The most expensive part of a legacy migration isn't the build — it's the downtime and data loss when it goes wrong. We start with a full audit of your current system: undocumented business logic, database relationships, and integrations that nobody remembers.
We use a phased strangler-fig approach: new modules replace old ones incrementally while the legacy system stays live. You never flip a switch and hope. Each phase ships, gets validated, and only then do we decommission the old code.
25+ legacy systems migrated: PHP monoliths to Node.js microservices, Oracle to PostgreSQL, on-premise to AWS. The stack changes — the discipline of zero data loss and zero customer-facing downtime stays constant.
What we build and the tools we use to build it
Break down legacy monoliths into scalable, independently deployable microservices.
Migrate from legacy databases to PostgreSQL, MongoDB, or cloud-native solutions.
Move on-premise applications to AWS, GCP, or Azure with improved scalability.
Implement modern authentication, encryption, and security best practices.
10x faster load times through modern frontend frameworks and optimized backends.
Phased approach allowing continuous operation during the transition period.
Four phases. Fixed scope. You see working software every week.
We map what you actually need — not what sounds right in a doc. Scope, dependencies, and a week-by-week plan agreed before we write a line of code.
Architecture first. We spec the data model, API contracts, and component structure. Changes here cost hours — changes in week three cost weeks.
Weekly deploys to staging. You see working software every 7 days, not at the end of the project. If something's off, you catch it early.
We ship, then we document. You get production access, runbooks, and a handoff call. Support retainers available if you want us to stay involved.
You have direct access to the engineer building your product — not an account manager. Weekly demos, async Slack channel, fixed price. No surprises on the invoice.
What's different about working with us
Strategic phased approach ensures your business continues operating throughout the migration.
Successfully migrated 25+ legacy systems across fintech, healthcare, and enterprise sectors.
We document and preserve critical business logic while modernizing the technical foundation.
Complete documentation and team training to ensure smooth handoff and maintenance.
Common questions about this service
Practical write-ups on the problems this work solves, from the AlgoSmiths blog.