Military Utility Sr Software Eng

Leidos LLC; Beavercreek (OH); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos' Defense Systems Kinetics Business Area is seeking a Sr Software Developer to join our team. In this position, the candidate will apply domain knowledge to integrated digital engineering for conceptual system development providing operational analysis and military utility assessments for our nation’s defense.

We are looking for an experienced C++ and Python Developer with 8+ years of experience in a similar position.

Qualifications

• 8+ years of software development experience with C++ and Python
• Proficiency in object-oriented programming, data structures, and algorithms with C++
• Strong understanding of memory management, multithreading, and concurrency in C++
• Experience with integrating C++ applications with back-end technologies or third-party libraries
• Familiarity with C++11/14/17/20 and STL
• Understanding of version control systems such as GIT
• Knowledge of performance optimization, profiling, and debugging tools for C++ is a plus
• Experience with security best practices in C++ development is preferred
• Excellent communication and collaboration skills, with a proven track record of effective teamwork
• Ability to travel on an as needed basis

Responsibilities

• Design, develop, and manage high-performance software applications using C++
• Design, develop, and manage software applications and transformations using Python
• Implement and optimize code for performance, security, and memory efficiency
• Write robust, efficient, and scalable C++ code for various applications, including real-time systems, embedded systems, and desktop software
• Monitor and optimize the performance and responsiveness of C++ applications across multiple platforms and environments
• Integrate third-party libraries, tools, and APIs into C++ applications for enhanced functionality
• Collaborate with developers, engineers, and stakeholders to ensure seamless integration of C++ applications with other systems and components
• Run unit, integration, and performance tests to ensure the stability and functionality of C++ applications
• Conduct code reviews and ensure adherence to coding standards, security protocols, and best practices in C++ development
• Participate in agile development processes and contribute to continuous improvement of C++ development workflows

Skills

C++

Python

Multithreading

Memory management

Algorithms

Git

OOP

Security practices

Agile

Code reviews

Education

Bachelor's degree in Computer Science or Engineering

Master's degree in Computer Science/Engineering

High School diploma with 12 years experience

Tools

Git

Job description

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. 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. Your greatest work is ahead! Leidos’ Defense Systems Kinetics Business Area is seeking a Sr Software Developer to join our team. In this position, the candidate will be expected to apply domain knowledge to integrated digital engineering for conceptual system development providing operational analysis and military utility assessments for our nation’s defense. We are looking for an experienced C++ and Python Developer with 8+ years of experience in a similar position. You will be responsible for designing and implementing high-performance, scalable software solutions using C++, and delivering robust applications while working closely with our team of developers and engineers.

Job Responsibilities

• Design, develop, and manage high-performance software applications using C++
• Design, develop, and manage software applications and transformations using Python
• Implement and optimize code for performance, security, and memory efficiency
• Write robust, efficient, and scalable C++ code for various applications, including real-time systems, embedded systems, and desktop software
• Monitor and optimize the performance and responsiveness of C++ applications across multiple platforms and environments
• Integrate third-party libraries, tools, and APIs into C++ applications for enhanced functionality
• Collaborate with developers, engineers, and stakeholders to ensure seamless integration of C++ applications with other systems and components
• Run unit, integration, and performance tests to ensure the stability and functionality of C++ applications
• Conduct code reviews and ensure adherence to coding standards, security protocols, and best practices in C++ development
• Participate in agile development processes and contribute to continuous improvement of C++ development workflows

Required Skills

• 8+ years of related work experience with software development using C++ and Python
• Proficiency in object-oriented programming, data structures, and algorithms with C++
• Strong understanding of memory management, multithreading, and concurrency in C++ applications
• Experience with integrating C++ applications with back-end technologies or third-party libraries
• Familiarity with C++ standards (C++11/14/17/20) and STL (Standard Template Library)
• Understanding of version control systems such as GIT
• Knowledge of performance optimization, profiling, and debugging tools for C++ is a plus
• Experience with security best practices in C++ development is preferred
• Excellent communication and collaboration skills, with a proven track record of effective teamwork
• Strong analytical and problem-solving skills, dedicated to delivering high-quality, efficient software solutions
• Ability to travel on an as needed basis

Requires a Bachelors degree in Computer Science, Engineering, or similar discipline and 8+ years’ experience, or a Master’s degree in Computer Science, Engineering, or similar discipline and 6+ years’ experience. In lieu of degree, a High School diploma is acceptable with 12 years minimum experience. Active Secret Clearance

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting: September 11, 2026 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 $107,900.00 - $195,050.00 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.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers.

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.