Mobile App Developer

Description The National Security Sector within Leidos is seeking a Mobile Application Developer to provide technical expertise on a mission-critical program aimed at developing, modernizing, enhancing, operating, and maintaining services for DHS/CBP mission-critical systems. The role requires a strong mix of communication skills and hands-on technical troubleshooting to support application issues and implement preventative measures. In this hands-on position, you will work collaboratively to architect, design, build, deliver, and enhance highly available, scalable, real-time systems. You will exercise judgment in determining and recommending the best designs based on customer business objectives, timelines, and resource constraints. You will participate in and/or lead major project deliverables through all stages of the software development lifecycle, including scope and work estimation, architecture and design, coding, and unit testing. The candidate should have expertise in Mobile App Development. This position REQUIRES the candidate to be in Ashburn, VA, 2 times a week Basic Qualifications: BS/BA degree with 12 years of relevant experience, or Master's with 10 years of relevant experience; or 4 years of additional experience in lieu of degree At least 5 years experience with Mobile Application Development, with experience on both Android & iOS Experience in front-end mobile and back-end RESTful API development Development experience with JAVA and Node.js applications Experience with both NoSQL and SQL databases Strong application testing discipline Experience with Google's Flutter engine and Dart language, and similar Android/iOS frameworks Excellent problem-solving skills Creative thinking Proficiency with Postgres, Spring Boot, SQL, Kafka, MySQL, Struts, Hibernate, Java, JSF, Swing, JavaScript, Bootstrap, Angular/React Knowledge of software design patterns Experience with issue/problem tracking systems like Jira Proficiency with Agile practices and service-oriented environments Excellent written and verbal communication skills Experience with DevOps frameworks U.S. Citizen Ability to obtain and maintain a CBP Background Investigation prior to start Preferred Qualifications: Active CBP BI Experience with CBP AWS experience Knowledge of CI/CD pipelines Experience working in Agile environments Experience with other mobile frameworks Come break things (in a good way). Then build them smarter. We're the tech company everyone calls when things get weird. We don't wear capes (they're a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for "how it's always been done." Original Posting: August 1, 2025 For U.S. Positions: While subject to change, Leidos expects this job to remain open for at least 3 days, with an anticipated close date no earlier than 3 days after the posting date. Pay Range: $126,100.00 - $227,950.00 The Leidos pay range is a general guideline only and not a guarantee of salary. Factors influencing offers include responsibilities, education, experience, skills, internal equity, market data, and applicable laws.

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