Java Software Engineer

Please do NOT apply if you do not have an active Poly clearance. Those without a Poly will not be considered.

Experience: 10+ years

Required skills:

• 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 with 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 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.

Desired skills:

• Some experience integrating Python into web applications.
• Familiar w/ Windows Active Directory Certificate Services (AD CS) – for issuing and managing key infrastructure (PKI) certificates.