Lead Site Reliability Engineer - Security

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day.

We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements.

If you’re a close but not exact match with the description, we hope you’ll still consider applying. Want to learn more about life at Klaviyo?

Visit to see how we empower creators to own their own destiny.

Site Reliability Engineering (SRE) is what you get when you treat system operations as a software engineering problem. The mission of the Site Reliability Engineering team is to ensure uninterrupted service for Klaviyo customers and act as a force multiplier for Klaviyo product teams to deliver better software faster.

The SRE team builds foundational backend services as well as tooling and automation to allow product teams to release and scale their software reliably and predictably.

Lead SREs are team players who embed themselves within product teams as needed to advance the architecture, security, and safety of software systems and train their peers in topics such as asset based access control, vulnerability management at scale, and platform security concerns.

As a Lead Site Reliability Engineer, you will own foundational Klaviyo services and make a big impact on the productivity of our product engineering teams.

Klaviyo is growing fast and we have openings for all skill levels across all of our teams. Learn more about our engineering culture at

How You'll Make a Difference

• Ship foundational services to enable Klaviyo engineering to move faster with confidence
• Design and develop systems and processes that enable highly available, scalable, & secure systems
• Leverage technology such as Python, AWS, Cloudflare, Kubernetes, Bash, Terraform, MySQL, Vault, to advance Klaviyo’s platform
• Champion best practice security initiatives by actively collaborating with other teams in a culture that values whiteboarding and technical design review
• Contribute to the company in multiple areas, constantly pushing yourself to be a better engineer and to level up all of your peers within your team and within Klaviyo.
• Improve the level of automation around vulnerability detection and remediation through all phases of the PDLC
• Participate in periodic on call duties
• Design secure-by-default processes, systems, and services that will scale globally.
• Work hand-in-hand with product-facing engineers and other SREs to ship impactful code
• Perform quantitative analysis to understand and scale Klaviyo systems
• Uncover and advocate for preventative, upstream solutions with internal stakeholders
• Evangelize Site Reliability best practices across the engineering organization

Who You Are

• Solid 10+ years of experience in the SRE / Devops / Platform Eng fields
• BA or BS Degree in Computer Science, related field, or equivalent experience
• Ability to handle yourself in outage situations and to drive failures to root cause analysis
• Understanding of Linux (we run Ubuntu) and all layers of the networking stack
• Experience working on an engineering team building software
• Experience writing code using best practices in a language such as Python, Ruby, & Go
• Experience working with public cloud platforms such as AWS, GCP, or Azure
• Domain expertise in security domains such as access management, vulnerability management, secrets storage & management, and tooling.
• Familiarity with creating and managing product roadmaps with input from stakeholders.

The pay range for this role is listed below. Sales roles are also eligible for variable compensation and hourly non-exempt roles are eligible for overtime in accordance with applicable law.

This role is eligible for benefits, including : medical, dental and vision coverage, health savings accounts, flexible spending accounts, 401(k), flexible paid time off and company-paid holidays and a culture of learning that includes a learning allowance and access to a professional coaching service for all employees.

Base Pay Range For US Locations : $192,000 $288,000 USD

Get to Know Klaviyo

We’re Klaviyo (pronounced clay-vee-oh). We empower creators to own their destiny by making first-party data accessible and actionable like never before.

We see limitless potential for the technology we’re developing to nurture personalized experiences in ecommerce and beyond.

To reach our goals, we need our own crew of remarkable creators ambitious and collaborative teammates who stay focused on our north star : delighting our customers.

If you’re ready to do the best work of your career, where you’ll be welcomed as your whole self from day one and supported with generous benefits, we hope you’ll join us.

Klaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.

IMPORTANT NOTICE : Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process.

All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses (@klaviyo), instant messaging platforms, or unsolicited calls.

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