Java Software Engineer

Bespoke Technologies, Inc.; Dulles Town Center (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

Bespoke Technologies, Inc. is seeking a Java Software Engineer (Subject Matter Expert) to join our team in Dulles, VA.

The candidate will apply expert Java skills (Java 17+, core APIs, JDBC) to design, develop, and secure RESTful services, integrate with LDAP-based auth, and manage Tomcat deployments. Strong Linux and PKI expertise are essential for secure data transmission.

Qualifications

• 10+ years of experience required in Java development and related technologies.
• Expert-level knowledge of Core Java (not Spring Boot) and associated tooling (Eclipse IDE, Tomcat).
• Strong experience with LDAP authentication/authorization and PKI-based tooling.
• Proficient in Linux command line, server administration, and secure communications (SSH/OpenSSL).
• Experience with Java REST API development and secure requests using certificates.

Skills

Core Java

Java 17+

Eclipse IDE

JVM/JRE/JDK concepts

JavaScript

AJAX

jQuery

JSP

Apache Tomcat 11+

Tomcat connector

MariaDB/MySQL

HTML5

CSS

JSON/XML HTTP/HTTPS

REST API

SSH

PKI/OpenSSL

Putty

Linux

LDAP

JDBC/DAO pattern

Connection pooling (no framework)

Tomcat deployment/config

Front-end development (JSP/AJAX/JQuery

Servlet API/Jakarta

Base64 / Java security APIs

PKI infrastructure & cert handling

Git/GitHub

Tools

Git

Apache Tomcat

Eclipse

Job description

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

BT-463 - Java Software Engineer

Skill Level: Subject Matter Expert

Location: Dulles, VA

• 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

• 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 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 w/ front-end development w/ JSP, AJAX, jQuery, JavaScript, HTML and CSS design for web presence and back-end development.
• 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.
• Some experience writing Confluence plugins.
• Familiar w/ Windows Active Directory Certificate Services (AD CS) - for issuing and managing key infrastructure (PKI) certificates.