Senior Software Tool Developer

Leidos; Fort Meade (MD); On-site; USD 108,000 - 195,000; Full time

Benefits offered by this job

PTO

11 holidays

401(k) match

Flexible schedules

Stock purchase plan

Upskilling & training

Parental leave

Job summary

Leidos is seeking a Senior Tool Developer in its Intel Sector for end-to-end tool development in cryptanalytic engineering. The role collaborates with researchers and mission stakeholders to move software from concept to deployment, delivering innovative tools for daily cryptanalytic use.

The ideal candidate has a Bachelor's degree with 8–12 years of relevant experience and proficiency in Java, Python, Rust, C++, TypeScript, Visual Studio, and GitLab. Active TS/SCI with Polygraph is required.

Qualifications

• Bachelor's degree plus 8-12 years of relevant experience or equivalent.
• Proficiency with JAVA, Python, Rust, C++, TypeScript, VisualStudio, Gitlab.

Responsibilities

• End-to-end capability development from concept to deployment for cryptanalytic tools.
• Lead software and architecture review, testing, and release planning; provide user support.

Skills

Java

Python

Rust

C++

TypeScript

Visual Studio

GitLab

Education

Bachelor's degree

Tools

Visual Studio

GitLab

Job description

Leidos has a new and exciting opportunity for a Senior Tool Developer in our Intel Sector. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary: Our program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact. Seeking a motivated tool developer to join a growing project 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. Qualified candidates are eligible for enhanced incentives including up to a $25K cash sign on bonus or a paid time off bonus.

Job Responsibilities/Qualifications:

Mission Focus: 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.

Technical Proficiency:

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.

Qualifications:

Bachelor's degree plus 8-12 years of relevant experience or equivalent. Proficiency with JAVA, Python, Rust, C++, TypeScript, VisualStudio, Gitlab.

Security Clearance:

Must possess an active TS/SCI with Polygraph to be considered for this role.

Desirable Skills:

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

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 and moving faster than anyone else dares.

Original Posting:

October 15, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00 The Leidos 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) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.