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Cloud Computing / Migration

Zero-Downtime
Cloud Migration
Done Right

From legacy data centers to modern cloud infrastructure — we migrate your workloads with a proven methodology that protects data integrity, minimizes disruption, and accelerates your path to the cloud.

✓ Zero Downtime Strategy ✓ Rollback-Ready ✓ Data Integrity Guaranteed
Before Migration
Aging on-premise hardware
High capital expenditure
Limited scalability
Manual patching & maintenance
Limited disaster recovery
↓ Kailen Migration Engine ↓
After Migration
Auto-scaling cloud infrastructure
Pay-as-you-go OPEX model
Global scale on demand
Automated patching & updates
Multi-region disaster recovery
Migration Strategies

The Right Strategy
for Every Workload

Not every application should be migrated the same way. We classify each workload using the industry-standard 7 Rs framework — selecting the path that balances speed, cost, and modernization benefit.

Re
Rehost
Lift-and-shift applications to the cloud as-is. Fast, low-risk, and ideal for workloads where modernization can come later — or isn't necessary.
Low Effort
Rp
Replatform
Lift, tinker, and shift. Move to managed services (e.g., RDS instead of self-managed MySQL) without re-architecting core application logic.
Medium Effort
Rf
Refactor
Re-architect applications to leverage cloud-native capabilities — microservices, serverless, containers. Maximum cloud benefit, highest transformation value.
High Effort
Rr
Repurchase
Replace with a SaaS product. Trade custom-built or outdated software for a cloud-native equivalent — often the most cost-effective long-term choice.
Medium Effort
Rt
Retire
Decommission applications that are no longer needed. Migrations surface redundant systems — eliminating them reduces costs and complexity.
Low Effort
Rh
Retain
Keep certain workloads on-premises temporarily — due to compliance, latency, or business reasons — while migrating everything else.
Minimal Effort
Rc
Relocate
Move infrastructure to the cloud without purchasing new hardware or refactoring — typically used for VMware environments migrating to VMware Cloud on AWS.
Low Effort
🎯
Our Approach
We classify every application in your portfolio against these strategies — delivering a prioritized migration roadmap that sequences by complexity, business criticality, and ROI.
How We Execute

A Proven
Migration Playbook

Our structured migration methodology has been refined across 60+ enterprise migrations — minimizing risk while maximizing speed.

01
Discover
Weeks 1–3

Discovery & Portfolio Assessment

Automated discovery of your full application and infrastructure portfolio. We map dependencies, quantify technical debt, classify each workload by migration strategy, and deliver a business case with ROI projections. No guesswork — data-driven decisions from day one.

Application InventoryDependency MapROI ModelRisk Register
02
Plan
Weeks 4–6

Migration Architecture & Wave Planning

Detailed cloud architecture design for target-state environments, network topology, security controls, and IAM framework. We sequence workloads into migration waves — starting with low-risk applications to build momentum and organizational confidence before tackling critical systems.

Architecture BlueprintWave PlanRunbooksRollback Procedures
03
Migrate
Weeks 7–20

Phased Migration Execution

Wave-by-wave migration execution with parallel-run validation — running old and new environments simultaneously until the new platform is validated. Automated replication tools (AWS MGN, Azure Migrate) minimize manual effort. Cutover windows are pre-agreed and executed during off-peak hours.

Live MigrationsParallel ValidationCutover ExecutionSmoke Tests
04
Validate
Weeks 21–24

Testing & Hypercare Period

Comprehensive post-migration testing including performance benchmarking, security scanning, DR failover drills, and user acceptance testing. A dedicated hypercare team monitors closely for the first 30 days — ready to respond to any issues within minutes.

Performance TestsSecurity ScanDR DrillUAT Sign-off
05
Optimize
Months 2–6

Post-Migration Optimization

30/60/90-day optimization sprints covering cost rightsizing, security hardening, performance tuning, and tagging/governance enforcement. We also deliver knowledge transfer sessions so your team can independently manage and evolve the cloud environment going forward.

Cost RightsizingSecurity HardeningKnowledge TransferFinOps Setup
What We Migrate

Every Type of
Workload

Our team has hands-on experience migrating every category of enterprise workload — from monolithic legacy applications to complex multi-tier distributed systems.

🖥️
Web Applications
Monolithic and tiered web apps migrated to managed compute, containerized workloads on EKS/AKS, or serverless architectures — with zero-downtime cutovers.
Strategy: Rehost → Refactor
🗄️
Databases
Oracle, SQL Server, MySQL, and PostgreSQL migrations to managed cloud databases with minimal downtime using CDC replication and schema conversion tools.
Strategy: Replatform → Refactor
📁
File & Storage Systems
NAS, SAN, and shared file systems migrated to cloud-native object storage, managed file services, and tiered archival solutions with automated lifecycle policies.
Strategy: Replatform
🏭
Enterprise Applications
SAP, Oracle ERP, and Microsoft Dynamics migrations with specialized tools and RISE/Azure Center for SAP solutions guidance to accelerate timelines.
Strategy: Rehost → Replatform
📊
Data Warehouses & Analytics
On-premise data warehouses migrated to Redshift, Synapse Analytics, or Snowflake — with ETL pipeline modernization and BI tool reconfiguration included.
Strategy: Repurchase / Refactor
🔒
Virtual Desktop & End-User
On-premise VDI and Remote Desktop environments migrated to Amazon WorkSpaces, Azure Virtual Desktop, or Windows 365 — with identity federation and security controls.
Strategy: Replatform
Risk Management

How We Ensure
Zero Surprises

Migrations fail when risks are underestimated. Our rigorous risk management framework ensures every migration is controlled, reversible, and validated before the next wave begins.

01
Automated Dependency Mapping
Before moving anything, we use discovery tooling to map every dependency — network, application, and data — so nothing is missed or broken in migration.
02
Parallel-Run Validation
Old and new environments run simultaneously during validation windows. We only cut over after the new environment passes all performance and functional tests.
03
Defined Rollback Procedures
Every migration has a documented, tested rollback plan. If anything goes wrong during cutover, we can revert to the previous state within minutes.
04
Wave-Gated Progress
Each migration wave has formal sign-off criteria before the next begins. No wave proceeds without validated, stabilized previous-wave workloads running in production.
60+
Enterprise migrations completed without data loss or critical downtime
100%
Client migrations completed on time and within the approved budget envelope
4 hrs
Average maintenance window for critical production cutovers
35%
Average infrastructure cost reduction achieved post-migration optimization

Plan Your
Cloud Migration

Start with a free 2-week Migration Readiness Assessment — we'll deliver a prioritized roadmap, wave plan, and business case for your cloud journey.

Get Migration Assessment ← AWS & Azure

Part of the Cloud Computing service line — View full offering