CNO Software Engineer (TS/SCI w/ Poly)

SIXGEN; Maryland; On-site; USD 250,000 - 300,000; Full time

Benefits offered by this job

100% employer-funded health, dental, vision, and life insurance

Flexible leave policy

Flexible hours and opportunities to work from home

4% 401(k) contribution, vested immediately

Reimbursements for training and memberships

Yearly training budget for education or certifications

Job summary

SIXGEN is seeking a CNO Engineer based in Maryland. The successful candidate will engage in software development, binary/network protocol reverse engineering, and large-scale data analysis to support federal missions. Candidates should have a strong proficiency in C/C++ and Python, along with knowledge of OS internals and CNO techniques. The role offers competitive salary, flexible hours, a generous benefits package, and opportunities for continuous education and training. Join SIXGEN to tackle complex challenges in an inclusive environment.

Qualifications

• 7+ years of experience, with Team Lead roles available for candidates with 10+ years.
• Availability of TS/SCI clearance with polygraph.

Responsibilities

• Develop modular code that interfaces with a large-scale framework.
• Engage in software development and binary/network protocol reverse engineering.
• Collaborate with fellow developers on CNO efforts.
• Support federal customers through rigorous analysis and development.

Skills

C/C++ proficiency

Python proficiency

OS internals understanding

Knowledge of network protocols

Common CNO techniques knowledge

Reverse engineering experience

Windows/Linux development

Assembly programming skills

VR/RE research experience

Tools

Ghidra

IDAPRO

Job description

Position Overview

As a CNO Engineer at SIXGEN, you'll work at the intersection of software development, binary and network protocol reverse engineering, and large‑scale data analysis. Your contributions will support federal customers’ missions and enrich the team’s capabilities in advanced CNO development.

Job Details

Job Type: Full‑time

Location: Annapolis Junction, MD.

Clearance Requirements: TS/SCI with polygraph

Years of Experience: 7+ years (Team Lead roles available if 10+ years)

Salary

Anticipated salary range: $250,000 - $300,000 per year, depending on experience.

Responsibilities

• Develop modular code that interfaces with a large‑scale framework.
• Engage in software development, binary and network protocol reverse engineering, and large‑scale data analysis.
• Collaborate with fellow developers on CNO efforts.
• Provide meaningful support to federal customers through rigorous analysis and development.

Qualifications

• Strong proficiency in C/C++ and Python.
• In‑depth understanding of OS internals and network protocols.
• Familiarity with modern software engineering concepts.
• Knowledge of common CNO techniques.
• Experience in reverse engineering, preferably using Ghidra or IDAPRO, focusing on embedded (ARM/MIPS) systems.
• Windows/Linux CNO development experience with a focus on persistence.
• Assembly programming skills.
• Experience with VR/RE research.
• Availability of TS/SCI clearance with polygraph.

Benefits

• 100% employer‑funded health, dental, vision, and life insurance.
• Flexible leave policy (Need vacation – take it!).
• Flexible hours and opportunities to work from home.
• 4% 401(k) contribution, vested immediately.
• Reimbursements for training events, gym memberships, cell phone and internet bills, and lunches with coworkers.
• Training budget to continue education or certifications yearly.

About the Company

SIXGEN is committed to solving our customers' hardest problems with eagerness, effectiveness, and efficiency. We reject the status quo and constantly push the boundaries of our field.

SIXGEN recognizes that a company is nothing without well‑cared for employees. We cultivate an encouraging and innovative workplace environment and give employees flexibility to work on their terms.

At SIXGEN, we embrace people of all backgrounds. We are an equal opportunity employer.

For more information, please reach out to our Human Strategist Amy Maxwell: [e-mail].