Senior Full Stack Developer

General information

Description & Requirements

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. 

Responsibilities include but are not limited to:

• 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.

Minimum Qualifications

• 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.

Preferred Qualifications

• 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

Clearance Requirements:

• 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.

Physical Requirements:

• Must be able to be in a stationary position more than 50% of the time.
• Must be able to communicate, converse, and exchange information with peers and senior personnel.
• Constantly operates a computer and other office productivity machinery, such as a computer.