Services

Legacy App Modernization

Move off an aging system in stages, with your business running the whole way through.

We help organizations escape the constraints of aging technology by systematically modernizing legacy applications. Whether you are running a monolithic PHP application, a desktop-bound .NET system, or an outdated Java platform, we plan and execute migrations that preserve your business logic while unlocking modern performance, scalability, and developer productivity. Our incremental approach minimizes risk and keeps your business running throughout the transition.

What working with us includes

Phased

Migrations run in stages, with rollback at every step

2-week

Sprints, each ending in a working demo

100%

Code and IP ownership, yours from commit one

30-day

Post-migration support included

Scope

What this covers

Two-week sprints, a Loom demo at the end of each one, and your code in your repo from day one.

Codebase Assessment & Roadmap

We analyze your legacy codebase, document business logic, identify technical debt, and produce a prioritized modernization roadmap with clear milestones and risk mitigation strategies.

Strangler Fig Migration Pattern

We incrementally replace legacy components with modern services, routing traffic between old and new systems so your application remains operational throughout the migration.

Database Migration & Optimization

We migrate data from legacy databases to modern systems with schema redesign, data cleansing, and zero-downtime cutover strategies that preserve data integrity and relationships.

API Layer Introduction

We build API gateways that abstract legacy interfaces, enabling modern frontends and third-party integrations to communicate with your systems through clean, documented endpoints.

Cloud Migration & Containerization

We containerize applications with Docker, orchestrate with Kubernetes, and migrate from on-premise servers to cloud platforms with auto-scaling and managed services.

Testing & Quality Assurance

We build comprehensive automated test suites around modernized components, establishing regression safety nets that give your team confidence to continue evolving the system.

Our Process

How We Work

Technical Discovery & Assessment

We audit the legacy system's architecture, codebase, dependencies, and infrastructure to understand the full scope of technical debt and identify the highest-priority modernization targets.

Strategy & Architecture Design

We design the target architecture, select the modernization approach for each component, plan the migration sequence, and define success criteria and rollback strategies.

Incremental Migration

We migrate components systematically, deploying modern replacements alongside the legacy system, validating correctness, and gradually routing traffic to the new services.

Decommission & Knowledge Transfer

Once all components are migrated and validated, we decommission legacy infrastructure, complete documentation, and train your team on the modern system's architecture and operations.

Technology

Tech Stack

ReactNode.jsDockerKubernetesPostgreSQLAWSTerraformTypeScript

The businesses we build software for

A few of the teams we work with — manufacturing, logistics, field services and SaaS, across India, the UK and the US.

Send project details

Tell us what you're building. An engineer reads it and replies within 24 hours.

What you can expect

A reply within 24 hours from an engineer, not a salesperson

30 minutes on a call — no pitch, no obligation

Mutual NDA before we discuss scope

You keep the plan either way

FAQ

Frequently Asked Questions

We use the strangler fig pattern to replace components incrementally while the legacy system continues operating. At every stage, both old and new systems run in parallel with automated validation, so there is no big-bang cutover risk.

Timelines depend heavily on system complexity. A focused modernization of a single application typically takes 4 to 9 months, while large-scale enterprise modernizations may span 12 to 18 months with phased delivery of value along the way.

This is very common. Our team uses code analysis tools, stakeholder interviews, and behavioral testing to reverse-engineer business logic and document it before migration begins. This documentation becomes a valuable asset regardless of the modernization approach.

We almost always recommend incremental migration over full rewrites. Rewrites carry high risk, often take longer than planned, and may lose subtle business logic. Incremental modernization delivers value sooner and allows course correction based on real results.

Yes. We handle the full journey from on-premise to cloud, including containerization, infrastructure-as-code setup, managed service adoption, and security hardening. We choose the right cloud services to optimize cost, performance, and operational simplicity.

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Need Legacy App Modernization? Talk to an engineer.

30 minutes with an engineer, not a salesperson. You'll leave with a plan — even if we're not the right fit.

See our work