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Senior Net Developer Jobs in Herndon, VA (NOW HIRING)

Mobomo, LLC

Senior .NET Developer

Washington, DC · On-site

$60.75 - $77.50/hr

We are seeking a full-time, backend-focused Senior .NET Developer to support application modernization initiatives and ongoing maintenance of legacy systems. This role requires a hands-on engineer ...

USM

.Net Developer

Reston, VA

$50.25 - $66.25/hr

The Sr Software Engineer, reporting to our Sr Director of Client Implementation, in our Client Tech Implementation team, will play a critical role in building Desktop & mobile based web applications.

Kaav Inc.

.Net Developer

Washington, DC · On-site

$54.75 - $72.25/hr

As a Senior .NET Developer, you will be responsible for designing, developing, testing, and maintaining software applications and solutions using Microsoft technologies and frameworks. Your primary ...

Two95 International Inc.

Senior .Net Developer

Washington, DC · On-site

$62.25 - $79.25/hr

Senior .Net Developer Location: Washington, DC Position Type: Long term contract Skills and work experience with the following technologies .NET C# - Strong skill required HTML 4.0 - Strong skills ...

Resource Point LLC

.NET Developer

Washington, DC · On-site

$54.75 - $72.25/hr

Washington, DC Duration: 12 Months Our client is looking for an experienced Senior Full Stack .NET Developer to design, develop, and maintain enterprise-level applications using the Microsoft ...

Network Designs

Senior .Net Developer

Alexandria, VA · On-site

$58.75 - $74.75/hr

The Senior .NET Developer's responsibilities include participating in the entire software development life cycle, developing new web applications and supporting legacy systems. This will be a hands ...

Workila

Senior .NET Developer

Mclean, VA

$55.50 - $70.75/hr

The Senior Developer position requires the ability to provide hands-on development skills (primarily ASP .NET and SQL) and direct development team management in both a Waterfall and an Agile Scrum ...

Two95 International Inc.

Senior .Net Developer

Washington, DC · On-site

$62.25 - $79.25/hr

Senior .Net Developer Location: Washington, DC Position Type: Long term contract Skills and work experience with the following technologies • .NET C# - Strong skill required • HTML 4.0 - Strong ...

Navtech

Senior .NET Developer

Washington, DC · On-site

$62.25 - $79.25/hr

I have an opportunity for a "Senior .NET Developer" - (Washington, DC - Remote till COVID). and I am looking for a candidate who can join Immediately if you are interested, reply to me with your ...

Navtech, Inc.

Senior .NET Developer

Washington, DC · On-site

$62.50 - $79.50/hr

I have an opportunity for a "Senior .NET Developer" - (Washington, DC - Remote till COVID). and I am looking for a candidate who can join Immediately if you are interested, reply to me with your ...

Network Designs Inc.

Senior .Net Developer

Alexandria, VA · On-site

$125K - $135K/yr

The Senior .NET Developer's responsibilities include participating in the entire software development life cycle, developing new web applications and supporting legacy systems. This will be a hands ...

TWO95 International

Senior .Net Developer

Washington, DC · On-site

$62.25 - $79.25/hr

Senior .Net Developer Location: Washington, DC Position Type: Long term contract Skills and work experience with the following technologies • .NET C# - Strong skill required • HTML 4.0 - Strong ...

Two95 International Inc.

Senior .NET Developer

Washington, DC · On-site

$62.25 - $79.25/hr

Job Title: Sr .Net Developer Location: Washington, DC Duration: 6+ Months Job Requirements Development experience in enterprise-class systems. Experience configuring, deploying, and monitoring cloud ...

360 IT Professionals

.Net Developer

Mclean, VA

$48.75 - $64.50/hr

We use Objective C and Swift programming languages to create native applications for iPhone ... Additional Information Thanks & Regards Preeti Nahar Sr. Talent & Client Acquisition Specialist 360 ...

InstantServe LLC

Senior .NET Developer

Washington, DC · On-site

$56 - $71.25/hr

Senior .NET Developer Location: Washington, DC 200019 Work Arrangement: Hybrid Agency Interview Type: Webcam Only Complete Description: 16+ years of experience. Formulates and defines system scope ...

InstantServe LLC

Senior .NET Developer

Washington, DC · Hybrid

$62.25 - $79.25/hr

Senior .NET Developer Location: Washington, DC 200019 Work Arrangement: Hybrid Agency Interview Type: Webcam Only Complete Description: 16+ years of experience. Formulates and defines system scope ...

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Senior Net Developer information

See Herndon, VA salary details

$37

$61

$80

How much do senior net developer jobs pay per hour?

As of May 28, 2026, the average hourly pay for senior net developer in Herndon, VA is $61.91, according to ZipRecruiter salary data. Most workers in this role earn between $54.38 and $69.23 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior .NET Developer, and why are they important?

To thrive as a Senior .NET Developer, you need advanced proficiency in C#, ASP.NET, and object-oriented programming, typically supported by a bachelor's degree in computer science or related field. Experience with tools like Visual Studio, SQL Server, and version control systems such as Git, along with relevant Microsoft certifications (e.g., MCSD), is highly valued. Strong problem-solving, leadership, and communication skills help you collaborate effectively and mentor junior developers. These competencies ensure robust, maintainable software solutions and contribute to successful project delivery in complex development environments.

How does a Senior .NET Developer typically collaborate with cross-functional teams during the software development lifecycle?

As a Senior .NET Developer, you will often work closely with product managers, UI/UX designers, QA engineers, and other developers to deliver robust software solutions. Collaboration usually involves participating in requirement-gathering sessions, contributing to architectural decisions, conducting code reviews, and ensuring seamless integration of backend and frontend components. Clear communication and proactive problem-solving are essential, as you may also mentor junior developers and provide technical guidance to the team. This collaborative approach helps ensure that projects are delivered efficiently and meet both technical and business requirements.

What is a Senior .NET Developer?

A Senior .NET Developer is an experienced software engineer who specializes in building, maintaining, and optimizing applications using Microsoft’s .NET framework. They are responsible for designing robust and scalable solutions, leading development teams, and ensuring best coding practices. Senior .NET Developers typically work with technologies such as C#, ASP.NET, SQL Server, and may also be involved in architectural decisions, mentoring junior developers, and collaborating with stakeholders to deliver high-quality software products.

What is the difference between Senior Net Developer vs .NET Developer?

AspectSenior Net Developer.NET Developer
Required Experience5+ years, leadership skills1-3 years, foundational skills
CertificationsMicrosoft Certified: Azure Developer Associate or similarOptional, but beneficial
Work EnvironmentLead projects, mentor juniors, design architectureDevelop applications, write code, troubleshoot
ResponsibilitiesArchitect solutions, oversee team, optimize performanceBuild and maintain .NET applications, implement features

The main difference between a Senior Net Developer and a .NET Developer lies in experience, responsibilities, and leadership. Senior Net Developers typically have more years of experience, hold advanced certifications, and take on leadership roles in project design and team mentoring. In contrast, .NET Developers focus on coding and application development with less emphasis on leadership or architecture. Both roles are essential in the software development lifecycle, but the senior position involves broader strategic responsibilities.

What are the most commonly searched types of Net Developer jobs in Herndon, VA? The most popular types of Net Developer jobs in Herndon, VA are:
What cities near Herndon, VA are hiring for Senior Net Developer jobs? Cities near Herndon, VA with the most Senior Net Developer job openings:
Senior Net Developer jobs near you
Senior .NET Developer

Senior .NET Developer

Mobomo, LLC

Washington, DC • On-site

$60.75 - $77.50/hr

Full-time

Medical, Retirement, PTO

Posted 28 days ago

Job description

We are seeking a full-time, backend-focused Senior .NET Developer to support application modernization initiatives and ongoing maintenance of legacy systems. This role requires a hands-on engineer with strong experience in modern backend technologies, containerized environments, and CI/CD pipelines, as well as the ability to lead and mentor other developers.
Responsibilities

  • Participate in the analysis, design, and development of system modernization efforts
  • Support and enhance existing legacy applications
  • Lead and contribute to Agile development activities, including standups, user stories, backlog grooming, and task execution
  • Build, maintain, and enhance backend services using .NET (C#), GraphQL, and relational databases
  • Contribute to and support CI/CD pipeline development and deployment processes
  • Implement and maintain containerized solutions and troubleshoot deployment issues
  • Design and implement unit tests, review load testing results, and identify performance bottlenecks
  • Troubleshoot defects and recommend system optimizations and enhancements
  • Collaborate closely with stakeholders and a small development team, providing technical guidance and mentorship

Required Qualifications
Minimum of 5 years of experience as a software engineer in backend development
Strong experience building applications using .NET (C#)
Experience developing and maintaining GraphQL APIs
Experience with Postgres and/or MSSQL databases
Experience designing and maintaining data models and schemas
Experience serving as a senior or lead engineer on development projects

  • Experience with Agile methodologies, Docker/containerization, and CI/CD pipelines
  • Ability to work independently and collaboratively while mentoring junior developers
  • Strong experience gathering requirements and working directly with stakeholders

Preferred Qualifications
Experience working with legislative systems or legislative data
Experience with Microsoft Azure
Familiarity with MEAN stack (MongoDB, Express, Angular, Node.js) and/or React.js

Location
Capitol Hill, Washington D.C.
Some work may be performed off-site with approval and at the discretion of the POC.
 

About Mobomo:

Mobomo is a full-service DevOps agency dedicated to creating elegant solutions to solve complex problems.

Mobomo benefits include health care, paid time off, retirement savings and professional development.

Mobomo is an equal opportunity employer and we value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity or expression, sexual orientation, age, marital status, citizenship status, veteran status, disability status or any other basis as protected by federal state, or local law.

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