Senior Security Engineer - Enterprise & Third Party Risk Management

Job description

Job Description
At LinkedIn, our approach to flexible work is centered on trust and optimized for culture, connection, clarity, and the evolving needs of our business. The work location of this role is hybrid, meaning it will be performed both from home and from a LinkedIn office on select days, as determined by the business needs of the team.
This role will be hybrid in LinkedIn’s Mountain View office location.
About the team
LinkedIn's members entrust us with their information every day and we take their security seriously. Our core value of putting our members first powers all the decisions we make, including how we manage and protect the data of our members and customers. Information Security at LinkedIn is dedicated to protecting and securing business-critical member data and company assets. Our core mission is to empower LinkedIn to create a secure and thriving platform for every member of the global workforce.
LinkedIn’s Enterprise and Third Party Risk Management Security team is dedicated to protecting our data, systems, and global members by managing security and privacy risks throughout our internal and external ecosystem. We collaborate across the organization to evaluate the security maturity of our partners and suppliers, identifying systemic threats and providing the technical guidance necessary for the secure integration of external services. Our mission is to leverage security engineering, advanced risk analytics, and automation to provide continuous assurance and visibility throughout the third-party lifecycle and services within our corporate enterprise. We are committed to building scalable, high-impact solutions that mitigate vulnerabilities and ensure all external engagements align with LinkedIn’s rigorous security, privacy, and regulatory standards.
About the role:
As a Senior Security Engineer focused on the Enterprise & Third Party Risk Management team, you will strengthen LinkedIn's security posture by identifying and mitigating security risks introduced by third-party technologies, services, and integrations.
You will independently lead technical security assessments of complex and high-risk technologies, perform architecture and design reviews, threat model integrations, and partner with engineering/non engineering teams and technology providers to mitigate identified risks. You will also help evolve the methodologies, tooling, and security patterns used to assess third-party technologies at scale.
The ideal candidate balances technical proficiency with strong cross-functional communication and leadership skills. From a technical standpoint, this individual will possess deep subject-matter expertise in application, cloud infra, and enterprise security, along with the ability to convey complex risks to both engineering partners and non-technical stakeholders. Successful candidates will drive alignment across diverse perspectives, prioritize critical vulnerabilities, and guide teams toward resilient security solutions.
Responsibilities:

• Lead technical security assessments of complex third-party technologies, including SaaS, cloud services, APIs, AI/ML services, developer platforms, and infrastructure providers.

• Provide architectural guidance and security consultation to engineering and non engineering teams throughout the development lifecycle.

• Lead technical security assessments of complex and critical platforms, performing end-to-end evaluations that encompass architecture reviews, threat modeling, and penetration testing.

• Perform architecture reviews and threat modeling to identify trust boundaries, attack paths, data exposure, identity and privilege risks, and other security weaknesses.

• Evaluate security architecture and controls across application and cloud security, IAM, data protection, vulnerability management, secure development, incident response, and software supply chain.

• Analyze technical security evidence, identify material security gaps, and define appropriate remediation or compensating controls with internal teams and technology providers.

• Develop and deploy security tooling, automated workflows, and standardized processes to enhance operational efficacy and expand the organizational influence of the team.

• Provide clear technical risk assessments and recommendations that enable engineering and business stakeholders to make informed decisions about third-party technologies.

• Improve assessment methodologies, technical security requirements, automation, and reusable security patterns to increase the effectiveness and scalability of third-party security reviews.

• Architect and implement automated security tooling utilizing machine learning and GenAI technologies to optimize review processes, elevate vulnerability identification capabilities, and minimize operational overhead, including hands-on software development for security automation.

• Collaborate with engineering, business, and product teams to proactively enhance security posture t

Interview problems reported for LinkedIn

Reported by candidates and public write-ups, not by LinkedIn. Practise each one here:

• Maximum Subarray — Medium
• Valid Parentheses — Easy
• Number of Islands — Medium
• Maximum Product Subarray — Medium
• Minimum Window Substring — Hard
• Search in Rotated Sorted Array — Medium
• Lowest Common Ancestor of a Binary Search Tree — Medium
• Maximum Depth of Binary Tree — Easy
• Serialize and Deserialize Binary Tree — Hard
• Merge Intervals — Medium
• Two Sum — Easy
• Merge Two Sorted Lists — Easy
• Merge K Sorted Lists — Hard
• Binary Tree Level Order Traversal — Medium
• Insert Interval — Medium
• Product of Array Except Self — Medium
• House Robber — Medium
• Palindromic Substrings — Medium
• Graph Valid Tree — Medium
• Number of Connected Components in an Undirected Graph — Medium
• Longest Substring Without Repeating Characters — Medium
• Same Tree — Easy
• Reorder List — Medium
• Invert Binary Tree — Easy
• Combination Sum — Medium
• Course Schedule — Medium
• House Robber II — Medium
• Word Break — Medium
• Unique Paths — Medium
• Best Time to Buy and Sell Stock — Easy
• Longest Consecutive Sequence — Medium
• Find Minimum in Rotated Sorted Array — Medium
• Reverse Linked List — Easy
• Linked List Cycle — Easy
• Validate Binary Search Tree — Medium
• Kth Smallest Element in a BST — Medium
• Longest Palindromic Substring — Medium

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