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# Software Engineer (Java 17 development)

- **Company:** Ardent Principles
- **Location:** Dulles, VA, United States
- **Experience:** Expert
- **Salary:** $130,000.0 - $260,000.0
- **Contract:** Permanent contract
- **Skills:** Secure Shell (SSH), Java (Programming Language), JavaScript (Programming Language), Active Directory, Application Programming Interfaces (APIs), Artificial Intelligence, Ajax (Programming Language), Apache HTTP Server, Apache Tomcat, Confluence, HTML5, Cascading Style Sheets (CSS), Command-Line Interface, Cyber Security, System Configuration, Quartz (Graphics Layer), Information Engineering, Data Security, Linux, File Systems, Eclipse (Software), Apache Hypertext Transfer Protocol Server, Java Development Kit, Java Database Connectivity, Java Virtual Machine (JVM), Java Servlet, JSON, Job Scheduling, JQuery, Javaserver Pages, Python (Programming Language), Lightweight Directory Access Protocols (LDAP), Linux System Administration, MariaDB, MySQL, OpenSSL, Performance Tuning, Public Key Infrastructure, X.509, PuTTY, RSA (Cryptosystem), Session Management, Software Deployment, Software Engineering, Web Applications, Extensible Markup Language (XML), Load Balancing, Spring-boot, Backend, Front End Software Development, Restful APIs, Software Version Control, Database Tools and Utilities
- **Published:** October 1, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9207721/software-engineer-java-17-development

## About the Role

We are seeking a Senior-Level Software Engineer with expert Core Java proficiency and deep command of enterprise-grade web, API, PKI, and Linux technologies. This role demands mastery of Java 17 or higher, Eclipse IDE, JVM/JRE/JDK internals, JSP, AJAX, jQuery, and front-end development, paired with extensive experience deploying and tuning applications on Apache Tomcat 11+ and configuring Tomcat connectors and HTTPD., Knowledge of Java Cryptography Architecture (JCA) and its APIs.
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Knowledge of encryption algorithms, such as AES, RSA and ECC and their usage in Java.
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Experience w/Quartz Job Scheduling Library using Core Java development.
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Experience w/ software version control tools (Git/GitHub) code repository;
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Knowledge of PKI infrastructure and secure data transmission, and custom PKI-based tools and applications
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Knowledge of X.509 certificate handling, including certificate parsing, certificate validation and certificate chaining.
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Experienced in generating, managing, and storing key pairs using OpenSSL, and RSA, troubleshooting PKI-related issues, including key pair and certificate problems.
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Strong problem-solving skills and analytical thinking, attention to detail, and excellent communication and collaboration skills with technical and non-technical stakeholders.
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Ability to analyze user needs to determine technical requirements.
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Ability to write clean, maintainable, and well-documented code.
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Shows initiative and offers ideas for new products and improvements to existing interfaces.
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Actively keeps apprised of industry technological enhancements and changes.

Highly Desired Qualifications

Other skills and demonstrated experiences that are highly desired but not mandatory to perform the work, include:
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Some experience integrating Python into web applications
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Some experience Writing Confluence plugins
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Familiar w/ Windows Active Directory Certificate Services (AD CS) - for issuing and managing key infrastructure (PKI) certificates.

## Description

In this challenging yet rewarding role, you are an integral part of what brings our Company's mission to life. You must have the following required skills, certifications and demonstrated experience in and/or with, Expert-level knowledge of Core Java (NOT Spring Boot), Eclipse IDE v2026, Java 17 or later, JVM, JRE, and JDK concepts, JavaScript, AJAX, jQuery, JSP, Apache Tomcat 11 or later, Tomcat connector, MariaDB (MySQL) v10 or latest, HTML5, CSS, JSON/XML HTTP, HTTPS, REST API, SSH, PKI, OpenSSL, Putty, Linux and LDAP.
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Extensive experience with LDAP authentication and authorization, and custom LDAP-based solutions
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Strong experience with SSH and Putty, and custom SSH-based tools and applications on Linux platform
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Linux system administration and command-line tools
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Java REST API development, and API secure requests using application certificates and scalability for user activity monitoring
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JDBC, DAO pattern and configuration using MariaDB (MySQL) and custom database tools and scripts - connection pooling without framework
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Deploying applications on Apache Tomcat, configuring Tomcat connectors, and managing HTTPD (Apache HTTP Server
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Front-end development w/ JSP, AJAX, jQuery, JavaScript, HTML and CSS design for web presence and back-end development;
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Writing Jakarta Servlet API, including servlet lifecycle, request and response handling, and session management.
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Java Base64 API, that encodes and decodes data, including its usage and limitations., We use cookies to ensure the basic functionalities of the website and to enhance your online experience. You can choose for each category to opt-in/out whenever you want. For more details relative to cookies and other sensitive data, please read the full privacy policy.

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