Senior Software Developer

Leidos Holding$107K — $195K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Master's degree in Engineering, Computer Engineering, Computer Science, Information Technology, or Information Systems.
  • 10 years of professional experience in software engineering.
  • Proficiency in NoSQL/NewSQL data stores and Scala, Rust, TypeScript programming languages.
  • Experience with visualization technologies and user-interface development including HTML5, Javascript, CSS, and Angular or React.
  • Ability to apply programming concepts in professional or academic settings.
  • U.S. Citizenship with the ability to obtain a U.S. security clearance.

Responsibilities

  • Mentor a decentralized team of 5+ developers using agile methodologies.
  • Collaborate in an agile environment to design and deliver complex mission system software.
  • Own and deliver solutions using Java, Scala, React, and other modern technologies.
  • Explore and implement new frameworks and languages to meet mission needs.
  • Troubleshoot and resolve complex technical challenges creatively and efficiently.
  • Make informed decisions in dynamic, fast-paced environments with limited information.
  • Drive process improvements and enhance team performance through innovative workflows.

Benefits

  • Opportunities for professional development and continuous learning.
  • Collaboration with a high-performing team.
  • Hands-on experience with industry-leading technologies.
  • Impactful work directly contributing to national security.
  • Flexibility to adapt within a variety of roles and projects.
Full Job Description
In this role, based at a U.S. Government facility in Bethesda, MD, you will apply state-of-the-art technologies to develop advanced sonar tactical decision aids (TDAs) and related software capabilities that directly support the Fleet. You will be part of a high-performing team tackling complex technical challenges across data, simulation, visualization, and tactical decision support-helping shape the Navy's tactical edge and making a tangible impact on national security.

Primary Responsibilities.
  • Mentor a de-centralized team of 5+ developers, applying agile methodologies within a larger 50+ member program.
  • Collaborate in an agile environment to design, develop, and deliver complex mission system software.
  • Own and deliver solutions built with Java, Scala, React, and other modern technologies.
  • Explore and apply new frameworks and languages such as Angular, Rust, or Scala to meet evolving mission needs.
  • Troubleshoot and resolve complex technical challenges with creativity and efficiency.
  • Make informed decisions even with limited information in dynamic, fast-paced environments.
  • Recognize when to adapt or pivot during implementation to ensure the best technical and mission outcomes.
  • Drive process improvements and introduce innovative workflows that enhance team performance.
  • Influence positive change through collaboration, initiative, and technical leadership.
  • Balance multiple priorities and adapt quickly to urgent or shifting requirements.
  • Communicate clearly across teams, stakeholders, and leadership.
  • Apply agile best practices to deliver high-quality, iterative results that make an impact.


Travel occasionally to Manassas, VA for integration efforts and direct team collaboration.

Basic Qualifications.
  • Master's degree in Engineering, Computer Engineering, Computer Science, Information Technology, or Information Systems
  • Ten (10) years of professional experience with software engineering.
  • Experience with NoSQL/NewSQL data stores, the Scala, Rust, TypeScript programming languages.
  • Experience with visualization technologies and user-interface development, including HTML5/Javascript/CSS, CesiumJS, and associated toolsets such as Angular and React.
  • Experience with applying programming concepts in a professional or academic setting.
  • Clearance: Must be a US Citizen able to obtain a U.S. security clearance.

Desired Qualifications.
  • Experience building and supporting continuous integration pipelines (e.g. DEVOPS/DEVSECOPS) in a professional or academic setting.
  • Agile Developer certification or Certified Scrum Developer certification with experience participating in and helping to lead day-to-day activities of a scrum team or other Agile software development team.
  • Experience with Big Data processing technologies such as Cassandra, Kafka, Spark, etc.
  • Experience with Kubernetes, REST, Docker and containerized microservices.
  • Experience in development and integration of software in an environment including multiple security domains and system-of-systems.
  • Experience with commercially available cloud computing service solutions such as Amazon Web Services (AWS).
  • Experience in development and sustainment of Linux based software development.
  • Demonstrated open-source contributor.


Original Posting:
August 24, 2026


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.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

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Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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