Identity and infrastructure, engineered for zero downtime.
I design, harden, and migrate the hybrid Microsoft systems enterprises run on — from Active Directory forests to multi-tenant Microsoft 365 and Azure environments.
Most outages aren’t caused by attackers. They’re caused by infrastructure nobody re-evaluated after it shipped.
Domain controllers fall out of support, certificates expire quietly, conditional access rules drift from what they were meant to enforce. The work here isn’t a one-time migration — it’s keeping identity and infrastructure current enough that they’re never the reason something breaks.
Infrastructure at scale
Enterprise technology stack
Certifications & training
From assessment to hardened, hands-off infrastructure
Every engagement follows the same discipline, regardless of size: understand what’s actually running before changing anything, then migrate and harden in a sequence that keeps people working throughout.
Map the environment
Domain structure, GPOs, mail flow, tenant configuration, and accumulated technical debt — documented before anything changes.
Architect the target state
Hybrid identity, network paths, certificate authorities, and migration sequencing — scoped to the environment’s real constraints, not a generic playbook.
Cut over in controlled phases
Staged execution with validation at each step, security baselines applied as part of the move — not bolted on afterward.
Hand over what’s maintainable
Documentation and runbooks for what changed and why, so the environment doesn’t depend on any one person to keep running.
Active Directory services
Active Directory is the root of trust for almost everything else in the environment — sign-in, file access, mail flow, application permissions. When the directory drifts out of date, every system built on top of it inherits the risk. I keep it current, documented, and hard to compromise.
Infrastructure modernization
Modernizing core identity services by upgrading domain controllers to Windows Server 2025, raising forest and domain functional levels where safe, and retiring legacy hardware footprints without service interruption.
Policy hardening
Implementing standardized security baselines via Group Policy, then auditing for conflicting or orphaned GPOs that slow logon times or silently fail to apply across controllers.
Advanced AD-CS
Architecting an internal certificate authority hierarchy and issuing certificates for server encryption, authentication, and securing services like Office Online Server — with renewal tracked before anything expires unnoticed.
Vulnerability remediation
Hardening the identity perimeter against the techniques attackers actually use — Kerberoasting, stale privileged accounts, weak trust paths — using lab environments to test fixes before they touch production.
Microsoft 365 & Azure
Cloud platforms change underneath you constantly — new licensing tiers, deprecated connectors, shifting compliance requirements. The goal isn’t just migrating into Microsoft 365 and Azure; it’s building hybrid environments that stay stable as the platform keeps moving.
Tenant migrations
Orchestrating large-scale migration projects — 800+ TB across more than 1,000 users — with mailbox, SharePoint, and OneDrive transitions staged so end users barely notice the cutover.
Endpoint management
Leveraging Microsoft Intune for MDM/MAM deployment, automated app rollout, and fleet-wide compliance policies — so a lost or non-compliant device is contained, not a fire drill.
Hybrid identity
Designing secure architectures using Entra ID, Conditional Access, and MFA to protect the enterprise perimeter while still enabling single sign-on across on-prem and cloud apps.
Cloud connectivity
Migrating Site-to-Site VPN connections to new edge firewalls with route-based configurations, validated in parallel with the old path before the cutover — so connectivity never drops.
What clients say
“Binod took over our AD migration mid-stream after the previous contractor left. He documented everything, fixed the broken sync, and completed the cutover without a single helpdesk ticket.”
“Our Exchange environment was in a critical state — certificates expired, queues backing up. Binod patched and stabilized it in days, then laid out a roadmap to modernize the whole stack.”
“The M365 migration was huge — 1,200 users across multiple countries. Binod planned every phase meticulously. We had zero downtime and users barely noticed the transition.”
Before you reach out
A few things that typically come up early in a conversation.
Do you work with on-site teams or fully remote?
Most Active Directory, Exchange, and Azure work can be done remotely over secure access. On-site time is scoped separately if hardware or physical network changes are involved.
How disruptive is a tenant or directory migration?
Migrations are staged and tested in phases specifically to avoid disrupting mail flow or sign-in during business hours — the goal on every project is zero perceived downtime for end users.
What happens after a migration or hardening project ends?
You get documentation of what changed and why, plus a runbook for common operations — so the environment doesn’t depend on me being reachable to keep running.
Can you work alongside our existing IT team or MSP?
Yes. Most engagements involve handing architecture decisions and hardening work off to an internal team or MSP for day-to-day operation once the project is complete.
Let’s talk infrastructure
Active Directory, Exchange, M365, or Azure — describe what you’re working on and I’ll follow up with next steps.