Junior Software Engineer

Leidos Holding$69K — $125K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's Degree with 2+ years of applicable experience
  • Must be able to obtain and maintain a SECRET Clearance
  • Experience in Linux, C#, SCM, and Databases
  • Strong skills in Unit Tests, Code Reviews, and Documentation
  • Experience in Networking, Scripting, and DevOps practices

Responsibilities

  • Develop training software for Unmanned Aerial Systems simulation
  • Design and implement new features and fix bugs
  • Conduct peer reviews and write tests
  • Analyze new technologies and best practices
  • Collaborate with team members following Agile practices

Benefits

  • Engage in projects supporting defense, space, and cyber fields
  • Opportunities for professional growth in system-level and real-time development
  • Work in a team-oriented environment that values complex problem-solving
  • Access to advanced technologies and methodologies in software development
Full Job Description
Leidos Defense Systems is seeking a talented Software Engineer to develop high-performance applications and backend systems supporting advanced sensors and mission systems. This role is ideal for engineers who enjoy building performant software today while growing into broader system-level and real-time development over time. We have offices across the United States engaging in the defense, space, cyber and commercial fields, we provide responsive, cost-effective engineering, scientific and IT solutions.

Primary Responsibilities:

In this mission we develop training software solutions for our customers in the area of Unmanned Aerial Systems simulation. We use our skills to design and implement new features, fix bugs, perform peer reviews, write tests, analyze new technologies and best practices, and collaborate with other teammates. We develop solutions in C++, .NET, and C#. The team follows Agile software practices, shares a passion for solving complex problems, delivering exceptional software, improving software development processes, and exceeding customer expectations.

Basic Qualifications:
  • Bachelor's Degree with 2+ years of applicable experience.
  • Must be able to obtain and maintain a SECRET Clearance.


  • Experience in the following technologies:
    Linux
    C#
    SCM
    Databases
  • Experience in the following concepts:
    Units Tests
    Code Reviews
    Documentation/Writing Skills
    Communication
  • Networking
    Scripting
    DevOps/Continuous Integration Continuous Development
  • Preferred experience in the following technologies:
    Git SCM
    Podman/Docker in air-gapped environments
    Protobuf
    Postgres/SQL
    Kubernetes
    Helm
    OpenShift
  • Preferred experience in the following concepts:
    Containerization
    Asynchronous Developememt
    Distributed Systems
    API Design
    VM Management
    Experience managing databases within a cluster


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 14, 2026

Pay Range:
Pay Range $69,550.00 - $125,725.00

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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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

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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