Senior Application Developer - .NET, APIs & SDLC

Banco Santander SA; Wisconsin; Hybrid; USD 77,000 - 130,000; Full time

Job summary

Candidates should have at least 3+ years’ IT experience, proficiency in .NET Core, C#, Jira, and VMware, and strong technical writing and communication skills. The role emphasizes teamwork, rapid learning, and effective problem solving.

Qualifications

• 3+ years in Information Technology or equivalent in application development.
• 3+ years experience with .NET Core, C#, PowerShell, SQL, VB, APIs and Jira.
• 3+ years experience providing IT systems or applications support.
• 3+ years experience writing technical documentation for both technical and nontechnical audiences.
• Analytical and problem solving skills.
• Basic communication skills.
• Ability to work independently and collaboratively.
• Ability to learn new technologies.

Responsibilities

• Develop and maintain software applications to meet project schedules.
• Identify and resolve basic application issues and bugs; escalate complex issues to management.
• Configure and administer systems or applications to ensure changes are planned, executed and verified.
• Provide guidance and training to less experienced IT Specialists.
• Analyze user stories and translate to technical solutions.
• Assist in special projects and participate in implementations, upgrades, and conversions.

Skills

IT experience

C#

.NET Core

PowerShell

SQL

Jira

Scrum

Vendor APIs

Education

Bachelor's Degree

Tools

VMware

Job description

Candidates should have at least 3+ years’ IT experience, proficiency in .NET Core, C#, Jira, and VMware, and strong technical writing and communication skills. The role emphasizes teamwork, rapid learning, and effective problem solving.