Application Security Engineer

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Details: Job Description

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Manisha Singh () for faster processing!

As a key member of our Internal Product Security Engineering team, you will lead penetration-testing engagements for high-scale web applications and APIs, validating security controls and uncovering exploitable weaknesses. In parallel, you will conduct structured threat-modeling workshops and security-design reviews for new features and services, managing each engagement from scoping to remediation follow-up in close partnership with engineering and cross-functional stakeholders.

The insights you provide will drive prompt fixes and shape the organization's long-term security roadmap.

• Pent ration Testing:
  Plan, execute, and document manual and tool-assisted tests for enterprise-scale web apps and REST/Graph
  
  QL/gRPC APIs.
• Demonstrate exploitation paths (auth / logic / data exposure) and develop proofs-of-concept.
• Retest remediations and deliver clear, prioritized reports.
• Threat Modeling & Security Design Review:
  Facilitate formal and informal Threat Modeling using STRIDE-like frameworks or Attack-Tree sessions for new or significantly modified services.
• Produce risk artefacts, recommend mitigations, and track closure of findings.
• Security Engineering & Advocacy:
  Champion secure-by-default patterns across the SDLC (least privilege, IaC hardening, SDL best practices).
• Contribute to internal security tooling and CI/CD guardrails.

• Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.
• 4+ years in product or application security engineering with hands-on web/API penetration-testing work.
• Expertise with a leading pentest platform (Burp Suite Pro, OWASP ZAP, Nuclei, etc.).
• Scripting/automation ability in Python, Go, or similar; quick at reading unfamiliar codebases.
• Practical experience with STRIDE or comparable threat-model frameworks.
• Familiarity with cloud-native environments (microservices, Kubernetes, serverless).
• Communication:
  Exceptional written and verbal skills for both technical and non-technical audiences.

• Offensive-security certifications (OSCP, OSWE, OSWA, BSCP).
• Secure-coding experience in languages such as Java, Node.js, C#, Python, or Rust.
• Experience in security controls for cloud platforms such as AWS, Azure, or Google Cloud.
• Open-source contributions, bug-bounty recognitions, or CTF placements.
• Exposure to mobile or desktop application security.
• Knowledge of or interest in AI security controls and testing.

• Maintains professionalism under pressure.
• Meticulous eye for detail.
• Self-driven and proactive.
• Thrives on complex challenges.
• Dependable, cooperative team player.

* Listed salary ranges may vary based on experience, qualifications, and local market. Also, some positions may include bonuses or other incentives*

The Stefanini Group is a global provider of offshore, onshore and near shore outsourcing, IT digital consulting, systems integration, application and strategic staffing services to Fortune 1000 enterprises around the world. Our presence is in Americas, Europe, Africa and Asia, and more than 400 clients across a broad spectrum of markets, including financial services, manufacturing, telecommunications, chemical services, technology, public sector, and utilities.

Stefanini is a CMM Level 5 IT consulting company with a global presence.

• Mid-Senior level

• Full-time

• Information Technology

• Business Consulting and Services

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