Core Java Software Engineer - TS/SCI with Polygraph

Description

The company supports an information technology enterprise and needs a Core Java software engineer to join the team.

The role is based on site in Chantilly, Virginia, at the customer location.

The company provides technology and professional services to U.S. government, defense and intelligence agencies, with about 26,000 staff across more than 50 countries, focused on AI, cloud, cyber and software development.

Responsibilities

• Analyze user needs and turn them into technical requirements.
• Write clean, maintainable code with clear documentation.
• Propose new products and improvements to existing interfaces.
• Keep up with changes and improvements in industry technology.

Requirements

• Expert-level Core Java, not Spring Boot.
• Working knowledge of Eclipse IDE v2026, Java 17 or later, and JVM, JRE and JDK concepts.
• Solid grasp of JavaScript, AJAX, jQuery, JSP, HTML5, CSS, JSON, XML, HTTP and HTTPS.
• Hands-on work with Apache Tomcat 11 or later, Tomcat connectors, MariaDB (MySQL) v10 or later, REST APIs, SSH, PKI, OpenSSL, PuTTY and Linux.
• Extensive experience with LDAP authentication and authorization, including custom LDAP solutions.
• Strong experience with SSH, PuTTY and custom SSH-based tools on Linux.
• Experience administering Linux systems and using command-line tools.
• Experience building Java REST APIs, securing API requests with application certificates, and designing for scale in user activity monitoring.
• Experience with JDBC, the DAO pattern, and MariaDB (MySQL) configuration, including custom database tools, scripts and connection pooling without a framework.
• Experience deploying applications on Tomcat, configuring Tomcat connectors and managing HTTPD (Apache HTTP Server).
• Experience with front-end and back-end development using JSP, AJAX, jQuery, JavaScript, HTML and CSS.
• Experience writing Jakarta Servlet API code, including lifecycle, request and response handling, and session management.
• Experience using the Java Base64 API, including its uses and limits.
• Knowledge of Java Cryptography Architecture (JCA) and its APIs.
• Knowledge of AES, RSA and ECC encryption and how to use them in Java.
• Experience with the Quartz Job Scheduling Library in Core Java.
• Experience with Git and GitHub for version control.
• Knowledge of PKI infrastructure, secure data transmission, and custom PKI-based tools.
• Knowledge of X.509 certificates, including parsing, validation and chaining.
• Experience generating, managing and storing key pairs with OpenSSL and RSA, and troubleshooting key pair and certificate issues.
• Strong problem-solving and analytical skills, attention to detail, and clear communication with technical and non-technical stakeholders.
• Desired, some experience: integrating Python into web applications.
• Desired, some experience: writing Confluence plugins.
• Desired, familiarity with Windows Active Directory Certificate Services (AD CS) for issuing and managing PKI certificates.
• 10+ years of related experience.

Conditions

Full-time, regular position of 40 scheduled hours per week.

Onsite only, at the customer site in Chantilly, VA.

Travel is required for less than 10% of the time.

Requires a current Top Secret/SCI clearance with polygraph.

U.S. citizenship is required.

The likely salary range is $158,855 to $214,921. This is not a guarantee. Pay is set by experience, geographic location and possibly contractual requirements, and may fall outside this range.

The hiring process includes an identity verification step using biometrics and AI, and you must be on camera during virtual interviews. Your photo may be taken for verification, and by proceeding you authorize use of your biometric data for identity and security purposes.

Equal opportunity employer, including individuals with disabilities and protected veterans.

Benefits

• 401(k) with company match, where you may contribute pre-tax and post-tax dollars up to IRS limits.
• Medical plans, some with Health Savings Accounts, plus dental and vision plans.
• Comprehensive health and wellness packages for US-based employees.
• Full flex work weeks where possible.
• Paid vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
• Short and long-term disability, life, accidental death and dismemberment, personal accident, critical illness, and business travel and accident insurance, provided or available.
• Internal mobility team to help you manage your career.
• Paid education and certifications.
• Work with current technology.