Engineering Real Resilience: An Interview with CommsHub CTO Bohdan Bulatsan

For high-growth digital platforms, message deliverability directly impacts user retention and revenue. Yet, relying on a single mega-vendor often creates a single point of failure. Bohdan Bulatsan, CTO of CommsHub, breaks down why single-vendor architectures fail, the hidden technical debt of message delivery issues and how multi-provider routing turns messaging from an operational vulnerability into a competitive advantage.

Q: Many tech leaders rely on a single global provider for critical alerts, thinking big names equal safety. Why is that a dangerous assumption?

Bohdan Bulatsan: It is a classic risk management mistake. Businesses naturally assume that signing with a billion-dollar vendor removes operational risk. But in technical infrastructure, no single provider is immune to regional outages, route degradation or sudden carrier policy changes.

When you depend entirely on one massive provider, your entire customer flow - two-factor authentication, transaction alerts, promotional campaigns - hangs by a single thread. If that route goes down for even thirty minutes during peak hours, your conversion rate drops to zero and your support team gets flooded. Size doesn't guarantee uptime; intelligent redundancy does.

Q: We all know it's bad when an OTP doesn't arrive. But what is the hidden cost of messaging failures for both the business and engineering teams?

Bohdan Bulatsan: The direct cost is just the tip of the iceberg. If a messaging provider fails to deliver a transactional alert, the immediate loss is the cost of the undelivered message plus a frustrated user. The hidden cost is far higher: lost customer lifetime value, increased churn and severe load on customer support teams who end up manually resolving issues that automated systems should have handled.

From an engineering perspective, handling vendor downtime on an ad-hoc basis burns hundreds of developer hours. When a primary provider fails, teams are forced into fire-fighting mode - scrambling to search for, evaluate, and integrate new providers from scratch. Developing these emergency integrations freezes message deliveries and drains critical engineering resources away from core product development.

Q: If relying on one big vendor is a trap, what should a smart messaging setup actually look like?

Bohdan Bulatsan: The paradigm shift is moving from vendor reliance to multi-provider architecture. Instead of putting all your traffic into one basket, you build a resilient, multi-routed system that connects several verified providers into a single interface.

If Provider A experiences route congestion in a specific region, the platform should automatically detect the delay and re-route that traffic through Provider B instantly, without manual intervention from your team. That is how you engineer real resilience. You aren't constantly fighting fires; the system handles stability behind the scenes while giving you real-time visibility into cost and performance across all channels, whether it's SMS, flash calls, or messenger apps.

Q: Integrating complex comms setups usually takes over a month, but you claim to do it in around 10 days. How do you pull that off without breaking things?

Bohdan Bulatsan: Traditional integrations drag on because teams spend weeks deciphering different vendor docs, writing custom wrappers, and troubleshooting provider-specific edge cases from scratch.

We accelerate this timeline through modern engineering practices, rigorous multi-level testing, and high-coverage architectural patterns designed specifically to orchestrate multiple providers smoothly. Combined with direct lines to vendor engineering teams and deep domain expertise in telecom nuances, we eliminate the guesswork. Developers deploy production-ready integrations in days, while marketing and finance gain instant, centralized visibility through a unified dashboard. Reducing integration time from 45 days to under 10 days isn't just about launching faster - it means engineering teams can focus on product innovation rather than spending weeks wiring up communications infrastructure.

Q: What is the main advice you’d give CTOs looking to future-proof their messaging infrastructure as they scale globally?

Bohdan Bulatsan: Stop treating messaging as a simple utility and start viewing it as critical infrastructure. As you scale into new regions, you will face different regulatory environments, local carriers, and deliverability challenges.

Build flexibility into your stack from day one. Ensure you aren't locked into rigid vendor contracts that limit your ability to switch or combine providers. The future of digital communication belongs to companies that can launch in a new market, adapt their delivery routes instantly, and maintain complete financial transparency - all without touching their core codebase.

Single-vendor dependencies create unnecessary risk and accumulate technical debt. Shifting to an automated multi-provider architecture ensures complete deliverability, rapid integration and full financial transparency - allowing engineering teams to focus on building core product features rather than fixing broken infrastructure.