
Jochen Mader developed and maintained the hivemq/hivemq-edge platform, focusing on scalable API design, robust release management, and deployment automation. He engineered REST APIs using Java and OpenAPI, modernized CI/CD pipelines with GitHub Actions, and streamlined configuration through Helm and Kubernetes integration. His work included refactoring protocol adapters for maintainability, implementing dynamic reloading for zero-downtime updates, and enhancing security with secret-based authentication. By aligning versioning and automating release workflows across repositories, Jochen improved deployment reliability and reduced manual intervention. His contributions demonstrated depth in backend development, DevOps, and configuration management, resulting in a stable, production-ready industrial IoT solution.

October 2025 monthly summary: Delivered significant feature work and release readiness across hivemq/helm-charts and hivemq-edge, focusing on security/config clarity, API modernization, and CI/CD efficiency. Key outcomes include improved secret handling in Pulse, clearer Helm chart usability, a comprehensive OpenAPI schema for HiveMQ Edge REST API, stabilization of release versioning to 2025.16, and on-demand CI checks enabling validation without pushes. These efforts reduce time-to-value for users and improve maintainability, with hands-on skills demonstrated in Helm/Kubernetes practices, OpenAPI spec design, release engineering, and GitHub Actions.
October 2025 monthly summary: Delivered significant feature work and release readiness across hivemq/helm-charts and hivemq-edge, focusing on security/config clarity, API modernization, and CI/CD efficiency. Key outcomes include improved secret handling in Pulse, clearer Helm chart usability, a comprehensive OpenAPI schema for HiveMQ Edge REST API, stabilization of release versioning to 2025.16, and on-demand CI checks enabling validation without pushes. These efforts reduce time-to-value for users and improve maintainability, with hands-on skills demonstrated in Helm/Kubernetes practices, OpenAPI spec design, release engineering, and GitHub Actions.
September 2025 delivered a release-focused velocity across hivemq-edge and helm-charts, centering on a stable release line, API surface enhancements, and deployment readiness. Key outcomes include stabilizing Release 2025.14 by converting from snapshot to stable and updating version references, introducing OpenAPI 3.0.1 for the HiveMQ Edge REST API with authentication, data hub management, and system metrics (bumped to 2025.15-SNAPSHOT), and updating deployment manifests via Helm chart version bumps. Pulse Activation Token support was added to the Helm chart, introducing a Kubernetes Secret and StatefulSet integration with accompanying tests. While no explicit bug fixes are listed in the provided data, the release-stabilization and API/deployment improvements substantially enhance reliability, API usability, and customer-time-to-value. Overall impact: improved release reliability and velocity, consistent deployment across repos, and stronger security/operational readiness through secret-based token management. Technologies demonstrated include OpenAPI 3.0.1, REST API design with authentication, Kubernetes Secrets, StatefulSet configuration, Helm chart versioning, and release automation/testing.
September 2025 delivered a release-focused velocity across hivemq-edge and helm-charts, centering on a stable release line, API surface enhancements, and deployment readiness. Key outcomes include stabilizing Release 2025.14 by converting from snapshot to stable and updating version references, introducing OpenAPI 3.0.1 for the HiveMQ Edge REST API with authentication, data hub management, and system metrics (bumped to 2025.15-SNAPSHOT), and updating deployment manifests via Helm chart version bumps. Pulse Activation Token support was added to the Helm chart, introducing a Kubernetes Secret and StatefulSet integration with accompanying tests. While no explicit bug fixes are listed in the provided data, the release-stabilization and API/deployment improvements substantially enhance reliability, API usability, and customer-time-to-value. Overall impact: improved release reliability and velocity, consistent deployment across repos, and stronger security/operational readiness through secret-based token management. Technologies demonstrated include OpenAPI 3.0.1, REST API design with authentication, Kubernetes Secrets, StatefulSet configuration, Helm chart versioning, and release automation/testing.
July 2025 monthly summary focusing on key accomplishments across hivemq-edge and hivemq/helm-charts. Highlights include release finalization for 2025.11, OpenAPI schema updates, Helm chart version bump to 2025.11, addition of optional configuration fragmentation compression, and test suite cleanup to reduce maintenance.
July 2025 monthly summary focusing on key accomplishments across hivemq-edge and hivemq/helm-charts. Highlights include release finalization for 2025.11, OpenAPI schema updates, Helm chart version bump to 2025.11, addition of optional configuration fragmentation compression, and test suite cleanup to reduce maintenance.
June 2025 monthly summary for hivemq-edge and helm-charts. Delivered stable release versioning, API schema upgrade, and release alignment across charts, with improvements in API availability and deployment reliability. Key business outcomes include production-ready artifacts, smoother client integrations, and reduced deployment risk.
June 2025 monthly summary for hivemq-edge and helm-charts. Delivered stable release versioning, API schema upgrade, and release alignment across charts, with improvements in API availability and deployment reliability. Key business outcomes include production-ready artifacts, smoother client integrations, and reduced deployment risk.
May 2025 performance summary focusing on delivery of CI/CD modernization for HiveMQ Edge, build optimization for IDE compatibility, and release alignment across charts and manifests. All work contributed to faster feedback loops, more reliable builds, and coherent releases with reduced manual intervention.
May 2025 performance summary focusing on delivery of CI/CD modernization for HiveMQ Edge, build optimization for IDE compatibility, and release alignment across charts and manifests. All work contributed to faster feedback loops, more reliable builds, and coherent releases with reduced manual intervention.
April 2025 (2025-04) monthly summary for hivemq/hivemq-edge focused on improving build reliability, repo standardization, and developer productivity. Delivered core features with measurable business value and stabilized core workflows for faster releases.
April 2025 (2025-04) monthly summary for hivemq/hivemq-edge focused on improving build reliability, repo standardization, and developer productivity. Delivered core features with measurable business value and stabilized core workflows for faster releases.
March 2025, hivemq-edge: Delivered the 2025.4 release cycle (RC and final) and started groundwork for 2025.5, while advancing reliability, dynamic reloading, and data quality across the data plane. Key outcomes include: (1) shipped Release 2025.4 RC and final, with 2025.4-SNAPSHOT prepared for ongoing iteration; (2) initiated 2025.5 roadmap and prep work; (3) introduced dynamic reloading capabilities for bridge/config, protocol adapters, and DataCombiners/UNS hot reload to enable zero-downtime updates; (4) ADS stability improvements after batch loading with corrected error handling and related library fixes; (5) addressed critical data-plane bugs across missing parameters, Kubernetes TopicFilter path resolution, embedded HiveMQ integration, and Northbound mapping NPEs, plus general test robustness; (6) improved data accuracy and traceability with OPC UA timestamp and tagName inclusion, and datahub prefix handling; (7) strengthened quality and maintainability through test fixes, license header repairs, code-review improvements, and reduced log noise during adapter removal.
March 2025, hivemq-edge: Delivered the 2025.4 release cycle (RC and final) and started groundwork for 2025.5, while advancing reliability, dynamic reloading, and data quality across the data plane. Key outcomes include: (1) shipped Release 2025.4 RC and final, with 2025.4-SNAPSHOT prepared for ongoing iteration; (2) initiated 2025.5 roadmap and prep work; (3) introduced dynamic reloading capabilities for bridge/config, protocol adapters, and DataCombiners/UNS hot reload to enable zero-downtime updates; (4) ADS stability improvements after batch loading with corrected error handling and related library fixes; (5) addressed critical data-plane bugs across missing parameters, Kubernetes TopicFilter path resolution, embedded HiveMQ integration, and Northbound mapping NPEs, plus general test robustness; (6) improved data accuracy and traceability with OPC UA timestamp and tagName inclusion, and datahub prefix handling; (7) strengthened quality and maintainability through test fixes, license header repairs, code-review improvements, and reduced log noise during adapter removal.
February 2025 monthly summary for hivemq-edge and hivemq Helm charts: established a robust core platform baseline, delivered API readiness with OpenAPI integration, and hardened deployment and observability for scalable production use. The period focused on core stability, API governance, polling efficiency, and security/compliance in deployments, enabling faster time-to-value for customers and more reliable data flows.
February 2025 monthly summary for hivemq-edge and hivemq Helm charts: established a robust core platform baseline, delivered API readiness with OpenAPI integration, and hardened deployment and observability for scalable production use. The period focused on core stability, API governance, polling efficiency, and security/compliance in deployments, enabling faster time-to-value for customers and more reliable data flows.
January 2025 (2025-01) monthly summary for hivemq-edge focusing on delivering scalable API improvements, refactoring for maintainability, and reliability enhancements. Notable outcomes include migration to JAX-RS spec without servlets, an interface-driven refactor, API visibility enhancements, repeated-config configurability via a new Configurator interface, hot-reload capabilities, and stabilization of the test infrastructure. These changes reduce runtime overhead, improve developer and operator experience, and enable faster, safer feature delivery.
January 2025 (2025-01) monthly summary for hivemq-edge focusing on delivering scalable API improvements, refactoring for maintainability, and reliability enhancements. Notable outcomes include migration to JAX-RS spec without servlets, an interface-driven refactor, API visibility enhancements, repeated-config configurability via a new Configurator interface, hot-reload capabilities, and stabilization of the test infrastructure. These changes reduce runtime overhead, improve developer and operator experience, and enable faster, safer feature delivery.
December 2024 (hivemq-edge) highlights delivered a unified error handling framework, API surface alignment with a cleaned OpenAPI spec, targeted bug fixes, improved observability, and accelerated spec-first development and code generation. These changes enhance reliability, API consistency, and developer productivity, enabling faster troubleshooting and cleaner deployments.
December 2024 (hivemq-edge) highlights delivered a unified error handling framework, API surface alignment with a cleaned OpenAPI spec, targeted bug fixes, improved observability, and accelerated spec-first development and code generation. These changes enhance reliability, API consistency, and developer productivity, enabling faster troubleshooting and cleaner deployments.
November 2024 monthly summary for hivemq-edge: Delivered core data handling improvements and API enhancements that strengthen data integrity, configurability, and developer productivity. Centralized data type handling by moving datatype into tag definitions, introduced FileDataPoint to encapsulate file tag data, and aligned EtherNet/IP, File adapter, and PLC4X adapter configurations. Expanded API capabilities for tag and adapter management, updated OpenAPI specs and JSON schemas, and enabled creation of complete adapters with associated tags. Also focused on quality and compliance through targeted test updates, cleanup, and license header additions. Result: more reliable data processing, simplified adapter onboarding, and stronger governance.
November 2024 monthly summary for hivemq-edge: Delivered core data handling improvements and API enhancements that strengthen data integrity, configurability, and developer productivity. Centralized data type handling by moving datatype into tag definitions, introduced FileDataPoint to encapsulate file tag data, and aligned EtherNet/IP, File adapter, and PLC4X adapter configurations. Expanded API capabilities for tag and adapter management, updated OpenAPI specs and JSON schemas, and enabled creation of complete adapters with associated tags. Also focused on quality and compliance through targeted test updates, cleanup, and license header additions. Result: more reliable data processing, simplified adapter onboarding, and stronger governance.
Concise monthly summary for 2024-10 focusing on hivemq-edge Modbus Tag Definition consolidation and its impact.
Concise monthly summary for 2024-10 focusing on hivemq-edge Modbus Tag Definition consolidation and its impact.
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