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Arkady Dolina
Senior Frontend Engineer specializing in React/Next.js and large-scale media platforms
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About
Backend/data engineer with hands-on AWS serverless and data platform experience: built a Lambda-based reCAPTCHA/token validation + SES subscription workflow and designed Glue ETL pipelines producing Parquet datasets for Athena. Also led a high-traffic multilingual media CMS modernization at Radio Free Asia by migrating to Arc XP using parallel runs, phased rollouts, feature flags, and rollback plans.
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Key Strengths
- Built serverless AWS Lambda integration validating reCAPTCHA/token and triggering SES email subscription workflow
- Designed AWS Glue ETL from S3/APIs to Parquet in S3 with Glue Catalog as schema source of truth; downstream Athena consumption
- Implemented data quality controls in Glue jobs with CloudWatch metrics/alerting and recovery using job bookmarks for safe replays
- Modernized legacy CMS by leading migration to Arc XP for high-traffic multilingual media sites using parallel runs, phased rollout, feature flags, and rollback plans
- Production SQL performance tuning via execution plans, composite indexes, and partition alignment; reduced latency from minutes to seconds
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