Application Security Engineer - 14097

Woodland Hills, United States

In collaboration with development and architecture teams, the Application Security Engineer will define security controls in BlackLine’s software, identify and prioritize vulnerabilities in the application, databases, and related infrastructure components, provide resolution guidance to the development team, perform source code reviews, conduct application security tests, monitor security events and audit trails, and respond to incidents. This position will also be responsible for educating and mentoring developers on secure coding and application security best practices.


  • Identify risks and areas of exposure in applications developed and/or used by BlackLine.
  • Perform security reviews of source code, stored procedures, and server/service configurations.
  • Define and document application security requirements for BlackLine applications.
  • Oversee development of security components throughout all stages of the SDLC.
  • Perform manual and automated security testing of BlackLine applications.
  • Monitor application logs and audit trails.
  • Monitor industry trends and threat landscape and recommend necessary controls or countermeasures.
  • Educate developers on secure coding techniques and security best practices.
  • Participate in development of security policies, standards, and processes.
  • Participate in incident handling and perform application-related forensics activities.
  • Perform other duties as assigned.
  • Bachelor’s degree in Computer Science or related field
  • 2+ years of hands-on application security experience.
  • Hands-on development experience and thorough understanding of object-oriented programming, preferably Java, C#, ASP.NET.
  • Advanced knowledge of web application technologies, MVC, Ajax, XML, SOA, SSL, web-related protocols and services.
  • Intermediate knowledge of MS SQL. Basic knowledge of other commonly-used RDBMS.
  • Ability to identify security vulnerabilities from source code reviews and testing.
  • Knowledge of encryption technologies, secure communications, and secure credentials management.
  • Advanced experience with at least one scripting language (e.g.: Perl, Python).
  • Intermediate proficiency with C/C++ or Java. Experience with lower-level languages (Assembly), debug and reverse-engineering tools (IDA, etc.) is a plus.
  • Advanced knowledge of common application vulnerabilities, (e.g.: XSS, CSRF, SQL injection, cookie/header/encoding manipulation, input/output validation, session replay).
  • Intimate familiarity with web application testing tools (eg: Burp, Parox, Fiddler, Havij, netcat). Ability to write proof-of-concept exploits is a big plus.
  • Ability to define application security requirements and build secure web application solutions.
  • Advanced written and verbal communication skills including ability to present technical subjects to non-technical audiences.
  • Strong work ethic, attention to detail, and organizational skills.
  • Ability to multi-task and manage priorities in a fast-paced environment.
  • Ability to collaborate in a team and work independently.
  • Conceptual understanding of software development principles and SDLC models, Agile experience is a plus.
  • Intermediate proficiency with the Microsoft Office suite.
  • Windows and Linux operating systems knowledge at advanced user level.


Application Security Engineer - 14097

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