Jr. Software Developer

Join Our Innovative Team at Leidos! Job Description: Jr Software Developer Ready to break away from the ordinary and dive into an extraordinary career? At Leidos' High Fidelity Simulation Business Area, we’re not just building systems—we’re revolutionizing the future of naval simulation, training, and analysis for the US Navy. Imagine being part of a team where your work directly redefines naval capabilities. That’s the Leidos experience. Why You’ll Love Working Here Forget the cookie-cutter corporate gig. Here, every day is a new adventure. You’ll be at the cutting edge, working with state-of-the-art tech to shape naval training systems like CIAT - Combined Integrated Air and Missile Defense (IAMD) and Anti-Submarine Warfare (ASW) Trainer. As a Software Engineer, you’ll develop real-time software on Linux using C++ and Java, diving deep into all phases of the development process, using the best available tools and modern architectures. Your Impact Your work won’t just sit on a shelf. It’ll be front and center, shaping the trajectory of naval operations. Plus, you’ll get the chance to travel to strategic locations like Pearl Harbor, San Diego, and Norfolk, immersing yourself in the real-world impact of your creations. We’re Looking for Innovators Like You Have an advanced degree or continuing education in computer science? Maybe you have a knack for advanced math or physics? Perfect. If you’re a whiz with cluster computing, signal processing, Kubernetes, numerical simulation, multi-threading, GPUs, data visualization, underwater acoustic modeling, or sonar systems, you’re exactly who we need. What’s in It for You? Stability & Growth: Join one of the longest-running Leidos contracts, spanning over 30 years. Enjoy extensive career mobility and professional growth. Flexibility: Early bird or night owl? Work the hours that suit you, whether starting at 5 am or wrapping up at 4 am. Impactful Work: Engage in meaningful projects with systems going into production within six months. Your work matters here. Overtime Compensation: Any hours worked beyond the standard 40-hour workweek are compensated at straight time rates. Required Education & Experience Education: B.S./B.A. in Computer Science or equivalent experience. Citizenship: U.S. Citizenship and eligibility for a U.S. Government granted security clearance. Interim Secret security clearance required for employment. Skills: 0+ years of C++ or Java software development, strong Linux tools/library knowledge, and a solid grasp of software engineering principles. Desired Experience Education: Advanced degree, continuing education in computer science, or advanced math/physics background. Skills: Experience in cluster computing, signal processing, Kubernetes, numerical simulation, multi-threading, GPUs, data visualization, underwater acoustic modeling, and sonar systems. Tools: Familiarity with Agile development, Atlassian products, and DevSecOps methods/tools (Gitlab, Conan, Jenkins, Docker). Join Us at Leidos Ready to make waves in your career? At Leidos, we don’t just offer jobs—we offer a chance to drive innovation and make a tangible difference. Be part of something bigger. Join Leidos and embark on a career that’s anything but traditional. 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: April 2, 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 $57,850.00 - $104,575.00 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 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 View email address on click.appcast.io. 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.