Leading architecture and development across several enterprise platforms in the test management domain. The flagship is Qaron, a test management platform for manual and automated QA, which I architected from greenfield design to deployment across multiple clients.

• Architected the Qaron test management platform from greenfield design through to client deployment.
• Reactive Java microservices (Spring WebFlux) with gRPC communication between services.
• Golang orchestration layer that automates deployment to Kubernetes, Docker and OpenShift.
• GraphQL federation gateway with real time subscriptions, plus Netflix DGS GraphQL to gRPC integration.
• Angular frontend on NgRx Signal Store and PrimeNG, with dynamic test scheduling on GitLab CI/CD.
• Full observability stack (Loki, Grafana, Prometheus) and a high performance Rust service ingesting logs and metrics into ClickHouse.
• AI assisted test generation from business requirements, with code validation at merge request level and a human in the loop.

Impact

• Delivered a production grade enterprise platform at startup velocity.
• Architecture documented with the C4 model and adopted across platform modules.
• Led a three person core team establishing shared standards and patterns across services.

Technologies: Java, Kotlin, Spring WebFlux, Go, Python, Rust, gRPC, GraphQL, Angular, NgRx, RxJS, TypeScript, PrimeNG, Sass, Tailwind CSS, Kubernetes, OpenShift, Docker, Harbor, Terraform, Helm, Argo CD, HashiCorp Vault, PostgreSQL, ClickHouse, RabbitMQ, MinIO, Loki, Grafana, Prometheus, Traefik, Keycloak

Designed and built a luxury limousine booking platform from the ground up, from requirements and system architecture through to deployment.

• Complete booking flow with real time availability and a responsive Angular (Material) frontend.
• Multiple payment gateways: TatraPay, CardPay and GooglePay, plus GoSMS for SMS confirmations.
• GCP Directions API for route optimization and pricing, GCP Places API for location autocomplete.
• Firebase push notifications for booking updates, Django REST backend with async task processing.
• PDF generation for invoices and booking confirmations, and MJML email templates.

Impact

• Shipped a complete end to end platform solo, from requirements to deployment.

Technologies: Python, Django, DRF, Angular, TypeScript, NgRx, GCP, Firebase, Docker, PostgreSQL, MJML

Technical consulting and developer mentoring for enterprise portal development.

• Pair programming sessions with the development team.
• Consulting on feature integration and architecture decisions.
• Code reviews and best practices guidance.
• Helped the team adopt new technologies and patterns.

Impact

• Raised code quality and helped the team adopt new patterns across Java, Spring and Angular.

Technologies: Java, Spring, Angular.js, Oracle SQL

Enterprise integration specialist for the banking sector, primarily on the ČSOB NIP integration platform.

• Integration with T24, THUB and Exponea.
• Designed and built integration prototypes on IBM MQ and Apache Camel.
• Created XSD schemas and OpenAPI/Swagger specifications for third party systems.
• Implemented REST and SOAP services for external communication.
• Built KeyCloak SSO across multiple services and managed distributed transactions with Atomikos.

Impact

• Established reusable enterprise messaging and API documentation patterns.
• Implemented banking grade security standards across the integration services.

Technologies: Java, Spring, Apache Camel, IBM MQ, KeyCloak, PostgreSQL, Atomikos, Swagger/OpenAPI

Led a development team and drove technical improvements for a land registry portal.

• Managed a team of junior and senior developers.
• Code refactoring initiatives and technical debt reduction.
• Business logic optimization for improved performance.
• Architecture decisions, technology recommendations, code reviews and mentoring.

Impact

• Reduced technical debt and improved performance of the portal.
• Kept the team productive through refactoring and mentoring.

Technologies: Java, Spring, Angular.js, Oracle SQL, Maven

Waste management portal for the Ministry of Economy. Built new frontend components and owned design and analysis for the required issues.

• Created new frontend components for the portal.
• Design and analysis for the required issues.
• Created and applied own solutions for the required issues.

Impact

• Delivered new portal components and solutions for the assigned issues.

Technologies: Java, JavaScript, Angular.js

Full stack development for Liferay based enterprise portals.

• Developed new frontend components and UI features.
• Design and analysis for new feature requirements.
• Maintenance and optimization of the existing codebase.
• Selenium test automation.

Impact

• Extended the Liferay portal and automated regression testing with Selenium.

Technologies: Java, Spring, Liferay, Hibernate, jQuery, PostgreSQL, Velocity

Built prototypes and production systems for a fintech client, a microloan platform prototype for Ferratum Group.

• Built prototypes and production systems for fintech client Ferratum Group.
• Created a prototype web application for a loan and credit workflow.
• First hands on experience with reactive frontend patterns.

Impact

• Delivered a working loan process prototype and picked up reactive frontend patterns.

Technologies: Angular, GraphQL, Node.js

Worked on the ETS Biometric project, an identity verification platform on a microservice architecture.

• Maintenance and development of new functionality on the ETS Biometric platform.
• L2/L3 programmer support for production issues.
• Managed two web applications and their microservice architecture.
• React.js and Redux frontend, Spring Boot microservices, Couchbase NoSQL, RabbitMQ, Docker on AWS.

Impact

• Kept two production biometric apps and their microservices healthy across L2/L3 support.

Technologies: Java, Spring Boot, React, Redux, Couchbase, RabbitMQ, Docker, AWS

Led the technological transformation of a core life insurance web application, moving a legacy desktop only system into a modern, responsive, mobile first platform.

• Rebuilt the UI layer for performance and accessibility across smartphones, tablets and desktop.
• Engineered adaptive UI logic that scales across breakpoints without losing layout density or functionality.
• Preserved the heavy Java and Ember.js business logic through a zero downtime visual migration.

Impact

• Unlocked mobile channels for insurance agents and end users.
• Delivered a reusable UI component library that cut later frontend development time.
• Kept full system stability through a complete frontend paradigm shift.

Technologies: Ember.js, JavaScript, SASS, CSS3, HTML5, Java

Built prototypes and production systems for enterprise clients (the DockitIn mobile backend and push notification optimization).

• DockitIn: designed and built the API between client and server for the mobile backend.
• Database schema design and JSON transformations.
• Image processing and storage solutions.
• Frontend component development with Apache Wicket.

Impact

• PNP: optimized the push notification delivery system and improved performance of the existing codebase.

Technologies: Java, Spring, Wicket, Hibernate, QueryDSL, Oracle SQL

Started my professional career on Finantix, a global enterprise banking platform, digitizing and automating credit and loan management workflows.

• Implemented and extended steps within the digital credit approval workflow to drive automation.
• Adapted business and orchestration logic to changing legislative and banking compliance requirements.
• Integrated localization in multiple languages to enable deployment across global markets.
• Developed advanced print and contract templates using XSLT transformations.

Impact

• Contributed to the automation of core banking operations.
• Turned complex business and legal rules into reliable, client facing banking documentation.

Technologies: Java, Finantix Framework, XSLT, Oracle SQL, XML, BPM