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# Senior Software Engineer

- **Company:** Toyon Research Corporation
- **Location:** Ashburn, VA, United States
- **Experience:** Expert
- **Salary:** $130,000.0 - $190,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Geographic Information Systems, Systems Engineering, ArcGIS (Software), C Sharp (Programming Language), C++ (Programming Language), Configuration Management, Databases, Revision Control Systems, Design of User Interfaces, Python (Programming Language), Search Algorithms, Object-Oriented Software Development, Software Engineering, SQL Databases, TypeScript, Virtual Machines, ReactJS, Information Technology
- **Published:** July 1, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9005767/senior-software-engineer

## About the Role

Toyon is seeking individuals capable of developing object-oriented software in C++, C#, Java, JavaScript and/or Python. The experienced software engineer will design, develop, test, and perform analysis in a highly technical environment. This position is an opportunity to work on a software engineering team with senior staff members guiding the development of mission-critical planning and decision-support systems for government customers. Motivation and a drive to implement robust software with intuitive user interfaces is required. Qualified candidates will have demonstrated software engineering capabilities and success working in a collaborative environment with configuration management and version control tools.

Qualified candidates will also have experience performing project management work and support, including tracking and confirming technical performance, monitoring budgets, writing status reports and briefings for customer review.

Requirements

Candidates with at least 7 years of relevant professional experience and a Bachelor's or advanced degree in computer science or engineering are encouraged to apply.

The ideal candidate will have the following experience, skills and ambition:

 * Excellent thinking and problem-solving skills
 * Ability to work with others to conceptualize and collaboratively solve problems
 * Object-oriented software development in C++, C#, Java, JavaScript, Python and/or other (React and/or TypeScript a plus)
 * Experience designing, developing, and performing analysis with database management systems, geographic Information systems, and/or other (DBMS, SQL, GIS such as ArcGIS, etc.)
 * Understanding of software and systems engineering for multi-machine deployments
 * At least 1 year of project management experience
 * Ability to configure and maintain virtual machines and host servers

Preferred:

 * Strong math skills, particularly for implementation of optimization and search methods
 * Experience with coding and testing numerical methods
 * Existing TS Clearance with SCI eligibility



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