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Senior Software Engineer


Job Location:

Ashburn, IL - USA

Monthly Salary: $ 130000 - 190000
Posted: 2 July 2026 (30+ days ago)
Application Deadline: 29 September 2026
Vacancies: 1 Vacancy

Job Summary

Full-time
Description

U.S. Citizenship Required. Ability to qualify for a US Department of Defense security clearance required.


This position is in-person (non-remote).


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 Bachelors 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

WE OFFER AN EXCEPTIONAL EMPLOYEE BENEFITS PACKAGE!

  • Competitive Industry Pay
  • 100% Employer-Paid Medical Insurance Premium
  • HSA with Employer Contributions
  • Dental and Vision Coverage Options
  • Paid Holidays
  • Paid Vacation and Sick leave
  • Company Funded 401(k) and Profit Sharing Plans
  • Employee Stock Ownership Plan (ESOP)
  • Life and Disability Insurance
  • Paid Parental Leave
  • Discretionary Bonus Eligibility

The annual pay range for the Senior Software Engineer position is $130000 to $190000.


The posted pay range values provide the candidate with guidance on annual base compensation for the position at a full time level of effort exclusive of overtime bonus and benefits-related compensation over a range of qualifications that may fit hiring objectives. Toyon Research Corporation will consider the individual candidates education work experience applicable knowledge skills and training among other factors when preparing an offer of employment.


Equal Opportunity Employer including Disability and Veterans


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Learn more about our company in our latest video We are Toyon.


Ref #2556-G


Required Experience:

Senior IC


About Company

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Toyon is employee-owned with approximately 200 employees. Our collaborative culture and employee-owned mindset creates a unique environment of eager and dedicated contributors at every level. Toyon is committed to enabling technical talent to blaze trails on mission-critical technical ... View more

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