Elena Cazan

Limio is a leading platform for managing subscriptions, trusted by businesses like The Economist, GEDI Digital, and The Globe and Mail.

Responsibilities:

• Upgrade customer environments using Terraform to manage infrastructure as code.
• Write detailed documentation for new features, such as the Limio SDK, to ensure smooth onboarding and usage.
• Work with AWS Lambda and API Gateway to build, deploy, and troubleshoot scalable backend services.
• Create sprint and demo environments using Terraform for development and testing purposes.
• Diagnose and troubleshoot issues with Sentry and CloudWatch logs, ensuring high platform reliability.

Key Projects:

Refactoring Legacy Feature (Journeys):

Problem: The 'journeys' feature was slow and prone to data loss when multiple users edited it simultaneously.
Solution: Led the refactoring of the journeys feature, migrating data from S3 to DynamoDB, and implementing new Lambda functions and API endpoints.
Outcome: Improved concurrent user editing functionality, implemented version control, and reduced support tickets by 25%.

Data Migration and Cleanup with AWS Glue and Athena:

Problem: 15,000 users were unable to access critical account information due to a malformed data structure resulting from legacy migrations.
Solution: Diagnosed the issue using CloudWatch Logs, built an ETL script in AWS Glue, and used Athena to query and fix the data in DynamoDB.
Outcome: Restored user access, improved data consistency, and prevented future issues in the data migration process.