Member of Technical Staff, Security

Wafer; San Francisco (CA); On-site; USD 150,000 - 225,000; Full time

Benefits offered by this job

401(k) retirement plan

Medical, dental, vision insurance

Daily meals and parental leave

Housing stipend near office

Job summary

Wafer is hiring a hands-on security engineer for its inference cloud in San Francisco. You will write code, review designs and own fixes, collaborating with engineers to embed security in every stage of development and operations.

You will review designs for auth, isolation and data handling, build controls for identity and secrets, and work with infra to secure cloud configuration.

Qualifications

• Experience building and securing production software or cloud infrastructure.
• Strong programming and debugging skills for unfamiliar systems.
• Practical understanding of application security, cloud identity, Linux, networking and secrets management.
• Ability to prioritize protections and justify risks with engineers.

Responsibilities

• Review designs for authentication, authorization, tenant isolation and data handling risks.
• Build and improve controls for identity, least-privilege access and secrets.
• Partner with infra engineers on secure cloud configuration and workload isolation.
• Find, prioritize and fix vulnerabilities with effective remediation.
• Improve logging, detection and incident response with automation.

Skills

Security engineering

Programming

Cloud infrastructure

Education

Bachelor's degree in Computer Science or related field

Tools

Linux

AWS/Azure

CI/CD tooling

Job description

Wafer is the fastest inference cloud for open source models.

We're looking for a hands-on security engineer to help secure the systems behind our inference cloud. You'll work directly with engineers to find weaknesses, build practical protections and make security part of how we design, ship and operate software. This is an engineering role: you'll write code, review designs and own fixes.

What you'll do

• Review application, API and infrastructure designs for authentication, authorization, tenant isolation and data-handling risks.

• Build and improve controls for identity, least-privilege access, secrets and service credentials.

• Partner with infrastructure engineers on private networking, workload isolation and secure cloud configuration.

• Find, prioritize and fix vulnerabilities, and verify that remediation addresses the underlying issue.

• Improve security logging, detection and incident response, including practical tools and automation.

• Make secure development easier through design reviews, code reviews and automated checks.

• Work with our compliance owner to provide technical evidence for audits and customer reviews, and implement the engineering changes they require.

What we look for

• Experience building and securing production software or cloud infrastructure.

• Strong programming and debugging skills, with the ability to investigate unfamiliar systems and ship reliable fixes.

• A practical understanding of application and API security, cloud identity, Linux systems, networking and secrets management.

• Good judgment about risk and tradeoffs. You can prioritize meaningful protections and explain your reasoning clearly.

• A record of taking ownership and working closely with engineers from investigation through remediation.

Experience with distributed systems, multi-tenant infrastructure or AI inference platforms is useful.

Benefits

• 401(k) retirement plan.

• Fully covered medical, dental, and vision insurance.

• Daily lunch and dinner, unlimited PTO, and parental leave.

• $1K/month housing stipend (post-tax) if you live within walking distance (0.5 miles) from the office.

• Covered Uber/Waymo from/to office.

• Relocation allowance and benefits.

• Visa sponsorship available.

How we work

Full-time, on-site in San Francisco.