Meliotec provides specialized Microsoft architecture and design for complex cloud and hybrid environments. We help organizations secure Microsoft 365, modernize Exchange and Active Directory, deploy Microsoft Defender, and execute complex migrations with minimal business disruption.
Harden identity perimeters, eliminate credential exposures, and deploy Microsoft's unified extended detection and response suite.
Full rollout of Defender for Office 365 (anti-phishing & Safe Links), Defender for Identity (AD threat monitoring), and Defender for Cloud Apps.
Granular Conditional Access policies, phishing-resistant FIDO2 MFA, Privileged Identity Management (PIM), and legacy protocol deprecation.
Advanced on-premises and hybrid threat detection, reconnaissance monitoring, credential theft defense, and automated incident remediation.
Data Loss Prevention (DLP) across Teams, Exchange & cloud storage, automated sensitivity labeling, encryption, and audit log retention.
Seamless cross-tenant data and identity cutovers for mergers, acquisitions, corporate divestitures, or rebranding without end-user downtime.
Cross-tenant domain moves, identity restructuring, user license transitions, and staged cutovers with zero user disruption.
User mailboxes, shared mailboxes, calendar delegations, archives, and transport rules migrated cleanly without bounce-backs.
Full user file structure and metadata migration, sharing permissions mapping, link preservation, and zero data loss validation.
Team channels, chat history preservation, Planner tasks, meeting policies, and customized end-user transition playbooks.
Modernize legacy mail architecture or eliminate on-premises Exchange servers entirely without compromising recipient management or mail routing.
Upgrades from legacy Exchange 2013/2016 to Exchange 2019 / Subscription Edition (SE), applying critical security hotfixes and Cumulative Updates.
Safe retirement and uninstallation of on-premises Exchange servers, removing connectors, SCP records, and virtual directories without breaking mail flow.
Transition to running the official serverless Exchange Management Tools on admin machines, keeping recipient editing without paying for a running server.
Hardening hybrid mail flow, application relays, TLS encryption, and strict SPF, DKIM, and DMARC enforcement to stop spoofing and deliverability drops.
Ensure root-level identity integrity, upgrade core domain controllers, and perform rigorous diagnostic health assessments on your Microsoft cloud and hybrid footprint.
Domain Controller upgrades to Windows Server 2022/2025, schema elevations, Forest/Domain Functional Level advancement, and FRS-to-DFSR SYSVOL migration.
Full-scope diagnostics covering Active Directory replication, DNS latency, GPO redundancy, and disaster recovery validation.
Deep-dive review of Microsoft Secure Score, unused licenses, misconfigured guest access, risky third-party OAuth apps, and a prioritized remediation roadmap.
Architecture and remediation for Entra Connect / Cloud Sync, object filtering, password hash synchronization, and resolving synchronization errors.
Hi, I'm Artem Goloubov, Founder and Principal Consultant at MELIOTEC.
I founded MELIOTEC to provide organizations with direct access to senior Microsoft architecture and engineering expertise—without unnecessary layers between the client and the consultant doing the work.
With more than 15 years of experience in enterprise infrastructure and over a decade specializing in Microsoft cloud, security, identity, and hybrid environments, I bring both architectural guidance and hands-on technical delivery to every engagement.
From Microsoft Defender and security modernization to Exchange and Active Directory transformation, infrastructure assessments, and complex Microsoft 365 tenant-to-tenant migrations, MELIOTEC helps organizations plan and execute critical Microsoft initiatives with a focus on security, reliability, and minimal business disruption.
How We Deliver Flawless Execution
No generic guesswork. We operate with structured runbooks designed to eliminate downtime and prevent business disruption.
Detailed inspection of existing workloads, licensing, identity sources, conditional access rules, and data volumes.
Designing target topology, Zero-Trust security baselines, cutover sequencing, and communication strategy for staff.
Dry runs with test cohorts, staged data syncs, delta testing, and policy simulation to guarantee zero surprises.
Off-hours execution, DNS switch, final delta sync, and hands-on hypercare support to assist every end-user immediately.
Whether you are preparing for a tenant migration or need an urgent security audit of your Entra ID, Defender, or Exchange environment, we are ready to assist.
Directly schedule a slot on our calendar to discuss timelines, scope, or immediate remediation.
Tell us about your organization's environment and requirements.
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