Hiring: Senior IT Systems Engineer Company: Klaviyo Location: Boston, MA Job Posted Time: 2026-09-12 13:06:39 Target Skills & Keywords : AWS, Ansible, Azure, Azure AD, Bash, Change Management, Configuration Management, DNS, EC2, GCP, IAM, Jira, LLM, Lambda, OIDC, Okta, PowerShell, Python, REST, SAML, SOC 2, SaaS, Slack, Terraform, VPC, VPN, Zoom, iOS, macOS About the job Experience: •4+ years of hands-on experience as a systems engineer or systems administrator, with a track record of owning enterprise systems in production not just operating them, but deciding how they should work. Required Skills: •How You’ll Have An Impact •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. Qualifications: •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. •Applied hands-on capability in 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. •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. Compensation: •$112,000 - $168,000 / year Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!