Principal Software Engineer Jobs in O'Fallon, IL (2,203)
Sr. Architect, Enterprise - Archimedes
Principal Systems Safety Engineer
Electrical Project Engineer | St Louis, MO
Senior Technology Engineer
Senior Rail Systems Safety Architect
Principal Software Engineer
Principal Software Engineer
Principal Systems Safety Engineer
Senior AI Principal Technical Product Manager
Principal Software Engineer
Principal Software Engineer-Agentic AI
Principal Software Engineer Agile - Software Engineering or Dev Ops
Lead Software Developer
T-7 Chief Software Engineer
Senior Software Architect
Lead Software Engineer-Developer
Lead Software Developer
St. Louis Senior Software Architect - Lead & Microservices
Senior Cloud-Native Software Architect & Tech Leader
Sr. Firmware Engineer
Water/Wastewater Project Engineer
Principal Electrical Engineer
DevOps Architect - St. Louis, MO
Sr Principal Software Engineer
Principal Software Engineer
Principal Software Engineer - Embedded Communications (Onsite)
Principal Software Engineer, Product Owner/CAM (Onsite)
Senior Principal Software Engineer - Hybrid (Payments/AI)
Principal Software Lead Engineer - Embedded Communications (ONSITE)
T-7 Chief Software Engineer
Chief Software Engineer, Avionics & Mission Systems Lead
Software Engineer Principal (AI/Agentic AI/Python)
Principal Software Engineer
Job Description
Working as a Principal Software Engineer in O'Fallon, IL
There are 2,203 Principal Software Engineer opportunities available in O'Fallon, IL all with unique requirements.
The Principal Software Engineer automates the software build and delivery process, increases the engineering team's efficiency, and improves overall quality by defining the technical standards for our development and deployment tools. He/She examines existing technologies at an organization to determine which ones can benefit our products and solutions, evaluates emerging technologies aimed at simplifying software engineering tasks (e.g. code generation, refactoring), and then works with those efforts to make best use of them in Microsoft's internal development efforts.
Principal Software Engineer jobs near O'Fallon, IL
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