{"schemaVersion":"jobsearcher.job.v1","id":"30490ec3a19c975aeb99f3f8","url":"https://jobsearcher.com/jobs/30490ec3a19c975aeb99f3f8","canonicalUrl":"https://jobsearcher.com/jobs/30490ec3a19c975aeb99f3f8","title":"Software Engineer","description":"Position Overview:\n\nThis individual contributor will work in Exostar’s Microsoft 365 and Secure Collaboration product engineering team to design, develop, and support cloud services that extend Microsoft Teams, SharePoint Online, and the broader Microsoft 365 platform for customers in the Aerospace and Defense and other highly regulated industries. The successful candidate will be a seasoned full-stack software engineer with deep, hands-on experience developing, testing, and supporting complex, highly scalable, and dependable solutions on the Microsoft technology stack, deployed to both Azure Commercial and Azure Government clouds. This individual must possess strong technical skills coupled with excellent interpersonal and communication skills.\n\nResponsibilities: Your day if you join us:\n\nDesigning and developing full-stack solutions using C#/.NET, ASP.NET Core Web API, and Angular, employing industry-best design patterns and development practices.\nBuilding and extending Microsoft 365 integrations, including Microsoft Teams applications, SharePoint Online solutions, and Microsoft Graph API integrations, within a Product Engineering & Development team.\nDesigning, deploying, and operating cloud services in both Azure Commercial and Azure Government (GCC / GCC High) environments, meeting the security and compliance requirements of regulated customers.\nDesigning relational data models and writing and tuning SQL Server queries, stored procedures, and data access code.\nAssisting product managers and customers in understanding Exostar technology, products, and services.\nMentoring development teams on design patterns and evangelizing software development practices and processes.\nLeading design reviews and code walkthroughs for small teams, and presenting architecture and designs to Exostar customers and the management team.\nOwning the product from inception through deployment and support in production.\n\nBasic Qualifications: You meet our “must-haves” for this role if:\n\n8+ years of hands-on experience in software development using Microsoft .NET and modern web technologies.\nA Bachelor’s degree in Computer Science, Engineering, Information Systems, or a related technical field, or the foreign equivalent.\nProven experience leading the design, development, and deployment of at least one major web application or product.\nStrong foundation in Object-Oriented Programming (OOP), SOLID principles, and software design patterns.\nDeep understanding of Data Structures and Algorithms.\n8+ years of experience with C# and the .NET ecosystem, including .NET 6 or newer, ASP.NET Core, and Entity Framework Core.\nExtensive experience designing and building RESTful APIs and microservices on .NET.\nHands-on experience developing Microsoft 365 solutions, including Microsoft Teams apps (tabs, bots, messaging extensions), SharePoint Online (SPFx, SharePoint REST / CSOM), and the Microsoft Graph API.\nExperience with the Microsoft identity platform and Microsoft Entra ID (Azure AD), including OAuth 2.0, OpenID Connect, app registrations, and delegated and application permission models.\nExperience building and deploying solutions on Microsoft Azure, including Azure App Service, Azure Functions, Azure Storage, Azure Key Vault, Azure Service Bus, and Application Insights.\nExperience working in Azure Government (GCC / GCC High) as well as Azure Commercial, with an understanding of the differences between sovereign and commercial cloud endpoints and services.\nProficiency with relational databases, especially Microsoft SQL Server, including schema design, T-SQL, stored procedures, and query performance tuning.\nFamiliarity with CI/CD pipelines using Azure DevOps or GitHub Actions, and infrastructure-as-code such as ARM / Bicep or Terraform.\nExperience developing and integrating large-scale distributed web applications.\nFront-end development experience with HTML5, CSS3, SASS, JavaScript, and TypeScript.\nProficiency in Angular 12+, Angular Material, RxJS\nStrong testing background using xUnit, NUnit, or MSTest with Moq for unit and integration testing, and Jasmine / Karma or Jest for front-end tests.\nExperience with .NET performance tuning, profiling, and production diagnostics.\nSkilled in building responsive UIs and Single Page Applications (SPAs), including Teams-hosted experiences using Fluent UI.\nA comprehensive understanding of web architecture, including platforms, APIs, caching, proxies, and databases.\nKnowledge of web security best practices, including protection against XSS, CSRF, and the OWASP Top 10 vulnerabilities.\nExperience working in Agile/SCRUM teams alongside architects, engineers, product managers, and QA.\n\nPreferred Qualifications – You are exactly who we are looking for if you:\n\nExperience with Hybrid-Cloud architecture and building cloud-native, multi-tenant SaaS solutions.\nExperience with Microsoft Teams meeting extensions, Adaptive Cards, Bot Framework, and Teams Toolkit.\nExperience with Power Platform (Power Automate, Power Apps) and SharePoint Framework (SPFx) web parts.\nUnderstanding of Web SSO technologies such as SAML, WS-Federation, and OAuth / OIDC, and identity federation with Microsoft Entra ID or ADFS.\nFamiliarity with FedRAMP, CMMC, NIST SP 800-171, and ITAR-driven requirements for building and operating software in Azure Government.\nExperience with containerization and orchestration (Docker, Azure Kubernetes Service).\nBackground in the Aerospace and Defense industry is a plus.\n\nLocation: Herndon, VA- Hybrid (3x/week)\n\nThe pay range for this position is $120,000k - 160,000k/yr; however, the final compensation will be determined based on factors including experience, skills, qualifications, and location. Exostar also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance, EAP, Flexible Spending Accounts, 401(k) matching, flexible time off and sick leave).\n\nExostar - The Company:\n\nExostar's cloud-based platforms create exclusive communities within the Aerospace and Defense, Life Sciences, and other highly regulated industries where members securely collaborate, share information, and operate compliantly. Within these communities we build trust. By analyzing community data, we provide insights and intelligence, enabling organizations to make better, timelier decisions, to mitigate risk, and operate more efficiently.\n\nWe believe in employee development: we promote internally and provide training and educational assistance\nWe provide a fun, engaged workplace, with social and community-building events\nWe offer comprehensive benefits and flexible time off plans\n\nEqual Opportunity Employer\nThis employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights (https://www.eeoc.gov/poster) notice from the Department of Labor.","company":"Exostar","rawCompany":"exostar","city":"Reston","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-09-25T10:48:10.124Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1211.00","title":"Computer Systems Analysts","slug":"computer-systems-analysts"}],"industries":[{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Software Engineer","description":"Position Overview:\n\nThis individual contributor will work in Exostar’s Microsoft 365 and Secure Collaboration product engineering team to design, develop, and support cloud services that extend Microsoft Teams, SharePoint Online, and the broader Microsoft 365 platform for customers in the Aerospace and Defense and other highly regulated industries. The successful candidate will be a seasoned full-stack software engineer with deep, hands-on experience developing, testing, and supporting complex, highly scalable, and dependable solutions on the Microsoft technology stack, deployed to both Azure Commercial and Azure Government clouds. This individual must possess strong technical skills coupled with excellent interpersonal and communication skills.\n\nResponsibilities: Your day if you join us:\n\nDesigning and developing full-stack solutions using C#/.NET, ASP.NET Core Web API, and Angular, employing industry-best design patterns and development practices.\nBuilding and extending Microsoft 365 integrations, including Microsoft Teams applications, SharePoint Online solutions, and Microsoft Graph API integrations, within a Product Engineering & Development team.\nDesigning, deploying, and operating cloud services in both Azure Commercial and Azure Government (GCC / GCC High) environments, meeting the security and compliance requirements of regulated customers.\nDesigning relational data models and writing and tuning SQL Server queries, stored procedures, and data access code.\nAssisting product managers and customers in understanding Exostar technology, products, and services.\nMentoring development teams on design patterns and evangelizing software development practices and processes.\nLeading design reviews and code walkthroughs for small teams, and presenting architecture and designs to Exostar customers and the management team.\nOwning the product from inception through deployment and support in production.\n\nBasic Qualifications: You meet our “must-haves” for this role if:\n\n8+ years of hands-on experience in software development using Microsoft .NET and modern web technologies.\nA Bachelor’s degree in Computer Science, Engineering, Information Systems, or a related technical field, or the foreign equivalent.\nProven experience leading the design, development, and deployment of at least one major web application or product.\nStrong foundation in Object-Oriented Programming (OOP), SOLID principles, and software design patterns.\nDeep understanding of Data Structures and Algorithms.\n8+ years of experience with C# and the .NET ecosystem, including .NET 6 or newer, ASP.NET Core, and Entity Framework Core.\nExtensive experience designing and building RESTful APIs and microservices on .NET.\nHands-on experience developing Microsoft 365 solutions, including Microsoft Teams apps (tabs, bots, messaging extensions), SharePoint Online (SPFx, SharePoint REST / CSOM), and the Microsoft Graph API.\nExperience with the Microsoft identity platform and Microsoft Entra ID (Azure AD), including OAuth 2.0, OpenID Connect, app registrations, and delegated and application permission models.\nExperience building and deploying solutions on Microsoft Azure, including Azure App Service, Azure Functions, Azure Storage, Azure Key Vault, Azure Service Bus, and Application Insights.\nExperience working in Azure Government (GCC / GCC High) as well as Azure Commercial, with an understanding of the differences between sovereign and commercial cloud endpoints and services.\nProficiency with relational databases, especially Microsoft SQL Server, including schema design, T-SQL, stored procedures, and query performance tuning.\nFamiliarity with CI/CD pipelines using Azure DevOps or GitHub Actions, and infrastructure-as-code such as ARM / Bicep or Terraform.\nExperience developing and integrating large-scale distributed web applications.\nFront-end development experience with HTML5, CSS3, SASS, JavaScript, and TypeScript.\nProficiency in Angular 12+, Angular Material, RxJS\nStrong testing background using xUnit, NUnit, or MSTest with Moq for unit and integration testing, and Jasmine / Karma or Jest for front-end tests.\nExperience with .NET performance tuning, profiling, and production diagnostics.\nSkilled in building responsive UIs and Single Page Applications (SPAs), including Teams-hosted experiences using Fluent UI.\nA comprehensive understanding of web architecture, including platforms, APIs, caching, proxies, and databases.\nKnowledge of web security best practices, including protection against XSS, CSRF, and the OWASP Top 10 vulnerabilities.\nExperience working in Agile/SCRUM teams alongside architects, engineers, product managers, and QA.\n\nPreferred Qualifications – You are exactly who we are looking for if you:\n\nExperience with Hybrid-Cloud architecture and building cloud-native, multi-tenant SaaS solutions.\nExperience with Microsoft Teams meeting extensions, Adaptive Cards, Bot Framework, and Teams Toolkit.\nExperience with Power Platform (Power Automate, Power Apps) and SharePoint Framework (SPFx) web parts.\nUnderstanding of Web SSO technologies such as SAML, WS-Federation, and OAuth / OIDC, and identity federation with Microsoft Entra ID or ADFS.\nFamiliarity with FedRAMP, CMMC, NIST SP 800-171, and ITAR-driven requirements for building and operating software in Azure Government.\nExperience with containerization and orchestration (Docker, Azure Kubernetes Service).\nBackground in the Aerospace and Defense industry is a plus.\n\nLocation: Herndon, VA- Hybrid (3x/week)\n\nThe pay range for this position is $120,000k - 160,000k/yr; however, the final compensation will be determined based on factors including experience, skills, qualifications, and location. Exostar also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance, EAP, Flexible Spending Accounts, 401(k) matching, flexible time off and sick leave).\n\nExostar - The Company:\n\nExostar's cloud-based platforms create exclusive communities within the Aerospace and Defense, Life Sciences, and other highly regulated industries where members securely collaborate, share information, and operate compliantly. Within these communities we build trust. By analyzing community data, we provide insights and intelligence, enabling organizations to make better, timelier decisions, to mitigate risk, and operate more efficiently.\n\nWe believe in employee development: we promote internally and provide training and educational assistance\nWe provide a fun, engaged workplace, with social and community-building events\nWe offer comprehensive benefits and flexible time off plans\n\nEqual Opportunity Employer\nThis employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights (https://www.eeoc.gov/poster) notice from the Department of Labor.","datePosted":"2026-09-25T10:48:10.124Z","dateModified":"2026-09-25T10:48:10.124Z","hiringOrganization":{"@type":"Organization","name":"Exostar","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Reston","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"30490ec3a19c975aeb99f3f8"},"url":"https://jobsearcher.com/jobs/30490ec3a19c975aeb99f3f8"}}