Showing page 1 of 40 (Total listings: 799)

Developer

ManTech International ✓ Verified
Direct Apply
Harmans, Anne Arundel County
Jul 1, 2026

ManTech, a leader in providing cutting-edge technology solutions for national security programs, is currently seeking a Senior Computer Network Operations (CNO) Developer with a deep understanding of cybersecurity and systems engineering. This role involves designing and implementing strategic solutions to protect national security information and infrastructure. The ideal candidate will leverage their expertise in development and reverse engineering to create robust, secure communications tool…

Junior CNO Software Reverse Engineer [$237k/yr] TS/SCI-FS Poly with Security Clearance

SYSTOLIC ✓ Verified
Direct Apply
Savage, Anne Arundel County
Jul 16, 2026

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Reverse engineer and debug software. • Identify and correct software defects. • Analyze software for vulnerabilities. • Utilize low-level programming, assembly language, C, C++, and Python. • Develop software for embedded systems. • Automate reverse engineering tasks. Qualifications & Compensation: • Degree: Technical bachelor's degree or equivalent experience • Years of experience: 5 y…

Senior Firmware Engineer

Bellatrix Systems LLC ✓ Verified
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Colorado, US
Jun 22, 2026

Client: Micron Rate: $60/ hr C2C Max Role: Senior Firmware Engineer Location: Longmont, CO Experience Level: 7-10 years of experience Job Details: Conducts analysis, designs, performs programming, debugs and modifies software. Troubleshoots code for firmware applications. Utilizes analog and digital hardware and software operating systems. Typically programs in machine language, assembly language and high level languages, (e.g., C, C++)

Senior CNO Software Engineer [$308k/year] TS/SCI FS-Poly with Security Clearance

SYSTOLIC ✓ Verified
Direct Apply
Savage, Anne Arundel County
May 25, 2026

Candidates must already possess an active Top Secret/SCI w. Full Scope Polygraph to be considered for this position. SYSTOLIC needs software engineers who are experienced with embedded system development for numerous contract positions. Key skillsets include: - Virtualization: Experience with configuring, administering, and developing in virtual environments like VMWare/ESXi, Open Stack, Open vSwitch, and QEMU. - Embedded Systems: Development experience on embedded platforms such as Linux, Unix…

Mainframe developer - W2 - Hybrid in Chandler, AZ (Posted by SAM)

Global Force USA ✓ Verified
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Sun Lakes, Maricopa County
Jul 24, 2026

Must have: z/os expert, mainframe, COBOL, and Unix Required Qualifications Experience configuring, maintaining, and supporting the z/OS operating system, including installation, maintenance, and management of PTFs, APARs, and USERMODs using SMP/E. Proficiency in developing system utilities, exits, and automation using REXX and Basic Assembly Language (BAL/Assembler). Experience administering z/OS UNIX System Services (USS), including file system management, scripting, and zFS configuration. Exp…

CNO Developer

Nightwing ✓ Verified
Direct Apply
Palm Bay, Brevard County
Jul 25, 2026

hackajob is collaborating with Nightwing to connect them with exceptional professionals for this role. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modern…

Senior CNO Developer/ Reverse Engineer

Nightwing ✓ Verified
Direct Apply
Palm Bay, Brevard County
Jul 25, 2026

hackajob is collaborating with Nightwing to connect them with exceptional professionals for this role. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modern…

Mainframe Assembler

Source Code Technologies LLC ✓ Verified
Direct Apply
Wilmington, New Castle County
Jul 22, 2026

Job Description: Design, coding, and testing: Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life Cycle (SDLC) and have a solid understanding of mainframe operating systems, such as z/OS. Debugging and troubleshooting: They perform debugging and troubleshooting of mainframe applications to ensure they function correctly and efficiently. Documentation:…

Mainframe Developer

Percient Inc. ✓ Verified
Direct Apply
Wilmington, New Castle County
Jul 24, 2026

Job Title: Mainframe Developer Location: Wilmington, DE Job Description: Design, coding, and testing: Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life Cycle (SDLC) and have a solid understanding of mainframe operating systems, such as z/OS. Debugging and troubleshooting: They perform debugging and troubleshooting of mainframe applications to ensure…

CNO Developer - 10% 401k - FS Poly with Security Clearance

Stanley Reid ✓ Verified
Direct Apply
Savage, Anne Arundel County
Jun 30, 2026

Founded in 2010 by a technical leader, our client fosters a unique blend of collaborative spirit and professional excellence in IT consulting. Their laid-back, supportive environment encourages continuous learning with certification bonuses and flexible schedules. They demonstrate their commitment to employee well-being with industry-leading salaries, comprehensive benefits (10% 401k match, fully-paid medical, 6 weeks PTO), and a strong focus on work-life balance. With a portfolio of over 30 co…

CNO Developer - 10% 401k - FS Poly with Security Clearance

Stanley Reid ✓ Verified
Direct Apply
Reston, Fairfax County
Jun 30, 2026

Founded in 2010 by a technical leader, our client fosters a unique blend of collaborative spirit and professional excellence in IT consulting. Their laid-back, supportive environment encourages continuous learning with certification bonuses and flexible schedules. They demonstrate their commitment to employee well-being with industry-leading salaries, comprehensive benefits (10% 401k match, fully-paid medical, 6 weeks PTO), and a strong focus on work-life balance. With a portfolio of over 30 co…

CNO Analyst/Programmer with Security Clearance

Set of X ✓ Verified
Direct Apply
Savage, Anne Arundel County
Jul 17, 2026

WE ARE HIRING OWNERS Set of X is led by industry veterans who see government contracting as a good community with plenty of opportunity to go around. With a shared desire to give back, grow the community, and do great work, the Set of X team is building an elite group of engineers with a strong sense of shared responsibility and ownership Because who you work with matters. ________________________________________________________________________ Are you a software engineer with a passion for cyb…

Vulnerability Researcher - Hybrid - TS/SCI with Security Clearance

SRC ✓ Verified
Direct Apply
Rosslyn, Arlington County
Jul 20, 2026

Our client has deep expertise in Vulnerability Research, CNO Development, Reverse Engineering, and Penetration Testing. They support the defense and intelligence communities along with commercial clients. Founded by engineers, they have their own fixed, firm contract, and they work out of their own space. They have strong salaries and team incentive bonuses, provide excellent benefits, and offer 6-10% annual raises. If you help bring in new work, you can be rewarded with a percentage of the rev…

Vulnerability Researcher - Hybrid - TS with Security Clearance

Our client ✓ Verified
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Crystal, Arlington County
Jun 30, 2026

Our client has deep expertise in Vulnerability Research, CNO Development, Reverse Engineering, and Penetration Testing. They support the defense and intelligence communities along with commercial clients. Founded by engineers, they have their own fixed, firm contract, and they work out of their own space. They have strong salaries and team incentive bonuses, provide excellent benefits, and offer 6-10% annual raises. If you help bring in new work, you can be rewarded with a percentage of the rev…

Vulnerability Researcher - Hybrid - CI Poly with Security Clearance

Our client ✓ Verified
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South, Arlington County
Jun 30, 2026

Our client has deep expertise in Vulnerability Research, CNO Development, Reverse Engineering, and Penetration Testing. They support the defense and intelligence communities along with commercial clients. Founded by engineers, they have their own fixed, firm contract, and they work out of their own space. They have strong salaries and team incentive bonuses, provide excellent benefits, and offer 6-10% annual raises. If you help bring in new work, you can be rewarded with a percentage of the rev…

Principal Vulnerability Researcher - Hybrid - TS/SCI with Security Clearance

SRC ✓ Verified
Direct Apply
State Farm, Arlington County
Jun 30, 2026

Our client has deep expertise in Vulnerability Research, CNO Development, Reverse Engineering, and Penetration Testing. They support the defense and intelligence communities along with commercial clients. Founded by engineers, they have their own fixed, firm contract, and they work out of their own space. They have strong salaries and team incentive bonuses, provide excellent benefits, and offer 6-10% annual raises. If you help bring in new work, you can be rewarded with a percentage of the rev…

Principal Vulnerability Researcher - Hybrid - TS with Security Clearance

SRC ✓ Verified
Direct Apply
Crystal, Arlington County
Jul 24, 2026

Our client has deep expertise in Vulnerability Research, CNO Development, Reverse Engineering, and Penetration Testing. They support the defense and intelligence communities along with commercial clients. Founded by engineers, they have their own fixed, firm contract, and they work out of their own space. They have strong salaries and team incentive bonuses, provide excellent benefits, and offer 6-10% annual raises. If you help bring in new work, you can be rewarded with a percentage of the rev…

Reverse Engineer III with Security Clearance

Black Eagle Defense ✓ Verified
Direct Apply
Fort Sam Houston, Bexar County
Jul 21, 2026

Job Description DUTIES As a successful candidate for the Reverse Engineer III role, you will perform technical analysis of malicious binaries through controlled execution and/or static analysis of assembly code, overcoming techniques designed to defeat analysis, in order to ascertain functionality, capability, call-backs, assist with attribution to adversary infrastructure, and identification of indicators of compromise. Provide information and documentation that enables malware detection, sign…

CNO Developer with Security Clearance

Nightwing ✓ Verified
Direct Apply
Palm Bay, Brevard County
Jul 15, 2026

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in t…

Software Engineer [$293k/yr] TS/SCI-FS Poly with Security Clearance

SYSTOLIC ✓ Verified
Direct Apply
Savage, Anne Arundel County
Jul 16, 2026

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Lead the development of expertise in iOS internal systems and architecture. • Focus on advanced software reverse engineering techniques for iOS platforms. • Drive in-depth analysis of complex software architectures and functionalities. Qualifications & Compensation: Degree: Technical bachelor's degree or equivalent experience Years of experience: 10 years Salary: $293k yearly compensati…

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