Senior Full Stack Developer

Mantech International Corporation-posted about 1 month ago

Full-time • Mid Level

Hybrid • Ashburn, VA

5,001-10,000 employees

Professional, Scientific, and Technical Services

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Transform the future of federal services with MANTECH! Join a vibrant, energetic team committed to enhancing national security and public services through innovative tech. Since 1968, we've partnered with Federal Civilian sectors to deliver impactful solutions. Engage in exciting projects in Digital Transformation, Cybersecurity, IT, Data Analytics and more. Ignite your career and drive change. Your journey starts now-innovate and excel with MANTECH! MANTECH seeks a motivated, career and customer oriented Senior Full Stack Developer SME to join our team in Ashburn, Virginia. This position is onsite two days a week. Each day U.S. Customs and Border Protection (CBP) oversees the massive flow of people, capital, and products that enter and depart the United States via air, land, sea, and cyberspace. The volume and complexity of both physical and virtual border crossings require the application of solutions to promote efficient trade and travel.

Lead and perform development and maintenance of end-user focused, object-oriented, data-driven analytic applications to support CBP threat analysis and targeting in an agile environment.
Design, develop, and implement scalable, high-performance and reliable applications and microservices using Java (including frameworks like Spring Boot, Jakarta etc.) for the backend and modern JavaScript frameworks (e.g. React, Angular, Vue.js) for the frontend.
Contribute to all phases of the software engineering lifecycle (SELC), including requirements gathering, architecture design, coding, testing, deployment, and maintenance.
Develop and consume RESTful APIs and ensure seamless integration between front-end and backend systems.
Develop new code, modify existing application code, conduct unit and system testing, and engage in rigorous documentation of developed and delivered application use cases, data flows, and functional operations.
Develop, manage, and optimize CI/CD pipelines (e.g. using Jenkins, Gitlab CI, Harness) for automated builds, testing, and deployments.
Demonstrate a strong practical understanding to integrate rapid deployment process of AI/ML services into application delivery framework for targeting.

HS Diploma/GED and 15-20 years or AS/AA and 13-18 years or BS/BA and 7-12 years or MS/MA/MBA and 5-9 years or PhD/Doctorate and 3-7 years
Proven expertise in Java development, including core Java concepts, object-oriented design principles/patterns and modern frameworks (e.g. Spring Boot, Spring Framework)
Hands on experience developing Micro Services architecture patterns including building and deploying containerized applications (Docker, Kubernetes).
Experience with messaging queues such as gRPC, RabbitMQ, Kafka
Hands-on experience setting up, configuring, and maintaining CI/CD pipelines for automated application delivery using Harness or Jenkins
Experience with RESTful API design and development
Solid communication and interpersonal skills, with the ability to collaborate effectively within a team.
Must be a US Citizen and able to obtain and maintain a U.S. Customs and Border Protection (CBP) suitability prior to starting this position.
Must be eligible to obtain and maintain a Top Secret clearance.

Experience with cloud platforms such as AWS and related cloud services (e.g. EC2, S3, Lambda, RDS, EKS)
Experience working with relational databases (e.g. Oracle, PostgreSQL) and/or NoSQL databases (e.g. MongoDB)
Hands on experience leveraging distributed data/computing tools including Hadoop, Spark, Impala, MySQL, Elasticsearch, Solr, etc.
Experience working in Agile/Scrum development methodology
Solid understanding of software development lifecycle

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