{"schemaVersion":"jobsearcher.job.v1","id":"d01b5664f6523161f2f0b317","url":"https://jobsearcher.com/jobs/d01b5664f6523161f2f0b317","canonicalUrl":"https://jobsearcher.com/jobs/d01b5664f6523161f2f0b317","title":"Interface Developer","description":"Interface Developer\r\nSpringfield, VA\r\nActive TS/SCI with CI Polygraph\r\nCornerstone is seeking highly motivated Developers to build and implement functional software solutions, that thrives in a fast-paced, agile environment including the ability to engage in open and animated peer review sessions, able to change direction quickly, and an eagerness to learn new technologies.\r\nThe ideal team member is a self-starter with effective problem-solving skills, excellent written and verbal communication, and a curiosity for new challenges and experiences. Additionally, candidates will ideally have experience that highlights their critical thinking skills, lifelong learning habits, and effective presentation skills to help team members and clients understand issues, opportunities, and proposed solutions. The selected candidate will build and implement functional software solutions in a fast-paced, agile environment and have the ability to engage in open and animated peer review sessions, change direction quickly, and an eagerness to learn new technologies.\r\nJob Requirements\r\nCollaborate with software architects and developers.\r\nCollaborate with the project managers, analysts, and customers in the analysis, design, creation, and maintenance of integration solutions.\r\nProduce code to develop easy maintenance and extension of software products.\r\nIntegrate software components and third-party programs.\r\nUnderstand and demonstrate development skills utilizing ASP.NET, .NET Core, .NET Framework, C#, and JavaScript/JQuery.\r\nTroubleshoot, debug, and upgrade existing software.\r\nPerform validation and verification testing prior to deploying implementations.\r\nRecommend and execute improvements.\r\nCreate technical documentation for reference and reporting.\r\nRequired Experience\r\n5+ years of experience with software development, infrastructure development, or related field.\r\nWorking understanding of SQL, SSL Certificates, and Single Sign on Configurations.\r\nUnderstanding of the asp.net application lifecycle from IIS to the DOM.\r\nCreate and consume REST and SOAP web services.\r\nExperience with Windows environment and Visual Studio.\r\nExperience with .NET, SaaS.\r\nExperience with Scrum/Agile methodologies.\r\nGood verbal and written communication skills.\r\nAble to multitask and manage time efficiently.\r\nAbility to work independently and in a team.\r\nBenefits Overview\r\nMedical, Dental and Vision Plans\r\nGenerous PTO Policy\r\n401(k)\r\nHSA and FSA options\r\nLife and Disability Insurance\r\nTuition Reimbursement and Training\r\nPerks at Work Discount Program\r\nReferral Program\r\nLeads Generation Program\r\nCollegeAmerica 529\r\nFitness Reimbursement Program\r\nTravel Assistance\r\nNorton Lifelock Benefit Solutions\r\nLife Planning Financial & Legal Services\r\nJ-18808-Ljbffr","company":"Cornerstone Defense","rawCompany":"cornerstone defense","city":"Springfield","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-07-04T02:25:43.007Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1255.00","title":"Web and Digital Interface Designers","slug":"web-and-digital-interface-designers"}],"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":"Interface Developer","description":"Interface Developer\r\nSpringfield, VA\r\nActive TS/SCI with CI Polygraph\r\nCornerstone is seeking highly motivated Developers to build and implement functional software solutions, that thrives in a fast-paced, agile environment including the ability to engage in open and animated peer review sessions, able to change direction quickly, and an eagerness to learn new technologies.\r\nThe ideal team member is a self-starter with effective problem-solving skills, excellent written and verbal communication, and a curiosity for new challenges and experiences. Additionally, candidates will ideally have experience that highlights their critical thinking skills, lifelong learning habits, and effective presentation skills to help team members and clients understand issues, opportunities, and proposed solutions. The selected candidate will build and implement functional software solutions in a fast-paced, agile environment and have the ability to engage in open and animated peer review sessions, change direction quickly, and an eagerness to learn new technologies.\r\nJob Requirements\r\nCollaborate with software architects and developers.\r\nCollaborate with the project managers, analysts, and customers in the analysis, design, creation, and maintenance of integration solutions.\r\nProduce code to develop easy maintenance and extension of software products.\r\nIntegrate software components and third-party programs.\r\nUnderstand and demonstrate development skills utilizing ASP.NET, .NET Core, .NET Framework, C#, and JavaScript/JQuery.\r\nTroubleshoot, debug, and upgrade existing software.\r\nPerform validation and verification testing prior to deploying implementations.\r\nRecommend and execute improvements.\r\nCreate technical documentation for reference and reporting.\r\nRequired Experience\r\n5+ years of experience with software development, infrastructure development, or related field.\r\nWorking understanding of SQL, SSL Certificates, and Single Sign on Configurations.\r\nUnderstanding of the asp.net application lifecycle from IIS to the DOM.\r\nCreate and consume REST and SOAP web services.\r\nExperience with Windows environment and Visual Studio.\r\nExperience with .NET, SaaS.\r\nExperience with Scrum/Agile methodologies.\r\nGood verbal and written communication skills.\r\nAble to multitask and manage time efficiently.\r\nAbility to work independently and in a team.\r\nBenefits Overview\r\nMedical, Dental and Vision Plans\r\nGenerous PTO Policy\r\n401(k)\r\nHSA and FSA options\r\nLife and Disability Insurance\r\nTuition Reimbursement and Training\r\nPerks at Work Discount Program\r\nReferral Program\r\nLeads Generation Program\r\nCollegeAmerica 529\r\nFitness Reimbursement Program\r\nTravel Assistance\r\nNorton Lifelock Benefit Solutions\r\nLife Planning Financial & Legal Services\r\nJ-18808-Ljbffr","datePosted":"2026-07-04T02:25:43.007Z","dateModified":"2026-07-04T02:25:43.007Z","hiringOrganization":{"@type":"Organization","name":"Cornerstone Defense","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Springfield","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"d01b5664f6523161f2f0b317"},"url":"https://jobsearcher.com/jobs/d01b5664f6523161f2f0b317"}}