Mobile Application Developer

Leidos; Ashburn (VA); On-site; USD 107,900 - 195,050; Full time

Job summary

Leidos’ Homeland Sector seeks a Mobile Application Developer to modernize, enhance, operate, and maintain services for DHS/CBP mission critical systems. The role requires hands‑on mobile development across Android and iOS, plus RESTful API development and Java/Node.js expertise. Based in Ashburn, VA, the candidate must work onsite 2 days per week and hold U.S.

citizenship with CBP background eligibility. Ideal candidates have 5+ years in mobile development, experience with Flutter/Dart or

Qualifications

• BS/BA degree with 10 years of relevant experience or Master’s with 8 years, or 4 years additional experience in lieu.
• At least 5 years of Mobile Application Development experience on Android and iOS.
• Experience in Front-end Mobile and Back-end RESTful API development.
• Experience with Java and Node.js.
• Experience with both NoSQL and SQL databases.
• Strong application testing discipline.
• Experience with Google’s Flutter engine and Dart language or a similar Android/iOS framework.
• Excellent problem‑solving skills and communication.
• Proficiency with PostgreSQL, Spring Boot, SQL, Kafka, MySQL, Hibernate, Java, JSF, Swing, JavaScript, Bootstrap, and Angular/React.
• Knowledge of software design patterns.
• Experience with Jira.
• Proficiency with Agile practices, SOA, and modern development practices.
• U.S. Citizen and able to obtain CBP background check.

Responsibilities

• Architect, design, build, deliver, and enhance highly available, scalable real‑time systems.
• Evaluate designs based on customer objectives, timelines, and resource constraints.
• Lead major deliverables through all SDLC phases including scope estimation, architecture, design, coding and unit testing.

Skills

Mobile app development

Android

iOS

RESTful API development

Java

Node.js

PostgreSQL

SQL

Flutter/Dart

Problem solving

Education

BS/BA in CS or related

Master’s degree

Tools

Jira

Spring Boot

Kafka

Hibernate

JSF

Swing

Angular/React

Bootstrap

MySQL

PostgreSQL

Job description

Overview

The Homeland Sector within Leidos is seeking a Mobile Application Developer to provide technical expertise on a mission‑critical program whose purpose is to develop, modernize, enhance, operate, and maintain services for DHS/CBP mission critical systems. Mobile developers will use strong communication skills and hands‑on technical troubleshooting to support application issues and implement preventative measures.

Responsibilities

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 your judgment in determining and recommending the best designs based on customer business objectives, timelines, and resource constraints. You will participate in and/or direct major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing.

Location

Candidate must be based in Ashburn, VA and available to work onsite 2 days per week.

Basic Qualifications

• BS/BA degree and 10 years of prior relevant experience or Master’s with 8 years of prior relevant experience; or 4 years of additional experience in lieu of degree
• At least 5 years of experience with Mobile Application Development, with both Android and iOS
• Experience in both Front‑end Mobile and Back‑end RESTful API development
• Experience in developing 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 or a similar Android/iOS framework
• Excellent problem‑solving skills and creative thinking
• Proficiency in Postgres, Spring Boot, SQL, Kafka, MySQL, Struts, Hibernate, Java, JSF, Swing, JavaScript, Bootstrap, and Angular/React is desired
• Knowledge of software design patterns
• Experience with an issue/problem tracking system such as Jira
• Proficiency with common Agile practices, service‑oriented environments, and modern development practices
• Excellent written and verbal communication skills
• Experience with DevOps frameworks
• U.S. Citizen
• Must be able to maintain and obtain a CBP Background Investigation prior to start

Preferred Qualifications

• Active CBP Background Investigation
• Experience with CBP
• AWS experience
• Knowledge of CI/CD pipeline
• Experience working in an Agile environment
• Other mobile framework experience

Pay Range

$107,900.00 – $195,050.00

Commitment to Non‑Discrimination

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.