Senior IT Applications Engineer - Full-Stack & AI-Driven Dev

Cleveland-Cliffs Steel Corporation; West Chester (Chester County); On-site; USD 110,000 - 140,000; Full time

Job summary

Cleveland-Cliffs Inc. in West Chester, OH is seeking an experienced Senior IT Applications Engineer to join our IT Custom Development team.

The role covers new development and full‑stack support for web and Windows applications using Angular, C#, ASP.NET, Java, Azure, and related tech, with AI tools like Claude Code and Co‑pilot to aid design and coding. You will collaborate with business partners, manage projects, gather requirements, and deliver SDLC artifacts while supporting 24x7 on‑call

Qualifications

• Bachelor’s degree in BIS or equivalent required.
• 7+ years with Angular, C#, ASP.NET, .NET Core, EF, SQL Server and Oracle.
• 7+ years in custom development and SDLC processes.
• Experience with AI tools such as Claude Code and Co‑pilot.
• Proficiency with Microsoft 365 apps.

Responsibilities

• Project management, analysis, design, coding, testing, and issue resolution.
• Understand business processes and supporting tech to meet stakeholder goals.
• Collaborate with partners, IT and vendors to define requirements and support needs.
• Build strong relationships with customers and align with their priorities.
• Gather requirements and develop/modify apps, address interfaces during testing.
• Deliver projects per Change Management and generate SDLC artifacts.
• Use AI tools for design and development of IT solutions.
• Provide timely feedback on issues and requests to improve stability.
• Occasional 24x7 on-call support for enterprise apps and subsystems.

Skills

Leadership

Communication

Teamwork

Problem solving

Education

Bachelor's degree in Business Information Systems or equivalent

Tools

Angular

C#

ASP.NET

NET Core

Entity Framework

SQL Server

Oracle

Azure

Microsoft 365

Power BI

Claude Code

Co-pilot

Job description

Cleveland-Cliffs Inc. in West Chester, OH is seeking an experienced Senior IT Applications Engineer to join our IT Custom Development team.

The role covers new development and full‑stack support for web and Windows applications using Angular, C#, ASP.NET, Java, Azure, and related tech, with AI tools like Claude Code and Co‑pilot to aid design and coding. You will collaborate with business partners, manage projects, gather requirements, and deliver SDLC artifacts while supporting 24x7 on‑call