Senior Cyber Software Engineer
STR, Woburn, MA +1
- Pay
- $138K–$190K / year
- Work type
- Not stated
- Level
- Senior
- Area
- Security engineering
- Posted
- 2 days ago
Check my fit
See how your résumé lines up with this role: where you match, what's missing, and lines worth rewording.
About the role
The Defensive Cyber Technologies (DCT) group at STR is seeking a Senior Cyber Software Engineer to develop software and technical capabilities that improve the security and resiliency of critical national defense systems. Our team hardens customer codebases, conducts cybersecurity assessments of operational software, and develops and applies first-of-its-kind cybersecurity tools to identify and remediate vulnerabilities before they affect mission-critical systems.
What you'll do:
- Work as part of a high-functioning team to apply advanced software engineering principles to develop robust, resilient software solutions for national security missions
- Perform comprehensive security assessments on operational software and mission-critical systems
- Identify, validate, and remediate vulnerabilities
- Design, build, and execute novel fuzzing campaigns to uncover security weaknesses
- Develop static and dynamic analysis tools to detect, report, and remediate vulnerabilities in software systems
- Communicate technical findings, risk, and remediation recommendations to engineering and customer stakeholders
Who you are:
- This position requires an Active Secret or Top Secret security clearance, for which US citizenship is needed by the US Government.
- Bachelors degree in Computer Science, or related field with a minimum 5 years of relevant professional experience (MS plus 3 years experience or PhD may be considered)
- Strong proficiency in C or C++ and the ability to learn and work effectively in additional languages as needed
- Strong systems programming foundation, including familiarity with OS internals, ABI/calling conventions, memory and process management, and assembly-level debugging
- Experience working with compiler and build toolchains such as LLVM/Clang, GCC, and CMake.
Nice to have:
- Experience with dynamic analysis and fuzzing tools, such as PIN, DynamoRio, and AFL++
- Proficiency in Rust
- Experience with container and virtualization technologies, such as Docker and QEMU
- Familiarity with reverse engineering and binary analysis using tools such as Ghidra, IDA Pro, Binary Ninja, or objdump
Pay Information Full-Time Salary Range: $138,000 - $190,000
The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.
STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, Carlsbad, CA, Atlanta, GA, and Denver, CO. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.
Similar roles at other companies
Software Developer
Agile DefenseFort Meade, MD
$155K–$175K / yr
Posted 11 days ago
Cybersecurity Engineer 793
Freedom Technology Solutions GroupSt. Louis, MO +1
Pay not posted
Posted Oct 2, 2026
$155K–$175K / yr
Posted 11 days ago
Senior Cyber Security Engineer (Job 1480)
DLH Bethesda, Maryland
$150K–$170K / yr
Posted Oct 1, 2026
Listed on STR's Greenhouse job board; checked 5 h ago. First seen by us 33 h ago. Being listed doesn't mean the team is actively interviewing. We found this board in a public directory and haven't yet confirmed it against the company's own careers page.