Junior Application Developer

Leidos•Washington, DC

About The Position

Leidos Homeland is seeking a highly motivated Junior Application Developer supporting Airports, Borders and Security FBI portfolio. The candidate will support our Facilities technical IT contract and be responsible for understanding customer needs to create applications. The ideal candidate will operate independently with limited supervision and can establish solid working relationships within the division, as well as our external Government customers. This position is on a future contract pending award announcement. You must be a US citizen with an active TS security clearance to be considered. Primary Responsibilities: Develop, test, and maintain web-based, mobile, or desktop applications according to business requirements. Collaborate with senior developers to design software solutions and implement new features. Write clean, efficient, and well-documented code following company standards and coding guidelines. Debug and resolve application issues, bugs, and performance bottlenecks. Participate in code reviews and learn modern software development practices and methodologies. Assist in documenting technical specifications, architecture, and process workflows. Work closely with cross-functional teams such as QA, design, and project management. Stay updated on emerging programming languages, tools, and technologies relevant to the company’s tech stack. Required Security Clearance: Active Top Secret. Basic Qualifications: Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field (or equivalent experience). Basic knowledge of one or more programming languages (e.g., Java, C#, Python, JavaScript, or similar). Understanding of web technologies (HTML, CSS, JavaScript, and basic frameworks like React or Angular). Familiarity with databases (SQL or NoSQL). Knowledge of version control systems such as Git. Strong problem-solving and analytical skills. Excellent communication and teamwork abilities. Eagerness to learn and adapt to new technologies. Preferred Qualifications: Internship or project experience developing software applications. Exposure to Agile/Scrum methodologies. Familiarity with cloud platforms (AWS, Azure, or Google Cloud). Understanding of REST APIs and backend development. Degree in IT related field preferred. Experience with SAFe and ITIL. Experience in communications, Agile, and DevSecOps; hardware/software fabrication; Cloud, platform system integration; and/or test and evaluation is a plus. 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: January 16, 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 a Fortune 500® innovation company rapidly addressing the world's most vexing challenges in national security and health. The company's global workforce of 47,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenue of approximately $15.4 billion for the fiscal year ended December 29, 2023. 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 [email protected]. 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.

Requirements

Active Top Secret.
Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field (or equivalent experience).
Basic knowledge of one or more programming languages (e.g., Java, C#, Python, JavaScript, or similar).
Understanding of web technologies (HTML, CSS, JavaScript, and basic frameworks like React or Angular).
Familiarity with databases (SQL or NoSQL).
Knowledge of version control systems such as Git.
Strong problem-solving and analytical skills.
Excellent communication and teamwork abilities.
Eagerness to learn and adapt to new technologies.

Nice To Haves

Internship or project experience developing software applications.
Exposure to Agile/Scrum methodologies.
Familiarity with cloud platforms (AWS, Azure, or Google Cloud).
Understanding of REST APIs and backend development.
Degree in IT related field preferred.
Experience with SAFe and ITIL.
Experience in communications, Agile, and DevSecOps; hardware/software fabrication; Cloud, platform system integration; and/or test and evaluation is a plus.

Responsibilities

Develop, test, and maintain web-based, mobile, or desktop applications according to business requirements.
Collaborate with senior developers to design software solutions and implement new features.
Write clean, efficient, and well-documented code following company standards and coding guidelines.
Debug and resolve application issues, bugs, and performance bottlenecks.
Participate in code reviews and learn modern software development practices and methodologies.
Assist in documenting technical specifications, architecture, and process workflows.
Work closely with cross-functional teams such as QA, design, and project management.
Stay updated on emerging programming languages, tools, and technologies relevant to the company’s tech stack.