Software Engineer, Cryptography

Annapolis, Maryland, United States

Software Engineer, Cryptography

ExistX - A Galois technology spinout

At ExistX, we bridge the gap between groundbreaking research and real-world applications. Harnessing the power of our cutting-edge software analysis and modeling techniques, our team brings unrivaled expertise, deep industry experience, and relentless drive to bear on the systems engineering challenges you face every day. 

As a Software Engineer with ExistX, you will develop and maintain software solutions that increase the assurance and reliability of cryptographic capabilities. Engineers work in small team settings and must successfully interact with clients, partners, and other employees in a highly cooperative, collaborative, and intellectually challenging environment.

Key Qualifications

  • Education– Minimum of a BS in computer science or mathematics.
  • Required Technical Expertise
  • Experience building highly performant, scalable, and reliable software systems for mission-critical applications
  • Experience with a modern programming language such as Rust, Java or Python
  • Knowledge of cryptographic algorithms and protocols
  • Ability to work in a small to rapidly prototype and operationalize new features and capabilities
  • Eagerness to learn new tools and techniques emerging from the R&D community
  • Demonstrated capability to take theoretical constructions, turn them into working implementations, and optimize them toward practical use.


This position will be full-time, onsite, and will be located in or around Annapolis, MD

Security and Citizenship Requirement

The employee must have an active TS/SCI security clearance and the ability to maintain a full-scope polygraph.

Benefits of Note

We offer a robust benefits package to provide for your and your family’s well-being, including:

  • 401(k) retirement plan with 5% employer match and immediate vesting
  • Fully paid medical insurance plans for you and your family
  • Dental and vision reimbursement plan
  • 3 weeks of vacation, paid sick leave, and 9 days of paid company holidays each year

Equal Employment Opportunity

ExistX is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race, ethnicity, national origin, ancestry, color, sex, gender identity or expression, sexual orientation, marital or parental status, pregnancy or childbirth, disability, age, religion, creed, genetic information, veteran status, or any other characteristic protected by applicable federal, state, or local law. We encourage and respect different viewpoints and experiences as being essential to the process of innovation. We strive to acquire, grow, and maintain a diverse and inclusive workplace that applies principles and standards equitably while supporting the needs and accommodations of the individual employee.

Consistent with the Americans with Disabilities Act (ADA) and federal and state laws, it is the policy of ExistX. to provide reasonable accommodation when requested by a qualified applicant or employee with a disability, unless such accommodation would cause an undue hardship. If you require reasonable accommodation in completing the employment application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please contact

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* Salary range is an estimate based on our InfoSec / Cybersecurity Salary Index 💰

Tags: Clearance Computer Science Cryptography Java Mathematics Polygraph Python R&D Rust Security Clearance TS/SCI

Perks/benefits: 401(k) matching Health care Insurance Medical leave Parental leave

Region: North America
Country: United States
Job stats:  5  0  0

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