CNO Software Developer

Responsibilities

Experienced CNO Developers at T‑Rex Solutions analyze systems to understand how they work and how they behave when they break. Candidates must be able to play both sides of the fence, developing and defeating new and advanced security techniques. Projects are undertaken in small teams with close coordination with customers. All our engineers write code, many spend as much time taking systems apart as building new ones.

A typical day can involve studying disassembly or writing Python to audit a piece of C++ code.

This position is an onsite role. There may be opportunities to lead small teams of developers and/or researchers.

• Understanding of OS Internals (e.g. Windows)
• Experience with vulnerability research
• Experience reading or writing assembly (x86, x64, ARM, PPC, MIPS, SPARC, 68k, or others)
• Experience developing embedded systems
• Understanding of network protocols (TCP/IP stacks, wire‑level protocols, RF communications, BGP, routing protocols, or others)
• Understanding of exploit mitigations such as DEP and ASLR
• Experience using reverse engineering tools such as IDA Pro, Hex Rays, Ghidra, Binary Ninja, or objdump
• Experience using debuggers such as gdb, Win Dbg, Olly Dbg
• Experience with BDI/JTAG
• Experience with modern C++ development (RAII, C++11 and C++14)
• Experience building and using tools to find, exploit, and productize vulnerabilities in complex software systems

Typically requires a Bachelor’s degree and four (4) years’ experience or minimum eight (8) years experience.

Demonstrated experience programming in Assembly, C, C++, Java, Perl, or Python.

Active and transferable U.S. government issued TS/SCI with polygraph security clearance is required prior to start date.

U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

• Competitive salary in the range of $150,000 – $250,000, plus performance bonuses
• Annual base salary range in compliance with pay transparency guidelines
• Paid parental leave
• Individual and family health, vision, and dental benefits
• Annual budget for training, professional development, and tuition reimbursement
• 401(k) plan with company match fully vested after 60 days of employment
• PTO available to use immediately upon joining (prorated based on start date)

T‑Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non‑merit based factors.