Sr. Software Engineer - Cobalt Strike

About the role

Whether you’re an experienced professional or just getting started, your contributions matter at Fortra. If you’re passionate about tackling meaningful challenges alongside talented team members committed to helping each other succeed, all while having lots of fun, we want to hear from you. We offer competitive benefits and salaries, personal and professional development opportunities, flexibility, and much more!

Responsibilities

• Design, implement, test, and maintain core Cobalt Strike functionality across native and Java-based components.
• Write high-quality C code for cross-platform capabilities, including Windows, Linux, and macOS, where reliability, maintainability, performance, and correctness matter.
• Work with Java-based components of the product, including feature development, maintenance, debugging, and integration of work.
• Debug complex issues across native code, Java code, Windows behavior, and customer environments.
• Collaborate with engineers, product managers, security researchers, QA, support, and other teams to design practical, maintainable solutions.
• Translate product ideas, customer needs, and security research into well-engineered product capabilities.
• Participate in design discussions, code reviews, testing, documentation, and Agile planning.
• Help improve engineering practices, internal tooling, build processes, reliability, and long-term maintainability.
• Serve as a technical resource for areas where you have deep expertise.

Qualifications

• Strong professional experience developing in C.
• Experience with Java, or the ability and willingness to work effectively in an existing Java codebase.
• Working knowledge of low-level operating system internals, especially Windows, with familiarity in Linux and/or macOS internals considered a plus.
• Experience designing, maintaining, and debugging complex production software.
• Strong problem-solving and analytical skills, with keen attention to detail.
• Ability to work independently on complex technical problems while communicating clearly with the team.
• Experience using Git and participating in code reviews in a collaborative engineering environment.
• A practical approach to software quality, including testing, documentation, maintainability, and secure coding practices.
• Strong written and verbal communication skills.
• High ethical standards and sound judgment, especially when working with offensive security technology.

Preferred Qualifications

• Experience with offensive security, red teaming, penetration testing, threat emulation, reverse engineering, malware analysis, endpoint security, or related security disciplines.
• Experience with Windows debugging or analysis tools such as WinDbg, Visual Studio Debugger, Process Monitor, Process Explorer, x64dbg, or similar tools.
• Experience with Python, scripting, build automation, compiler toolchains, or low-level debugging workflows.
• Experience applying AI/ML tools, including LLMs or coding agents, to improve software engineering workflows such as code analysis, debugging, testing, documentation, or developer productivity.
• Experience with compiler toolchains such as MinGW/LLVM, with a strong understanding of how compilation, linking, optimization, and binary generation work under the hood.

Pay

$120,000 - $165,000 USD

Schedule

Full-time

Benefits

• Health, dental, and vision coverage as of hire
• Immediate enrollment in 401(k), HSA, and FSA plans
• Flexible PTO policy
• Tuition and personal enrichment reimbursement
• Option to enroll in ID Theft Protection Program

Life at Fortra

Explore what Life at Fortra is all about, from perks that support holistic wellbeing to a culture that keeps you connected and empowered to make an impact beyond the job.

EEO/Affirmative Action Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, veteran or disability status.