Secure our Nation, Ignite your Future

　　Your Growth, ManTech’s Promise, OUR Mission.  Continue to Secure the Future.

　　Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

　　The Principal Software Developer wil support the Sponsor in a cross-domain data transfer and system integration solution. Activities will be concentrated on all aspects of the product development life cycle that are consistent with creating, implementing, and supporting new features and product capabilities in Platform as a Service (PaaS) applications and improving data processing methods that ensure highest levels of information system security. The candidate will travel to customer sites within the continental US, if required; and will work with people to provide exemplary customer service in high-pressure situations.

　　Responsibilities include, but are not limited to:

　　Develop and maintain a working knowledge of the customer's requirements for the team product and a working knowledge of how the product functions in the larger ecosystem 

　　Develops and maintains a working knowledge of the required policies, procedures, and change management plan for the project. 

　　Develop and maintain a working knowledge of the technologies in use by the team product while exploring alternative implementations and solutions 

　　Create, implement, test, document, and support feature and product capabilities and data processing methods that ensure highest levels of information system security 

　　Collaborate with PO/SM, team leads, and team members to ensure product capabilities that meet or exceed customer requirements 

　　Perform maintenance on existing products. 

　　Basic Qualifications:

　　Bachelors and 7+ years of experience developing microservices using Java/Kotlin and Spring Boot 

　　Experience documenting program development and subsequent revisions, inserting comments in the coded instruction so others can understand the program. 

　　Experience with identifying complex problems and translating information to form solution options and implement strategies. 

　　Experience developing customized applications to run on a Linux-based system. 

　　Experience with virtualized computing, i.e. Virtual Machines, ESXi, Docker, etc. 

　　Experience developing software applications using relational databases (SQL/Postgres) and persistence abstractions such as JPA/Hibernate. 

　　Working knowledge of Object-Oriented design patterns and principles (such as SOLID, DRY, Composition-over-Inheritance, etc.) 

　　Working knowledge of Enterprise Integration Patterns (such as Messaging Gateway, Competing Consumers, Scatter-Gather, Claim-Check, etc.) 

　　Experience with distributed architectures and messaging systems (such as Kafka/RabbitMQ) 

　　Preferred Qualifications:

　　Experience containerizing and deploying applications using CI/CD tools such as (Git, Kubernetes etc.) and familiarity with service mesh technologies (i.e., RKE2, Istio, HELM) 

　　Hands on experience with Linux/Unix, shell scripting, Junit, and Maven a plus 

　　Experience with computer networking 

　　Experience with Agile project management principles and processes 

　　Security Clearance Requirement:

　　Active  TS/SCI  is required to start.Physical Requirements:

　　Remain in a stationary position 50%, capable of operating a computer and other office productivity machinery, and frequently communicate with co-workers, management, and customers

　　Working with Data

　　For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

　　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 Wartime 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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