Zscaler Engineering
Deployment, recovery, performance, and stabilization across ZIA, ZPA, and ZDX. The escalation authority called when standard implementations break — and the architecture work that prevents that from happening in the first place.
What we engineer
Three platforms, one operational discipline. Each gets designed, deployed, and supported as a production system — not a checkbox deliverable.
Internet Access
Inline cloud proxy with TLS inspection, DLP, CASB, advanced threat prevention, and policy that scales beyond the IP-rule era.
- Policy framework built around business intent, not subnet
- TLS 1.3 inspection with cert-pinning exception handling
- DLP rules tuned for healthcare PHI and PCI cardholder data
- CASB integration for SaaS posture and shadow IT discovery
- Inline GenAI controls for ChatGPT, Copilot, agent-mode tooling
Private Access
ZTNA replacing the VPN. Users connect to applications, not networks. Third-party access is scoped per app, per session, with full audit.
- App Connector topology designed for the actual workload footprint
- Browser Access for unmanaged endpoints and contractors
- Segment group design that maps to business ownership
- Active Directory tree integration without legacy network exposure
- Posture-aware access tied to EDR signal
Digital Experience
End-to-end visibility into the user experience — from the endpoint through the cloud edge to the app — and the engineering work that makes the data actionable.
- Probe design tuned to the apps that actually matter to the business
- Baseline establishment and drift detection
- Root cause triage workflows for help desk and SRE handoff
- Correlation with ZIA and ZPA telemetry for full-path diagnosis
- Reporting that survives a board-level conversation
Failure category coverage
The production-blocking issue classes we've engineered through and built escalation playbooks for. These are the categories that decide whether a Zscaler deployment stays in production or rolls back at 2 a.m.
Integration patterns
The seams where Zscaler meets the rest of your stack. Designed to fail safe, log everything, and survive vendor changes.
Identity providers
Single source of identity wired to SAML / OIDC, with conditional access policy mirrored across the IdP and Zscaler control planes so they don't drift.
Endpoint & EDR
Device posture signal fed into ZPA access decisions. Quarantine paths defined for unhealthy endpoints. No surprise loss of access during EDR outages.
SIEM & SOAR
NSS feeds and API connectors to your SIEM, with detection-engineering input on what telemetry actually drives a credible alert.
Cloud (AWS / Azure)
App Connectors deployed in the right VPCs/VNets, posture management integrated, identity federation done once and done correctly.
CASB & SaaS
API-mode CASB for posture and inline-mode for control. Shadow IT discovery wired to a sanctioned-app workflow that doesn't antagonize the business.
AI / GenAI tooling
Inline visibility for ChatGPT, Copilot, Gemini, Claude, and agent-mode workflows. Prompt-level DLP and exfiltration prevention with policy carve-outs for sanctioned workflows.
Post-merger stabilization playbook
The repeatable sequence for combining two Zscaler estates without taking either down. Proven at 120K+ user scale.
Tenant audit & baseline
Full inventory of both tenants — policies, App Connectors, segments, conditional access. Identify drift between intended state and live config. Establish a "do not change" set for the cutover window.
Identity unification
Single IdP for the combined entity, SCIM into Zscaler from one source, claim mapping rationalized. Old IdP kept warm for safe rollback until cutover stabilizes.
Policy convergence
Reconcile the two policy frameworks into one. Carve out exception rules for the inherited apps that need migration, with a sunset date for every exception.
App Connector consolidation
Migrate App Connectors into the surviving tenant in waves, by business unit, with rollback drills before each wave. Capacity planning sized for the combined estate, not the average.
Stabilize & decommission
Run dual-tenant for the validation window. Decommission the absorbed tenant only after the new posture passes a full audit cycle. Document everything for the next M&A event.
Platform expertise
Arduwyn engineers across the full Zscaler platform — and the systems it has to integrate with.
Have a Zscaler problem that needs an engineer?
Whether it's a new deployment, a stabilization, or a Tier-3 escalation — tell us the constraint. We respond within one business day.