Senior Systems Administrator

2 weeks ago

Taguig, Philippines Dexcom Full time

Dexcom Corporation (NASDAQ DXCM) is a pioneer and global leader in continuous glucose monitoring (CGM). Dexcom began as a small company with a big dream: to forever change how diabetes is managed. Over 25 years, we pioneered an industry and continue to empower people to take control of health through personalized, actionable insights. Meet the team IT Core Services (ITCS) is Dexcom’s global backbone for identity, collaboration, and core infrastructure. We design, secure, and operate Active Directory/Entra ID, Okta, and Microsoft 365/Exchange Online for a fast‑growing, mission‑driven company. We partner closely with Security, Compliance, and Application teams to ship secure, scalable services that enable Dexcom to focus on transforming diabetes care. Where you come in Administer and harden Okta : manage SSO integrations (SAML/OIDC), SCIM provisioning, group lifecycle, app assignments, and Okta Workflows automation for workforce and service identities. Operate and improve Active Directory and Entra ID : maintain domain controllers, DNS, GPOs, hybrid identity, Conditional Access, PIM, and RBAC. Lead Microsoft 365 and Exchange Online administration : oversee email flow and transport, retention and eDiscovery, Teams/SharePoint/OneDrive governance, and hygiene. Implement onboarding standards for applications : enforce Okta SSO, SCIM, MFA, least privilege, and secure transport in partnership with security and application owners. Leverage the Workday‑driven identity and Self‑Service Groups platform for role‑based access; support IGA cycles, including access reviews, certifications, and audit evidence. Monitor and respond using observability and alerting tools : drive incident, problem, and change management practices; contribute to runbooks. Produce audit artifacts : configuration snapshots, logs, and access attestations to support SOX ITGC, HIPAA, and FDA requirements. Participate in on‑call rotation and planned maintenance windows : coordinate with U.S., EMEA, and APAC teams. What makes you successful Okta & IAM depth : SAML/OIDC, SCIM, app onboarding, group strategy, Okta Workflows; practical experience applying MFA and least privilege. AD/Entra ID expertise : Hybrid identity, GPO/replication troubleshooting, Conditional Access and PIM, and identity protection signals. PowerShell/automation : scripting at scale across AD, M365, and Entra; familiarity with Microsoft Graph. M365/Exchange administration : transport rules, mail hygiene, retention/eDiscovery, Teams/SharePoint governance. Security mindset : threat‑informed configurations, logging/telemetry, service account hygiene, and change control discipline. Audit & documentation : clear change records, diagrams, SOPs, and audit evidence for regulated environments. Collaboration : partner effectively with Security, App Owners, and HR/TA data stewards; communicate clearly during incidents and post‑incident reviews. Consistency & reliability : regular, reliable attendance and participation in an on‑call rotation. Experience and Education Requirements Typically requires a Bachelor’s degree and a minimum of 5 – 8 years of related experience. What you’ll get A front‑row seat to life‑changing CGM technology. A full and comprehensive benefits program. Growth opportunities on a global scale. Access to career development through in‑house learning programs and/or qualified tuition reimbursement. An exciting and innovative, industry‑leading organization committed to our employees, customers, and the communities we serve. #J-18808-Ljbffr

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