Full Stack Developer

What You'll Be Working On

The NISC IV program at Leidos is looking for a Full Stack Developer to build apps that actually scale and make sense. We're talking Power Apps, Appian, and solid data structures ; not just hacky fixes that break at 5:01.

You'll design and build applications using Power Apps and Appian. You'll work with other teams to gather requirements, build backend logic and APIs, and create data models that don't collapse under load. You'll implement data structures and algorithms to make things run faster. You'll integrate with other systems and enterprise databases. You'll write unit tests, participate in code reviews, and keep documentation clear. Basically, you'll build stuff right the first time.

What You Need to Bring

• A Bachelor's degree in Computer Science, Information Technology, or a related field with 8 to 12 years of experience. Or a Master's with 6 to 10 years.
• At least 3 years of full stack development under your belt.
• Real proficiency with Power Apps ; both Canvas and Model Driven apps.
• Experience developing workflows in Appian.
• A strong grasp of data structures, algorithms, and software design principles.
• Familiarity with JavaScript, C#, SQL, and RESTful APIs.
• You're a solid problem solver who pays attention to the details that matter.
• You can obtain and maintain an FAA Public Trust clearance.

What Would Make You Stand Out

• An Appian Certified Developer or Microsoft Power Platform certification.
• Experience with cloud platforms like Azure or AWS.
• Understanding of Agile and Scrum.
• Knowledge of security best practices in app development.

The Pay and Benefits

The pay range for this role is $107,900 to $195,050. Leidos considers a bunch of things when figuring out your actual offer ; the specific responsibilities, your education and experience, your skills, internal fairness, what the market says, and any applicable bargaining agreements.

Benefits include Health and Wellness programs, Income Protection, Paid Leave, and Retirement. You can get more details at leidos.com/careers/pay benefits.

This posting went up on April 16, 2026, and it'll stay open for at least 3 days.

A Quick Note About Scams

Leidos will never ask you to send money or payment info during the application process. They'll never send you a check or money order before you start working. All legit emails from Leidos come from the leidos.com system ; not Gmail, Yahoo, Hotmail, WhatsApp, or Telegram. If something feels off, email LeidosCareersFraud@leidos.com. If you think you've been scammed, contact local law enforcement and file a report with the U.S. Federal Trade Commission.

How to Apply

This is a full time position in Washington, DC. If you've got the experience and the drive, go ahead and apply through Leidos' careers page. Make sure your resume reflects everything listed above.