Sr .NET Developer

Overview

Job Title: Sr AS400 Developer

Location: Hybrid - King of Prussia, PA (4 days onsite/1 day remote)

Job Type: Independent Contract (Contractor / Non-Employee)

Start Date: ASAP

Pay Rate: $68-70/hr 1099 / C2C

Contract Length: 12+ Months

Role Summary

We are seeking an experienced Senior .NET Developer with strong technical expertise and demonstrated leadership capabilities to lead a team of developers while remaining actively involved in software design, development, and delivery. The ideal candidate will be a hands-on technical leader who can drive architectural decisions, mentor team members, and collaborate with business stakeholders to deliver high-quality enterprise applications.

Responsibilities

Key Responsibilities

Technical Leadership

• Lead the design, development, and deployment of scalable .NET applications and services.

• Define and enforce software development standards, best practices, and coding guidelines.

• Conduct code reviews and provide constructive feedback to development team members.

• Evaluate and recommend technologies, frameworks, and tools that support business objectives.

• Drive application architecture, performance optimization, and security initiatives.

Team Management

• Manage, mentor, and develop a team of software developers.

• Assign and prioritize workload to ensure project milestones are achieved.

• Support hiring efforts, including interviewing, onboarding, and performance evaluations.

• Foster a collaborative, high-performing, and accountable team culture.

• Provide technical coaching and career development guidance.

Software Development

• Design, build, test, and maintain enterprise-grade applications using Microsoft technologies.

• Develop RESTful APIs, web applications, and backend services.

• Troubleshoot and resolve complex technical issues.

• Participate in Agile ceremonies, sprint planning, and release management activities.

• Collaborate with QA, DevOps, Product Owners, and business stakeholders throughout the software development lifecycle.

Qualifications

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience).

• 8+ years of professional software development experience using Microsoft technologies.

• 3+ years of experience leading, mentoring, or managing development teams.

• Strong experience with:

• C#

• .NET Framework and .NET Core/.NET 8+ ASP.NET MVC and ASP.NET Core

• REST API development

• SQL Server and database design

• Entity Framework

• Azure cloud services

• Git source control

• Experience with Agile/Scrum software development methodologies.

• Strong understanding of software architecture, design patterns, and best practices.

Preferred Qualifications

• Experience with Azure DevOps and CI/CD pipelines.

• Experience with containerization technologies such as Docker and Kubernetes.

• Knowledge of microservices architecture.

• Experience with front-end frameworks such as Angular, React, or Vue.js.

• Experience in cloud-native development and modern application modernization initiatives.

• Microsoft Azure certifications are a plus.

Key Competencies

• Leadership and team development

• Strategic and analytical thinking

• Problem-solving and decision-making

• Excellent communication and stakeholder management

• Project planning and execution

• Collaboration and relationship building

Pay Range

USD $68.00 - USD $70.00 /Hr.

Submit a Referral (

Can't find the right opportunity?

Join ourTalent Community ( orLanguage Services Talent Community ( and be among the first to discover exciting new possibilities!

Software Powered by ICIMS (

Location US-PA-King of Prussia

ID 2026-4140

Category Information Technology

Position Type Independent Contractor

Remote No

Clearance Required None