Principal Software Architect

Jefferson Wells USA; Appleton (WI); On-site; USD 130,000 - 160,000; Full time

Benefits offered by this job

Medical and Prescription Drug Plans

Dental Plan

Vision Plan

401(k), Plus Match

Weekly Pay

Job summary

Jefferson Wells USA is seeking a Principal Software Architect in Appleton, WI, to lead technical architecture for enterprise software products. This role involves defining cloud-native and API-first strategies and leading the transition from legacy systems.

The ideal candidate will have extensive experience in the Microsoft technology stack and a strong focus on innovative AI-augmented engineering practices. Join a dynamic team and contribute to impactful projects while enjoying comprehensive benefits.

Qualifications

• 10+ years of professional software engineering experience.
• 4+ years in a senior architectural role on SaaS or enterprise platforms.
• Deep expertise in the Microsoft technology stack.

Responsibilities

• Own and shape the technical architecture across the product portfolio.
• Lead the transition to a cloud-native, API-first SaaS platform.
• Collaborate with product teams to establish architectural standards.

Skills

Cloud-native architecture

API design

C#

.NET

ASP.NET Core

SQL Server/Azure SQL

AI-augmented development tools

Education

Bachelor's Degree in Computer Science or related discipline

Tools

Microsoft Copilot

Anthropic suite

Job description

Our client, a leading organization in the technology and enterprise software sector, is seeking a Principal Software Architect to join their team. As a Principal Software Architect, you will be part of the Engineering Department supporting cross‑functional product teams. The ideal candidate will demonstrate strategic thinking, collaborative spirit, and technical leadership, which will align successfully in the organization.

Job Title: Principal Software Architect

Location: Appleton, WI

Responsibilities

• Own and shape the end‑to‑end technical architecture across the company's product portfolio, ensuring alignment with enterprise goals and modernization efforts.
• Lead the transition from legacy systems to a modern, cloud‑native, API‑first SaaS platform, focusing on system design, technology selection, and integration patterns.
• Collaborate closely with technology leadership, product teams, and security experts to establish architectural standards, best practices, and guardrails.
• Define and implement AI‑augmented engineering practices, including safe and effective use of AI tools and frameworks within the development lifecycle.
• Partner with cloud infrastructure teams to design resilient, scalable, and cost‑efficient cloud solutions on Microsoft Azure, supporting platform modernization and operational excellence.

Qualifications

• Bachelor's Degree in Computer Science, Computer Engineering, or a related discipline, or equivalent professional experience.
• 10+ years of professional software engineering experience, including 4+ years in a senior architectural role on SaaS or enterprise platforms.
• Deep expertise in the Microsoft technology stack, including C#, .NET, ASP.NET Core, and SQL Server/Azure SQL.
• Proven experience leading legacy‑to‑modern migration projects, such as monolith decomposition and API extraction.
• Hands‑on experience with AI‑augmented development tools like Microsoft Copilot and Anthropic suite, with a clear understanding of their impact on software architecture.

Benefits

• Opportunity to lead innovative platform modernization initiatives in a dynamic environment.
• Work with cutting‑edge cloud and AI technologies, shaping the future of enterprise software.
• Collaborate with a talented and diverse team committed to excellence and continuous improvement.
• Contribute to impactful projects that support regulatory compliance and data security.
• Be part of a forward‑thinking organization that values strategic foresight and entrepreneurial spirit.
• Medical and Prescription Drug Plans
• Dental Plan
• Vision Plan
• Health Savings Account
• Health Flexible Spending Account
• Dependent Care Flexible Spending Account
• Supplemental Life Insurance
• Short Term and Long Term Disability Insurance
• Business Travel Insurance
• 401(k), Plus Match
• Weekly Pay