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Sr. Software Engineer
Sr. Software Engineer-December 2024
Tewksbury
Dec 18, 2025
ABOUT LEIDOS
Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, homeland security
501 - 1,000 employees
Consulting
VIEW COMPANY PROFILE >>
About Sr. Software Engineer

  Description

  Looking for an opportunity to make an impact?

  Unleash your potential at Leidos, where we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customer’s success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Leidos is a Fortune 500™ company aimed at embracing and solving some of the world’s most pressing challenges. Through science and technology, Leidos is making the world safer, healthier, and more efficient.

  Our Security Enterprise Solutions (SES) team at Leidos currently has an opening for a Sr. Software Engineer . 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.

  This position is based out of our Tewksbury, MA office and requires a hybrid schedule (50% onsite), local candidates only.

  As a Sr. Software Engineer 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.

  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

  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.

  What Sets You Apart:

  Requires BS degree and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience. May consider additional years of experience in lieu of a degree.

  Must have the ability to obtain a Public Trust clearance. (US citizenship required).

  Working knowledge of C++ and OOP/OOAD

  Understanding of data structures, algorithms, and software design solutions.

  Understanding of memory management, multicore processors, and distributed systems design.

  Requires expert knowledge of and ability to apply advanced technical principles, theories, and concepts.

  You Might Also Have:

  GPU Programming with CUDA and/or OpenGL.

  Graphics Design, GUI development.

  Experience with Qt 4 or above.

  Linux kernel development.

  Interfacing with hardware and real-time debugging.

  Good working knowledge of SQL.

  Working knowledge of Cybersecurity.

  Working knowledge of networking solutions.

  Experience with Scrum/Agile development methodologies.

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

  https://careers.leidos.com/pages/security-enterprise-solutions

  https://www.leidos.com/markets/aviation/security-detection

  Pay Range:

  Pay Range $101,400.00 - $183,300.00

  The Leidos pay range for this job level is a general guideline onlyand 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.

  Original Posting Date:

  01/18/2024

  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.

  REQNUMBER: R-00126907

  All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.

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