Mastering technical stability: SOFTSWISS’ secret to flawless iGaming

In this article, Denis Romanovskiy, Deputy CTO at SOFTSWISS, shares insights into the importance of stability and delves into the various approaches and solutions the company implements to build resilient and scalable ecosystems.

Everyone talks about the importance of tech stability in iGaming software, but does everyone truly understand what it is based on? I’ve spent years overseeing the architecture and operations behind SOFTSWISS solutions. In my experience, technological stability is not just a technical metric – it’s the cornerstone of business success. 

In this article, I’ll share why stability matters and describe the approaches and specific solutions we employ at SOFTSWISS to build resilient and scalable ecosystems. Along the way, I’ll reflect on core decisions – why we chose certain languages and how we engineer our infrastructure.

Why stability matters

Stability in iGaming ensures that a platform – whether serving casino games or processing sports bets – remains responsive, secure, and resilient, even under unexpected stress. Every second offline means lost revenue. On large projects, losses can amount to thousands of dollars per second. But what’s even worse is that when a site crashes, even loyal players lose trust, and regaining it can take months of flawless performance.

Three pillars define stability:

• Uptime, or availability: We aim for “four nines” (99.99%) at a minimum – but for our key solutions, like the Game Aggregator, we target “five nines” (99.999%) and successfully meet this standard. 

• Performance, or latency: Players expect sub-100ms page loads and instant bet confirmations, even during peak events. Latency spikes can cause players to abandon the game and switch to a competitor's platform.

• Resilience, or incident response: You can’t avoid incidents completely. Hardware failures, software bugs, and DDoS attacks do happen. What matters is detection and resolution speed.  My teams track production incidents closely, aiming to acknowledge alerts in under 15 minutes and resolve critical issues within minutes.

How SOFTSWISS builds its stability

Unified ecosystem and integration

Our platform is a modular system with a range of products, like the Casino Platform, Game Aggregator, Jackpot Aggregator, Sportsbook, which all work together as one iGaming ecosystem. Clients can pick any piece they need and integrate it into their solution or use the entire suite. When they choose the full solution, all data (deposits, withdrawals, GGR, player segments) flows into our Integrated Client Reporting (ICR) engine. That gives a single, unified view, cuts down on manual work, and keeps things in sync across solutions, for example, a player’s loyalty tier is the same in our Casino and Sportsbook.

Effective tech stack

We mainly use open-source technologies for our infrastructure. They help us avoid vendor lock-in and run seamlessly on any cloud or traditional data centre. Although self-managed maintenance can be pricier, it’s far more cost-effective for our clients than proprietary services. Besides, open source gives us full control and fast, community-driven updates.

 We pick the best language or tool for each job:

• Ruby on Rails provides fast MVP development and quick delivery of new functionality. A vast community and rich library speed up development and troubleshooting, making our Rails-based platform one of the most stable in the industry.

• Go powers our high-performance services, such as Game Aggregator, Jackpot Aggregator, and Sportsbook. These require efficient processing, concurrency, and scalability under heavy data and traffic loads.

• React is our frontend framework of choice for its flexibility. We moved from Angular to React due to its large library pool and community support.

• Java, .NET, or Python are our supplementary languages, used for specialised components based on task complexity to deliver optimal performance.

• RabbitMQ and Kafka handle queues and messaging, which are essential for asynchronous operations and data flow.

• ClickHouse manages analytics, delivering near-real-time reports without slowing down our transactional databases.

• Kubernetes and Containers underlie all new projects, giving us consistent deployments, built-in self-healing, and identical environments from development to production.

Development pipeline

We treat every product like a factory line: design once, replicate for many. A single feature built for one client is generalised and deployed across all environments. Our automated CI/CD pipelines run unit, integration, and performance tests.

Monolith and microservices

At SOFTSWISS, we effectively combine monolithic and microservices architectures. Modular monoliths are ideal for MVPs and rapid business logic development. Microservices, on the other hand, enable parallel development and robust horizontal scaling.

Our microservices strategy focuses on handling heavily loaded modules that process a high volume of player requests and data. Meanwhile, the modular monolith remains the go-to for more basic and straightforward business logic. Both architectures, however, excel at horizontal scaling.

Hybrid‑cloud infrastructure

We keep a balance between bare‑metal reliability and cloud elasticity by defining everything in code. Stateful, mission-critical systems, like our Postgres clusters tracking player ledgers, run on dedicated servers we control. Meanwhile, stateless components, like frontends, analytics pipelines, and similar services, are deployed in AWS, GCP, or Azure. This approach gives us predictable performance for core data and the ability to scale fast.

Expanding into new regions

Our tech-centred approach helps us confidently enter new markets, adapting swiftly to local conditions without sacrificing performance. Localisation goes far beyond translating text – it demands shaping technology to match each market’s infrastructure and regulations. For example, we adapt across several layers in Brazil and South Africa.

We deploy critical services – game engines, payment gateways, and session validation – into Kubernetes clusters within local data centres or regional cloud zones. If one cluster falters, another seamlessly takes over.

To resist network latency, we use edge caches and partner with local content delivery networks. This ensures players connect to the closest server, so they never notice any outage. Additionally, our frontend compresses large assets, loads images and scripts only when necessary, and stores them in the browser cache. Even over slow connections, users enjoy swift and responsive experiences.

Regional partnerships are also an important part of business localisation. By working with regional ISPs and data-centre operators, we can restore network routes if the public cloud slows down. To meet data sovereignty rules, our Kubernetes storage classes and data engine ensure that logs and backups are kept inside the country, satisfying regulators.

By harmonising all these components, we ensure operators launching in Brazil and South Africa deliver the same seamless, low-latency performance as elsewhere.

So, how to choose a reliable provider?

Every operator’s challenge is unique: some demand fast odds updates, others value content flexibility, or require strict data sovereignty. What unites them all is the need for robust stability.

Here's what I advise when evaluating iGaming providers:

1. Demand transparency – review uptime records, SLAs, and incident metrics.

2. Inspect runbooks – ask to see how they handle real incidents and chaos tests.

3. Talk to their SREs – this will reveal the true state of monitoring and alerting.

4. Verify performance testing – ensure stress tests align with your marketing and peak traffic activity.

Tech stability isn’t a destination; it’s a matter of reliable architecture and well-established processes. A single misconfiguration or overlooked bottleneck can trigger cascading failures that threaten your GGR and undermine player loyalty.

You’re in safe hands if your provider can demonstrate the data, practices, and people behind their claims. At SOFTSWISS, that’s exactly the standard we promise to deliver.