Senior Full Stack Java Developer Engineer
Company: Nissint Technologies, LLC
Location: Hanover
Posted on: February 21, 2026
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Job Description:
Job Description Job Description Benefits: Company Funded HSA
Company Paid Health Insurance 10% employer 401k contribution with
no match required Company parties Flexible schedule Paid time off
At Nissint Technologies, you'll work on high-impact, cutting-edge
projects with a skilled team of developers, delivering custom
software solutions to the Intelligence Community. We offer a
flexible, supportive environment with competitive compensation,
professional growth opportunities, and a strong emphasis on
work-life balance, ensuring you can thrive both personally and
professionally. This job presents an exciting opportunity to
collaborate with a group of talented professionals dedicated to
providing critical infrastructure and advanced capabilities that
enable secure, mission-critical operations across multiple agencies
and domains. It encompasses a wide range of services designed to
ensure seamless communication, robust cybersecurity, and efficient
collaboration at various levels. Your role will be pivotal in
safeguarding sensitive information and maintaining operational
resilience against evolving cyber threats, and will focus on
cross-domain collaboration while fostering coordinated efforts to
protect national interests and execute intelligence missions
effectively. Responsibilities Design, develop, and implement new
features, interfaces, or code in Java based on user and customer
requirements. Address technical challenges and provide solutions
for existing Java components. Collaborate with senior team members
on projects and initiatives related to ICAM products under Zero
Trust architecture. Integrate front-end and back-end components to
build fully functional web-based applications using modern
technologies. Conduct testing, integration, and provide production
support for ICAM products. Modify repository schemas to enhance
backend functionality and support new data items. Respond to
customer inquiries and troubleshoot issues related to ICAM products
and services. Requirements 8 years of software development
experience Experience with Java software development Experienced
designing, developing, testing front-end User Interfaces (HTML,
JavaScript or TypeScript) Desired Skills Experienced with ReactJS
Experience with User Experience design to increase product
usability Knowledgeable compliance accessibility standards for
electronic and information technology as governed by Section 508 of
the Rehabilitation Act Experienced with designing, developing,
testing, integrating, and deploying Spring Boot applications
running in Docker containers Proficient with Git version control
and Maven build tools Experience with JSON and XML Experience with
Kubernetes Skilled at building robust, scalable, secure, and
high-performance applications Integration/Continuous Deployment
(CI/CD) pipelines Familiarity with various AWS services (S3, EC2,
ECR, etc.) Experienced with Oauth2/Open ID Connect development
standards Able to write unit test cases using Junit/Mock testing
frameworks PKI encryption and authentication Bash scripting
experience and Linux environments One or more of the following
certifications: AWS Professional/Specialty or Microsoft Azure
Certification Excellent oral and written communication skills able
to clearly communicate architecture and design concepts Ability to
write technical documentation including wiki sites, blogs, XML/HTML
Strong organizational and time management skills, including the
ability to multi-task and work independently with minimum
supervision to meet deadlines
Keywords: Nissint Technologies, LLC, Arlington , Senior Full Stack Java Developer Engineer, IT / Software / Systems , Hanover, Virginia
