowledge of SQL and experience writing efficient queries and stored procedures
• Familiarity with front-end technologies such as JavaScript, jQuery, AJAX, and Bootstrap
• Proficiency using Git for version control and Visual Studio / Visual Studio Code as primary IDEs
• Experience working in Agile or Scrum development environments with Jira or similar tools
• Excellent problem-solving, debugging, and communication skills

Fullsteam supports an inclusive workplace that values diversity of thought, experience, and background. Fullsteam is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, ancestry, age, physical or mental disability, sex, sexual orientation, gender identity/expression, pregnancy, veteran status, marital status, creed, status with regard to public assistance, genetic status or any other status protected by federal, state, or local law.