| Sr. No | Skills | Years of Exp | Rating |
| 1 | 15+ years software engineering, 6+ years focused on AWS serverless and distributed systems. | | |
| 2 | Deep expertise in Lambda-centric serverless architectures at scale. | | |
| 3 | Event-driven, streaming, and data pipeline architecture — data flow design, ordering, replay, dead-letter handling, streaming-vs-batch trade-offs. Hands-on with Kinesis, SQS, EventBridge, or equivalent. | | |
| 4 | TypeScript / Node.js — sufficient depth to review Lambda design, conduct code reviews, and assess agent-generated implementation patterns. | | |
| 5 | DynamoDB — data modelling at scale, single-table design, GSI strategies, access pattern optimization. Non-negotiable. | | |
| 6 | Document database experience — MongoDB, Couchbase, DocumentDB, or equivalent. Document modelling, query performance, aggregation patterns, polyglot persistence with DynamoDB. MongoDB preferred but not required. | | |
| 7 | OpenSearch / Elasticsearch — index design, search patterns, analytics workloads, scaling. | | |
| 8 | IaC (CDK / Terraform) — define standards, review configurations, enforce best practices. Heavy authoring done by SDEs with agent assistance. | | |
| 9 | Architectural governance across the full SDLC — design reviews, code reviews, production readiness. | | |