Portfolio

References from projects we've delivered.

• Custom B2B Webshop

  it.hu

  Full-stack B2B webshop with catalog management, partner rules, multi-currency support, PunchOut integration, and observability.

  PythonNext.jsReactPostgreSQLRedisDockerPrometheusGrafanaAlloyLokiOpenTelemetryArqTailwind

• QR Code Security Hardening with JWKS

  Elevate Healthcare

  Hardened an existing QR-code based solution with JWKS signing for trusted data transport.

  JWKS.NETIonicAngular

• Search and Product Recommendations

  OTP Fizz

  Improved search performance and built CMS-driven product recommendation UI, with clearer Google Tag Manager measurement.

  NestJSTypeORMNext.jsfastifyTailwindPrismaKafkaAzureDockerOpenTelemetryGoogle Tag Manager

• Video Identification Reliability and Monitoring

  FaceKom

  Stabilized a video-based customer identification service with proactive monitoring and clearer incident diagnostics.

  Express.jsSocket.ioRabbitMQDockerSequelizeBootstrap

• Cloud High Availability and Security

  Elevate Healthcare

  Security updates and a shift to scalable, high-availability solutions in the existing cloud environment.

  Azure AKSKubernetesHelmDockerAzure DevOpsArgoCDPrometheusGrafanaLokiOpenTelemetryRabbitMQ

• Architecture and Technology Consulting

  Elevate Healthcare

  Architectural, development, and technology advisory — evaluating options, measuring trade-offs, and guiding decisions.

• Cloud Animation Platform

  Inwedio

  AWS infrastructure, CI/CD, UI and API delivery, plus browser and cloud-based video recording and conversion.

  AngularNgRxNestJSAWS CognitoAWS LambdaAWS S3AWS NeptuneAWS CloudFrontAWS Route53TerraformDockerJestOpenAI APIAzure ML StudioFFMPEGGitHub Actions

• Billing Integration Microservice

  PlaccOn

  Isolated billing microservice with Billingo API, company registry integration, and monitorable metrics.

  NestJSTypeORMRabbitMQBillingo API

• QR Code Restaurant Ordering

  PlaccOn

  QR-based restaurant ordering with menu sync, order processing, and business plus technical monitoring.

  NestJSWebSocketNXOpenAPI / SwaggerOpenTelemetryPrometheusGrafanaJestYii

• Engineering Company Landing and Quotes

  RigorTech Kft.

  Landing page for a design and construction engineering firm, later extended with a custom quote request system.

  Next.jsReactTailwindNestJSAWS API GatewayAWS LambdaGitHub ActionsGitHub Pages

• Cash Register Integration

  PlaccOn

  Web-to-POS integration for automatic receipts over serial and Bluetooth, across desktop and mobile restaurant apps.

  JavaScriptToDesktopConvertifyAndroidiOSElectron

• Fiscal Printing Integration

  PlaccOn

  Fault-tolerant fiscal printing for restaurants — active in 100+ locations with millions of print operations.

  NestJSRabbitMQSocket.ioJWKS / JWTOpenAPI / Swagger.NET FrameworkOpenTelemetryPrometheusGrafana