Penetration Tester

Omnissa; Bengaluru; On-site; INR 1,400,000 - 2,600,000; Full time

Job summary

Omnissa is seeking an Application Security Engineer to strengthen security across Web, Mobile, and Thick Client platforms. You will lead threat modelling, secure code reviews, and automate security testing within CI/CD pipelines.

You will collaborate with product and engineering teams to embed secure development practices, triage vulnerabilities with incident response, and contribute to ongoing security improvements across all products.

Qualifications

• 2–8 years in Application/Product Securityrequired.
• Penetration testing with manual source code review mandatory.
• Expertise in Web, Mobile and Thick Client security testing.
• Threat modelling and secure design reviews.
• Manual code reviews across multiple languages/frameworks.
• Use and automation of security tools like Semgrep, SAST/DAST.
• Strong understanding of authentication, authorization, storage and cryptography.

Responsibilities

• Conduct manual and automated security testing of Web, Mobile (Android/iOS) and Thick Client apps.
• Perform secure code reviews using manual techniques and Semgrep, CI/CD integrated.
• Review features early in the development lifecycle and provide risk-based recommendations.
• Facilitate threat modelling and architecture reviews with product/engineering teams.
• Guide secure design patterns, attack surface reduction and defense-in-depth.
• Lead initiatives to improve overall product security posture.
• Define and implement scalable security controls and guardrails.
• Collaborate with Incident Response and Bug Bounty teams on issues.
• Perform root-cause analysis for high-severity bugs and remediation guidance.
• Coordinate with Product and engineering stakeholders to align security goals.

Skills

Experience in security domain (App/Sec

Penetration testing + manual code rev

Web, Mobile, Thick Client testing

Threat modelling & secure design

Manual code reviews across languages

Security tool automation (Semgrep, SCA

Security principles (auth, crypto)

Excellent security communication

Tools

Semgrep

SAST/DAST tools

Job description

Application Security Engineer plays a critical role in improving the overall security posture of our products and platforms. This role focuses on end-to-end security testing across Web, Mobile, and Thick Client applications, and partners closely with product and engineering teams to implement secure development practices. The candidate will lead initiatives related to threat modelling, secure code reviews, feature assessments, automation (e.g., Semgrep), and root cause analysis for high-impact vulnerabilities. This is an Individual contributor role that requires deep technical expertise, leadership in security initiatives, and a proactive mindset for process improvement.

Must have Skills : -

• 2 to 8 years of experience in the security domain, specifically in Application/Product Security.
• Penetration testing along with Manual source code review is mandatory
• Demonstrated expertise in: Web, Mobile, and Thick Client security testing.
• Threat modelling and secure design review.
• Manual code reviews across multiple languages and frameworks.
• Use and automation of security tools such as Semgrep, SAST/DAST tools, and custom scripts.
• Strong understanding of security principles including authentication, authorization, secure storage, and cryptographic best practices.
• Excellent communication skills, including the ability to present security issues and recommendations to technical and non-technical stakeholders.

Good to have skills : -

• Hands-on experience with CI/CD security automation, container security, and cloud environments (AWS/GCP/Azure).
• Certifications such as OSWE, OSCP, OSEP, GWAPT, GMOB, or equivalent.
• Experience working with bug bounty programs, VDPs, or vulnerability triage.
• Track record of contributions to the security community (e.g., blogs, talks, open-source tools, CVEs).

Key Responsibilities:-

Security Testing & Reviews

Conduct in-depth manual and automated security testing of Web, Mobile (Android/iOS), and Thick Client applications.

Perform secure code reviews using both manual techniques and tools like Semgrep, integrated into CI/CD pipelines.

Review product features for potential security issues early in the development lifecycle and provide risk-based recommendations.

Security Architecture & Threat Modelling

Facilitate threat modelling and architecture reviews with product and engineering teams.

Provide guidance on secure design patterns, attack surface reduction, and defense-in-depth strategies.

Process & Posture Improvement

Lead and drive initiatives to improve the overall security posture of products and development practices.

Define and implement scalable security controls and development guardrails.

Security Issue & Incident Collaboration

Work with Incident Response and Bug Bounty teams to evaluate researcher-submitted and customer-reported issues.

Conduct variant and root cause analysis for high-severity (P0/P1) bugs and provide long-term remediation guidance.

Stakeholder Management

Collaborate with Product BU leaders and engineering stakeholders to align on security goals and assist in their execution.

Act as a trusted security advisor to cross-functional teams across the organization.

What will you bring to Omnissa?

• Work closely with teams to create, update and maintain threat models
• Perform secure code reviews and manual application security testing across all our products
• Triage and validate externally reported issues against our products
• Provide guidance and education to developers
• Develop ways to help identify and prevent systematic issues