C++ Software Engineer

Leidos' Security Enterprise Solutions (SES) operation is seeking a Software Engineer (C++) in Tewksbury, MA to join our cross-functional engineering team using cutting edge technology to develop truly novel solutions that make travel and trade safer, healthier, and more efficient on a global level.

We are currently seeking candidates local to the Tewksbury, MA area. This position offers a flexible hybrid work schedule, with the opportunity to telework two days per week. Additionally, enjoy a 9/80 work schedule-giving you every other Friday off!

As a Software Engineer (C++) on our diverse and collaborative team, you will work alongside our expert Scientists and Engineers, contributing to Leidos products with global impact on security detection. This isn't your run-of-the-mill software development - you'll be honing your engineering skills with embedded products, real-time programming, and object-oriented design, all with the support of a management team focused on your professional growth and advancement. Working under general supervision in a diverse team, your primary responsibility will be to develop, modify and troubleshoot multi-tiered distributed applications and systems. The duties and responsibilities may change from time to time without notice and include but are not limited to the duties described below.

Primary Responsibilities:

• Design, build, and maintain efficient, reusable, and reliable C++ code using good OOP/OOAD techniques for our systems.
• Optimize, identify bottlenecks, bugs, and devise solutions to problems including: Maintain code quality, revision control and organization, Analyze customer issues and identify and implement solutions, Participate and contribute within a defined software development process.
• Occasional travel to customer sites may be required. Travel may be domestic and international.
• Participate in the design, development, testing, troubleshooting, and debugging of software programs for enhancements and new software-intensive systems and products.
• Applies appropriate principles, standards, processes, procedures, and tools throughout the software development life cycle. Duties include software requirements analysis, analysis of hardware compatibility, development of software products and tools used for design, development and maintenance of infrastructure, and platforms.
• Develops solutions to complex technical issues and problems that impact multiple area or disciplines.
• Regularly employs ingenuity and creativity to develop new technical solutions and systems to achieve functional objectives.
• Communicates with internal team members across multiple areas and client team members.
• Works to influence project/team leaders regarding solution design, process and/or approaches.
• Requires knowledge of and ability to apply advanced technical principles, theories, and concepts.

Basic Qualifications:

• Bachelor's degree with 4+ years of relevant experience or Master's degree with 2+ years of relevant experience. Additional years of experience will be considered in lieu of a degree.
• Must have the ability to obtain a Public Trust clearance (ship required).
• Working knowledge of C++ and OOP/OOAD.
• Hands-on experience on Linux OS required for developing software applications.
• Hands on experience of build tools (make, cmake, red hat package manager, installs) required to create software applications.
• Graphics Design and GUI development: hands on experience on developing and debugging multithreaded C++ GUI and business logic based applications.
• Understanding data structures, algorithms, and software design solutions.
• Full understanding of 3D image rendering using GPU Programming with CUDA and/or OpenGL.
• Experience and a desire to mentor junior engineers.

Preferred Qualifications:

• Linux kernel development; interfacing with hardware and real-time debugging.
• Experience with Qt 4 or above.
• Experience with Boost.
• Experience with Python.
• Understanding of GTK.
• Working knowledge of SQL.
• Working knowledge of Cybersecurity.
• Working knowledge of networking solutions.
• Experience with Scrum/Agile development methodologies.
• Experience of creating KVM and VirtualBox VM's.

The Leidos Security Enterprise Solutions (SES) team has developed a suite of integrated solutions for aviation, ports, borders, and critical infrastructure customers around the world. We provide automated threat detection for weapons, narcotics, explosives, contraband, and undeclared goods, as well as nuclear and radioactive materials, by leveraging industry leading screening technologies, AI/ML capabilities and advanced biometric tools. We have more than 24,000 products deployed across 120 countries, including best-in-class security checkpoint and inspection systems for people, checked baggage and more.

Check out the links below to learn more about Security Enterprise Solutions (SES)



Original Posting:
May 6, 2025
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:
Pay Range $85,150.00 - $153,925.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.