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Application Security Consultant (Part-Time, Project-Based)

We are seeking an experienced Application Security Consultant to perform independent security assessments of complex web platforms, including white-box code reviews, penetration testing, and cloud security evaluations.
This role involves direct collaboration with client stakeholders and technical leads.

Responsibilities:

  • Conduct white-box application security audits (source code review)
  • Perform targeted penetration testing of APIs and authentication flows
  • Assess access control, IDOR risks, and business logic vulnerabilities
  • Evaluate secure handling of financial and personal data
  • Review cloud and infrastructure security posture (Azure preferred)
  • Provide structured risk-prioritized reports
  • Present findings and remediation guidance to technical and business stakeholders
  • Support follow-up validation after fixes

Required Experience:

  • 3+ years in application security or security architecture
  • Experience auditing SPA + REST API + relational database architectures
  • Strong knowledge of OWASP Top 10 and API security
  • Experience with token-based authentication and OAuth flows
  • Ability to independently trace request lifecycle and identify logic flaws
  • Experience reviewing systems processing sensitive financial or regulated data
  • Strong written and verbal communication skills in English

Nice-to-Have:

  • Experience in fintech / trading systems
  • Laravel, Vue.js, or similar stack familiarity
  • Azure security knowledge
  • Experience producing compliance-oriented documentation (SOC 2 / ISO 27001)
  • Security certifications (CISSP, OSCP, CEH, etc.)

Engagement:

  • Part-time, project-based
  • Remote
  • Direct collaboration with client and technical team
  • Potential for recurring audits across multiple projects

Olena Lifanova

Recruiter

Apply now!

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