Flexible architecture meets hybrid infrastructure: How SOFTSWISS helps scale brands globally

In today’s iGaming landscape, performance and reliability are non-negotiable. Operators face the constant challenge of delivering seamless gameplay and uninterrupted services, even during sudden traffic surges or complex promotional campaigns. Behind the scenes, technology partners must ensure that scalability, speed, and resilience are built into every layer of the infrastructure.

SOFTSWISS has developed a reputation for doing just that, combining flexible architecture with real-time monitoring and a global infrastructure strategy. In this interview, Denis Romanovskiy, Deputy CTO at SOFTSWISS, explains how they balance monoliths and microservices, manage unpredictable traffic spikes, and support operators entering fast-growing markets such as Latin America and Africa.

How do you ensure each of your clients gets predictable performance and resilience even during traffic spikes or code issues, without impacting the rest of the portfolio?

We give each brand its dedicated infrastructure and server set, so they run independently and securely. In practice, clients rarely use more than  30% of their allocated capacity. So, they have plenty of headroom for sudden spikes and even some right to make a mistake in code without risking stability. 

Business-critical components are fully separated per brand, while a few non-critical pieces can be shared. Because resources are isolated, if one client faces a traffic surge or a software bug, it will not affect others – no cascading failures and no collateral damage.

And when that built-in reserve isn’t enough – say a brand’s promo goes viral – how do you scale in the moment? Do you rely on autoscaling or something else?

Autoscaling isn’t the best solution for sudden and short-time spikes. It won't keep up if a promotion goes viral and takes off faster than expected. In such cases, our  SRE team watches the system in real time and adds extra capacity on the spot. We keep a “warm reserve” ready to go so we can double resources within minutes. Moreover, before expanding big promos globally, we launch them in smaller markets or off-peak and check all the indicators. This way, we keep everything running smoothly without risking downtime.

What common technical traps stop iGaming brands from scaling, and how does SOFTSWISS help avoid them?

The biggest trap is sticking with a massive monolith as you grow or vice versa – launching on a full-blown microservices stack before you really need it. A big monolith slows down every deployment, while one service failure can take the whole site offline. 

At SOFTSWISS, we build a flexible architecture that embraces both strategies. We start with a modular monolith: everything’s together for fast development, but split into logical modules like games, bonuses, back-office, and reporting. As traffic picks up, we extract the busiest parts into dedicated microservices so each can be scaled and deployed independently.

This “monolith-first, microservices-later” approach gives brands a rapid time to market at launch and a clear migration path when they mature.

And what about performance around the world? How do you keep response times low across different geos? 

Our hybrid strategy starts with regional points of presence, whether it’s Europe, LatAm, or South Africa. We use a geo-distributed infrastructure – setups are placed in the regions where users are located, which improves product performance.

For the core services, we run Kubernetes clusters on both Oracle Cloud infrastructure and our own data centres. That way, we have the flexibility to switch providers or fall back to our hardware. This mix ensures operators never overpay for peak capacity in every region, and that the platform stays online even if one cloud provider has an outage.

Can you walk us through how you mix monoliths and microservices for fast releases and long-term scaling?

Sure. We start with a clean, well-structured monolith, with shared libraries for logging, metrics, and database access. That gives us quick development cycles and simple deployments. As traffic grows, we identify the parts that carry the highest load or most critical data and turn them into standalone microservices. 

For example, the tournament service handles leaderboards and brackets so it can scale independently. The registration service is built to absorb massive sign-up bursts – up to thousands of new players in seconds. And the KYC connector gives us a flexible integration layer for regional identity providers, so we can add or switch vendors in Africa, Brazil, or Europe without touching the core application.

This way, operators get the rapid feature delivery of a monolith at launch, plus the clear upgrade path to microservices when they need it.

For brands expanding into new regions like LatAm or Africa, what main “life hacks” would you share?

First, build an edge-first frontend – lazy load assets, compress images, cache aggressively in the browser. Players on slow connections still get a snappy experience. Second, embed circuit breakers everywhere – payment APIs, KYC calls, jackpot services – so if one external system lags, the rest of your platform keeps running. Third, set up local data zones: deploy session and user-profile replicas in-region for low latency and to meet data-residency rules, then replicate back to the central cluster asynchronously. These steps turn what could be a system-crashing spike into just a routine everyday task.