Senior IT Systems Engineer — AI-Driven Automation & Scale

Klaviyo; Boston (MA); Hybrid; USD 112,000 - 168,000; Full time

Job summary

Klaviyo is seeking a Senior IT Systems Engineer to own enterprise systems, from identity management to endpoint governance and SaaS platforms. You will lead end-to-end projects, design scalable solutions, and partner across operations, security, and engineering to deliver reliable, secure systems.

You will apply AI to workflows, build automation with Bash/PowerShell/Python, and mentor colleagues while maintaining strong documentation and runbooks for outages and audits.

Qualifications

• 4+ years of hands-on experience as a systems engineer or systems administrator owning enterprise systems in production.
• You define problem statements yourself. You can take a vague or contested business need, scope it, drive alignment with stakeholders, and deliver with minimal direction without losing the thread when priorities shift.
• Deep working knowledge across a wide range of IT systems, including enterprise device management, identity and access management, and endpoint security.
• You have deployed and managed macOS and iOS devices at scale through an MDM (Jamf preferred), including configuration profiles, policies, and OS update strategy. Windows management (Intune, Autopilot) is a strong plus.
• You have administered core SaaS platforms such as Google Workspace, Slack, Atlassian, and Zoom, including their security and admin controls.
• Hands-on experience with IdP configuration, management, and maintenance: SSO (SAML/OIDC), SCIM provisioning, group and role design, and app onboarding. Experience with Okta or Entra ID (Azure AD) is preferred.
• You have owned the identity lifecycle in practice onboarding, role changes, and offboarding and understand the security and audit consequences of getting it wrong.
• AI proficiency: AI is already part of how you work, and you can show it. You use LLM assistants and agents to research, write and debug code, draft documentation, and compress routine work, and you exercise judgment about when to trust the output.
• You automate by default, and you have the scripting skills to do it: Bash, PowerShell, or Python. Python is preferred and AWS Lambda experience is a plus. You have replaced manual, repetitive work with automation other people now rely on, and you can safely read and modify someone else’s script.
• Comfortable working with APIs REST, JSON, authentication, and rate limits and building integrations between systems that do not natively talk to each other.
• You value clean, concise controls and easily editable security functionality within tools, and you can produce evidence for access reviews and audits (SOC 2, SOX) without it derailing your week.
• Disciplined change management: you test, get peer review, plan rollback, communicate to affected users, and document what changed including under pressure.
• You can debug a system problem you have never seen before, drive it to the root cause, and communicate clearly to non-technical stakeholders while it is still unresolved.
• You can evaluate vendors and tools on their merits: security posture, integration surface, total cost and make a defensible recommendation.
• Strong written communication. Your documentation, runbooks, and change notices are good enough that other people can act on them without asking you.
• Participation in an after-hours on-call rotation with the IT Systems team is required for site-specific or business-blocking issues.

Responsibilities

• Own systems, not tickets. You will take a domain identity, endpoint, or a set of core SaaS platforms and be accountable for its reliability, security, and roadmap, raising the decisions that need to go higher and driving everything else yourself.
• Lead projects end to end at pace: scope the work, design the solution, plan the rollout and the rollback, communicate the change, and land it without skipping testing, peer review, or documentation to hit a date.
• Turn ambiguous business needs into clear problem statements and systems that hold up, so Klaviyos spend their time on their work instead of fighting their tools.
• Set the technical bar: clean configuration, least-privilege access by default, automation over manual toil, and runbooks the rest of the team can operate from without you in the room.
• Define what success looks like before you build, then prove it with data tickets deflected, provisioning time saved, coverage and compliance gaps closed.
• Raise the people around you: review others’ work, mentor engineers earlier in their careers, and give and receive direct, useful feedback.
• Act as a technical escalation point for complex system issues, drive root cause rather than symptoms, and feed what you learn back into the platform so the same incident does not happen twice.

Skills

Systems engineering

Identity & access management

Endpoint security

Automation scripting

AI in IT workflows

Change management

Education

Bachelor's degree in IT or related field

Tools

Jamf Pro (MDM)

Intune

Okta

Azure AD

Google Workspace

Slack

Zoom

Atlassian

Job description

Klaviyo is seeking a Senior IT Systems Engineer to own enterprise systems, from identity management to endpoint governance and SaaS platforms. You will lead end-to-end projects, design scalable solutions, and partner across operations, security, and engineering to deliver reliable, secure systems.

You will apply AI to workflows, build automation with Bash/PowerShell/Python, and mentor colleagues while maintaining strong documentation and runbooks for outages and audits.