Lead IT Systems Engineer

Klaviyo•Boston, MA

About The Position

Klaviyo’s global corporate Information Technology (IT) team is responsible for providing technology systems, administration, and support to Klaviyos around the world. Our main goal is to ensure that Klaviyos everywhere have a strong technology foundation to do great work. The IT Team solves problems using technology and provides Klaviyo’s continued scalability and sustainable employee growth in a rapidly evolving environment. The IT Systems team is primarily responsible for SaaS systems administration and end-to-end lifecycle management, building automation, and engineering solutions for both other internal teams and the business. The IT Systems team is highly collaborative, working closely with the IT Searchbar team — our end-user support team — as well as with our Security, Risk, and Trust teams and the broader Engineering department. As a Lead IT Systems Engineer on the IT Systems team, you will lead the design, implementation, and maintenance of our enterprise SaaS systems. You will spearhead projects that range from SSO/SCIM implementations to complex multi-tool integrations and automations, with a focus on scalability and efficiency. You'll collaborate closely with operations, engineering, and the IT Searchbar team to ensure seamless system performance and act as a technical escalation point for system-related issues.

Requirements

A minimum of five years' experience in systems engineering within fast-paced and result-driven environments.
Proven track record of defining problem statements, managing technical projects, collaborating with stakeholders, and delivering impactful results.
Extensive experience in Identity Access Management (IAM), including IdP configuration, management, and maintenance (Okta or Azure experience is preferred).
Strong experience working with enterprise-scale networking topics, including routing, DNS, and building and maintaining multiple global office networks and VPNs.
Demonstrated proficiency in understanding and integrating Large Language Models (LLMs) or other AI technologies into enterprise systems for automation or process improvement.
Deep technical knowledge in at least one additional domain: corporate security, endpoint management (Jamf, Intune, or equivalent), cloud infrastructure (GCP, AWS, or Azure), or enterprise SaaS administration(Atlassian,Google Workspace,etc).
Strong experience in automating workflows and repetitive tasks using scripting (Bash, Powershell, or Python). Python is preferred, and AWS Lambda function experience is a plus. Familiarity with infrastructure-as-code tools (Terraform or Ansible) is a bonus.
Knowledgeable in vendor management and IT budget management.
Participation in an after-hours on-call rotation with the IT Systems team is required for site specific or business blocking issues.

Nice To Haves

IAM & Automation: Design and implement automated security, specializing in Okta Workflows (or similar) for user lifecycle and access/auditing.
Systems Engineering (High-Growth): Experienced in managing/scaling critical infrastructure in agile, fast-paced SaaS/tech environments; champions security and scalability.
API Integration: Build custom tools and leverage APIs (RESTful, OAuth 2.0/OpenID Connect) for secure, automated integration of corporate systems.
Cloud Security (AWS/GCP): Deep, hands-on experience securing and managing AWS and GCP core infrastructure, including: Networking/Compute: VPC, EC2, Security Groups/Firewalls, ACLs. IAM: Defining and managing least-privilege roles (user, group, service).

Responsibilities

Mentor team members to grow and develop in their careers and help increase their scope and impact throughout their tenure at Klaviyo.
Give and receive meaningful feedback focusing on empathy, curiosity, and investment in growth.
Establish team standards, implement frameworks for intake and prioritization of projects and tasks, and establish and monitor objectives and key results (OKRs).
Partner with the stakeholders to build, maintain, and improve tooling/infrastructure and documentation that helps meet the business needs for today and the future.
Collaborate with IT and internal teams to automate and improve workflows, implement and enhance escalation processes, and drive IT initiatives.
Implement new processes, and evaluate and improve existing processes.