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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # CNO Developer - **Company:** Annapolis Junction Md - **Location:** Netherlands - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Apple IOS, Apple Mac Systems, Unit Testing, Bash Shell, C++ (Programming Language), CMake, Linux, Cryptographic Protocols, Make (Software), Python (Programming Language), Windows PowerShell, Software Engineering, Scripting, Containerization, Integration Tests, Information Technology, Build Tools, Code Restructuring, Multiplatform, Data Pipelines, Docker - **Published:** June 28, 2026 - **Apply:** https://itjobpro.com/job/senior-cno-developer-6/ ## About the Role MANTECH seeks a motivated, career and customer-oriented Senior CNO Developer to join our team in Annapolis Junction, MD., * Bachelor's Degree and 9+ years of experience OR High School Diploma/GED and 13+ years of experience OR Associate's degree and 11+ years of experience OR Master's Degree and 7+ years, OR a PhD with 5+ years of progressively responsible experience. * 3+ years software development experience, preferably in offensive / defensive cyberspace operations * Expert proficiency in compiled languages (C, C++, Rust, or Go) * Strong proficiency in scripting languages (Python, PowerShell, Bash) * Demonstrated experience developing capabilities for Windows and Linux target environments * Understanding of exploitation techniques and post-exploitation workflows * Familiarity with operational security considerations in capability development (evasion, anti-forensics, attribution) Preferred Qualifications: * Experience developing capabilities for MacOS, mobile (iOS, Android), or embedded platforms * Knowledge of containerization and capability packaging (Docker) * Understanding of encryption protocols and cryptographic implementations * Experience with cross-platform development and build systems (CMake, Makefile) * Bachelor's Degree in Computer Science, Software Engineering, or related technical field (or equivalent experience). Previous work supporting CNO / OC missions Clearance Requirements: * An active TS/SCI with Polygraph is required. * Must be a U.S. citizen. Physical Requirements: * Must be able to remain in a stationary position 50% of the time. * Needs to occasionally move about inside the office to access file cabinets and office machinery. * Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. * Must be able to exchange accurate information in these situations. ## Description * Develop custom cyberspace capabilities based on operational requirements and vulnerability research findings * Write, test, and maintain code for operational tools, exploits, post-exploitation frameworks, and automation systems, implementing operational security (OPSEC) controls in capability design including anti-analysis, evasion, and attribution management * Collaborate with vulnerability researchers to weaponize discovered vulnerabilities into operational capabilities and integrate capabilities with existing operational infrastructure, data pipelines, and deployment systems * Conduct unit testing, integration testing, and operational validation of developed capabilities and work with infrastructure developers to ensure capabilities deploy reliably across cloud and traditional environments * Refactor and maintain legacy capabilities to address target environment changes and operational feedback * Document capability functionality, usage, limitations, and OPSEC considerations for operators * Participate in operational readiness exercises and capability demonstrations ## Related Videos - [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) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Code to Road in < 12 hours](https://www.wearedevelopers.com/videos/1082-code-to-road-in-12-hours) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) ## Related Articles - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Why Attend a Developer Event in 2026?](https://www.wearedevelopers.com/magazine/688-why-attend-a-developer-event-in-2026) - [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) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [Dev Digest 191: Malware interviews, EU ❤️ Open Source and Skilled Agents](https://www.wearedevelopers.com/magazine/645-dev-digest-191-malware-interviews-eu-open-source-and-skilled-agents) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers)