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HR Tech4 months (phased)

Monolith to Microservices for HR Platform

Enterprise HR Tech Company

The Challenge

What we were up against

A 12-year-old Java monolith serving 50,000 daily users was reaching breaking point — weekly deployments, 8-second page loads, and a growing list of features the team was afraid to build.

The Solution

How we solved it

Incremental decomposition using the strangler fig pattern. Extracted twelve bounded contexts into independent microservices while the legacy system continued serving production traffic.

Results

What we delivered

Measurable outcomes that moved the needle.

Zero downtime during entire migration

60% reduction in p95 latency

Deploy frequency from weekly to multiple times per day

Developer onboarding time reduced from 3 weeks to 3 days

Tech Stack

Technologies used

Java 21Spring Boot 3KubernetesAWS EKSPostgreSQLKafka

Ready to build something like this?

Tell us the problem. We will scope it, price it, and deliver it in weeks -- not quarters.

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