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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer SME - **Company:** Dezign Concepts LLC - **Location:** Dulles, VA, United States - **Salary:** $210,000.0 - **Contract:** Permanent contract - **Skills:** Secure Shell (SSH), Java (Programming Language), JavaScript (Programming Language), Active Directory, Application Programming Interfaces (APIs), Ajax (Programming Language), Apache HTTP Server, Apache Tomcat, Software Applications, Confluence, HTML5, Cascading Style Sheets (CSS), Command-Line Interface, Collaborative Software, Computer Programming, System Configuration, Quartz (Graphics Layer), Data Security, Data Stores, Data Visualization, Software Debugging, Linux, Eclipse (Software), Java Platform Enterprise Edition (J2EE), Apache Hypertext Transfer Protocol Server, Java Development Kit, Java Database Connectivity, Java Virtual Machine (JVM), Java Servlet, JSON, JQuery, Javaserver Pages, Python (Programming Language), Lightweight Directory Access Protocols (LDAP), Linux System Administration, MariaDB, MySQL, OpenSSL, Public Key Infrastructure, X.509, PuTTY, RSA (Cryptosystem), Session Management, Software Deployment, Software Requirements Analysis, System Testing, Systems Integration, Web Applications, Extensible Markup Language (XML), Data Processing, Enterprise Software Applications, Spring-boot, Backend, Information Technology, Operational Systems, Front End Software Development, Restful APIs, Software Version Control, Database Tools and Utilities - **Published:** September 25, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9192851/software-engineer-sme ## About the Role * Citizenship: Must Be a US Citizen * Existing Clearance Required: Active Top Secret SCI with Poly * 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. * Extensive experience with LDAP authentication and authorization, and custom LDAP-based solutions * Strong experience with SSH and Putty, and custom SSH-based tools and applications on Linux platform * Experience with Linux system administration and command-line tools * Experience w/ Java REST API development, and API secure requests using application certificates and scalability for user activity monitoring * Experienced w/ JDBC, DAO pattern and configuration using MariaDB (MySQL) and custom database tools and scripts - connection pooling without framework * Experience deploying applications on Apache Tomcat, configuring Tomcat connectors, and managing HTTPD (Apache HTTP Server) * Experience w/ front-end development w/ JSP, AJAX, jQuery, JavaScript, HTML and CSS design for web presence and back-end development; * Experienced writing Jakarta Servlet API, including servlet lifecycle, request and response handling, and session management. * Experience w/ Java Base64 API, that encodes and decodes data, including its usage and limitations. * Knowledge of Java Cryptography Architecture (JCA) and its APIs. * Knowledge of encryption algorithms, such as AES, RSA and ECC and their usage in Java. * Experience w/Quartz Job Scheduling Library using Core Java development. * Experience w/ software version control tools (Git/GitHub) code repository; * Knowledge of PKI infrastructure and secure data transmission, and custom PKI-based tools and applications * Knowledge of X.509 certificate handling, including certificate parsing, certificate validation and certificate chaining. * Experienced in generating, managing, and storing key pairs using OpenSSL, and RSA, troubleshooting PKI-related issues, including key pair and certificate problems. * Strong problem-solving skills and analytical thinking, attention to detail, and excellent communication and collaboration skills with technical and non-technical stakeholders. * Ability to analyze user needs to determine technical requirements. * Ability to write clean, maintainable, and well-documented code. * Shows initiative and offers ideas for new products and improvements to existing interfaces. * Actively keeps apprised of industry technological enhancements and changes. Optional Skills * Some experience integrating Python into web applications; * Some experience Writing Confluence plugins * Familiar w/ Windows Active Directory Certificate Services (AD CS) - for issuing and managing key infrastructure (PKI) certificates ## Description We are seeking support for an information technology program that supports a mission operations system responsible for securely processing, disseminating and storing data. Requires strong Java development (Java17 or later), Confluence, JAVA EE development experience or Jakarta; PKI SSL/TLS. No cloud experience required., * Design and develop tools that integrate with commercial applications. * Design and develop collaborative tools, data manipulation techniques, data visualization techniques, and directory services. * Provide operations and maintenance of operational systems. * Modify existing software to correct errors, allow it to adapt to new hardware or software, or to improve its performance. * Analyze user needs and software requirements to determine feasibility of design within time and cost restraints. * Consult with customers about software system design and maintenance. * Develop and direct software system testing and validation procedures, programming, and documentation. * Confer with systems analysts, engineers, programmers and others to obtain information on project limitations and capabilities, performance requirements and interfaces. * Compile and write documentation of program development and subsequent revisions, inserting comments in the coded instruction so others can understand the program. * Write, update, and maintain computer programs or software packages for receiving, transmitting, processing and storing mission data. * Consult with managerial, engineering, and technical personnel to clarify program requirements. * Identify complex problems and review related information to develop and evaluate options and implement new ones. * Test, debug, and refine the computer software to produce the required product. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Top 10 Java Libraries](https://www.wearedevelopers.com/magazine/364-top-10-java-libraries) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)