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Senior Net Core Developer Jobs in Washington, DC

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 ...

talentmovers inc

Sr. Dot Net developer / Lead

Reston, VA · On-site

$57.25 - $72.75/hr

Full stack developers are responsible for developing and designing front end web architecture ... Technologies required : .Net core, MVC, SQL Server, Web Api's, Windows services Developing ...

Dellfor Technologies

senior .net developer

Washington, DC

$62.25 - $79.25/hr

Technical Knowledge and Skills Senior .Net Developer shall possess 7+ years technical knowledge and experience with most of the following systems, platforms, applications, and skills: BS or MS in ...

Clearwaters.IT

Senior .NET Developer

Washington, DC · On-site +1

$62.25 - $79.25/hr

Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This role requires expertise in software architecture, coding best practices, and modern development ...

Clearwaters.IT

Senior .NET Developer

Washington, DC · Remote

$62.25 - $79.25/hr

Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This role requires expertise in software architecture, coding best practices, and modern development ...

Clearwaters.IT

Senior .NET Developer

Washington, DC · Remote

$56.25 - $71.75/hr

Seeking a Senior Developer to design, develop, and maintain high-quality software solutions. This role requires expertise in software architecture, coding best practices, and modern development ...

TransUnion

Senior .NET Developer

Reston, VA

$57.25 - $72.75/hr

Role Overview and Core Responsibilities * Serve as a key technical contributor on the DHI Online ... Partner closely with business stakeholders, Product Management, Project Management, and Engineering ...

Transunion

Senior .NET Developer

Reston, VA · On-site

$57.25 - $72.75/hr

Role Overview and Core Responsibilities * Serve as a key technical contributor on the DHI Online ... Partner closely with business stakeholders, Product Management, Project Management, and Engineering ...

Trans Union LLC

Senior .NET Developer

Reston, VA · On-site

$57.25 - $72.75/hr

Role Overview and Core Responsibilities * Serve as a key technical contributor on the DHI Online ... Partner closely with business stakeholders, Product Management, Project Management, and Engineering ...

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All JobsNet Core Developer JobsSenior Net Core Developer JobsSenior Net Core Developer Jobs in Washington, DC

Senior Net Core Developer information

See Washington, DC salary details

$41

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How much do senior net core developer jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for senior net core developer in Washington, DC is $68.18, according to ZipRecruiter salary data. Most workers in this role earn between $59.90 and $76.25 per hour, depending on experience, location, and employer.

What is the difference between Senior Net Core Developer vs Software Engineer?

AspectSenior Net Core DeveloperSoftware Engineer
Required CredentialsBachelor's in CS or related field, experience with .NET CoreBachelor's in CS or related field, programming experience
Work EnvironmentDeveloping backend applications, working with .NET Core frameworksDesigning, developing, testing software across various platforms
Employer & Industry UsageTech companies, finance, healthcare using .NET technologiesBroad industry use, including tech, finance, startups, and enterprise

The main difference is that a Senior Net Core Developer specializes in building and maintaining backend applications using .NET Core, often with a focus on performance and scalability. A Software Engineer has a broader scope, working across different programming languages and platforms. Both roles require similar educational backgrounds and technical skills, but the Senior Net Core Developer role is more specialized in Microsoft technologies and backend development.

What are the most commonly searched types of Net Core Developer jobs in Washington, DC?

The most popular types of Net Core Developer jobs in Washington, DC are:

What are popular job titles related to Senior Net Core Developer jobs in Washington, DC?

For Senior Net Core Developer jobs in Washington, DC, the most frequently searched job titles are:

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The top searched job categories for Senior Net Core Developer jobs in Washington, DC are:

Senior Net Core Developer jobs near you

Lead Developer, Senior

Nationwide IT Services, Inc

Washington, DC • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 8 days ago

Job description

Lead Developer, Senior
Location: Washington, DC Metropolitan Area
Employment Type: Full-Time
Clearance Requirement: Must be able to successfully obtain and maintain a Tier 2 (Moderate Risk) Public Trust background investigation before contract performance.
The Federal Mediation and Conciliation Service (FMCS) is an independent U.S. federal agency dedicated to fostering productive labor-management relationships and helping employers and labor unions resolve workplace disputes without the need for strikes, lockouts, or litigation. Through mediation, arbitration, conflict prevention, and collaborative training programs, FMCS helps improve communication and cooperative problem-solving while administering labor relations programs under federal law to support stable, productive workplaces nationwide.
Position Overview
Nationwide IT Services (NIS) is seeking an accomplished Senior Lead Developer to provide technical leadership and hands-on software engineering support for a Federal Application Development and Support Services (ADSS) program. This individual will lead software development activities across multiple enterprise applications, mentor development teams, establish engineering best practices, and deliver secure, scalable, and maintainable solutions supporting mission-critical business systems.
The Senior Lead Developer will collaborate closely with the Program Manager, Technical Lead / Solution Architect, Government stakeholders, cybersecurity personnel, business analysts, and DevSecOps engineers to support application modernization, cloud migration, operations and maintenance, and the development of new enterprise capabilities.
Key Responsibilities
  • Serve as the senior technical lead for application development, software engineering, and system enhancement activities.
  • Lead Agile software development teams through all phases of the Software Development Life Cycle (SDLC).
  • Design, develop, test, document, and maintain enterprise applications supporting Federal business operations.
  • Translate functional requirements into scalable, secure, and maintainable software solutions.
  • Lead code reviews and establish coding standards, development practices, and quality assurance processes.
  • Mentor developers and foster continuous improvement across the development team.
  • Develop and maintain RESTful APIs, web services, backend services, and enterprise integrations.
  • Build and enhance Microsoft 365, Power Platform, SharePoint Online, Azure, and .NET-based solutions.
  • Support application modernization and migration from legacy platforms to cloud-native architectures.
  • Collaborate with DevSecOps engineers to implement CI/CD pipelines, automated testing, source control, and deployment automation.
  • Troubleshoot complex application issues and perform root cause analysis.
  • Optimize application performance, scalability, reliability, and maintainability.
  • Develop technical documentation, software design documents, run books, and configuration artifacts.
  • Support Authority to Operate (ATO), vulnerability remediation, secure coding, and cybersecurity compliance activities.
  • Participate in sprint planning, backlog refinement, daily standups, demonstrations, retrospectives, and release planning.
  • Work closely with business stakeholders to evaluate enhancement requests and recommend technical solutions.
  • Assist in estimating development effort, technical planning, and release scheduling.
Required Qualifications
  • Bachelor's degree in computer science, Software Engineering, Information Technology, or related discipline.
  • Minimum of 8 years of enterprise software development experience.
  • Minimum 5 years supporting Federal Government IT systems.
  • Minimum 3 years serving in a Lead Developer or Technical Lead role.
  • Extensive experience developing enterprise web applications using Microsoft technologies.
  • Strong understanding of Agile software development methodologies.
  • Experience mentoring software developers and leading technical teams.
  • Excellent analytical, troubleshooting, and problem-solving skills.
  • Strong written and verbal communication skills.
Desired Certifications
One or more of the following certifications are highly desirable:
  • Microsoft Certified: Azure Developer Associate
  • Microsoft Certified: Power Platform Developer Associate
  • Microsoft Certified: Azure Administrator Associate
  • Certified Scrum Developer (CSD)
  • Certified ScrumMaster (CSM)
  • SAFe Practitioner
  • Security+ (preferred)

Technical Skills
Candidates should possess strong experience in many of the following technologies:
Programming Languages
  • C#
  • .NET Framework
  • .NET Core / .NET
  • ASP.NET MVC
  • ASP.NET Core
  • JavaScript
  • TypeScript
  • HTML5
  • CSS3
  • SQL
  • PowerShell
Microsoft Technologies
  • Microsoft Azure Government
  • Microsoft Azure
  • Microsoft 365
  • SharePoint Online
  • Microsoft Teams
  • Power Apps
  • Power Automate
  • Power Pages
  • Power BI
  • Dataverse
Database Technologies
  • Microsoft SQL Server
  • PostgreSQL
  • Entity Framework
  • Database design
  • Stored procedures
  • Performance tuning
Cloud & DevSecOps
  • Azure DevOps
  • Git
  • GitHub
  • CI/CD pipelines
  • Automated testing
  • Release management
  • Infrastructure as Code (preferred)
Development Practices
  • REST APIs
  • Microservices
  • Object-Oriented Programming
  • Secure coding
  • Unit testing
  • Integration testing
  • Performance optimization
  • Code reviews
Security
  • Secure SDLC
  • FISMA
  • NIST SP 800-53
  • ATO support
  • Vulnerability remediation
  • Identity and Access Management
  • Application security
  • Why Join Nationwide IT Services?
    Nationwide IT Services is a trusted government contractor supporting Department of Defense customers. Join us to work on high-impact cybersecurity missions with experienced professionals in a collaborative, growth-focused environment.
    Our benefits package includes medical, dental, and vision insurance; life and disability insurance; a 401(k) plan with employer match; paid holidays; PTO (sick/vacation); commuter benefits; an employee assistance program (EAP); educational reimbursement; and Pet Insurance.
    Nationwide IT Services, Inc. provides equal employment opportunities (EEO) to all qualified applicants regardless of race, color, religion, sex, national origin, sexual orientation, gender identity, genetics, disability, or protected veteran status.
    Salary range $130,000 to $240,000 annually
    The salary range is a general guideline. We consider several factors when determining base salary offers, including the position's scope and responsibilities, the candidate's experience, education, and skills, and current market conditions.

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