Senior Software Engineer - Active Secret Clearance (C#/C++)
$95 - $120 per hourGeologics Corporation
Geologics Corporation is seeking a Principal Software Engineer to join their team in Tucson, AZ. The ideal candidate will possess at least 8 years of professional software engineering experience or 5 years with an advanced STEM degree and an active Secret Security Clearance. The role focuses on the design, development, and maintenance of software for weapon system products, working closely with engineering teams. This contract-to-hire position offers an hourly rate of $95 - $120, but does not include health benefits or paid PTO. Candidates must be US citizens and work onsite in Tucson, AZ. Interested applicants should send their resumes to Dee Smith at View email address on click.appcast.io. #J-18808-Ljbffr Geologics Corporation
$86.8k - $165.2k
...Requirements: Active and... ...issued security clearance is required prior... ...DoD Clearance: Secret Security Clearance... ...experience and renowned engineering expertise to... ...portfolio. The software team within TEE... .... The Senior Software... ...applications using C#, C++ in Microsoft Visual...Secret clearanceSeniorC#C++Temporary workWork experience placementInterim roleWork at officeRemote workFlexible hours- Job Details Principal Software Engineer with ACTIVE Secret Security Clearance - Tucson, AZ Posted: 6/30/2026 Job ID: 16261 Job Category: Engineering Position... ...object‑oriented software applications using C# and C++ in Microsoft Visual Studio on Windows OS Prioritize...Secret clearanceC#C++Contract workRelocation
$86.8k - $165.2k
Job Overview Senior Systems Engineer - Software-focused Responsible Systems Engineer... ...integration and test activities and participate in... ...active transferable DoD Secret security clearance required prior to the start... ...with MATLAB, C, C#, C++, Python Ability to perform...Secret clearanceSeniorC#C++Temporary workRelocation packageFlexible hours- ...Technical Solutions LLC is seeking a Software Engineer in Tucson, Arizona, focused on... ...requires hands-on experience with C# and C++ in a Windows environment, and the ability... ...in Microsoft Visual Studio. A 'Secret' security clearance is required. #J-18808-Ljbffr Legion...Secret clearanceSeniorC#C++
$132.4k - $251.6k
...Position: Software/Test Equipment Development Engineer – Tucson, AZ Role: Onsite What You... ...planning. Communicate with senior management on project... ...software applications using C++, C#, Java, Python, or... ...maintain a U.S. Government Secret security clearance. Preferred...Secret clearanceSeniorC#C++Temporary workFlexible hours- Position and Location Senior Mission Planning Engineer - Tucson, AZ -... ...citizenship and an active Secret U.S. government‑issued security clearance. Responsibilities Join... ...mission planning methods, software development, and... ..., and verification (C#, C++, Java). Experience developing...Secret clearanceSeniorC#C++
$68.9k - $131.1k
...Requirements: Active and transferable U... ...issued security clearance is required prior... ...DoD Clearance: Secret Security Clearance... ...experience and renowned engineering expertise to meet... ...state of the art software solutions with the... ...applications using C#, C++ in Microsoft...Secret clearanceC#C++Temporary workWork experience placementInternshipWork at officeRemote workRelocationFlexible hours$68.9k - $131.1k
...EHermansRd,BLDG801). Position: On-site software engineer in the Test Equipment Engineering (... ...Center at Raytheon. Security Clearance: Active Secret DoD clearance required before start... ...object-oriented software applications in C#, C++ using Microsoft Visual Studio on Windows...Secret clearanceC#C++Full timeTemporary workInternshipFlexible hours$86.8k - $165.2k
...Requirements: Active and... ...issued security clearance is required prior... ...DoD Clearance: Secret Security Clearance... ...experience and renowned engineering expertise to... ...looking for a Senior Mission... ...planning methods, software development, and... ...virtual machines, C#, C++, Java)....Secret clearanceSeniorC#C++Temporary workWork experience placementWork at officeLocal areaRemote workRelocationFlexible hours$86.8k - $165.2k
SwiftCruit is seeking a Senior Software Engineer with expertise in C# and C++. This position is located in Tucson, Arizona and requires collaboration in a multidiscipline... ...to obtain a U.S. Government issued security clearance. A competitive salary range of $86,800 - $165,200...SeniorC#C++$107.5k - $204.5k
...Status Requirements: Active and transferable U... ...issued security clearance is required prior... ...: Do D Clearance: Secret Security Clearance... ...experience and renowned engineering expertise to meet... ...programs as a Software-focused... ...Experience with Matlab, C, C#, C++, Python Ability to...Secret clearanceC#C++Temporary workWork experience placementInterim roleCurrently hiringWork at officeRemote workRelocation packageFlexible hours$86.8k - $165.2k
Senior Software Security Engineer Location: Tucson, AZ (On site) What You Will Do Provide world‑class... .... Develop applications using C/C++ on embedded platforms.... ...obtain and maintain an Interim Secret‑level U.S. security clearance prior to the start date. U.S. citizenship...Secret clearanceSeniorC++Interim roleFlexible hours$107.5k - $204.5k
Principal Systems Engineer - EO/IR or RF Signal Processing... ...position. Security clearance: U.S. citizenship required. Interim Secret clearance required prior... ...experience with the C++, C#, or Java programming languages... ...with hardware/software integration. Experience...Secret clearanceSeniorC#C++Temporary workInterim roleRelocation packageFlexible hours- ...United States | Posted on 05/13/2026 Senior Firmware Engineer Job Duration: Long Term Contract (... ...strong expertise in embedded C/C++ development, hardware-software integration, and automated... ...| Embedded Systems Architecture C#, Python, Hardware - Software Integration...SeniorC#C++Long term contract
- ...Technologies delivers advanced engineering, staffing, and mission... ...As part of the TEE software team , you'll design... ...applications using C# and C++ within Microsoft... ...hardware integration. Active and transferable U.S.... ...-issued security clearance required prior to start...SeniorC#C++Part time
- ...How It Works This is not an active job listing. By submitting your interest,... ...applications become available. About Software Engineering Roles at Danaher Are you... ...debugging code in languages such as C#, Java, Python, or C++ Participating on an Agile Scrum team...C#C++Remote jobInternship
$86.8k - $165.2k
Sr. Systems Engineer - EO/IR or RF Signal Processing Location: Tucson... ...citizenship and a valid DoD Secret clearance (Interim clearance required... ...‑oriented programming with C++, C#, or Java. Experience with... ...audiences. Experience with hardware/software integration and...Secret clearanceSeniorC#C++Temporary workInterim roleRelocation packageFlexible hours$132.4k - $251.6k
...Requirements: Active and... ...issued security clearance is required prior... ...DoD Clearance: Secret Security Clearance... ...than 100 years of engineering excellence, we... ...is seeking a Senior Electro-Optical... ...mechanical, and software disciplines to... ...MATLAB, Python, or C++ for data...Secret clearanceSeniorC++Temporary workWork experience placementInterim roleWork at officeRemote workRelocation packageFlexible hours- ...Corporation in Tucson, AZ is seeking a Senior Software Engineer to oversee the development of critical software programs, including C++, Python, and Next.js React. This... .... The ideal candidate will have an active TS/SCI Security Clearance, along with strong software design...SeniorC++
$68.9k - $131.1k
...Position: Systems Engineer II - Signal Processing... .... Security Clearance U.S. citizenship required. Active and transferable U.... ...maintain an Interim Secret clearance with the... ...programming experience with C++, C#, or Java.... ...Experience with hardware/software integration. Ability...Secret clearanceC#C++Temporary workInterim roleFlexible hours$68.9k - $131.1k
...Status Requirements: * Active and transferable U... ...issued security clearance is required prior... ...Clearance Type: * Secret - Current*Security... ...'re expanding our engineering organization... ...defense. At Raytheon's Software Engineering... ...Experience with C++, C, or other object...Secret clearanceC++Temporary workWork experience placementInterim roleWork at officeRemote workRelocationFlexible hours- Senior Software Developer Location: Tucson, Arizona, USA Salary:... ...environment with electrical engineers, mathematicians, and... ...engineering-related discipline. Active TS/SCI security clearance. US citizenship required... .... Highly proficient in C++ and Python for...SeniorC++Remote workRelocation
$86.8k - $165.2k
Senior Electro-Optical Integration & Test Engineer Location: Tucson, AZ. Role: Onsite. Security Clearance: U.S. Citizen required with Secret level clearance or interim clearance.... ...Support production activities including documentation... ...MATLAB, Python, or C++ for data analysis...Secret clearanceSeniorC++Temporary workInterim roleRelocation packageFlexible hours- Senior/Principal Systems Engineer, EO/IR Signal Processing - Secret Clearance Rocket Lab is an end-to-end space company... ...solar panels, flight software, star trackers, optical... ...discipline Active Secret/Top Secret clearance... ...MATLAB, Python, and C++ computer languages, including...Secret clearanceSeniorC++Permanent employmentLocal area
- Prattwhitney is seeking a Software Security Engineer in Tucson, AZ, to design and develop real-time missile software... ...of relevant experience, especially with C/C++. U.S. citizenship and eligibility for Secret security clearance are essential. The role offers a...Secret clearanceC++
- Prattwhitney is seeking an On-site Software Engineer for their Test Equipment Engineering team in Tucson, AZ. The role involves designing and... ...’s Degree in a STEM field, have strong programming skills in C++, C#, and knowledge of Windows Operating System. Benefits include...C#C++
- Prattwhitney is seeking a Software/Test Equipment Development Engineer in Tucson, AZ to lead the development of test... ...and communicate project status to senior management. The ideal candidate will... ...skills and proficiency with C++, C#, Java, and more. Benefits include competitive...SeniorC#C++
$68.9k - $131.1k
Prattwhitney is looking for a Software Engineer based in Tucson, Arizona. This role involves designing and integrating object-oriented software applications using C# and C++. Candidates should have at least 2 years of relevant experience and a Bachelor's degree in a related...C#C++- ED Wallach Search Group is seeking Software Developers with Top Secret clearances to work in Tucson, AZ. You will engage in R&D alongside other engineers to create custom digital signal processing... ...proficiency in languages such as C++ or Python. Expertise in Linux...Secret clearanceC++
$86.8k - $165.2k
...Status Requirements: Active and transferable U... ...issued security clearance is required prior... ...Type: DoD Clearance: Secret Security Clearance... ...and renowned engineering expertise to meet... ...Perform hardware and software Communication Architecture... ..., SIMULINK, C/C++, or equivalent...Secret clearanceSeniorC++Temporary workWork experience placementInterim roleWork at officeRemote workRelocation packageFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Engineer - Active Secret Clearance (C#/C++). Be the first to apply!
- senior cloud service delivery manager Tucson, AZ
- senior business analyst contract Tucson, AZ
- senior product design engineer Tucson, AZ
- senior software manager Tucson, AZ
- senior marketing account manager Tucson, AZ
- sr operations manager Tucson, AZ
- senior customer service manager Tucson, AZ
- senior strategic account manager Tucson, AZ
- senior software engineer Tucson, AZ
- senior application security Tucson, AZ



