Mobile App Developer

Mobile App DeveloperRMantras is looking for a Mobile App Developer to provide technical expertise on a mission-critical program whose purpose is to development, modernize, enhance, operate, and maintain services for DHS/CBP mission critical systems. Mobile App Developers requires a strong mix of communications skills and hands on technical trouble shooting to support application issues and application of 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 your judgment in determining and recommending the best designs based on customer business objectives, timelines and other 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.US Citizens ONLYClearance: DoD TS or DHS Full BIWork schedule: Hybrid, 2 times/week onsite.Work Location: Ashburn, VARequired Qualifications:BS/BA degree and 8+ years of prior relevant experience or master's with 6+ years of prior relevant experience; or 4 years of additional experience in lieu of degreeAt least 5 years experience with Mobile development (Android/iOS experience)Requires experience in both Front-end Mobile and Back-end RESTFUL API development.Requires experience in development of JAVA, Node JS applications.Requires experience in both NoSQL and SQL database's.Must have strong application testing discipline.Experience with Google's Flutter engine and Google's Dart language and similar Android/iOS framework.Excellent problem-solving skills.Creative thinkerProficiency and knowledge of the following: Postgres, Springboot, SQL, Kafka, MySQL, Struts, Hibernate, Java, JSF, Swing, JavaScript, Bootstrap, Angular/React is desired.Knowledge of software design patterns.Experience with an issue/problem tracking system (e.g., Jira)Proficiency with common Agile practices, service-oriented environments, and better development practicesExcellent written and verbal communication skillsExperience with DevOps frameworksU.S. CitizenMust be able to maintain and obtain a CBP Background Investigation prior to startDesired Qualifications:Active CBP BIExperience with CBPAWS ExperienceKnowledge of CI/CD pipelineWorked in Agile environmentOther mobile framework