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Added 1 min ago
C
Staff Flight Software Engineer
CesiumAstro
Westminster, CO
- $158,000 to $189,000 USD / year
…ideal candidate will be an experienced spacecraft software engineer, motivated to develop every aspect of space mission software from Linux-based satellite operating systems to low-level…
Added 1 min ago
C
Senior Embedded Software Engineer
CesiumAstro
El Segundo, CA
- $140,000 to $168,000 USD / year
…projects will include Linux-based single-board computers and high-reliability microcontroller systems. Cesium’s goal is to create an out-of-the-box hardware and software experience which…
Added 5 mins ago
Facilities Engineer
Newell Brands
Atlanta
We are looking for a hands-on, early-career Associate Engineer to join our Energy, Reliability & Automation (ERA) team within Global Supply Chain Engineering. This role is primarily…
Added 6 mins ago
Senior Systems Engineer
Navy Federal Credit Union
Vienna, VA · Pensacola, FL
Ensure requirements address quality, risk, compliance, controls, reliability, performance, and member impact.
Added 10 mins ago
AA
Information Technology Specialist (Information Security)
Animal and Plant Health Inspection Service
Kansas City, MO · Raleigh, NC · Fort Collins, CO · Manhattan, KS · Ames, IA
- $125,776 to $163,514 USD / year
…vulnerability assessment for all MRP-ITD IT systems, and serves as a senior engineer within the Cybersecurity Services…
Added 12 mins ago
CS
Software Integration Engineer 3 (On-Call) - Linux/Bash/Python/Docker/Kubernetes/Helm/Grafana/Jira
Captivation Software
Annapolis Junction, MD
- $130,000 to $270,000 USD / year
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Added 14 mins ago
Senior Data Engineer
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Added 14 mins ago
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Added 15 mins ago
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Added 19 mins ago
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CA
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Added 20 mins ago
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- Develop or improve file system functionality, including how it interacts with the block layer.
Added 20 mins ago
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Added 20 mins ago
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Platinum Technologies
Ft Meade, MD
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Added 22 mins ago
Facilities Engineer
United States
We are looking for a hands-on, early-career Associate Engineer to join our Energy, Reliability & Automation (ERA) team within Global Supply Chain Engineering. This role is primarily…
Added 25 mins ago
Senior Specialist, Manufacturing Engineer (Palm Bay, FL)
L3Harris
Palm Bay, FL
Job Title: Senior Specialist, Manufacturing Engineer
Added 32 mins ago
P4 Sr Software Development Engineer
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CA
We are seeking a P4 Senior Development Engineer to help design, build, optimize, and operate core platform services that power Workday at scale. This role is ideal for a hands-on engineer…
Added 32 mins ago
Senior Software Development Engineer
Workday, Inc.
CA
As a Senior Engineer in our Platform Engineering organization, you will lead the architecture, design, and implementation of complex enterprise systems. You will serve as a technical anchor…
Added 32 mins ago
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Senior Software Engineer, Operations Tools & Al Enablement
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- $180,000 to $200,000 USD / year
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Added 33 mins ago
Software Development Engineer II, DC Bridge
Amazon Data Services, Inc.
Denver, CO
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Added 35 mins ago
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Added 42 mins ago
Ansible Automation Engineer
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As a Senior Automation Engineer in Infrastructure, Platforms & Operations, you will be accountable for developing automations and enabling self-service of infrastructure engagements system…
Added 44 mins ago
HPC - Senior Test Engineer - Linux, Bash, REST
Erias Ventures, LLC
Annapolis Junction, MD
We are seeking a Test Engineer who shall be responsible for planning, developing, executing, and automating testing activities for software applications, middleware, and infrastructure…
Added 49 mins ago
IBM Maximo Senior Business Analyst
NiyamIT
Remote, United States
Strong ability to evaluate business operations and identify opportunities to enhance efficiency, reliability, compliance, and user experience through process optimization and effective…
Added 51 mins ago
Staff Data Engineer - Databricks
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Work at Home, IL
We are seeking a highly experienced and technically proficient Staff Data Engineer to join our team. This is a senior individual contributor role for a leader who is passionate about…
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Software Engineer V
Indeed
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In this role, you'll collaborate closely with senior engineers, product leaders, and cross-functional partners to design extensible solutions, guide architectural decisions, and improve…

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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