Lead .NET Developer
The 250 Network
Position OverviewWe are seeking an experienced Lead .NET Developer to support a high-profile federal government program. This role combines hands-on software development with technical leadership, making it ideal for someone who enjoys building modern applications while mentoring developers and driving technical decisions across the development lifecycle.The successful candidate will lead the design and development of scalable applications, collaborate closely with cross-functional teams, and help deliver secure, mission-critical solutions in a fast-paced government environment.Work Environment* Hybrid schedule requiring three days per week onsite in Washington, DC.* Opportunity to support a mission-critical federal government initiative.* Collaborative, team-oriented environment focused on delivering secure, high-quality software solutions. Qualifications Active Secret Clearance (required). 8+ years of software development experience with Microsoft technologies. Proven experience leading software development teams or serving as a technical lead. Strong expertise with: C# RESTful APIs Node.js Microsoft Power Platform (Power Apps, Power Automate) Strong understanding of software architecture, object-oriented design principles, and design patterns. Experience working within Agile development environments. Excellent communication and leadership skills. Experience supporting federal government or Department of Defense programs. Experience with Azure cloud services and DevOps pipelines. Experience with SQL Server and Entity Framework. Familiarity with CI/CD automation and infrastructure-as-code. Bachelor’s degree in Computer Science, Information Technology, or a related technical field. C# Node.js Microsoft Power Platform Power Apps Power Automate REST APIs SQL Server Entity Framework Git CI/CD Agile/Scrum Software Architecture Technical Leadership Responsibilities Lead the design, development, and enhancement of enterprise applications using the Microsoft technology stack. Serve as the technical lead for a team of developers, providing guidance, code reviews, and mentorship. Develop and maintain backend services using .NET/C# and modern web technologies. Build and support front-end and API integrations utilizing Node.js. Develop and maintain Power Platform solutions, including Power Apps, Power Automate, and related Microsoft technologies. Collaborate with architects, business analysts, and stakeholders to translate business requirements into technical solutions. Ensure applications meet security, performance, and scalability standards required for federal government environments. Participate in architecture discussions and recommend improvements to application design, frameworks, and development practices. Troubleshoot complex production issues and provide technical leadership during incident resolution. Support Agile development methodologies, including sprint planning, daily standups, and retrospectives. #J-18808-Ljbffr
$137.74k - $188.35k
...talented people. That’s why we’re committed to developing talent and providing opportunities for... ...our medical plans. Overview As a Lead Consultant at Excella, you will not only... ...development. Your deep expertise in the .NET ecosystem and ability to communicate...SuggestedWork from homeHome officeFlexible hours- ...A leading consulting firm in Washington, D.C. is seeking a Senior .Net Developer to enhance critical business functions through application development and support. The ideal candidate will possess extensive experience in various technologies, including ASP.NET, C#, and...Suggested
- ...Net Developer Developer Arlington, VA Asset Management JO-1801-543 A minimum of 6-8 years as an enterprise developer using the.Net technology stack Strong technical leadership and team management skills Must have 5+ solid years of OO design and development...Suggested
- ...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 focus will be on creating efficient and robust solutions that align with...Suggested
$100k
...We’re hiring a remote full-stack developer for our C#/.NET team. You are ideally a mid or senior-level .NET developer with experience building high-quality modern solutions and experience working autonomously. You’ll start on a six-month contract with the option to continue...SuggestedHourly payContract workFor contractorsWork experience placementRemote workFlexible hours- ...Federal Goverment Agency located in Washington DC metro area. The developer will work closely with the customers, agency partners,... ...Driven Development processes within the team Experience with C#, .NET applications, and object oriented programming (C++ experience possiblysubstituted...Interim role
- ...We are seeking a full-time, backend-focused Senior .NET Developer to support application modernization initiatives and ongoing maintenance... ...environments, and CI/CD pipelines, as well as the ability to lead and mentor other developers. Responsibilities Participate in the...Full timeLocal area
- ...About NDi Network Designs, Inc. (NDi) is a leading Federal contractor that specializes in designing, developing, and delivering information technology and network solutions... ...Encouraged to Apply. Job Description The Senior .NET Developer's responsibilities include...For contractorsWork experience placement
- ...THE OVERALL PURPOSE OF POSITION: Senior .Net Developer will provide support for critical business functions through the development, implementation, testing and maintenance of applications systems. SCOPE OF WORK Design, code, test, debug, maintain, and document software...Immediate start
- ...We are seeking a skilled .NET Full Stack Developer with strong experience in Angular (v10+) and modern web technologies. The ideal candidate will have 5–8 years of hands‑on experience building scalable web applications, developing REST APIs, and working across both front...
- ...Job Title: .Net, SQL Developer Location: Cincinnati, OH or Washington DC Rate: DOE $/Yr. Position Type: Full Time Interview Process: Phone Followed by F2F US Citizen, Green Card and GC EAD Job Description ASP.NET (VB syntax), ASP (classic), CSS, HTML, JavaScript...Full time
- .Net backed developer with Microservices experience. PFB the Key skills. Senior Developer Candidate must have proven experience developing data-driven applications across the full stack, with strong hands‑on proficiency in Microsoft Azure , Kubernetes , microservices...
- ...Summary E-INFOSOL LLC is seeking a highly motivated C# / .NET Developer to be a full-time employee in Washington, DC to join our innovative and customer solutions focused team. Job type: Full-time | Location: Washington, DC, US Job Description The C# / .NET Developer will...Full timeContract workTemporary workLocal area
$20.56 - $26.73 per hour
...Store Lead Job Description: Reports to Store Manager: As a Store Lead, you will partner... ...customer expectations, and achieve a high Net Promoter Score. Leverages customer feedback... ...skills. Proven ability to train and develop high performing store teams. Proficient...Work at officeShift work$150k - $180k
...Full Stack .NET Developer Revolutional delivers advanced technology solutions and mission support to federal agencies across civilian, health, and national security environments. We apply modern capabilities, including AI/ML, cloud, cybersecurity, and IT modernization...Full timeFlexible hours- ...a Koniag Government Services company, is seeking a Senior .Net Full-Stack Developer with a Top-Secret security clearance to support Kadiak and our... ..., build, and deploy applications under the direction of lead architects, including large-scale data processing, computationally...Local areaFlexible hours
- ...Senior.NET Reports Developer Evolver is an information technology, cybersecurity, and digital transformation company supporting national defense, federal civilian agencies, and Fortune 500 organizations. We help customers secure critical systems, modernize enterprise...Flexible hours
- ...in Bethesda, MD is seeking Sr. Software Engineers to design and develop software solutions. The role involves working independently and... ...fields and 5 years of experience. Additionally, knowledge of C#, ASP.NET MVC, HTML, and JavaScript is necessary. The position requires...Relocation
$114.1k - $268.18k
...are our number one priority. With a wealth of learning and career development opportunities, a world-class training facility, and leading market tools, we help our people continue to grow both professionally and personally. If you're looking for a firm with a strong team...Full timeH1bLocal area- ...development opportunities, a world-class training facility, and leading market tools, we help our people continue to grow both... ...-functional teams to identify business opportunities, design / develop machine learning, and data science solutions Utilize processes...Full timeLocal area
- ...secure, reliable, and scalable solutions that advance performance in high-stakes environments. Evolver is seeking a Senior .NET Developer to support the work and projects of our client in Washington D.C. Must be able to pass a USCP Background Check. The role's primary...Flexible hours
- ...and implementation of sustainability strategies. The role involves managing lease negotiations, evaluating carbon footprints, and leading sustainability programs in a flexible remote work setting. Ideal candidates will have a degree in relevant fields and a proven track...Remote jobFlexible hours
$17 - $27.75 per hour
...Ambassador embodying of Coach values and increasing brand awareness Leads implementation of Company initiatives and support full... ...create competitive and breakthrough strategies and plans. Developing Direct Reports and Others : Provides challenging and...Minimum wageShift work$98.5k - $184.9k
Accenture Federal Services is seeking a .NET Full Stack Developer in Washington, DC, to develop and maintain web applications. In this role, you will design, code, and deploy software solutions, ensuring high performance and reliability. The ideal candidate has a Bachelor...- ...Evolution, LLC is looking for a motivated Mid-Level Full-Stack Developer in Arlington, Virginia. The role focuses on building secure backend... ...at least 3 years of experience in full-stack development using .NET Core, strong understanding of RESTful APIs, and excellent...
- Experience working with REST and SOAP Web services Understanding of Design Patterns such as Dependency injection, Singleton Experience writing Unit Test cases for code coverage Experience working with Knockout Experience working with Angular Experience making Ajax ...
- Pioneering Evolution LLC. seeks a Mid-Level Full-Stack Developer to build secure backend services for its federal software platform in Arlington... ...collaborative environment, requiring 3+ years of experience in .NET Core and strong RESTful API skills. Competitive benefits include...
$99.3k - $159.33k
...AWS Solutions Architect, or equivalent vendor credentials. Experience supporting Windows-based application stacks including IIS, .NET applications, and related middleware in cloud environments. Familiarity with CI/CD pipelines and how Windows workloads are incorporated...Contract workWork at office- ...Evolution LLC. is looking for a Senior Full-Stack Developer in Arlington, Virginia. This role involves leading the development of secure and scalable software solutions... ...ideal candidate must have extensive experience in .NET Core and Angular, possess strong skills in RESTful...
- ...E-Logic is seeking an experienced Lead Technical Architect to support a critical enterprise modernization project for the Federal Mediation... ...Online, Azure, AWS-hosted WordPress, Dataverse, and custom .NET C# applications. Compile and deliver high-priority technical artifacts...
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