Senior AI/ML Software Developer - TS/SCI with Poly (req-243)

CATHEXIS· Information Technology
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📍 Tysons, Virginia, United StatesFull time💰 USD 148K–179K

About this role

Team CATHEXIS elevates the government contracting experience through rapid response, deep skill, and thoughtful problem-solving and communication. Our core capabilities are our top-tier program and project management, data analytics, and audit services, the backbone of which is our integrated approach to operational excellence. 

You worked hard to get to where you are. You strive to make every day better than the day before. So do we. Team CATHEXIS operates with an all-in mindset. We are working together to create a company that supports our shared values and individual goals. Our values are centered around leading with integrity, owning the outcome, growing together, and moving with purpose in everything we do for our employees, customers, partners, and communities. We believe success is best when we listen and lead with empathy; model high standards of ethics to provide a rewarding candidate experience; work hard, have fun, and appreciate the strengths we all bring to the team; and empower our employees to create innovative and trusted results.

We are looking for a dynamic Senior AI/ML Software Developer with a TS/SCI with Poly clearance to join our team. The Senior AI/ML Software Developer will work alongside a team of highly skilled engineers in the development of AI applications. A motivated and qualified candidate will not only have hands-on development experience in (JavaScript, Python or Java) but also a willingness to collaborate with teams to solve problems. We’re seeking curious and creative technical staff who are excited about delivering quality solutions.  

We are proactively building a pipeline of qualified candidates for future opportunities that may arise. If your background aligns with our anticipated needs, a member of our Talent Acquisition team may reach out should a role become available or to proactively screen you for the role.

Responsibilities

The responsibilities include, but are not limited to:

  • Collaborate with other developers, staff and leadership to design solutions that solve customer problems.
  • Design, develop, and maintain technical solutions.
  • Build and improve tools for users to understand and analyze large-scale data.
  • Perform debugging, troubleshooting, modifications and testing of software and solutions.
  • Develop documentation, and collaborate in the development of technical procedures and user support guides.
  • An active TS/SCI CI Poly or FS Poly clearance is required.
  • Bachelor’s degree in computer science or related field.
  • 5+ years relevant experience.
  • Experience with JavaScript, Java, or other object-oriented programming language(s).
  • Hands-on experience and understanding of object-oriented programming, data structures, algorithms, profiling & optimization.
  • Passion for developing team-oriented solutions to complex engineering problems.
  • Proficient in leveraging modern LLM tools to accelerate development workflows and enhance code quality.

CATHEXIS offers competitive compensation packages to all eligible employees. Our goal is to provide a compensation package that reflects the value you bring to our team, is competitive with national average market rates, and promotes your financial security and personal well-being. The annual salary range for this role is $148,000.00 - $179,000.00 Please note that the salary information provided is a general guideline. CATHEXIS considers various factors in its final offer, including location, qualifications, experience, and skills. 

  • Performance Bonuses
  • Medical Insurance
  • Dental Insurance
  • Vision Insurance
  • 401(k) Plan (Traditional and ROTH)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off
  • 11 Federal Holidays
  • Parental Leave
  • Commuter Benefits
  • Short Term & Long Term Disability
  • Training & Development
  • Wellness Program
  • Community Outreach Initiatives

CATHEXIS is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability EEO IS THE LAW. If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact the Recruiting Department RecruitingTeam@cathexisfederal.com.

Frequently Asked Questions

What is the salary for the Senior AI/ML Software Developer - TS/SCI with Poly (req-243) role at CATHEXIS?
The listed salary for this Senior AI/ML Software Developer - TS/SCI with Poly (req-243) position at CATHEXIS is USD 148K–179K. This is an Full time role.
Where is the Senior AI/ML Software Developer - TS/SCI with Poly (req-243) position at CATHEXIS located?
This Senior AI/ML Software Developer - TS/SCI with Poly (req-243) role at CATHEXIS is based in Tysons, Virginia, United States. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior AI/ML Software Developer - TS/SCI with Poly (req-243) role at CATHEXIS full-time or part-time?
This is listed as a Full time position. It is posted as a Senior AI/ML Software Developer - TS/SCI with Poly (req-243) role in the Information Technology department at CATHEXIS.
Which team or department does the Senior AI/ML Software Developer - TS/SCI with Poly (req-243) at CATHEXIS belong to?
This Senior AI/ML Software Developer - TS/SCI with Poly (req-243) position is part of the Information Technology department at CATHEXIS. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior AI/ML Software Developer - TS/SCI with Poly (req-243) position at CATHEXIS?
Click the "Apply Now" button on this page. You will be redirected to CATHEXIS's official application portal hosted on workable where you can submit your application directly.
When was the Senior AI/ML Software Developer - TS/SCI with Poly (req-243) job at CATHEXIS posted?
This Senior AI/ML Software Developer - TS/SCI with Poly (req-243) position at CATHEXIS was posted on Jul 22, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior AI/ML Software Developer - TS/SCI with Poly (req-243)
CATHEXIS · 💰 USD 148K–179K
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