Mobile Application Developer

Zachary Piper Solutions is seeking a Mobile Application Developer to support a large-scale DHS contract located in Ashburn, VA through 100% on-site presence. The Mobile Application Developer will design, develop, and maintain secure mobile applications for Android and iOS platforms, implement RESTful APIs, and ensure compliance with CBP security standards for mission-critical traveler processing systems.

Responsibilities of the Mobile Application Developer include:

• Design, develop, and maintain mobile applications for Android and iOS platforms using Flutter and Dart
• Implement and integrate RESTful APIs for backend services supporting mobile applications.
• Develop and maintain applications using Java and Node.js for backend functionality
• Work with both SQL and NoSQL databases (Postgres, MySQL) to ensure efficient data storage and retrieval
• Apply strong application testing practices to ensure reliability and security
• Collaborate with cross-functional teams to deliver high-quality, secure mobile solutions
• Participate in Agile development processes and contribute to continuous improvement initiatives
• Troubleshoot and resolve issues promptly, ensuring minimal downtime and optimal performance

Qualifications of the Mobile Application Developer include:

• BS/BA degree and 8+ years of prior relevant experience, or Master’s degree with 6+ years of experience; or 4 years of additional experience in lieu of degree
• At least 5 years of experience in mobile development for Android and iOS platforms
• Flutter experience is a must, including proficiency with Google’s Dart language
• Experience in both front-end mobile development and back-end RESTful API development
• Proficiency in Java and Node.js application development
• Experience with SQL and NoSQL databases (Postgres, MySQL)
• Familiarity with frameworks and tools such as Spring Boot, Kafka, Hibernate, Angular/React (desired)
• Strong understanding of software design patterns and Agile methodologies
• Experience with issue tracking systems (e.g., Jira) and DevOps frameworks
• Excellent problem-solving skills and communication abilities
• U.S. Citizenship required
• Ability to obtain and maintain a CBP Background Investigation prior to start

Responsibilities of the Mobile Application Developer include:

• Salary Range: $100,000 - 120,000 **depending on experience**
• Benefits: Medical, Dental, Vision, 401k Plan, Holidays, PTO, sick leave as required by law

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