sema.cloud
Projects

Working MVPs, not slideware.

Every project here is open source, deployed via Terraform, and shaped to take real traffic — extraction pipelines, RAG, observability, the lot. Click through for the architecture, the design decisions, and what I'd do differently next time.

Portfolio

Selected work

Showing 1-2 of 3
Tenant Lens preview Tenant Lens preview

Tenant Lens

Multi-Tenant RAG · Hybrid Retrieval · Bedrock
Case study →

A multi-tenant support system for DevOps and SRE teams. Hybrid full-text + vector retrieval with strict tenant isolation, JWT-bound query boundaries via Cognito, and idempotent ingestion with replacement semantics for living documents.

3
fictional tenants
JWT
tenant isolation
Hybrid
retrieval (BM25 + vector)
  • AWS
  • S3
  • SQS
  • Lambda
  • Step Functions
  • OpenSearch
  • Bedrock
  • Cognito
  • Claude Sonnet 4.6
  • Titan Embeddings V2
  • Terraform
Source
AWS Landing Zone preview AWS Landing Zone preview

AWS Landing Zone

Control Tower · Terraform · Account Vending
Case study →

A governed AWS multi-account foundation built around Control Tower, IAM Identity Center, Terraform, policy-as-code, hub networking, and AFT-based account vending.

6
top-level OUs
4
shared accounts
6-12w
ready timeline
  • AWS
  • Control Tower
  • Organizations
  • IAM Identity Center
  • Terraform
  • GitLab OIDC
  • OPA
  • Conftest
  • GuardDuty
  • Route 53
  • AFT
Source
Invoice Intelligence Platform preview Invoice Intelligence Platform preview

Invoice Intelligence Platform

Serverless AWS · Champion/Challenger ML Eval
Case study →

A four-zone data lake with event-driven extraction. Benchmarked Amazon Textract against Bedrock Nova Lite on the same canonical contract — Nova Lite came in 28× cheaper and 6× faster.

28×
cheaper
6×
faster
12
TF modules
  • AWS
  • S3
  • SQS
  • Step Functions
  • Lambda
  • Bedrock
  • Textract
  • DynamoDB
  • Glue
  • Athena
  • CloudWatch
  • Terraform
Source