{"schemaVersion":"jobsearcher.job.v1","id":"064b8bb381a696eed35a54ef","url":"https://jobsearcher.com/jobs/064b8bb381a696eed35a54ef","canonicalUrl":"https://jobsearcher.com/jobs/064b8bb381a696eed35a54ef","title":"C#/.NET Developer","description":"PID: 26-14-09P-031-WSU\n\nSummary\nE-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.\n\nJob Description\nThe C# / .NET Developer will contribute to the development, enhancement, and maintenance of web applications and services that support mission‑critical operations. You will work hands‑on with the .NET framework and associated technologies to build clean, efficient, and reliable backend components that integrate seamlessly with frontend and cloud‑based systems. In this role, you will collaborate closely with senior developers, designers, product owners, and other team members to deliver high‑quality software solutions that follow best practices and meet customer needs. You will also support defect resolution, participate in code reviews, and continually grow your skills under the guidance and mentorship of a Senior C#/.NET Developer. Will help drive:\nDesign, develop, test, and maintain application features using C#, ASP.NET, Entity Framework, and SQL Server.\nModify and enhance existing application code to improve performance, functionality, and maintainability.\nIntegrate third‑party components and APIs, as needed.\nParticipate in the full software development lifecycle, including planning, requirements analysis, implementation, testing, and deployment.\nCollaborate with senior developers and architects to implement technical designs and follow established patterns and standards.\nWrite clean, scalable, and maintainable code aligned with best practices and team guidelines.\nConduct unit and integration testing to validate functionality and ensure code quality.\nTroubleshoot and resolve technical issues, defects, and performance bottlenecks.\nUse Git/GitLab for source control, branching, and code collaboration.\nSupport O&M tasks such as minor enhancements, bug fixes, and performance tuning.\nParticipate in code reviews and apply feedback from senior engineers to improve your technical proficiency.\nAssist with remediating code and package vulnerabilities identified through scans, with senior guidance.\n\nRequired Qualifications\nActive Top-Secret clearance with capability to obtain SCI/CI Poly if needed to meet contract requirements.\nBachelor’s Degree in Information Technology or a related field of study.\nMinimum 8 years of experience.\n3–5 years of professional experience developing software using C# and the .NET framework.\nExperience with ASP.NET, Entity Framework, and SQL Server.\nFamiliarity with architectural patterns and API styles (REST, RPC).\nExperience writing and executing unit tests and performing integration testing.\nUnderstanding of secure coding practices and willingness to follow vulnerability remediation guidance.\nAbility to collaborate with cross‑functional teams and translate requirements into technical tasks.\nStrong problem‑solving skills and ability to work independently when implementing assigned tasks.\nTroubleshoot and resolve technical issues and bugs.\nParticipate in code reviews and provide feedback to peers.\nUse Git/Gitlab for source control.\n\nPreferred Qualifications\nExperience with cloud platforms (AWS or Azure).\nBasic understanding of DevOps practices or exposure to CI/CD pipelines (GitLab preferred).\nExperience working with Object‑Relational Mappers (ORMs) such as Entity Framework.\nKnowledge of SQL or NoSQL database design principles.\nExperience with containerization tools (Docker).\nFamiliarity with Agile/Scrum development processes.\nRelevant certifications in .NET development or cloud technologies.\nExperience working in an Agile/Scrum development environment.\nStrong problem-solving skills and attention to detail.\nExcellent communication and collaboration skills.\n\nAbout E-INFOSOL\nE-INFOSOL is a Service Disabled and Veteran Owned Small Business (SDVOSB) located in the Washington, D.C. metropolitan area. We specialize in building modern and tailored solutions to support our customers’ mission. As a mission-first organization, we deliver Subject Matter Expertise (SME) in cloud computing, virtualization, cyber security, software development and data services. We support the Intelligence Community, Department of Defense, Federal Law Enforcement, Civilian Agencies and the Private Sector.\nThrough strategic partnerships with top industry players such as Amazon Web Services (AWS), Broadcom, Microsoft and VMware, E-INFOSOL provide an array of IT products and solutions. Combined with our industry expertise, we deliver in-depth knowledge on Government requirements and fully understand NIST and DoD security requirements. Our expertise in the latest technologies combined with our understanding of infrastructure needs and security requirements provides the best combination for achieving innovative and secure environments for Government Agencies and Private Sector.\n\nCareer Growth\n“Putting People First, Achieving our Mission Together”. E-INFOSOL is a people-first organization focusing on a positive employee culture that inspires creativity and innovation in support of our customers. With opportunities such as reimbursement and bonuses based on completion of certifications, we invest in our employees’ career growth.\n\nBenefits\nMedical – 100% company paid premiums for employees with dependent options.\nDental and Vision\nRetirement Savings (401k) up to 4% match\nHealth Savings Account (HSA), FSA and DCFSA\nCompany-paid Short/Long-term disability (w/ additional supplemental options)\nCompany-paid Life and AD&D (w/ additional supplemental options)\nGenerous Paid Time Off and ALL 11 Federal Holidays\nLegal and Identity Protection Services\nBonuses for certifications and reimbursement\nEmployee Perks:\nUberOne, Company Outings (Sporting events, Happy Hours, etc.), Discounts on services including Pet Insurance\n\nCompany Awards\nSBA 8(a) Certified\nSDVOSB\nGSA Contract Holder\nInc. 5000\n\nEqual Employment Opportunity Policy\nE-INFOSOL LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.\nThis policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.\nWebsite: E-INFOSOL.com","company":"Einfosol","rawCompany":"einfosol","city":"Washington","state":"DC","isRemote":false,"isActive":false,"createdAt":"2026-08-04T18:07:11.715Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"C#/.NET Developer","description":"PID: 26-14-09P-031-WSU\n\nSummary\nE-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.\n\nJob Description\nThe C# / .NET Developer will contribute to the development, enhancement, and maintenance of web applications and services that support mission‑critical operations. You will work hands‑on with the .NET framework and associated technologies to build clean, efficient, and reliable backend components that integrate seamlessly with frontend and cloud‑based systems. In this role, you will collaborate closely with senior developers, designers, product owners, and other team members to deliver high‑quality software solutions that follow best practices and meet customer needs. You will also support defect resolution, participate in code reviews, and continually grow your skills under the guidance and mentorship of a Senior C#/.NET Developer. Will help drive:\nDesign, develop, test, and maintain application features using C#, ASP.NET, Entity Framework, and SQL Server.\nModify and enhance existing application code to improve performance, functionality, and maintainability.\nIntegrate third‑party components and APIs, as needed.\nParticipate in the full software development lifecycle, including planning, requirements analysis, implementation, testing, and deployment.\nCollaborate with senior developers and architects to implement technical designs and follow established patterns and standards.\nWrite clean, scalable, and maintainable code aligned with best practices and team guidelines.\nConduct unit and integration testing to validate functionality and ensure code quality.\nTroubleshoot and resolve technical issues, defects, and performance bottlenecks.\nUse Git/GitLab for source control, branching, and code collaboration.\nSupport O&M tasks such as minor enhancements, bug fixes, and performance tuning.\nParticipate in code reviews and apply feedback from senior engineers to improve your technical proficiency.\nAssist with remediating code and package vulnerabilities identified through scans, with senior guidance.\n\nRequired Qualifications\nActive Top-Secret clearance with capability to obtain SCI/CI Poly if needed to meet contract requirements.\nBachelor’s Degree in Information Technology or a related field of study.\nMinimum 8 years of experience.\n3–5 years of professional experience developing software using C# and the .NET framework.\nExperience with ASP.NET, Entity Framework, and SQL Server.\nFamiliarity with architectural patterns and API styles (REST, RPC).\nExperience writing and executing unit tests and performing integration testing.\nUnderstanding of secure coding practices and willingness to follow vulnerability remediation guidance.\nAbility to collaborate with cross‑functional teams and translate requirements into technical tasks.\nStrong problem‑solving skills and ability to work independently when implementing assigned tasks.\nTroubleshoot and resolve technical issues and bugs.\nParticipate in code reviews and provide feedback to peers.\nUse Git/Gitlab for source control.\n\nPreferred Qualifications\nExperience with cloud platforms (AWS or Azure).\nBasic understanding of DevOps practices or exposure to CI/CD pipelines (GitLab preferred).\nExperience working with Object‑Relational Mappers (ORMs) such as Entity Framework.\nKnowledge of SQL or NoSQL database design principles.\nExperience with containerization tools (Docker).\nFamiliarity with Agile/Scrum development processes.\nRelevant certifications in .NET development or cloud technologies.\nExperience working in an Agile/Scrum development environment.\nStrong problem-solving skills and attention to detail.\nExcellent communication and collaboration skills.\n\nAbout E-INFOSOL\nE-INFOSOL is a Service Disabled and Veteran Owned Small Business (SDVOSB) located in the Washington, D.C. metropolitan area. We specialize in building modern and tailored solutions to support our customers’ mission. As a mission-first organization, we deliver Subject Matter Expertise (SME) in cloud computing, virtualization, cyber security, software development and data services. We support the Intelligence Community, Department of Defense, Federal Law Enforcement, Civilian Agencies and the Private Sector.\nThrough strategic partnerships with top industry players such as Amazon Web Services (AWS), Broadcom, Microsoft and VMware, E-INFOSOL provide an array of IT products and solutions. Combined with our industry expertise, we deliver in-depth knowledge on Government requirements and fully understand NIST and DoD security requirements. Our expertise in the latest technologies combined with our understanding of infrastructure needs and security requirements provides the best combination for achieving innovative and secure environments for Government Agencies and Private Sector.\n\nCareer Growth\n“Putting People First, Achieving our Mission Together”. E-INFOSOL is a people-first organization focusing on a positive employee culture that inspires creativity and innovation in support of our customers. With opportunities such as reimbursement and bonuses based on completion of certifications, we invest in our employees’ career growth.\n\nBenefits\nMedical – 100% company paid premiums for employees with dependent options.\nDental and Vision\nRetirement Savings (401k) up to 4% match\nHealth Savings Account (HSA), FSA and DCFSA\nCompany-paid Short/Long-term disability (w/ additional supplemental options)\nCompany-paid Life and AD&D (w/ additional supplemental options)\nGenerous Paid Time Off and ALL 11 Federal Holidays\nLegal and Identity Protection Services\nBonuses for certifications and reimbursement\nEmployee Perks:\nUberOne, Company Outings (Sporting events, Happy Hours, etc.), Discounts on services including Pet Insurance\n\nCompany Awards\nSBA 8(a) Certified\nSDVOSB\nGSA Contract Holder\nInc. 5000\n\nEqual Employment Opportunity Policy\nE-INFOSOL LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.\nThis policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.\nWebsite: E-INFOSOL.com","datePosted":"2026-08-04T18:07:11.715Z","dateModified":"2026-08-04T18:07:11.715Z","hiringOrganization":{"@type":"Organization","name":"Einfosol","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Washington","addressRegion":"DC","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"064b8bb381a696eed35a54ef"},"url":"https://jobsearcher.com/jobs/064b8bb381a696eed35a54ef"}}