Network Security Engineer

WHO WE ARE

Lightning AI is the company behind PyTorch Lightning. Founded in 2019, we build

an end-to-end platform for developing, training, and deploying AI

systems—designed to take ideas from research to production with less friction.

Through our merger with Voltage Park, a neocloud and AI Factory, Lightning AI

combines developer-first software with cost-efficient, large-scale compute.

Teams get the tools they need for experimentation, training, and production

inference, with security, observability, and control built in.

We serve solo researchers, startups, and large enterprises. Lightning AI

operates globally with offices in New York City, San Francisco, Seattle, and

London, and is backed by Coatue, Index Ventures, Bain Capital Ventures, and

Firstminute.

WHAT WE'RE LOOKING FOR

We’re looking for a Network Security Engineer to design, implement, and maintain

secure network infrastructure across Lightning AI’s platform. In this role,

you’ll take ownership of security systems and controls, working closely with

infrastructure and engineering teams to ensure the reliability and protection of

our production environment, including safeguarding our AI infrastructure against

evolving threats.

This role can be based out of one of our office hubs (San Francisco or Seattle),

with in-office requirements of at least 2 days per week and occasional team and

company offsites. We are not able to offer visa sponsorship for this position at

this time.

WHAT YOU'LL DO

* Network Security Design & Implementation: Architect robust network

infrastructures, leveraging firewalls, VPNs, IDS/IPS, and network

segmentation to enhance security.

* Threat Prevention & Risk Mitigation: Conduct comprehensive vulnerability

assessments and penetration tests, ensuring robust security policies and

access controls.

* Monitoring & Incident Response: Utilize SIEM tools for proactive threat

detection and collaborate with SOC teams for incident response and breach

investigation.

* Compliance & Security Governance: Ensure compliance with industry standards

and regulatory requirements, maintaining thorough security documentation.

* Security Automation & Optimization: Implement and optimize automation tools

for threat detection and response, while staying abreast of emerging security

technologies.

WHAT YOU'LL NEED

* Technical Expertise in firewalls (e.g., Palo Alto, Cisco ASA, Fortinet),

IDS/IPS, VPNs, SD-WAN, cloud security, and encryption.

* Proficiency with Security Tools: Experience with SIEM (e.g., Splunk, QRadar),

vulnerability scanners (e.g., Nessus, Qualys), and endpoint security

solutions.

* Relevant Certifications, such as CCNP Security, CEH, CISSP, and GIAC

Certifications (GSEC, GCIH, GPEN).

* A Passion for Security: A proactive approach to learning about new security

technologies and threats

COMPENSATION

We are committed to offering competitive compensation that reflects the value

each team member brings to our mission. Final offers are based on factors such

as experience, skills, geographic location, and role expectations. In addition

to base salary, our total rewards package for eligible roles includes a

discretionary bonus, a meaningful equity component, and comprehensive benefits.

The anticipated annual base salary range for this role is:

$180,000—$220,000 USD

BENEFITS AND PERKS

We offer a comprehensive and competitive benefits package designed to support

our employees’ health, well-being, and long-term success.

Benefits

may vary by

location, team, and role.

Benefits

include:

* Comprehensive medical, dental and vision coverage (U.S.); Private medical and

dental insurance (U.K.)

* Retirement and financial wellness support (U.S.); Pension contribution (U.K.)

* Generous paid time off, plus holidays

* Paid parental leave

* Professional development support

* Wellness and work-from-home stipends

* Flexible work environment

At Lightning AI, we are committed to fostering an inclusive and diverse

workplace. We believe that diverse teams drive innovation and create better

products. We provide equal employment opportunities to all employees and

applicants without regard to race, color, religion, gender, sexual orientation,

gender identity, national origin, age, disability, veteran status, or any other

protected characteristic. We are dedicated to building a culture where everyone

can thrive and contribute to their fullest potential.