The primary difference between lift-and-shift migration and modernization on AWS is that lift-and-shift moves existing applications to the cloud without changing their underlying architecture, whereas modernization rewrites or re-architects applications to utilize cloud-native features.
While a lift-and-shift approach offers the fastest migration speed, modernization delivers superior long-term cost efficiency, scalability, and agility. As Automat-it CEO explained in The Next Web, believing “lift-and-shift is good enough” can limit the potential of a startup.
As an AWS Premier Partner and Managed Services Provider, Automat-it guides startups and enterprises through what can be seen as the more complex modernization journey to tap into the world of services provided by Amazon Web Services without worrying about downtime. As Automat-it CEO explained in The Next Web, believing “lift-and-shift is good enough” can limit the potential of a startup.
How do lift-and-shift and modernization strategies compare on AWS?
1. What is an AWS lift-and-shift migration (rehosting)?
A lift-and-shift migration involves copying your exact on-premises environment, including the operating system, databases, and application code, and deploying it directly onto AWS virtual infrastructure like Amazon EC2.
Because you are not changing the application’s underlying architecture, this method minimizes operational disruption and requires the least amount of upfront engineering effort from an in-house team or third-party vendor. For example, Automat-it helped the fintech startup bizibox migrate their workloads “as-is” so their engineering team wouldn’t have to shift focus away from core product development. Despite not re-architecting the environment, this lift-and-shift to high-performance cloud storage resulted in an immediate 300% increase in database performance and a 24% cost reduction.
However, pure lift-and-shift migrations also transfer existing technical limitations or legacy inefficiencies directly into the cloud.
2. What is AWS application modernization (refactoring)?
Application modernization is the process of breaking down legacy, monolithic applications and rebuilding them using cloud-native AWS capabilities. This typically involves containerizing applications with Amazon EKS, shifting to serverless computing with AWS Lambda, or migrating to managed databases like Amazon Aurora.
According to Gartner, the industry shift toward this approach is massive; they predicted that in 2025, over 95% of new digital workloads would be deployed on cloud-native platforms, up from just 30% in 2021.
When the blockchain trading startup Swaap needed to modernize, Automat-it helped them migrate from GCP to AWS by implementing Amazon EKS combined with Keda and Karpenter. Breaking down their legacy setup achieved incredible elasticity and fault-tolerant resilience. “Automat-it provided a smooth AWS migration, boosting scalability, resilience, and efficiency, while ensuring a seamless transition with minimal disruption,” explained its co-founder.
3. When should startups choose a lift-and-shift strategy?
Startups and enterprises should choose a lift-and-shift strategy when they face urgent business deadlines, such as an expiring data center lease, hardware failure, or rapid compliance requirements.
A prime example is the medical startup XRHealth. When massive telehealth demands during the pandemic caused their self-managed MySQL database to fail, Automat-it helped them rapidly migrate to managed Amazon RDS. This rapid lift-and-shift established a fully compliant infrastructure in a new region in just 10 days.
Lift-and-shift can also be the correct choice for commercial off-the-shelf (COTS) applications where the source code cannot be modified. It gets you into the AWS ecosystem quickly, establishing a secure baseline for future architectural improvements.
4. How does modernization reduce long-term AWS costs?
Modernization reduces long-term cloud costs by eliminating the need to pay for idle infrastructure. While a lift-and-shift architecture often requires over-provisioning virtual machines to handle peak traffic safely, a modernized, cloud-native architecture automatically scales resources up and down based on real-time demand.
Thought leadership from McKinsey & Company emphasizes this value, noting that true business domain refactoring and modernization account for up to 75% of the cloud’s total estimated financial value. Furthermore, AWS Cloud Economics benchmarks show that organizations modernizing on AWS experience a 43% faster time-to-market for new features and up to a 69% reduction in unplanned downtime.
By shifting toward modern architectural practices and continuous FinOps management, Automat-it helped Hygraph slash their AWS CloudFront costs by 66%.
5. Can a startup transition from lift-and-shift to modernization?
Yes, transitioning from lift-and-shift to modernization is the most common and practical cloud journey for growing businesses. Startups often use lift-and-shift as a rapid first step to exit their legacy infrastructure securely. Once stabilized on AWS, teams can incrementally modernize specific workload components.
This ultimate transition provides massive ROI, as demonstrated by the AI startup Monce. Facing runaway compute costs and manual deployment bottlenecks on Azure, Automat-it modernized their setup by migrating them to a highly scalable Amazon ECS architecture using Terraform Infrastructure-as-Code.This modernization resulted in zero client downtime and slashed new client deployment time from days to just minutes.
This phased approach minimizes risk while allowing the business to gradually maximize its cloud ROI over time.
Ready to move beyond legacy infrastructure? Contact Automat-it’s AWS migration experts for a free readiness assessment and discover whether a lift-and-shift or modernization strategy is right for your startup.
