Java Software Engineer (Core Java) - SME | TS/SCI w/ Poly
$175kFalls Technology
Active TS/SCI with Polygraph required. U.S. citizenship required.
Location: On-site in McLean, VA (Full-Time).
Write clean, secure Java without leaning on frameworks. You'll build server-side web applications with a focus on PKI and cryptography for a federal national-security mission.
What you'll do
- Develop web applications in Core Java 17+ with Jakarta Servlets and JSP
- - Write JDBC/DAO data access against MariaDB/MySQL without ORM frameworks
- - Run on Tomcat 11+ and Linux, with LDAP integration
- - Implement PKI/X.509, SSH, OpenSSL and Java cryptography (AES, RSA, ECC)
- - Build front ends with JavaScript, AJAX, jQuery, HTML5 and CSS
What you bring (required)
- Active TS/SCI with Polygraph
- - Core Java 17+ (not Spring Boot), Jakarta Servlets
- - JDBC/DAO without frameworks, Tomcat 11+
- - JavaScript, AJAX, jQuery, JSP, HTML5/CSS
- - REST, MariaDB/MySQL, Linux, LDAP
- - PKI/X.509, SSH, OpenSSL and Java cryptography
- - Quartz, Git and Eclipse
Nice to have
- Python web applications
- - Confluence plugin development
- - Windows AD Certificate Services
Why Falls
A 9% retirement contribution, 100% of family medical premiums paid, and 4 weeks of PTO. We're a small business that's been delivering since 2019, so your work is visible and your voice counts.
Falls Technology is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, national origin, disability, or protected veteran status.
- ...applications by applying engineering and technology... ...Application Developer SME - Technical Training,... ...CLEARANCE: Active TS/SCI clearance with poly US citizenship required... ...and Experience Java (JDK, J2EE, EJB, JDBC... ...Explore a career in software development at GDIT and...Suggested
$200k
...Active TS/SCI with Polygraph required. U.S. citizenship required. Location: On-site in McLean, VA (Full-Time). Turn massive, messy... ...pipelines ~- Develop supporting tools in Python, SQL, Java or C What you bring (required) ~ Active TS/SCI with...SuggestedFull time$150k
...Active TS/SCI with Polygraph required. U.S. citizenship required. Location: On-site in Chantilly, VA (Full-Time). Build the APIs... ...Build integrations over sockets, GraphQL and REST ~- Work with Java and Android (Kotlin, Dart/Flutter) components ~- Handle web...SuggestedFull time$235k
...Active TS/SCI with Polygraph required. U.S. citizenship required. Location: On-site... ...services ~- Develop application code in Java, Go or C# with React, Angular or Vue... ...~ Active TS/SCI with Polygraph ~- Software engineering background in Java, Go or C# ~- A modern...SuggestedFull time$150k
...Active TS/SCI with Polygraph required. U.S. citizenship required. Location: On-site in Chantilly, VA (Full-Time). Build the applications... ...analysts rely on every day. You'll work across the stack, from Java/Spring Boot services to Angular front ends, on an Agile team...SuggestedFull time$150k
...Active TS/SCI with Polygraph required. U.S. citizenship required. Location: On-site in McLean, VA (Full-Time). Build Salesforce... .... You'll extend Salesforce and single-page front ends backed by Java services and Oracle, shipping through a modern CI/CD pipeline on...Full time$89.6k - $204k
Application Developer (Entry Level to SME) TS/SCI with Poly REQUIRED Position... ..., writes, and tests basic software under direct supervision. They... ...like JavaScript, Python, or Java. • Testing & Debugging:... ...: Foundational knowledge of core programming principles, database...Work at officeLocal area$89.6k - $204k
Technical Writer (Entry Level to SME) TS/SCI with Poly REQUIRED Position... ...Interview subject matter experts (engineers/developers) to gather... ...including API documentation, software architecture guides, white... ...code (e.g., Python, Java, or C++). • Tool Mastery:...Work at officeLocal area- ...and security of our nation as a Software Developer at GDIT. You’ll... ...general language skillsets: Java (AOP, IOC) Javascript, React... ...Heavily use ETL concepts and engines to decouple solutions Creating... ...environments Clearance: Active TS/SCI with Polygraph Location: At...
$89.6k - $204k
Software Engineer (Entry Level to SME) TS/SCI with Poly REQUIRED Position Description CGI Federal has an exciting opportunity... ...major language (e.g., Python, Java, C++, or JavaScript). •... ...Technical Proficiency: Strong command of core programming languages (e.g.,...Work at officeLocal area$89.6k - $204k
Software/Web Developer (Entry Level to SME) TS/SCI with Poly REQUIRED Position Description CGI Federal has an exciting... ...review standards for the engineering team. • Mentorship & Culture:... ...HTML, CSS, JavaScript, Python, or Java). • Familiarity with version...Work at officeLocal area- ...Cloud Engineer Deliver simple solutions to... ...our team! The Cloud Software Engineer serves as... ...Subject Matter Expert (SME) in cloud-native... ...languages such as Python, Java, C++, or Ruby to... ...Hours: Contract core hours, 9am - 3pm... ...Security Clearance: TS/SCI with Polygraph US...Contract workWork experience placement
- ...Transform technology into opportunity as a Software Quality Assurance Specialist/... ...automated test scripts (Selenium or other). Java development skills to integrate testing... ...related field Security Clearance Level: TS/SCI + Poly. Location: Herndon, VA US...Flexible hours
- ...Java Full Stack Developer Job Location: Chantilly, VA (On-site 100%) Active TS/SCI security clearance. Need to have Current CI Poly or consent to Poly at a briefing. Job Description:... ...team-oriented Mid-to-Senior Software Engineer to join our dynamic development...Full timeFlexible hours
- ...TITLE: Principal Systems Engineer (API Gateway)... ...CLEARANCE REQUIRED: Active TS/SCI with CI Poly EMPLOYMENT TYPE:... ...environments. Working alongside software engineers, cloud... ...solutions using Java, Python, C#, or similar... ...centrally focused on our core value system: inclusion...Full timeRelocation package
- ...goal. Required Skills : ~5 years of Java development utilizing various libraries... ...RESTFul services. ~ Managing Software Development through Git and built using... ...) is also desired. Qualifications: TS/SCI + CI Poly _____________________________________...Temporary workLocal areaImmediate start
$143.5k - $310.7k
Senior Java Developer TS/SCI with Poly REQUIRED Position Description CGI Federal is seeking a Senior Java software engineer for an exciting opportunity within our Intel Community. Working... ...exciting new products and maintain core software platforms, which is a...Local area$175k
...Active TS/SCI with Polygraph required. U.S. citizenship required. Location: On-site in Chantilly, VA (Full-Time... ...flows ~- Design data structures, data models and software architecture ~- Build in Python, Java and C++ with PyTorch or TensorFlow ~- Build ETL pipelines...Full time$160k - $190k
...Active TS/SCI with Polygraph required. U.S. citizenship required. Location: On-site in Chantilly, VA (Full-Time). Mission software only works if it's tested like it matters. You'll own quality... ...in JavaScript (Python or Java also fine) - Experience on Agile...Full time- ...complex problems as a Cloud Engineer at GDIT. Here, you’ll... ...Experience in scripting using software languages such as Java and Python Identify, analyze... ..., VA Hours: Contract core hours, 9am - 3pm; rotational... ...Security Clearance: TS/SCI with Polygraph US Citizenship...Contract workWork experience placement
- ...complex problems as a Cloud DevOps Engineer at GDIT. Here, you’ll tailor... .... Strong scripting skills (Java, Python, Bash, Shell).... ...Herndon, VA Hours: Contract core hours, 9am - 3pm On Call Duty... ...required. Security Clearance: TS/SCI with Polygraph US...Contract workWork experience placement
- ...API/Java/Python Developer, SME TS Clearance Required CGI Federal has an exciting... ..., and maintenance of software applications and APIs using... ...with the system engineers and developers to ensure... ...ability to obtain and maintain SCI with CI Poly• Proficiency in Java and/...
$110.8k - $184.7k
...immediate opportunity for a Software Developer who is... ...excellent understanding of engineering processes supporting... ...and an active TS/SCI CI Poly clearance.Essential Duties... ...and efficient code in Java Utilize Gitlab, Gitlab... ...certifications. At SMX, one of our Core Values is to Invest in...Contract workWork experience placementH1bImmediate startMonday to Friday- ...Senior Principal Cyber Systems Engineer (DevOps Engineer) The... ...will integrate a variety of software components in a secure container... ...OCP. Only Candidates with a TS/SCI CI Poly Clearance will be considered... ...Programming Language, preferably Java • Experience with...
- ...Job Description Job Description API/Java/Python Developer Hybrid – Arlington, VA U.S. Citizenship and TS/SCI and CI poly required @Orchard is retained by a top... ...the design, development, and maintenance of software applications and APIs using Java and...Remote work
- ...Own the opportunity as a Software Developer and help ensure the... ...with Angular Experience with Java Willing to develop and implement... ...customer architecture/engineering board experience Experience... ...Security Clearance Level : TS/SCI w/ Polygraph Location: Customer...
$72.7k - $149.2k
Job Title: Front End Software Developer-TS/SCI with PolyJob Category: Information... ...technologies, such as Java, to support full-stack capabilities... ...Clearance (TS/SCI) with Poly Minimum of 5 years of... ...Computer Science, Software Engineering, or a related field or equivalent...Contract workWork experience placementWork at officeLocal areaFlexible hours3 days per week$127.5k - $245.5k
Deputy Program Manager, Technical TS/SCI with Poly REQUIRED Position Description CGI Federal... ...in using project management software and methodologies. Experience in the art... ...application development (preferably using Java or Python), writing SQL and/or Graph query...Work at officeLocal area- ...Hybrid/Herndon, VA Overview: We are seeking a cleared Java Developer with hands-on experience designing and developing... ...orchestration is a plus. Key Requirements: - Active TS/SCI or TS/SCI with CI Poly - Strong Java development experience - Strong OOP fundamentals...Full time
- ...Job Role: Java Software Engineer. Location: Herndon, VA Duration: Full time, Onsite Security Clearance: Active TS/SCI Requirements: - Experience in Java development - Proficiency in troubleshooting across multiple operating systems, including Linux and...Full time
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Java Software Engineer (Core Java) - SME | TS/SCI w/ Poly. Be the first to apply!
- java developer remote part time Virginia
- java software engineer Virginia
- entry level java developer remote Virginia
- java web developer Virginia
- java developer Virginia
- java spring developer Virginia
- remote junior java developer Virginia
- senior java full-stack developer Virginia
- java programming Virginia
- java production support Virginia



