> Markdown version of [/jobs/ext/657563-senior-cno-developer-cyber263](https://www.wearedevelopers.com/jobs/ext/657563-senior-cno-developer-cyber263). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior CNO Developer (Cyber263)

- **Company:** INC Research
- **Location:** St. Petersburg, FL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Microsoft Windows, Unix, Continuous Integration, Software Debugging, Linux, Firmware, Networking Hardware, OSI Models, Python (Programming Language), Network Layer, Microsoft Visual Studio, Program Analysis, Reverse Engineering, Software Engineering, Subversion, Diagnostic Tools, Gitlab, Git, Build Management, Software Version Control, Atlassian Bamboo, Jenkins
- **Published:** June 26, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8998521/senior-cno-developer-cyber263

## About the Role

* Significant experience programming in C and Python
 * Direct experience developing CNO or exploit capabilities
 * Embedded or firmware development experience on resource-constrained systems
 * Experience developing in one (1) or more of the following:
 + Windows applications using Visual Studio or .NET environments
 + UNIX applications using make files or comparable build environments
 * Familiarity with software version control tools (e.g., Git, Subversion, or CVS)
 * Familiarity with CI/CD pipeline concepts and tools (e.g., Jenkins, GitLab, or Bamboo)
 * Experience using software debugging/troubleshooting tools and techniques
 * Software Analysis/Reverse Engineering experience
 * Comfort writing assembly or mixed C/ASM when the problem demands it
 * Excellent oral, written, and interpersonal skills, as well as the ability to effectively interact with customers

EVEN BETTER

 * Mentored and coached other engineers or fulfilled the role of Tech Lead
 * Experience working across OSI layers, including packet-level analysis and manipulation

## Description

* Build offense-grade software that operates in denied, constrained, and adversarial environments
 * Design, implement, and debug custom CNO capabilities across userland, kernel, and network layers
 * Tear down, modernize, and re-engineer legacy and acquired tooling for performance, stealth, and maintainability
 * Develop software that runs where defenders don't want it (Windows, Linux/Unix, embedded, mobile, and network devices)
 * Perform deep binary analysis and reverse engineering across architectures and calling conventions
 * Own and evolve reproducible build systems, toolchains, and test harnesses
 * Work close to the metal: compilers, loaders, memory, execution flow, and runtime behavior
 * Travel as determined by the customer


## Related Videos

- [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94)
- [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security)
- [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker)
- [One Pipeline, Three Regulator - SBOM Compliance for the Developer](https://www.wearedevelopers.com/videos/100169-one-pipeline-three-regulator-sbom-compliance-for-the-developer)
- [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews)
- [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers)

## Related Articles

- [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing)
- [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)
- [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers)
- [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)