Senior .NET Developer

Be an Early ApplicantContract senior Hybrid

Rockville, Maryland, United StatesPosted Today

Role Overview

eTelligent Group is hiring a Senior .NET Developer. This is a contract hybrid role, based in Rockville, Maryland. Part of eTelligent Group's Treasury hiring, posted today. applications are still in the early window, before most candidates have applied. Full responsibilities, required qualifications, and the apply link are listed in the description below.

Salary Context

Salary is not disclosed in this posting. Market median for Senior-level Treasury roles is $94k-$128k (based on 20 comparable listings). Many employers share specifics during the interview process or after an initial screen.

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SQLReactAngularAzureGitHubCI/CDDevOpsMicroservices

Job description

Company Overview:

Over the past 15 years, eTel has delivered essential solutions for the federal government by securing and managing data, providing scalable identity access, modernizing legacy systems, and building high-performance platforms. By integrating new technologies and ensuring reliable operations we help agencies stay prepared for future challenges As a premier technology solutions and services company to the US federal government, eTel possesses longstanding relationships across the federal civilian marketplace. Other customers include the broader Treasury Department, Commerce Department, and State Department.

eTel offers integrated CMMI Level 3 processes, tools, and techniques with innovative, cost-efficient, and secure solutions to address complex challenges. eTel also holds ISO 9001:2015, ISO/IEC 27001:2013, and ISO/IEC 20000-1:2018 certifications, and offers dedicated subject matter experts (SMEs) and thought leaders that possess a deep understanding of customers’ environments and challenges.

Client: Montgomery County Government

Location: Rockville, MD (The hybrid is two (2) days in the office and three (3) days remote. The remote work location must be in the DMV)

Citizenship: US Citizen (MUST)

Note: This is a 35-hour-a-week assignment with the possibility of hours increasing as budget permits in the future. This is a yearly engagement with an option to renew every year.

Scope of Work:

We are seeking a Senior .NET Developer with strong cloud experience to design, build, modernize and support modern applications in Microsoft Azure. The ideal candidate is proficient in .NET Core/.NET 8, C#, and cloud-native architectures, with hands-on experience integrating Azure services such as App Services, Functions, API Management, Service Bus, Azure SQL, Azure OpenAI and AI Foundry, and GitHub Copilot for Developers. The contractor will work with County staff to modernize legacy .NET applications and implement AI-powered solutions.

Technical Skills:

Expert in C#, ASP.NET Core, and cloud-native development.
Strong experience with Azure services, microservices, API security and Microsoft Entra ID/B2C authentication.
Experience modernizing .NET Framework/Web Forms applications to .NET 8 or cloud-native architectures.
Hands-on experience with Azure AI Foundry, Azure OpenAI, AI agents, Retrieval-Augmented Generation (RAG), prompt engineering, and GitHub Copilot.
Proficient with GitHub or Azure DevOps, CI/CD, and containerization.
Solid understanding of SQL, Cosmos DB, and modern UI frameworks (Blazor/React/Angular).

Analytical and Problem-Solving Skills:

Exceptional analytical skills to evaluate data, identify trends, and provide actionable insights.
Experience conducting feasibility studies and solution assessments.
Expertise in conducting gap analyses.

Communication and Interpersonal Skills:

Excellent verbal and written communication skills to clearly articulate complex ideas to diverse audiences.
Strong interpersonal skills to effectively collaborate with stakeholders, project teams, and senior leadership.

Other Attributes:

Self-motivated and organized, with the ability to manage multiple priorities in a fast-paced environment.
A proactive mindset with a focus on driving results and achieving project goals.
Strong attention to detail and commitment to delivering high-quality work.

Contract staff will work side-by-side with County staff to facilitate knowledge transfer.
Contract staff will report directly to TEBS- EPS Manager.

Commitment to Diversity -
eTelligent Group provides equal employment opportunities (EEO) to all applicants without regard to race, color, religion, gender, sexual orientation, gender identity, nations origin, age, disability, genetic information, marital status, amnesty, status as a covered veteran, and any other characteristic provided in accordance with applicable, federal, state and local laws.

About eTelligent Group

eTelligent Group

etelligent-group.com

TreasuryHybrid

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Frequently Asked Questions

How do I apply for the Senior .NET Developer position at eTelligent Group?

Use the Apply button above to submit your application directly to eTelligent Group. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.

Is the Senior .NET Developer role at eTelligent Group remote or in-office?

This is a hybrid role based in Rockville, Maryland. Expect a mix of in-office and remote days, with the specific cadence set by the hiring manager.

What does a Senior .NET Developer at eTelligent Group earn?

eTelligent Group has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.

When was the Senior .NET Developer role at eTelligent Group posted?

This role was posted on July 23, 2026 (today). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.

How much experience does the Senior .NET Developer role at eTelligent Group require?

This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. eTelligent Group lists their specific requirements in the description below, so review the must-have qualifications closely before applying.