Epsilon · 2 days ago
Application Security Engineer
Chicago, IL
Full-time
Onsite
Mid Level
$71K/yr - $119K/yr
3+ years expEpsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. The Application Security Engineer will help ensure the secure delivery of software applications by implementing secure coding practices and conducting advanced security testing, while collaborating with development teams to integrate security throughout the development lifecycle.
AdvertisingDigital MediaEmailMarketingMobileSocial Media
Responsibilities
Perform code analysis of applications, manually and through application security testing solutions, to identify vulnerabilities
Provide context and rationalization for identified vulnerabilities
Review and recommend remediation actions for identified vulnerabilities
Support security architecture design reviews and threat modeling of our products
Improve the accessibility of security through automation, vulnerability exception processing, embedding secure practices within continuous integration pipelines, and other related activities
Build trust relationships with teams to effectively achieve security goals
Drive cross-disciplinary initiatives to improve the security of our engineering ecosystem and products
Contribute to relevant security standards, processes, and other formal documentation
Collaborate with teams to ensure understanding and compliance with relevant security policies, standards and best practices
Assist in onboarding new teams and applications to security platforms
Qualification
Required
Minimum of 3 years of experience in related fields
Direct experience in software development
Direct experience with at least one CI/CD platform
Direct experience with application testing (e.g., SAST, DAST, MAST, RAST, IAST)
Direct experience in application vulnerability management processes
Working knowledge of current software development methodologies
Working knowledge of OWASP Top 10 and CWE 25
Working knowledge of programming languages and scripting
Working knowledge of software design lifecycle
Working knowledge of web and app security stack (e.g., API security)
Working knowledge of cloud security concepts and technologies
Working knowledge of authentication and authorization flows in web applications
Basic understanding of threat modeling
Basic understanding of network security (e.g , WAF, Micro-segmentation)
Basic understanding of cryptography topics
Preferred
Strong collaboration
interpersonal, collaboration, written and verbal communication skills
Excellent problem solving, critical thinking skills
Ability to work independently and self-motivate
Benefits
Flexible time off (FTO)
15 paid holidays
Paid sick time
Parental/new child leave
Childcare & elder care assistance
Adoption assistance
Comprehensive health coverage
401(k)
Tuition assistance
Commuter benefits
Professional development
Employee recognition
Charitable donation matching
Health coaching and counseling
Company
Epsilon
Epsilon is an all-encompassing global marketing company, a leader in creating connections between people and brands.
5001-10000 employees
H1B Sponsorship
Epsilon has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (132)
2024 (128)
2023 (124)
2022 (201)
2021 (136)
2020 (137)
Funding
Current Stage
Late StageTotal Funding
unknown2019-04-15Acquired
Leadership Team
Myron Sojka
Chief Technology Officer
Lakshmana Gnanapragasam
Senior Vice President Strategy & Analytics
Recent News
Washington Technology
2025-12-19
Washington Technology
2025-12-09
2025-12-03
Company data provided by crunchbase