Demo

Application Security Developer

Open Systems Technologies
Iselin, NJ Full Time
POSTED ON 1/3/2026
AVAILABLE BEFORE 3/3/2026

A financial firm is looking for an
Application Security Developer (C# or Java)
to join their team in Iselin, NJ.

Compensation: $135-175k
Must have Security experience
Responsibilities

  • Design, develop, and maintain enterprise-grade applications using .NET, ASP.Net, Windows Services, and SQL Server
  • Participate, contribute, assimilate, and provide opinion on increasing the security focus on all stages of SDLC during any changes, enhancements and design being done to the applications
  • Optimize code for performance, scalability, and security
  • Identify, analyze, and resolve security vulnerabilities in Windows applications, Windows servers, and web applications; Apply security best practices in development and deployment processes
  • Work proactively, independently and with global teams to address project requirements
  • Integrate with existing systems and APIs while ensuring adherence to secure coding standards and best practices
  • Code and Test cases reviews and ensure code developed meets the requirements

Qualifications

  • 5 years of IT experience of which 3 years should be in Microsoft application development (web/backend services/desktop clients)
  • Excellent knowledge of Windows application architecture, server configurations, web server configuration
  • Hands on full-stack experience with Web Apps built on Asp.NET, .NET Core, MVC
  • Experience in a diverse set of web app development tools and technologies such as JavaScript , Typescript, HTML5, Bootstrap, Angular
  • Excellent database skills required; SQL Server/DB2 preferred
  • Excellent knowledge of DevSecOps process and remediating OWASP vulnerabilities
  • Working knowledge and experience on scripting languages like Python or Erlang is plus
  • Knowledge of Data Structures and Algorithms
  • Hands-on working experience with DAST/SAST tools like Mend/SonarQube etc is a plus
  • Knowledge/experience on CI/CD pipeline using Jenkins/Bamboo with Bitbucket/Git

Certifications

  • Professional certifications on Cloud - AWS is a plus
  • Any Security related certifications is a plus

Salary : $135,000 - $175,000

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