CNO Software Developer

T-Rex Solutions, LLC; Fort Meade (MD); On-site; USD 150,000 - 250,000; Full time

Benefits offered by this job

Competitive salary

Paid parental leave

Health, vision, and dental benefits

Annual training and professional development budget

401(k) plan with company match

Immediate PTO usage

Job summary

T-Rex Solutions, LLC is seeking experienced CNO Developers to analyze systems and enhance security techniques. The role involves coding, vulnerability research, and team collaboration. Candidates should possess a Bachelor’s degree with four years of experience or eight years of relevant experience. A TS/SCI security clearance and U.S. citizenship are mandatory for this position. Competitive salary ranges from $150,000 to $250,000, alongside various benefits including health plans and training budgets.

Qualifications

• 4 years experience with a Bachelor's degree or 8 years experience.
• Active TS/SCI security clearance required.
• U.S. citizenship required.

Responsibilities

• Analyze systems to understand their behavior.
• Develop and defeat advanced security techniques.
• Write code and audit existing code.

Skills

Understanding of OS Internals

Experience with vulnerability research

Experience reading or writing assembly

Experience developing embedded systems

Understanding of network protocols

Understanding of exploit mitigations

Experience using reverse engineering tools

Experience using debuggers

Experience with BDI/JTAG

Experience with modern C++ development

Experience building tools to find and exploit vulnerabilities

Education

Bachelor’s degree

Tools

IDA Pro

HexRays

Ghidra

Binary Ninja

objdump

gdb

WinDbg

OllyDbg

Job description

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.

Desired Skills

• 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, HexRays, Ghidra, Binary Ninja, or objdump
• Experience using debuggers such as gdb, WinDbg, OllyDbg
• 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

Qualifications

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.

Benefits

• 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)

Equal Opportunity Employer

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.