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Senior Security Engineer
Apple
Seattle, WA
In this role, you will be the primary security team point of contact for several large engineering efforts. You will work with engineering teams throughout their development lifecycle. You…
Added 3 mins ago
Principal Software Development Engineer (AI Innovation)
CVS Shared Services Resources LLC
Remote, United States
The Principal Software Development Engineer will drive innovative, enterprise-wide solution designs at the business unit level for highly complex, strategic initiatives. In this high-impact…
Added 4 mins ago
Cyber Systems Engineer – VAX/OpenVMS
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Aberdeen Proving Ground, MD
Support the Risk Management Framework (RMF) process, including security documentation, eMASS input, STIG analysis, vulnerability scans and POA&M tracking.
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Cyber Analytics Application Engineer
CACI International
Linthicum Heights, MD
Job Title: Cyber Analytics Application Engineer
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Cyber - AI Engineer - Manager - Consulting
EY
Annapolis, MD · Baltimore, MD
As a Cyber AI Engineer, you will work with client security and engineering teams to deploy AI workflows for threat investigation, detection engineering, vulnerability analysis, and…
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Information Systems Security Engineer
BOOZ, ALLEN & HAMILTON, INC.
Fort Meade, MD
…critical AI-enabled capabilities? As an Information Systems Security Engineer (ISSE), you will identify the security controls, assessment tools, and authorization strategies needed to…
Added 14 mins ago
Senior Security Engineer, Detection Engineering
NVIDIA USA
Remote, United States
NVIDIA Security is seeking a Senior Detection Engineer to join the Detection and Automation Engineering team. On this team, we build reliable detection coverage that helps responders…
Added 21 mins ago
Software Dev Engineer I - Security Platform
Twitch
Irvine, CA · San Francisco, CA
This role is ideal for an engineer who learns quickly, values operational excellence, and wants to see their work directly improve Twitch's security posture.
Added 21 mins ago
Software Dev Engineer I - Security Platform
Twitch
San Francisco, CA
This role is ideal for an engineer who learns quickly, values operational excellence, and wants to see their work directly improve Twitch's security posture.
Added 21 mins ago
Software Dev Engineer I - Security Platform
Twitch
Seattle, WA · San Francisco, CA
This role is ideal for an engineer who learns quickly, values operational excellence, and wants to see their work directly improve Twitch's security posture.
Added 38 mins ago
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Product Security Engineer
Superhuman
Remote, United States
- $227,000 to $310,000 USD / year
…faster. We ship AI features and agents at a pace that makes security one of the most interesting problems in the building, and we're looking for a Product Security Engineer to help us solve…
Added 38 mins ago
Security and Compliance Engineer | Top Secret clearance w/SCI eligibility
AMERICAN SYSTEMS
Arlington, VA
AMERICAN SYSTEMS, a 100% employee-owned government contractor, is seeking a Security and Compliance Engineer to join our Mission Engineering and Integration Team in Arlington, Virginia.
Added 40 mins ago
Systems Engineer DevOps Support| TS/SCI w/ MD POLY Security Clearance required
Power3 Solutions
Hanover, MD
Exposure to security scanning, vulnerability management, software bills of materials, artifact signing, container registries, or software supply chain practices.
Added 1 hour ago
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Principal Network Security Defense Engineer - CALEA
Verizon Business Ntwk Srvs LLC
Ashburn, VA · Southlake, TX · Cary, NC · Branchburg, NJ
- $120,500 to $231,000 USD / year
The GN&T Network Security team is looking for a highly motivated and experienced Principal Engineer to be a technical leader in the Security Defense organization. The Defense teams are…
Added 1 hour ago
Senior Systems Engineer (I.S.)
Sumitomo Electric Wiring Systems, Inc.
Farmington Hills, MI
Security incident response, CSIRT activities, vulnerability remediation, and security audits.
Added 1 hour ago
ECM Platform Engineer
MS ACSC Management Services Inc
Coppell, TX
Perform regular vulnerability assessments, coordinate with security teams, and remediate findings across FileNet, ICN, WebSphere, JAVA, and supporting infrastructure.
Added 1 hour ago
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Senior Core Infrastructure Engineer
Oracle
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- $79,200 to $209,500 USD / year
The engineer will help deliver reliable platforms that enable controlled information sharing between networks operating at different security levels. The ideal candidate has broad systems…
Added 1 hour ago
Sr. Application Security Engineer
Esri
Remote, United States
…innovative and technology-oriented environment. As an Application Security Engineer at Esri, you will fill a critical role in helping secure Esri's intellectual property and sensitive data…
Added 1 hour ago
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Senior/Staff Infrastructure & Security Engineer
CivilGrid
Boston, MA
- $137,318 to $192,960 USD / year
We're looking for a Security & Infrastructure Engineer to own our security posture and assist in supporting our cloud platform and reliability as we scale into large utilities and civil…
Added 1 hour ago
Senior Site Reliability Engineer
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Louisville, KY
Integrate security into CI/CD pipelines through automated scanning, policy validation, and vulnerability management.
Added 1 hour ago
Cyber Systems Engineer – Vulnerability Management
Arcfield
Springfield, VA
The program provides Systems Engineering and Technical Assistance (SETA) support in the areas of Cyber Security and Management to improve the Information Assurance (IA) posture of a…
Added 1 hour ago
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Systems and Infrastructure Engineer III (Vulnerability Management)
Walmart
BENTONVILLE, AR
- $80,000 to $155,000 USD / year
The Systems and Infrastructure Engineer III maintains and improves the systems that keep Walmart’s Mac and Windows devices and managed applications patched and secure. This role uses…
Added 1 hour ago
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Staff, Systems and Infrastructure Engineer (Vulnerability Management) | Bentonville, Arkansas
Walmart
BENTONVILLE, AR
- $90,000 to $180,000 USD / year
As a Staff Systems and Infrastructure Engineer on APEX Vulnerability Management, you will be the team’s technical lead for keeping the technology Walmart associates use secure. You will…
Added 1 hour ago
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Sr. IT Support Engineer
iSoftStone
Bellevue, WA
- $48 to $60 USD / hour
Support security incident response, vulnerability remediation, and compliance with corporate IT security policies.
Added 1 hour ago
Security Engineer, Field Innovation, Security Search and Observability (SSO)
Amazon Development Center U.S., Inc.
Austin, TX · Arlington, VA · Santa Clara, CA
We are hiring a Security Engineer to work at the intersection of customer impact and AI. Our team builds and operates the detection, correlation, and vulnerability-management capabilities…

Lambda

Senior Product Security Engineer

San Francisco, CA, United States
Bellevue, WA, United States

$296,000 to $395,000 USD / year

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Job details

Pay: $296,000 to $395,000 USD / year
Posting language: English
Posted: Nov 4, 2026

Original job description

Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda's mission is to make compute as ubiquitous as electricity and give everyone the power of superintelligence. One person, one GPU.

If you'd like to build the world's best AI cloud, join us.

*Note: This position requires presence in our San Francisco or Bellevue office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.

About the Role

Lambda Security protects some of the world's most valuable digital assets: training data, model weights representing immense computational investments, and the sensitive inputs required to leverage best-of-breed AI models. We're responsible for securing every byte that powers breakthrough artificial intelligence.

As a Senior Security Engineer on Product Security, you'll make sure the right security decisions get made in everything Lambda sells, from the network and cluster infrastructure in our data centers to the software our customers use every day. Reporting to the Senior Manager of Security, you'll join a team spanning infrastructure security and application security, owning security outcomes for your area and partnering closely with Product Engineering, Data Center Operations and Engineering, Detection & Response, and GRC.

Product security at Lambda generates and protects revenue. Enterprises and AI labs evaluate our security before they move billion-dollar training runs and irreplaceable model weights onto our infrastructure, and this team supplies the answers. As Lambda launches new products and expands into new data centers, you'll threat model and review the designs behind each one, keep every customer's workloads isolated from the network fabric up, run vulnerability management as a risk-driven program, and bring technical depth to the customer security reviews behind enterprise deals. You'll work with direct access to LLMs hosted on Lambda's own infrastructure, alongside frontier models and AI tools, to take code and design review further than traditional approaches allow.

Product security covers a lot of ground, and we don't expect one person to be an expert in all of it. Some of our team go deep on infrastructure: networks, clusters, Linux and the hardware underneath. Others go deep on application security and code. We expect you to bring real depth in one and contribute across both. If you'd rather build security into systems alongside the engineers who own them than audit them from the outside, we'd love to talk.

We value diverse backgrounds, experiences, and skills, and we are excited to hear from candidates who can bring unique perspectives to our team. If you do not exactly meet this description but believe you may be a good fit, please still apply and help us understand your readiness for this role. Your application is not a waste of our time.

What You'll Do

Review Designs and Threat Model: Own security design reviews and threat models for the systems in your area, delivering actionable recommendations while changes are still cheap.
Secure Multi-Tenant Infrastructure: Harden the network, cluster, and infrastructure-service layers that keep each customer's workloads isolated from every other customer's.
Find and Fix Vulnerabilities in Code: Review application code and infrastructure as code, find vulnerabilities through analysis and testing, and land fixes with the owning team.
Run Vulnerability Management as a Program: Turn scanner output into accurate, prioritized facts about real risk, and drive remediation to SLA alongside our Technical Program Managers.
Develop Security Patterns and Requirements: Turn recurring review findings into requirements, reference patterns, and guardrails that the teams you support adopt by default.
Enable Enterprise Deals: Partner with GRC on customer security reviews and architecture discussions, giving customers clear, technically grounded answers about how we protect their workloads.
Build Security Tooling: Ship Python or Go automation, using Lambda-hosted LLMs, frontier models, and AI tools, that extends review and triage coverage.
Partner Across Engineering: Work with Product Engineering, Data Center Operations and Engineering, and Detection & Response, including on bug bounty and vulnerability disclosure reports.
Coach Engineers: Help engineers in the teams you support build secure design instincts, and mentor newer members of the security team.
Balance Strategic and Tactical: Recognize when to invest in a long-term fix versus when "good enough" is exactly that, and bias toward measurable forward progress.

You

5+ years of demonstrated security engineering experience, either directly as a security engineer or as a software, infrastructure, or site reliability engineer driving security outcomes. We also welcome equivalent backgrounds: significant formal security training paired with strong engineering experience.
Demonstrated depth in infrastructure security or application security, with design reviews, threat models, or fixes that engineering teams actually adopted.
A track record of independently owning security work end to end, making sound calls on your own and knowing when to escalate.
Thrives in high-speed, high-ambiguity startup environments where priorities shift regularly and structure must be built while executing.
Strong hands-on Linux experience in both bare metal and cloud environments, understanding infrastructure from kernel to application layer.
Reads application code and infrastructure as code (e.g., Terraform, Ansible, Kubernetes manifests) fluently enough to explain a vulnerability's root cause, not just a scanner's verdict.
Ships production-grade tooling in Python, Go, or a similar language, rather than only one-off scripts.
Translates security risk into business impact for engineers, leadership, and customers, enabling them to make informed decisions.
Excellent collaboration with technical teams both with and without authority (we're all on the same team!).

Nice to Have

Deep code analysis expertise, such as source code auditing, fuzzing, reverse engineering, or vulnerability research with published findings or CVEs.
Experience securing multi-tenant infrastructure: network segmentation, virtualization or container isolation, Kubernetes, or hardware root of trust and secure boot.
You've led the security assessment and requirements for a major platform component or enterprise system.
Experience building infrastructure-as-code security guardrails, such as policy-as-code checks in CI/CD or secure-by-default modules.
You've run vulnerability management as a program, with risk-based prioritization and remediation SLAs that held.
Experience supporting enterprise customer security reviews, or providing significant evidence for compliance audits such as SOC 2, ISO 27001, or FedRAMP.
Experience with AI/ML infrastructure security, model security, or protecting high-value computational workloads.
Significant experience operating large-scale production services (e.g., SRE across thousands of hosts) or with virtualization at scale (KVM, Hyper-V, Xen).
Enthusiasm about leveraging LLMs on Lambda's own infrastructure, frontier models, and AI tools to push product security beyond the status quo, including through AI-assisted code review, automated threat modeling, and intelligent vulnerability triage.

Salary Range Information

The annual salary range for this position has been set based on market data and other factors. However, a salary higher or lower than this range may be appropriate for a candidate whose qualifications differ meaningfully from those listed in the job description.

About Lambda

Founded in 2012, with 500+ employees, and growing fast
Our investors notably include TWG Global, US Innovative Technology Fund (USIT), Andra Capital, SGW, Andrej Karpathy, ARK Invest, Fincadia Advisors, G Squared, In-Q-Tel (IQT), KHK & Partners, NVIDIA, Pegatron, Supermicro, Wistron, Wiwynn, Gradient Ventures, Mercato Partners, SVB, 1517, and Crescent Cove
We have research papers accepted at top machine learning and graphics conferences, including NeurIPS, ICCV, SIGGRAPH, and TOG
Our values are publicly available: https://lambda.ai/careers
We offer generous cash & equity compensation
Health, dental, and vision coverage for you and your dependents
Wellness and commuter stipends for select roles
401k Plan with 2% company match (USA employees)
Flexible paid time off plan that we all actually use

Equal Opportunity Employer

Lambda is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law.

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More about this job

Skills

Linux
Infrastructure as code
IBM Terraform
Ansible
Kubernetes
Python
Go
Leadership
Auditing
Reverse engineering
Research
CI/CD
Prioritization
Regulatory compliance
ML

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