AI-Accelerated Legacy Migration
For teams stuck on aging systems, we move you off legacy in controlled, low-risk stages, with no downtime
Get a migration roadmap in 2 weeks. AI accelerates code analysis, dependency mapping, testing and documentation, while senior engineers plan and validate every migration stage before it reaches your live product.
Know what you’re migrating before you start
Legacy systems get more expensive and riskier every year. They slow releases, block new features, cost more to run, and get harder to secure and staff. Migrating off them is necessary, and doing it in controlled stages is what keeps it low-risk.
The risk in a migration is rarely one outdated technology. It’s the dependencies around it: data, integrations, business logic and workflows that still need to work throughout. So we map your system before implementation starts.

Understand how the existing system is structured and which components can be migrated independently.
Map APIs, external services and internal dependencies that could be affected by migration.
Identify what needs to move, what needs to be transformed and which critical logic must be preserved.
Establish how migrated functionality will be compared with the existing system before traffic or users are moved.
Plan dependencies, migration and decommissioning so old systems can be safely switched off.
Define recovery options for critical migration stages before implementation begins.
How legacy migration works
Start with a 2-week assessment, then migrate in controlled stages.
Phase |
Timeline |
Pricing |
What happens |
|---|---|---|---|
| Assessment & Roadmapping | 2 weeks | $7,900 fixed | We analyze your legacy system, define a phased migration roadmap and build a working prototype to validate the proposed approach on a representative component. |
| First Migration Wave | 4–8 weeks | Fixed scope | We migrate the first prioritized components, validate them against the existing system and prepare the next migration stages. |
| Legacy Decommissioning | Incremental Migration | Ongoing | We continue through the roadmap step by step, moving remaining functionality, data and dependencies while the existing system continues to operate where needed. |
Each migration stage includes validation and rollback planning before changes reach the live system.
Continue with Touchlane within 45 days and we credit 100% of your $7,900 assessment fee toward implementation.
For 30 days after each migration stage goes live, we fix any defects or issues in what we moved, at no extra cost, so the migrated functionality holds up under real-world use.
- Fixes for defects and issues in what we migrated
- Stability and performance problems
- Anything that surfaces once the migration is live
What can be migrated
Your migration roadmap defines what moves, in what order and which parts of the existing system can remain in place during each stage.
Every migration stage is built to reduce operational risk
Before changes reach production, we put the safeguards in place to validate the migration, detect issues and recover if something goes wrong.
Rollback strategy
Define how each critical migration step can be reversed if the expected result isn’t achieved.Critical-flow regression testing
Test the business-critical workflows that must continue working before and after each migration stage.Migration monitoring
Track system behavior during and after migration to identify issues as they appear.Post-migration validation
Verify migrated functionality, data and integrations before the legacy component is retired.Our Success story
A regional insurer running policy administration and claims on a decade-old monolith that had become expensive to maintain and impossible to extend.
Before
The platform handled live policies and claims every day, so any migration carried real business risk. Earlier rewrite proposals had stalled because leadership had no proof a new approach would actually work, and no one could guarantee the system would stay available during the move.
What we built
A two-week assessment produced a phased migration roadmap, so leadership could see exactly how the move would work before committing. We then migrated in controlled waves, choosing rehost, replatform or refactor per component, with a Safety Pack of rollback, regression testing and monitoring behind every stage.
After
The insurer moved off the monolith in stages with the platform staying available throughout, and each wave shipped with a tested rollback path. Migrated modules cut maintenance effort significantly, and the migration ran with zero downtime across every wave.
Why Touchlane for Legacy Migration
Why Touchlane for Legacy Migration
Senior engineers from assessment to migration
The engineers who analyze your legacy system stay involved as the migration moves into implementation.
Experience across legacy and modern technology stacks
We work across existing codebases, infrastructure, databases and integrations – and build the modern architecture they need to move into.
One team across the migration
Architecture, backend, mobile, cloud, data and QA expertise stay within one delivery setup instead of being split across multiple vendors.
Migration decisions based on the existing system
We assess the actual codebase, dependencies and critical business flows before deciding what should be rehosted, replatformed, refactored or rebuilt.
How to get started with migration
A low-risk way to start, from a 2-week assessment to a clear plan.
Get your migration plan
Tell us about the legacy system you need to migrate and what you want to move to. We'll assess your current system and deliver a phased migration roadmap you can act on.
FAQ
We are eager to clarify anything that you might be interested in.
The assessment and roadmap take two weeks. After that, timelines depend on the size and complexity of your system: a first migration wave often runs a few weeks, and larger systems continue in controlled stages on a milestone or monthly basis. We size the plan to your system rather than a fixed deadline.
We analyze your legacy system, define a phased migration roadmap and build a working prototype that validates the approach on a representative component. If you continue with us within 45 days, we credit the full assessment fee toward implementation.
We migrate in controlled stages and validate each one against the existing system before it reaches production, with a Safety Pack of rollback, regression testing and monitoring behind every stage. If a step doesn’t behave as expected, we roll it back.
No. We migrate in controlled stages, validating each one against the existing system and keeping a tested rollback path, so critical systems stay available throughout.
A description of the legacy system you need to move and what you want to move to, plus access to your codebase, architecture and dependencies for the assessment. We map it and come back with a phased roadmap and a validated approach.
We assess the actual codebase, dependencies and critical business flows first, then choose the right strategy for each component: rehost, replatform, refactor or rebuild. AI accelerates code and dependency analysis, while senior engineers make and validate every critical decision.
Yes. We sign an NDA up front, before we discuss your system. We work in your existing codebase, and every engagement is covered by a formal contract, so your source code and all IP rights stay yours, with no vendor lock-in.