
Erik Sundell contributed to infrastructure and data engineering projects, focusing on modernization and reliability. In the 2i2c-org/infrastructure repository, he enabled AWS cost attribution across clusters, migrated EKS configurations to managed add-ons, and streamlined infrastructure through Terraform and Helm, improving automation and governance. Within electricitymaps/electricitymaps-contrib, Erik modernized data parsers by standardizing date and time handling with Python’s datetime and zoneinfo, expanded regional data coverage, and enhanced test reliability using pytest and syrupy. His work addressed privacy, configuration management, and data accuracy, demonstrating depth in cloud infrastructure, Python development, and testing, while reducing maintenance overhead and supporting cross-team collaboration.

January 2025 focused on parser modernization, regional coverage expansion, and a fortified testing baseline in electricitymaps-contrib. The work standardized date/time handling across parsers, expanded coverage to BD-NP and MN coal data, added ES-IB-ME capacity configuration, and improved data reliability through SV/Kuwait fixes and a revamped tests framework. These changes reduce maintenance overhead, improve data accuracy, and accelerate future enhancements for diverse regions and data sources.
January 2025 focused on parser modernization, regional coverage expansion, and a fortified testing baseline in electricitymaps-contrib. The work standardized date/time handling across parsers, expanded coverage to BD-NP and MN coal data, added ES-IB-ME capacity configuration, and improved data reliability through SV/Kuwait fixes and a revamped tests framework. These changes reduce maintenance overhead, improve data accuracy, and accelerate future enhancements for diverse regions and data sources.
December 2024 monthly summary focused on privacy-conscious configuration cleanups, data tooling refinements, and parser modernization across three repositories. Key outcomes include removal of departed contributors' references, privacy-preserving workflow updates, simplified mock data generation, robust null-handling for net-exchanges, and modernization of time-handling code using built-in Python facilities. These changes reduce misattribution risk, streamline data generation, improve reliability of production dashboards, and demonstrate solid cross-team collaboration and code quality.
December 2024 monthly summary focused on privacy-conscious configuration cleanups, data tooling refinements, and parser modernization across three repositories. Key outcomes include removal of departed contributors' references, privacy-preserving workflow updates, simplified mock data generation, robust null-handling for net-exchanges, and modernization of time-handling code using built-in Python facilities. These changes reduce misattribution risk, streamline data generation, improve reliability of production dashboards, and demonstrate solid cross-team collaboration and code quality.
November 2024: Delivered cost attribution enablement across five AWS clusters, migrated EKS configurations to managed addons with tagging and a default EBS CSI storage class, and completed infrastructure cleanup/decommission to reduce sprawl and risk. Documentation and Terraform/variable updates accompany feature work, reinforcing governance, automation, and cost visibility.
November 2024: Delivered cost attribution enablement across five AWS clusters, migrated EKS configurations to managed addons with tagging and a default EBS CSI storage class, and completed infrastructure cleanup/decommission to reduce sprawl and risk. Documentation and Terraform/variable updates accompany feature work, reinforcing governance, automation, and cost visibility.
Overview of all repositories you've contributed to across your timeline