Principal Java Software Developer 20+yrs Cleared TS/SCI Polygraph Reqd
Nissint Technologies, LLC
Job Description
Job Description
This position requires an active TS/SCI clearance with Polygraph. Please do not apply if you do not already have such a clearance.
Principal Software Engineer
20+ Years of Experience
Bachelors Degree required, or +4 years to substitute
Job Description:
This position is part of a software engineering team responsible for developing new features and maintaining existing functionality for a full-stack application that supports an analysis-focused mission. The application is distributed across multiple nodes and leverages a microservice architecture to ensure scalability and resilience. The team works across the entire technology stack—from backend services built with Java and Spring Boot, to modern web interfaces developed in Angular. Day-to-day responsibilities include implementing RESTful APIs, integrating services, troubleshooting distributed system issues, and collaborating closely with mission analysts and other developers to deliver timely, reliable software capabilities. The work is dynamic and mission-critical, requiring regular coordination, continuous improvement, and adaptation to evolving requirements.
Required Skills:
Java
Spring / Spring Boot
REST API development
Web Development in Angular 14+, JavaScript, TypeScript
A thorough understanding of microservice architecture is a must
Desired Skills:
Artifactory
AWS Instances
AWS Route 53
Bash scripting
Confluence
docker-compose
Docker
Elastic search
Kibanna
Gitlab CI
Jira
Lambda (java)
Maven
MongoDB
RSocket
Reactor Project
Spring data
SSH
Nissint Technologies is a Woman-Owned Small Business (WOSB) founded in 2006, specializing in providing tailored technology solutions. Our leadership team, with backgrounds in the Intelligence Community, has assembled a group of elite developers with expertise in various areas, including Digital Signal Processing, Enterprise Applications, User Experience and Interfaces, Big Data and Cloud Analytics, and Cyber Capabilities.
Nissint's philosophy is to attract top talent by offering excellent compensation, rewarding work, and growth opportunities. We operate on four core principles: holistic expertise, collaborative learning, energetic advancement, and perpetual optimization
Company Description
Nissint Technologies is a Woman-Owned Small Business (WOSB) founded in 2006, specializing in providing tailored technology solutions. Our leadership team, with backgrounds in the Intelligence Community, has assembled a group of elite developers with expertise in various areas, including Digital Signal Processing, Enterprise Applications, User Experience and Interfaces, Big Data and Cloud Analytics, and Cyber Capabilities.\r\n\r\nNissint's philosophy is to attract top talent by offering excellent compensation, rewarding work, and growth opportunities. We operate on four core principles: holistic expertise, collaborative learning, energetic advancement, and perpetual optimization
- ...hiring multiple Top Secret SCI Cleared Fullscope Polygraph Software Developers, Software Engineers, and... ...candidates MUST HAVE a TS/SCI with Polygraph to be... ...experience in C, C++, Python, or JAVA Experience working in... ...level candidates to 300K+ for Principal Level Engineers....SuggestedFull time
- ...DevOps Engineer – TS/SCI with Full Scope Polygraph Location: Annapolis Junction, MD Work Arrangement... ...Install, configure, monitor, and maintain software and infrastructure. Manage network... ...maintenance and configuration Java/Spring Boot, particularly...SuggestedRemote work1 day per week
- ...DoD 8140 Information Assurance Workforce certification requirements (e.g. Security+ CE, etc.) Clearance: Active TS/SCI clearance with a favorable polygraph Experience engineering or administering MDM solutions within enterprise or DoW/IC environments Strong...Suggested
- ...system requirements into software specifications. Design and develop user interface... ...Required Skills: Active TS/SCI with Polygraph clearance. Bachelor's... ...Science or related field with 20 years of software... ...Strong expertise in Java and modern software engineering...Suggested
- ...Annapolis Junction, MD Category: Software Engineer (SWE) - Demonstrated experience with Java is required for these... ...Remote Type: No Clearance: TS/SCI w/ Polygraph Demonstrated in-depth... ...driven Development (BDD) pattern, developers are responsible for...SuggestedTemporary workWork experience placementImmediate startRemote work
- ...quality bar. Requirements: · TS/SCI Clearance with polygraph · Hands-on experience... ...Skills · Design, develop, and maintain comprehensive... ..., verify defects, provide clear reproduction steps, expected... ...members throughout the software development lifecycle ·...For contractorsRemote workFlexible hours
- ...An active Top Secret/SCI Clearance with a Full Scope Polygraph is required. This is a hybrid schedule with up... ...will work closely with system and software engineers to design, prototype, and... ...execute. • Evaluation & Reliability: Develop robust testing, evaluation, and...Full timeImmediate startRemote work2 days per week3 days per week
- ...Description An active Top Secret/SCI Clearance with a Full Scope Polygraph is required. This job is onsite... ...Installing and configuring complex software; Managing network servers and technology... ...maintenance and configuration Java / Spring Boot (troubleshooting...Immediate startRemote work1 day per week
- ...Description An active Top Secret/SCI Clearance with a Full Scope Polygraph is required. This job is 100% onsite... ...an immediate need for a Front-End Developer/508 Compliance Specialist to... ...Required technical skills include: Java 8+ Understanding, maintaining & troubleshooting...Immediate start
- ...SYSTEMS ENGINEER SR PRINCIPAL GDIT is your place... ...system architectures to develop system requirements specifications... ...TO SUCCEED: Active TS/SCI clearance and ability... ...obtain and maintain a polygraph Must meet DoD 8570... ...e. Python, JavaScript, Java, Perl, Ruby, C++, etc)...
- ...qualified IT, architectural, system, and software engineering personnel. Requires TS/SCI with Poly Clearance The Software Engineer develops, maintains, and enhances complex and... .../queries Required Skills: Kotlin, Java, Python REST APIs (FastAPI and Spring...Full timeFor contractorsLocal area
- ...Description Build Mission-Critical Software That Matters At General... ...for a Front End React Developer who enjoy solving complex... ...ReactJS, TypeScript, JavaScript, Java 25, Spring Frameworks... ...position requires an active TS/SCI with Polygraph Bachelor’s Degree in Computer...Relocation packageFlexible hours
- ...Key Responsibilities: Design, develop, and implement test plans, test cases,... ...Studio (VS Code), Cypress, Eclipse, and Java. Use GIT to push and pull automation... ...practices. Required Skills: ~ Active TS/SCI with Polygraph clearance. ~8 years of experience as...Full time
- ...Jessup, MD is seeking a junior level Software Engineer. The role requires a... ...include analyzing user requirements, developing code, API integration, and applying... ...Level II certification and an active TS/SCI with Full Scope Polygraph. This full-time position is on-site...Full time
- ...An active Top Secret/SCI Clearance with a Full Scope Polygraph is required. This job is... ...implementation of mission-critical software capabilities. Candidates... ..., systems engineers, developers, and the UX team to... ...development concepts (e.g., Java or JavaScript frameworks,...Full timeImmediate startRemote work1 day per week
$113.2k - $237.8k
Job Title: Software Engineer-TS/SCI with Poly Job Category: Engineering Time... ...to Start: TS/SCI with Polygraph Employee Type: Regular... ...the Enterprise initiative, develop capabilities to shift from... ...IAVA tracking Python Java Scala NiFi Ansible...Full timeContract workWork experience placementFlexible hoursShift work- ...management, stakeholder collaboration, and organizational leadership across multiple programs. U.S. citizenship and an active TS/SCI clearance with polygraph are required. Competitive benefits and opportunities for professional growth are offered. #J-18808-Ljbffr CTI MD
- ...Summary: Seeking Splunk Engineer with TS/SCI FSP for Onsite Assignment in Annapolis Junction... ...Secret/SCI clearance with a Full-Scope Polygraph and have at least 7 years of relevant... ...expert, focusing on using Splunk software to search, monitor, and analyze machine-...
$113.2k - $237.8k
Job Title: DevOps Engineer-TS/SCI with Poly Job Category: Engineering Time Type:... ...Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage... ...of the Secure the Enterprise initiative, develop capabilities to shift from the current manual...Full timeContract workWork experience placementFlexible hoursShift work- Intelligence Analyst Cyber Content Developer - TS/SCI Full Scope Polygraph Full-time We’re searching for Intelligence Analyst - Cyber Content Developer to support the client’s tactical and strategic approaches for mission and ways forward. Responsibilities Perform target...Full time
- ...threats. Job Description SOFTWARE ENGINEER Transform... ...mission. The Software Engineer develops, maintains, and enhances complex... ...● Security clearance level: TS/SCI w/Poly required ● US citizenship... ...languages (e.g., C, C++, C#, Java, and Python). ~ Dev Ops- Build...Contract work
- Omniscius Consulting is seeking a Mid-Level Software Developer to join a collaborative engineering team in Laurel, Maryland. You will support... ...JavaScript frameworks, and be comfortable in an Agile environment. A TS/SCI clearance is required for this role. #J-18808-Ljbffr...Full time
- ...Description An active Top Secret/SCI Clearance with a Full Scope Polygraph is required. This is a hybrid schedule... ...an immediate need for a Front-End Developer with a strong concentration in... ...a cross-functional Agile team of software developers, system engineers, and...Immediate startRemote work2 days per week3 days per week
$145k - $325k
...vulnerability researchers and software vulnerability analysts for... ...client. Senior, lead, and principal vulnerability research... .... citizens with an active TS/SCI with full-scope polygraph only. We cannot sponsor clearances... ...vulnerabilities and develop tools for computer network...Full timeFor contractorsWork at officeVisa sponsorshipRelocation package- ...Military expertise to every case. We are hiring a Principal Software Developer (Java, JavaScript, Docker) to work in the Ft. Meade, MD... ...change based on central MD client's needs. Required: TS/SCI with a Polygraph Description: Designs, develops, troubleshoots...Full timeLocal areaWork from homeFlexible hours
- Wyetech is seeking a Cloud Software Engineer 1 to design, develop, and deploy enterprise cloud-based solutions for federal customers in a mission-driven... ..., reliable software across cloud infrastructure. Active TS/SCI with poly is required along with a relevant technical...
$108k - $169.5k
...dedicated to recruiting, developing and empowering a... ...limited supervision; write clear technical approaches when... ...following: PHP .Net C# Java Node.js Python HTML CSS... ...and operating software on Linux (service configuration... ...response. Required Clearance: TS/SCI Required Qualifications...Temporary workWork experience placementWork at officeLocal areaRelocation$175k - $235k
...CTC Group is seeking Software Engineers , to develop, maintain, and... ...as Python, C++, or Java to build backend services... ...Requirements Active TS/SCI with polygraph security clearance... ...~ Twenty (20) years experience as... ...evolving capabilities. Our cleared employees bring decades...Full time$150k - $200k
...Description Job Description Cleared Front End Developer (Angular) Summary We have... ...with systems and software engineers and other UI developers... ...is implemented with Angular 20 and incorporates Pega Constellation... ...Security Clearance: TS/SCI w/Poly Desired Familiarity...For contractorsCurrently hiringLocal areaImmediate startFlexible hours$10k
...contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position. Required: Must have... ...certification Experience testing products written in Java or GoLang Experience testing in Linux, Unix, Windows,...Contract workTemporary workImmediate start
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Principal Java Software Developer 20+yrs Cleared TS/SCI Polygraph Reqd. Be the first to apply!
- principal software engineer Annapolis Junction, MD
- java spring developer Annapolis Junction, MD
- remote junior java developer Annapolis Junction, MD
- java developer remote part time Annapolis Junction, MD
- java software engineer Annapolis Junction, MD
- java web developer Annapolis Junction, MD
- java developer Annapolis Junction, MD
- principal Annapolis Junction, MD
- senior principal cloud computing engineer Annapolis Junction, MD
- principal cloud computing engineer Annapolis Junction, MD




