A cross-platform consumer email client serving subscribers globally came to Armakuni for consumer email client modernization across four platforms: unified codebase, retention features, elastic sync, automated recovery.
The challenge
A platform-rescue engagement that grew into ongoing engineering ownership. Armakuni was brought in to evaluate whether Newton could be saved, then rebuilt the product and the platform underneath it, and now runs the architecture that powers the entire client experience.
Scale: 13M+ emails synced daily across macOS, Windows, iOS, and Android. High-volume consumer mail processing across crawl, action, notification, and API workloads.
What we built
Armakuni delivered consumer email client modernization across four platforms: unified codebase, retention features, elastic sync, automated recovery. The engagement ran as multiple fixed-scope SOWs covering product feature engineering, infrastructure containerization on Amazon EKS, cost optimization, and incident response automation.
The outcomes
5 measurable outcomes shipped across the engagement. The ones that moved the business the most:
13 million emails synced daily from a single unified codebase. One codebase now serves macOS, Windows, iOS, and Android, replacing the four-platform fragmentation that turned every release into four releases.
Operational cost reduced by roughly 25%. Auto-scaling, commitment-based pricing, and serverless logic mean growth no longer translates one-for-one into infrastructure spend, and unit economics now support the roadmap.
Incident response roughly twice as fast. Systems Manager runbooks detect and remediate routine outages without paging the on-call, cutting customer-visible downtime on the cases that used to define recovery time.
Downtime materially reduced across the platform. Federated architecture and automated remediation mean a problem in one workload no longer takes the rest of the service down with it.
Engineering capacity redirected from operations to product. The team that once hand-managed bare-metal infrastructure is now free to ship the features that give users a reason to stay.
Built on AWS
The production environment runs on 13 first-party AWS services. Delivered under our AWS Migration and Modernization, DevOps competencies.
What's next
Expanding serverless coverage, deepening federated resilience across additional regions, and exploring AI-assisted email triage and smart reply suggestions on the existing platform.