Full Stack Developer – .NET / Blazor / API Development 

Position Title: Full Stack Developer – .NET / Blazor / API Development 
Location: Remote (U.S.) with Occasional Travel 
Client: Federal / Public Sector Programs 
Work Authorization: Candidates must be authorized to work in the United States. U.S. Citizenship may be required based on client assignment. 
Application Email: careers@wintrio.com 

📩 To apply, please submit your resume to careers@wintrio.com or complete the application form below. 

Job Summary 

WINTrio LLC is seeking an experienced Full Stack Developer to design, develop, and maintain secure, scalable, and high-performance enterprise applications supporting Federal agencies and mission-critical programs. 

This role is responsible for building modern web applications across front-end, back-end, API, and database layers using Microsoft .NET technologies, Blazor, and cloud-native development practices. The successful candidate will collaborate with solution architects, DevSecOps engineers, cloud engineers, cybersecurity teams, and business stakeholders to modernize legacy applications and deliver secure, accessible, and resilient software solutions. 

The ideal candidate possesses strong experience with .NET Core, C#, Blazor, RESTful APIs, SQL databases, cloud platforms, and modern software development methodologies within Agile environments. 

Job Responsibilities 

• Design, develop, enhance, and maintain enterprise web applications using .NET Core, ASP.NET Core, C#, Blazor, and modern web technologies. 

• Develop responsive user interfaces using Blazor, HTML5, CSS3, JavaScript, Bootstrap, and related front-end technologies. 

• Design, build, document, and maintain RESTful APIs, Web APIs, and microservices supporting enterprise applications and system integrations. 

• Develop back-end business services, application logic, and integration components using .NET technologies. 

• Integrate applications with relational databases, enterprise APIs, cloud services, and third-party systems. 

• Support modernization of legacy applications into cloud-native, service-oriented, or microservices-based architectures. 

• Implement secure authentication and authorization using OAuth 2.0, OpenID Connect, Microsoft Entra ID (Azure AD), and identity management solutions. 

• Develop unit tests, integration tests, automated testing scripts, and quality assurance processes to improve software reliability. 

• Collaborate with DevSecOps teams to integrate CI/CD pipelines, deployment automation, and secure software delivery practices. 

• Perform application performance tuning, debugging, troubleshooting, and root cause analysis. 

• Develop software in accordance with secure coding practices, OWASP guidelines, Section 508 accessibility requirements, and Federal application development standards. 

• Prepare technical documentation, design specifications, API documentation, and software implementation guides. 

Required Qualifications 

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field. 

• Minimum five (5) years of experience in full stack software development. 

• Strong experience developing applications using C#, .NET Core, ASP.NET Core, and Blazor. 

• Experience building and consuming RESTful APIs and microservices. 

• Experience working with relational databases and SQL. 

• Understanding of Agile software development methodologies and the Software Development Life Cycle (SDLC). 

• Experience supporting enterprise application development and modernization initiatives. 

• Strong written and verbal communication skills. 

• Strong analytical, troubleshooting, and problem-solving abilities. 

Technical Areas 

Application Development 

• Full Stack Development 

• Enterprise Web Applications 

• Modern Web Development 

• Software Engineering 

• Object-Oriented Programming 

• Application Modernization 

Front-End Development 

• Blazor 

• HTML5 

• CSS3 

• JavaScript 

• TypeScript 

• Bootstrap 

• Responsive Design 

Back-End Development 

• .NET Core 

• ASP.NET Core 

• C# 

• RESTful APIs 

• Web API Development 

• Microservices Architecture 

Database Development 

• SQL Server 

• PostgreSQL 

• MySQL 

• Oracle Database 

• Database Design 

• Query Optimization 

Cloud & Integration 

• Microsoft Azure 

• Amazon Web Services (AWS) 

• Cloud-Native Applications 

• Enterprise Integration 

• API Integration 

Software Security 

• Secure Coding Practices 

• OWASP Top 10 

• OAuth 2.0 

• OpenID Connect 

• Microsoft Entra ID (Azure AD) 

• Section 508 Compliance 

• WCAG Accessibility Standards 

Tools & Platforms 

Programming Languages 

• C# 

• JavaScript 

• TypeScript 

Microsoft Technologies 

• .NET Core 

• ASP.NET Core 

• Blazor 

Front-End Frameworks 

• Blazor 

• React (Preferred) 

• Angular (Preferred) 

Object Relational Mapping (ORM) 

• Entity Framework 

• Dapper 

Cloud Platforms 

• Microsoft Azure 

• Amazon Web Services (AWS) 

DevSecOps & CI/CD 

• Azure DevOps 

• Jenkins 

• GitHub Actions 

• CI/CD Pipelines 

Version Control 

• Git 

• GitHub 

• GitLab 

• Bitbucket 

Container Platforms 

• Docker 

• Kubernetes 

• Azure Kubernetes Service (AKS) 

• Amazon Elastic Kubernetes Service (EKS) 

Testing & Quality Assurance 

• xUnit 

• NUnit 

• Selenium 

• Postman 

Monitoring & Observability 

• Application Insights 

• ELK Stack 

• Splunk 

Security Tools 

• SAST Tools 

• DAST Tools 

• Secure Code Analysis 

Preferred Certifications 

• Microsoft Certified: Azure Developer Associate 

• Microsoft Certified: Azure Solutions Architect Expert 

• AWS Certified Developer – Associate 

• Certified Scrum Master (CSM) 

• SAFe Practitioner 

Preferred Qualifications 

• Experience supporting Federal application development, modernization, or digital transformation programs. 

• Experience developing enterprise applications using Blazor within production environments. 

• Experience building cloud-native applications on Microsoft Azure or AWS. 

• Experience supporting Section 508 accessibility compliance and WCAG standards. 

• Experience working within DevSecOps, Agile, or CI/CD software delivery environments. 

• Familiarity with Federal cybersecurity, secure software development, and compliance requirements. 

Work Environment 

• Full-time position. 

• Remote within the United States. 

• Standard business hours Monday through Friday. 

• Occasional travel may be required in support of customer meetings, sprint planning sessions, technical workshops, and program activities. 

WINTrio Benefits 

• Healthcare (Medical, Dental, and Vision) 

• Flexible Spending Account (FSA) and Health Savings Account (HSA) 

• 401(k) and Retirement Savings Plan 

• Annual Bonus and Profit Sharing Opportunities 

• Paid Time Off (PTO) and Vacation 

• Employee Assistance Program (EAP) 

• Life, Personal, and Voluntary Disability Insurance 

Growth Opportunities 

There is ample opportunity to grow in multiple dimensions, including application modernization, cloud-native development, DevSecOps, artificial intelligence (AI), enterprise software engineering, cloud architecture, technical leadership, and business development. We are a completely employee-driven company, and our continued success is built on the talent, dedication, and innovation of our team members. 

Equal Opportunity Employer 

WINTrio LLC is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.