Backend development
Backend development for scalable, robust applications
Every modern application needs a backend that still works even if there are suddenly ten times as many users online. At BAYOOTEC, we develop backend systems that remain stable under load, are secure and grow with the business.
Our developers have been programming backend systems for companies that cannot afford downtime for over 20 years. We rely on proven technologies and modern architecture approaches with measurable results.
What we implement in complex backend systems:
APIs that really work
We develop REST APIs and web services that run stably even with thousands of requests per second. We use .NET Core to build robust APIs for enterprise environments and Node.js to develop JavaScript-based services for high-concurrency scenarios.
We use GraphQL when frontends need flexible data queries. OpenAPI/Swagger documentation is standard, OAuth2 and JWT ensure secure authentication. Rate limiting and health monitoring are part of our production-ready checklist.
Clean documentation, fast response times and secure authentication are a matter of course. Other developers also enjoy working with our APIs – that is our quality benchmark.
Databases that perform
Whether Microsoft SQL Server, PostgreSQL or MongoDB – we ensure that the database remains fast even with millions of data records. Query optimization with execution plan analysis, intelligent index strategies and sophisticated normalization make all the difference.
For relational databases, we use stored procedures for complex business logic; for NoSQL systems, we optimize document structures and sharding strategies. We use Redis for caching and session management – which significantly reduces database load.
Containers and cloud deployment
Our backend services run in Docker containers and can scale automatically with Kubernetes. Zero-downtime deployments and self-healing are part of this.
As a Microsoft Azure partner, we use cloud services intelligently – managed services where it makes sense, containers where flexibility is required.
Our tech stack
Performance & security by design right from the start
We do not optimize performance retrospectively, but develop fast systems from the outset. Load testing with tools such as k6 or JMeter, database query tuning and intelligent multi-layer caching ensure consistently good response times.
Security is just as important: security by design, OAuth2/OpenID Connect for modern authentication, JWT tokens with appropriate expiry times, input validation against SQL injection and XSS. HTTPS/TLS is standard, GDPR compliance and secure data processing are part of this.
Legacy Integration & Migration
Existing systems often have to continue to run. We therefore develop integration layers that connect modern APIs with legacy systems – without disrupting ongoing operations.
