Senior Java Developer - Military veterans preferred

ManTech (


  full-time   employee

United States

Secure our Nation, Ignite your Future


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 “big data” solutions to promote efficient trade and travel.  Further, effective “big data” solutions help CBP ensure the movement of people, capital, and products is legal, safe, and secure.  In response to this challenge, ManTech, as a trusted mission partner of CBP, seeks capable, qualified, and versatile Senior Java Developers to facilitate data-driven decision making in response to national security threats. 

Senior Java Developers will:  1) support the development of enterprise applications; 2) design and implement micro-services architectures; and 3) develop performance dashboards and artifacts to inform resource allocation, justify requirements, and support statutory reporting mandates.

The strongest applicants will have a proven track record of delivering production ready decision support tools and applications employed in the field and by mission-support entities.  Senior Java Developers play a key leadership role in multidisciplinary teams providing crucial insight on databases, modeling, business logic and object orientation, API, user interface and user experience. Developers must also model behaviors supporting the acquisition of new skills and enhanced understanding and fostering the same attitude in their colleagues in both technical and mission understanding. 

Within three to six months of joining the project, the Senior Java Developers will be expected to:

  • Lead and perform development and maintenance of end-user focused, object-oriented, data-driven analytic applications to support CBP threat analysis and targeting.
  • Independently identify technical solutions for business problems, directly contribute to conceptual design, and routinely collaborate with Enterprise/Application architects, Database Architects, Data Scientists, and mission stakeholders.
  • 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.
  • Demonstrate a strong practical understanding of industry standard Java Application Servers technologies such as WebLogic, WebSphere, TomcatEE and/or JBoss for application delivery.
  • Demonstrate a strong practical understanding of application-relevant cargo and passenger data and databases used to support analytic application development, functionality and targeting end user (officer) operation.
  • Actively participate in formal and informal design reviews, solution sessions, and project milestone meetings as well as contribute to project document artifacts for presentation to both technical and non-technical audiences.
  • Integrate with, and materially contribute to, project portfolio teams as a matrixed resource to provide development and issue resolution expertise in collaboration with data scientists, intelligence analysts, developers, and other participants at the direction of a project manager. 
  • Mentor junior developers and actively contribute to the development of a community of practice focused on enhancing technical skills, sharing best practices, and promoting enhanced mission domain knowledge.

Applicants should note that while some formal training exists to support building knowledge of missions and the implementation of data-driven solutions, much of the knowledge must be gained through on-the-job training and individual initiative.  Technical knowledge is insufficient to establish credibility in this operating environment; expertise must be enhanced with rapid acquisition of mission knowledge and demonstrated commitment positive mission outcomes; therefore, we seek self-starters who are capable of independent exploration and knowledge acquisition, willing to develop informal support networks, and with an appreciation for the immense challenge of safeguarding the Nation’s borders.


Education:  Bachelor’s degree in computer science or related field with 5+ years of technical experience

Required Experience

  • Demonstrated expertise in Java and Object-Oriented Design and development principles.
  • Experience with Java 8+ and the newer language features.
  • Experience with the Hadoop eco system, including HDFS, YARN, Hive, Pig, and batch-oriented and streaming distributed processing methods such as Spark, Kafka, or Storm
  • Experience with distributed data/computing tools such as Hadoop, Spark, Impala, etc.
  • Experience with one or more relational database systems such as Oracle, MySQL, Postgres, etc.
  • Experience with SQL.
  • Experience with one or more build tools such as Maven, Gradle, etc.
  • Software Configuration Management (SCM) using Git.
  • Comfortable with Linux.
  • High level of self-motivation, desire to deliver stellar solutions and willingness to work in a distributed team environment.
  • Ability to lead and mentor junior level developers.

Desired Knowledge and Experience

  • Experience delivering solutions using Amazon Web Services (AWS EC2, RDS, S3)
  • Experience with distributed search engines like Elasticsearch or Solr
  • NoSQL database systems such as Cassandra, MongoDB, DynamoDB, etc.
  • Familiarity with Atlassian tools such as Jira, BitBucket
  • Continuous integration with Jenkins or Bamboo.
  • Agile Scrum and possibly experience with leading a Scrum team as a scrum master or equivalent

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Waretime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

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