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 across macOS, Windows, iOS, and Android from a unified codebase replacing the four-platform fragmentation that used to make every release four releases.
Operational cost reduced by roughly 25% through auto-scaling, commitment-based pricing, and serverless logic. so growth no longer translates one-for-one into infrastructure spend and the platform's unit economics finally support the product roadmap.
Incident response roughly twice as fast through Systems Manager runbooks that detect and remediate routine outages without paging the on-call. so customer-visible downtime drops on the cases that used to define mean time to recovery.
Downtime materially reduced across the platform thanks to federated architecture and automated remediation. so a problem in one workload no longer takes the rest of the service down with it.
Engineering capacity redirected from operations to product, freeing the team that used to hand-manage bare-metal infrastructure to ship the features. that gave 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, Application Development 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.