Staff Security Engineer - Production & Enterprise Security
LinkedIn · Mountain View, CA, United States
- Senior
- Full-time
- $156,000 – $255,000
- Posted 2026-10-07
- Confirmed live on 13 October 2026
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. The Production & Enterprise Security team strives to proactively safeguard our products, applications, cloud environments, and core engineering infrastructure by identifying, assessing, and mitigating security and privacy risks. We are dedicated to protecting our members by conducting security reviews, threat modeling, establishing secure software development lifecycle (SSDLC) controls, and building scalable automation to minimize potential risks across the company.
About the Role
As a Staff Security Engineer on the Production & Enterprise Security team, you will strengthen the security posture of LinkedIn's core products, cloud infrastructure, and development workflows — leading threat modeling, designing and implementing secure-by-default frameworks, executing architecture reviews, and building scalable tooling to detect and mitigate application and platform vulnerabilities across the company.
Responsibilities:
• Own and drive the secure software development lifecycle (SSDLC) and shift-left security controls across engineering platforms, including automated SAST/DAST scanning, software supply chain security, and CI/CD security guardrails.
• Architect and build secure-by-default frameworks, paved roads, and developer guardrails for cloud infrastructure, microservices, authentication/authorization services, and core application components.
• Build automation and security tooling that continuously identifies, reproduces, and mitigates application and cloud security vulnerabilities at scale; partner with Detection & Response on security logging, telemetry, and incident playbooks.
• Lead threat modeling, architectural design reviews, and risk assessments for complex engineering systems and platforms. Partner with security and engineering teams to embed secure design patterns and risk mitigations into developer tooling and production services.
• Define application and cloud security standards, reference architectures, and policies across product development, API design, data storage, and third-party integrations; drive secure adoption of cloud services and enterprise tools.
• Drive cross-functional architecture and engineering decisions across platform engineering, security engineering, ML/AI teams, and product/DevEx to build developer platforms, AI systems, and infrastructure that are scalable, reliable, and secure by design.
Qualifications
Basic Qualifications
• BA/BS Degree in Computer Science, Cybersecurity, Information Security, or related technical field, or equivalent technical experience.
• Hands-on experience or working knowledge of web/application security, cloud security risks, or secure development lifecycle practices.
• 5+ years experience in security engineering and in-depth knowledge of application security, authentication and security protocols, cryptography, or supply chain security.
• 5+ Experience in various security assessment methodologies such as threat modeling, design reviews, penetration testing and vulnerability assessment.
• Experience with programming languages such as Java, GoLang or Python.
• Experience architecting or implementing tooling that detects and mitigates security vulnerabilities.
Preferred Qualifications:
• BS and 8+ years of relevant work experience, MS and 7+ years of relevant work experience, or PhD and 4+ years of relevant work experience.
• 5+ years experience with programming languages such as Java, GoLang or Python.
• Experience securing cloud-native systems, containerized applications, microservice architectures, and modern CI/CD pipelines.
• Working knowledge of modern technology stacks: cloud platforms (Azure, AWS), identity federation (OAuth/OIDC), distributed systems, and SSDLC automation tools.
• Demonstrated ability to ramp up quickly on emerging threat vectors and technology stacks.
• Ability to work across teams and communicate concisely and clearly to stakeholders.
• Experience with security research, bug bounty or CTF competitions.
• In-depth expertise in assessing, architecting, and safeguarding AI platforms
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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