Nexus
Multi-tenant AWS gateway hub
Built from scratch. Large-scale external-facing edge infrastructure with custom Cognito auth methods for complex tenant emulation. Serves 20+ production applications for 20+ external customers and 1,000+ users, at millions of requests per day. Handles tenant isolation, API key management, and identity federation across Azure AD and Cognito.
- CloudFront
- Lambda@Edge
- VPC Origins
- Cognito
- API Gateway
- DynamoDB
- WAF
Backoffice
Nexus's operational control plane
Manages the platform Nexus serves: edits AWS WAF ACLs to update tenant IPs and domains, and enables, disables, and edits deployed applications and features across every tenant. Multi-persona access model backed by Cedar fine-grained authorization.
- Python
- Lambda
- DynamoDB
- WAF
- Cedar / Verified Permissions
cloud-sso
Self-service AWS access, used by 2,000+ employees
Custom tooling bridging an on-prem HashiCorp Vault deployment with AWS. Grants fine-grained access across 100+ AWS accounts via OIDC-based Vault login and IAM roles with custom credential providers.
- Go
- Python
- HashiCorp Vault
- OIDC
- AWS IAM
Runs on Bedrock AgentCore with Bedrock Knowledge Bases, a data cleanup and sync ETL pipeline, and Guardrails for input/output validation to prevent misuse.
- Bedrock AgentCore
- Bedrock Knowledge Bases
- Guardrails
- Python
SecOps auto-remediation framework
Findings to fixes, without a human in the middle
Modular Python framework triggering auto-remediation playbooks directly off security violation events from the Wiz platform — closing the loop between findings and infrastructure fixes.
Multi-tenant notification system
Fan-out across the tenant estate
SQS-based fan-out with subscriber management, serving the Nexus tenant estate.
- SQS
- EventBridge
- Lambda
- DynamoDB