Opetushallitus/aoe
Nov 2024 – Feb 2025
4 Months active
Languages Used
BashDockerfileJSONJavaScriptSQLShellTypeScriptYAML
Technical Skills
API IntegrationAWSAWS CDKAWS ECRAWS IAMAWS KMS
Mikko Kauhanen
PROFILE
Mikko Kauhanen
Mikko Kauhanen developed and modernized the Opetushallitus/aoe platform over four months, delivering production-ready infrastructure, robust CI/CD pipelines, and secure cloud integrations. He architected scalable backend services and improved search capabilities using AWS CDK, OpenSearch, and Docker, while enhancing developer productivity with reproducible local environments and automated deployments. Mikko strengthened security through IAM policy refinements, GuardDuty integration, and credential management, and improved observability with CloudWatch alarms and ECS dashboards. His work included frontend and backend integration, accessibility improvements, and internationalization, all implemented with TypeScript and Java. The depth of his contributions ensured stable releases, maintainable code, and reliable production operations.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
110Total
Bugs
14
Commits
110
Features
50
Lines of code
24,536
Activity Months4
Your Network
50 people
Work History
February 2025
22 Commits • 12 Features
Feb 1, 2025February 2025 Dev Monthly Summary for Opetushallitus/aoe: This month focused on delivering user-facing improvements in search UX, strengthening observability and security, and advancing production readiness and data access capabilities. The work improved search relevance and feedback, reduced downtime risk, enabled domain readiness and multilingual support, and reinforced security posture. Notable outcomes include tuned OpenSearch fuzziness, UI spinners for search, alarms for Alb5xx and consumer offset with basic ECS dashboards, OAI-PMH v2 API to load all material versions with XML safety, dc:identifier addition, and production-ready domain, email sending, and S3 access configurations, plus various accessibility and frontend polish enhancements.
22 Commits • 12 Features
Feb 1, 2025February 2025 Dev Monthly Summary for Opetushallitus/aoe: This month focused on delivering user-facing improvements in search UX, strengthening observability and security, and advancing production readiness and data access capabilities. The work improved search relevance and feedback, reduced downtime risk, enabled domain readiness and multilingual support, and reinforced security posture. Notable outcomes include tuned OpenSearch fuzziness, UI spinners for search, alarms for Alb5xx and consumer offset with basic ECS dashboards, OAI-PMH v2 API to load all material versions with XML safety, dc:identifier addition, and production-ready domain, email sending, and S3 access configurations, plus various accessibility and frontend polish enhancements.
February 2025
January 2025
26 Commits • 9 Features
Jan 1, 2025January 2025 monthly summary for Opetushallitus/aoe. Delivered production-ready infrastructure, CI/CD and deployment pipelines, AWS prod configuration, data indexing reliability improvements, and backend/frontend integration enhancements. Business value: faster, safer deployments; stable production endpoints; improved data integrity and email delivery; clearer documentation and onboarding for new contributors.
January 2025
26 Commits • 9 Features
Jan 1, 2025January 2025 monthly summary for Opetushallitus/aoe. Delivered production-ready infrastructure, CI/CD and deployment pipelines, AWS prod configuration, data indexing reliability improvements, and backend/frontend integration enhancements. Business value: faster, safer deployments; stable production endpoints; improved data integrity and email delivery; clearer documentation and onboarding for new contributors.
December 2024
42 Commits • 22 Features
Dec 1, 2024December 2024 monthly summary for Opetushallitus/aoe: delivered broad modernization across data, backend, frontend, and infrastructure, significantly improving production readiness, security, observability, and developer productivity. Key platforms updated include OpenSearch, data analytics (DocumentDB/MSK/Kafka), and automated CI/CD pipelines to streamline deployments and reduce operational friction.
42 Commits • 22 Features
Dec 1, 2024December 2024 monthly summary for Opetushallitus/aoe: delivered broad modernization across data, backend, frontend, and infrastructure, significantly improving production readiness, security, observability, and developer productivity. Key platforms updated include OpenSearch, data analytics (DocumentDB/MSK/Kafka), and automated CI/CD pipelines to streamline deployments and reduce operational friction.
December 2024
November 2024
20 Commits • 7 Features
Nov 1, 2024November 2024 — Delivered core backend and infrastructure enhancements for the aoe project, strengthening developer productivity, security, and deployment reliability while establishing scalable search capabilities. The month delivered a reproducible local development environment, security hardening across services, automated multi-service CI/CD, and foundational OpenSearch Serverless and inter-service discovery capabilities that enable faster, safer releases and easier maintenance.
November 2024
20 Commits • 7 Features
Nov 1, 2024November 2024 — Delivered core backend and infrastructure enhancements for the aoe project, strengthening developer productivity, security, and deployment reliability while establishing scalable search capabilities. The month delivered a reproducible local development environment, security hardening across services, automated multi-service CI/CD, and foundational OpenSearch Serverless and inter-service discovery capabilities that enable faster, safer releases and easier maintenance.
Activity
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Quality Metrics
Correctness90.4%
Maintainability90.4%
Architecture88.0%
Performance84.2%
AI Usage20.4%
Skills & Technologies
Programming Languages
BashCSSCloudFormationDockerfileHTMLImageJSONJavaJavaScriptMarkdown
Technical Skills
ALBAPI DevelopmentAPI GatewayAPI Gateway ConfigurationAPI IntegrationAWSAWS CDKAWS ECRAWS EventBridgeAWS GuardDutyAWS IAMAWS KMSAWS MSKAWS OpenSearch ServerlessAWS S3
Repositories Contributed To
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