Senior Sage Developer

The Senior Sage 300 Developer is a senior specialist IC role aligned with the Senior Software Engineer level. This role owns the full Sage 300 ERP ecosystem — custom development, complex integrations, SQL database design, and business reporting — bridging legacy VB6 and modern C#/.NET environments. The ideal candidate takes full end-to-end ownership of deliverables, combines deep technical expertise with strong cross-functional collaboration, and consistently delivers reliable, high-quality ERP solutions that drive operational efficiency and business success.

• Design, develop, test, deploy, and support custom Sage 300 ERP solutions — including macros, customizations, and enhancements.
• Build and maintain .NET applications using the Sage 300 COM API; develop Python-based solutions within Orchid Extender and related frameworks.
• Maintain, enhance, and support existing VB6 components; migrate to .NET where appropriate and feasible.
• Design and support complex integrations between Sage 300 and third-party systems — including CRM, eCommerce, WMS, shipping, payment gateways, and cloud services — using REST APIs, Swagger/OpenAPI, and data synchronization technologies.
• Design, optimize, and maintain Microsoft SQL Server databases including stored procedures, views, functions, and complex queries with a focus on performance tuning.
• Build and maintain custom reports, dashboards, and BI solutions using Crystal Reports and Sage Intelligence.
• Collaborate with cross-functional teams — including business stakeholders, finance, operations, IT, and vendors — to gather requirements, define solutions, and drive effective delivery.
• Participate in solution architecture discussions and provide practical, scalable technical recommendations aligned with business needs.
• Conduct code reviews, mentor junior developers, and uphold development standards and best practices.
• Identify and implement opportunities for automation, process improvement, and system optimization.
• Maintain clear technical documentation, integration specifications, and support documentation.
• Provide production support, resolve critical business issues, and take full ownership of deliverables from design through post-production.
• Stay current with Sage 300 technologies, integration tools, and industry best practices.

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field.
• 7+ years of professional software development experience with significant, hands‑on Sage 300 ERP expertise — including expert‑level knowledge of the COM API, Web APIs, and core ERP architecture and modules.
• Advanced proficiency in VB6 (legacy maintenance), C# / .NET Framework (new development), and Python for Orchid Extender and Sage 300‑related frameworks.
• Advanced expertise in Microsoft SQL Server, T‑SQL, stored procedures, and database design, with a strong foundation in software architecture, integration methodologies, and performance optimization.
• Proven experience designing and delivering enterprise integrations between Sage 300 and third‑party systems — including CRM, eCommerce, WMS, shipping, financial, and payment platforms — using REST APIs, Swagger/OpenAPI, and data synchronization technologies.
• Experience building custom reporting and BI solutions using Crystal Reports and/or Sage Intelligence.
• Strong cross‑functional collaboration and communication skills with both technical and non‑technical stakeholders.
• Preferred:
  Experience in manufacturing, distribution, wholesale, or retail ERP environments; familiarity with cloud platforms, modern integration architectures, source control (Git), and VB6‑to‑.NET migration.

• Sage 300 ERP
  : COM API, Web APIs, Macros, Orchid Extender — expert level; custom…