351 - Principal Software Tool Developer

About ARSIEM Corporation

At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. We provide support to multiple agencies across the United States Government. ARSIEM has an experienced workforce of qualified professionals committed to providing the best possible support.

As demand increases, ARSIEM continues to provide reliable and cutting-edge technical solutions at the best value to our clients. That means a career packed with opportunities to grow and the ability to have an impact on every client you work with. 

ARSIEM is looking for a motivated Principal Software Tool Developer to kick off a new effort within the Technology & Data Analysis mission. The software engineer will work closely with mission stakeholders, researchers and end users to develop innovative tools – from research concept to deployment – for daily use that will improve cryptanalytic engineering and analysis. This position will support one of our government clients in Annapolis Junction, MD.

Responsibilities

• Perform end-to-end (concept to reality) capability development, taking research-based approaches – often software prototypes and algorithms – to create tools for cryptanalytic engineering and analysis.
• Savvy with enterprise Java application development in order to take existing tool base, understand the tool's functionality from documentation and research, examine new parameters needed, and lead overall development. 
• Will perform software & architecture review, transition and release planning, maintenance, automated testing, debugging, user support, version control, and new feature development.

Minimum Qualifications

• Bachelor's degree plus 11-years of relevant experience or equivalent. 
• Proficiency with JAVA, Python, Rust, C++, TypeScript, VisualStudio, Gitlab.

Preferred Qualifications

• Graph representation and transformation to alt graph structures, digital logic emulation; re-architecture to object-oriented techniques, file parsing and generation with optimization framework

$216,000 - $241,000 a year

The ARSIEM pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other laws.

Benefits:

For an overview of our benefits, please visit our benefits tab.

Original Posting Date:

2026-02-02

Clearance Requirement: This position requires an active TS/SCI with a polygraph. You must be a U.S. citizen for consideration.

Candidate Referral: Do you know someone who would be GREAT at this role? If you do, ARSIEM has a way for you to earn a bonus through our referral program for persons presenting NEW (not in our resume database) candidates who are successfully placed on one of our projects. The bonus for this position is $10,000, and the referrer is eligible to receive the sum for any applicant we can place within 12 months of referral. The bonus is paid after the referred employee reaches six months of employment.

ARSIEM is proud to be an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other federally protected class.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.