Application Developer

Application developer 
Clearance: Must hold an active Secret security clearance
Location: Hybrid , Arlington, VA
Position Type: Full-Time
Company: VivSoft Technologies

About the company: 
At VivSoft, we aim to solve complex federal problems using emerging and open technologies in a collaborative and rewarding environment. VivSoft is a diverse team of strategists, engineers, designers, and creators experienced in building high-performance effective software, with impactful organizational design and organizational dynamics for software delivery. We build secure Software Factories based on DoD reference designs and NIST Frameworks for Cloud and DevSecOps. These factories deliver AI/ML Applications, Data Science Platforms, Blockchain, and Microservices for DoD, Healthcare, and Civilian Agencies.

Job Summary
We are seeking a skilled and detail-oriented Application Developer with a strong foundation in modern web development technologies. The ideal candidate will have hands-on experience with TypeScript-based UI development, C# microservices, and SQL Server databases. Familiarity with automated testing using Ruby and Selenium is essential, along with a solid understanding of unit testing practices. This role requires strong technical troubleshooting skills and the ability to work collaboratively across full-stack environments.

Key Responsibilities:

• Develop and maintain responsive front-end applications using TypeScript (.ts, .tsx) and (likely) React.
• Design and implement scalable C# microservices as part of a distributed architecture.
• Build and manage data interactions using SQL Server.
• Write and maintain end-to-end (E2E) test scripts using Ruby and Selenium to ensure application reliability.
• Implement and maintain unit tests to support robust and maintainable code.
• Collaborate with cross-functional teams including QA, DevOps, and product managers to deliver high-quality software.
• Participate in code reviews and contribute to continuous improvement practices.

Requirements:

• Proficiency in TypeScript; experience with React or similar libraries/frameworks is preferred.
• Strong backend development experience using C# and .NET.
• Solid understanding of relational databases, particularly SQL Server.
• Experience writing E2E tests in Ruby with Selenium.
• Good knowledge of unit testing principles and test-driven development (TDD) practices.
• Ability to work in an agile environment and manage tasks independently.

Benefits:

• Comprehensive Medical, Dental, and Visions Plans (Healthcare benefits are 100% employer-paid for employees only)
• Life Insurance
• Paid Time Off (Flexible/Combined PTO, Bereavement Leave, 11 Company Paid Holidays)
• 401K Retirement Plan with employer match
• Professional Development Training Reimbursement
• Flexible/remote work schedules