Security Developer III (Contractor)

Full Stack Security Developer - IAM A leading technology and cybersecurity organization is seeking a Full Stack Security Developer to join its core Cybersecurity team in Philadelphia, PA on a contract basis. This role will focus on architecting, developing, and maintaining security-focused applications supporting Identity and Access Management (IAM), using technologies including Angular, Java 17, Spring Boot, Spring Security, Node.js, REST APIs, MySQL, MongoDB, and AWS. This is a hybrid opportunity requiring the candidate to work onsite 2-3 days per week. This is an opportunity to take a lead role in building security tools that operate at enterprise scale. The team manages multiple applications supporting the security organization and is looking for a developer who can do more than simply execute requirements-they want someone who can design solutions, bring new ideas to the table, lead technical efforts, mentor team members, and collaborate directly with stakeholders. You'll work across the full development lifecycle while helping the team continue its cloud-native journey and migrate applications to AWS. If you enjoy solving complex problems, working in a security-first environment, and having ownership over the solutions you build, this role offers strong opportunities to expand your full-stack, cloud, and cybersecurity expertise. Required Skills & Experience Full-stack software development experience with both front-end and back-end development Strong experience with Angular, preferably recent versions Strong Java 17 development experience Experience with Spring Boot and Spring Security Strong experience developing and integrating REST APIs Hands-on experience with AWS and cloud-native application development Experience with Node.js Experience working with MySQL and/or MongoDB Understanding of secure software development practices and security protocols Experience with security scanning, code reviews, static code analysis, and secure coding standards Understanding of software architecture and design through production deployment Experience with DevOps tools and automated application build/deployment processes Experience working in Agile development environments Strong communication and collaboration skills Desired Skills & Experience Experience developing applications within Identity and Access Management (IAM) environments Experience with enterprise-scale applications and web services Experience with cloud migration and modernizing applications for AWS Experience with Test Driven Development (TDD) and/or Behavior Driven Development (BDD) Experience with open-source frameworks Experience working in a cybersecurity-focused organization Ability to evaluate new technologies and recommend solutions Experience mentoring or coaching junior developers Bachelor's degree or equivalent experience in technology, software development, or security Ability to independently develop technical designs and propose innovative solutions What You Will Be Doing Tech Breakdown 30% Angular / Front-End Development 30% Java / Spring Boot / Back-End Development 15% REST APIs & Application Integration 10% AWS / Cloud Migration 10% MySQL / MongoDB 5% Security / DevOps / Automation Daily Responsibilities 60% Hands-On Development - Design, develop, test, secure, and maintain IAM applications and reusable security components across the full technology stack. 20% Technical Leadership & Design - Develop technical solutions, identify platform gaps, propose improvements, evaluate new technologies, and take ownership of development initiatives. 20% Team Collaboration - Participate in code reviews, mentor team members, collaborate with security and technology stakeholders, troubleshoot production issues, and help drive projects through successful delivery.