Senior Software Engineer - Cross-Platform Security Core (C/Java)

Fortra; United States; On-site; USD 120,000 - 165,000; Full time

Benefits offered by this job

Health coverage

401(k) plan

HSA

FSA

Flexible PTO

Tuition reimbursement

ID Theft Protection

Job summary

Fortra is seeking a Senior Software Engineer to join the Cobalt Strike engineering team. This hands-on role focuses on building and maintaining systems-level capabilities across native and Java components, with a focus on Windows behavior and cross-platform reliability.

You will write C code for cross-platform support and contribute to Java-based features, debugging, and integration within a security product environment.

Qualifications

• Strong professional experience developing in C.
• Experience with Java, or the ability and willingness to work in an existing Java codebase.
• Working knowledge of low-level operating system internals, especially Windows.
• Experience designing, maintaining, and debugging complex production software.

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 (Windows, Linux, macOS).
• Work with Java-based components, including feature development, maintenance, and debugging.
• Debug complex issues across native code, Java code, Windows behavior, and customer environments.
• Collaborate with engineers, product managers, security researchers, QA, and support to design practical solutions.
• Translate product ideas and security research into well-engineered capabilities.

Skills

C programming

Java

Windows internals

Code reviews

Git

Testing & documentation

Tools

WinDbg

Visual Studio Debugger

Process Monitor

Process Explorer

x64dbg

Python

Git

Job description

Fortra is seeking a Senior Software Engineer to join the Cobalt Strike engineering team. This hands-on role focuses on building and maintaining systems-level capabilities across native and Java components, with a focus on Windows behavior and cross-platform reliability.

You will write C code for cross-platform support and contribute to Java-based features, debugging, and integration within a security product environment.