Demo

Sr. .NET Developer

Randstad Digital Americas
Phoenix, AZ Full Time
POSTED ON 7/26/2026
AVAILABLE BEFORE 8/24/2026
Job Summary

Our client is looking for a Sr. .NET Developer for a hybrid contract role located in Phoenix, AZ.

location: Phoenix, California

job type: Contract

salary: $55 - 60 per hour

work hours: 8am to 5pm

education: Bachelors

Responsibilities

Here is a clean, generalized version of the job description stripped of all client-specific names, state revenue references, and internal organizational values.

Work Environment

  • Remote Status: 90% Remote, 10% Onsite

Position Summary The Senior Applications Developer (.NET Development Team) develops, analyzes, troubleshoots, and supports enterprise .NET-based applications responsible for core financial and accounting systems. As a key member of the development team, this role is responsible for the end-to-end design and implementation of client and server software solutions that align with critical business requirements.

Requirements & Qualifications Education & Experience

  • Bachelor's degree in Computer Science, Information Technology, or a related field; or equivalent combination of education and hands-on professional experience.
  • 8 years of professional programming experience, with at least 3 years focused on full-lifecycle software development.
  • Proven background in designing and developing client/server architectures.
  • AI Tooling & Integration Experience (Required): 1 to 2 years of hands-on software development experience hand-coding application logic using AI-assisted engineering tools (e.g., GitHub Copilot, VS Code AI extensions) and/or programmatically building enterprise features integrated with AWS Bedrock and Anthropic Claude.

Technical Knowledge & Competencies

  • Deep understanding of the Software Development Life Cycle (SDLC), database principles, and unit testing methodologies.
  • Strong grasp of Application Security best practices (OWASP Top 10).
  • Proficiency in RESTful API architecture, Windows Communication Foundation (WCF), and complex XML Schema Definitions (XSD).

Technical & AI Tooling Skills

  • Core .NET Stack: Advanced proficiency with MS Visual Studio, .NET Core, .NET Framework, C#, ASP.NET, MVC pattern, Entity Framework, ADO.NET, and Dependency Injection.
  • Database & Scripting: Strong skills in T-SQL programming, database design, and JavaScript.
  • DevOps & Version Control: Experience using Azure DevOps and/or Team Foundation Server (TFS).
  • AI Tooling Competency: Demonstrated ability to hand-code robust application logic while leveraging AI-assisted coding environments and programmatically developing integrations via modern AI frameworks (e.g., AWS Bedrock, Anthropic Claude).

Core Abilities & Professional Skills

  • Communication & Collaboration: Excellent verbal, written, and listening skills; strong ability to write comprehensive technical documentation.
  • Problem Solving & Autonomy: High degree of self-direction combined with strong analytical skills to break down complex issues, gather data, identify root causes, and engineer effective solutions.
  • Process Improvement: Ability to learn and apply LEAN principles and continuous improvement methodologies within software workflows.

Preferred Qualifications

  • Bachelor's Degree in Computer Science or a related technical discipline.
  • Extensive enterprise-level experience across modern .NET ecosystems.
  • Hands-on DevOps and CI/CD pipeline experience.

Qualifications

Here is a clean, generalized version of the job description stripped of all client-specific names, state revenue references, and internal organizational values.

Work Environment

Remote Status: 90% Remote, 10% Onsite

Position Summary

The Senior Applications Developer (.NET Development Team) develops, analyzes, troubleshoots, and supports enterprise .NET-based applications responsible for core financial and accounting systems. As a key member of the development team, this role is responsible for the end-to-end design and implementation of client and server software solutions that align with critical business requirements.

Requirements & Qualifications

Education & Experience

Bachelor's degree in Computer Science, Information Technology, or a related field; or equivalent combination of education and hands-on professional experience.

8 years of professional programming experience, with at least 3 years focused on full-lifecycle software development.

Proven background in designing and developing client/server architectures.

AI Tooling & Integration Experience (Required): 1 to 2 years of hands-on software development experience hand-coding application logic using AI-assisted engineering tools (e.g., GitHub Copilot, VS Code AI extensions) and/or programmatically building enterprise features integrated with AWS Bedrock and Anthropic Claude.

Technical Knowledge & Competencies

Deep understanding of the Software Development Life Cycle (SDLC), database principles, and unit testing methodologies.

Strong grasp of Application Security best practices (OWASP Top 10).

Proficiency in RESTful API architecture, Windows Communication Foundation (WCF), and complex XML Schema Definitions (XSD).

Technical & AI Tooling Skills

Core .NET Stack: Advanced proficiency with MS Visual Studio, .NET Core, .NET Framework, C#, ASP.NET, MVC pattern, Entity Framework, ADO.NET, and Dependency Injection.

Database & Scripting: Strong skills in T-SQL programming, database design, and JavaScript.

DevOps & Version Control: Experience using Azure DevOps and/or Team Foundation Server (TFS).

AI Tooling Competency: Demonstrated ability to hand-code robust application logic while leveraging AI-assisted coding environments and programmatically developing integrations via modern AI frameworks (e.g., AWS Bedrock, Anthropic Claude).

Core Abilities & Professional Skills

Communication & Collaboration: Excellent verbal, written, and listening skills; strong ability to write comprehensive technical documentation.

Problem Solving & Autonomy: High degree of self-direction combined with strong analytical skills to break down complex issues, gather data, identify root causes, and engineer effective solutions.

Process Improvement: Ability to learn and apply LEAN principles and continuous improvement methodologies within software workflows.

Preferred Qualifications

Bachelor's Degree in Computer Science or a related technical discipline.

Extensive enterprise-level experience across modern .NET ecosystems.

Hands-on DevOps and CI/CD pipeline experience.

Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact HRsupport@randstadusa.com.

Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.

Salary : $55 - $60

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