Senior Principal Cyber Software Engineer

RogueThink • Chantilly, VA

5d • Onsite

About The Position

As a Senior Principal Cyber Software Engineer, you will support a mission-critical federal program focused on the design, development, and delivery of high-quality software solutions, with a strong emphasis on mobile and platform-level development. You will be responsible for defending architectural decisions in rigorous technical reviews and effectively communicating complex technical concepts to engineering teams and customer leadership. Your work will play a critical role in shaping mission direction and long-term technical success.

Requirements

• Active Secret security clearance; clearance must be in place by the start date and remain active throughout employment.
• Bachelor's degree with a minimum of 8 years of professional software development experience; or Master's degree with 6 years; or PhD with 4 years.
• Proficiency in one or more programming languages, including C, Rust, Java, Kotlin, C++, C#, or Python.
• Experience developing software on Agile teams.
• Experience developing applications for mobile platforms.
• Strong understanding of cybersecurity fundamentals.
• Strong understanding of the software development lifecycle (SDLC).
• Experience writing and maintaining software design documentation.

Nice To Haves

• Active Top Secret / SCI clearance with polygraph.
• Demonstrated leadership of software development teams and technical initiatives.
• In-depth understanding of cryptography best practices and secure software design.
• Advanced knowledge of Android and Linux system internals.
• Background in Android or Linux kernel and driver development.
• Familiarity with reverse engineering tools such as Ghidra or IDA Pro.
• Proven capability designing embedded software systems.
• Hands-on experience developing Flutter applications.
• Experience managing Linux virtual machines and virtualized environments.
• Working knowledge of Microsoft Azure DevOps pipelines and tooling.

Responsibilities

• Design, develop, test, and deliver secure software solutions supporting mission objectives.
• Lead and contribute across the full software development lifecycle (SDLC).
• Develop applications for mobile platforms, including Android-based environments.
• Defend software architecture and design decisions in formal technical reviews.
• Collaborate with cross-functional teams, including cybersecurity and systems engineering.
• Produce and maintain high-quality software design and technical documentation.
• Support modernization, sustainment, and enhancement of existing systems.
• Provide technical leadership, code reviews, and mentorship to junior engineers.
• Operate effectively within Agile development environments.

Benefits

• Compensation: We offer competitive compensation packages that reflect our core values of integrity, intelligence, and passion. In addition, performance bonuses are available to all employees and are based on individual contributions, company performance, and program management recommendations.
• Retirement Plans: Our 401(k) Matching program provides dollar-for-dollar matching on the first 6% of employee contributions to a traditional or Roth 401(k) through Vanguard.
• Employee Referral Bonuses: We value our employees' trusted recommendations. To recognize these referrals: $8,000 bonus for successfully hired TS/SCI-cleared candidates $5,000 bonus for all other successful referrals
• Paid Time Off (PTO): RogueThink offers competitive PTO policies that consider both program requirements and employee seniority.
• Observed Federal Holidays: We observe the following holidays: New Year's Day Martin Luther King Jr. Day Presidents Day Memorial Day Independence Day Labor Day Columbus Day Veterans Day Thanksgiving Day Christmas Day
• Insurance Coverage: We offer comprehensive insurance options, including: Health, Dental, and Vision Insurance Disability Insurance Accident and Critical Illness Insurance Life Insurance
• Leave Policies Family Leave: Five paid days following the birth or adoption of a child Bereavement Leave: Three paid days for the loss of an immediate family member
• Training and Development: We invest in our people. RogueThink offers a combination of online and in-person training to ensure our workforce stays ahead of industry trends and evolving technologies.
• Educational Assistance: We support your professional and continuing education goals by offering tuition assistance for eligible programs.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level