Equisix automation platform architecture illustration.

Equisix Full-Stack Automation Platform

A production-oriented financial automation SaaS built with React, TypeScript, and AWS.

Client
Equisix
Role
Senior full-stack engineer with end-to-end product ownership
Engagement
February 2026 – Present
ReactTypeScriptAWSSSTDynamoDBSQSVitestPlaywright

Challenge

A startup needed to turn evolving requirements and an early prototype into a secure multi-tenant SaaS that coordinates external financial services and reliable background automations.

My Role & Ownership

I own end-to-end delivery across requirements, product specifications, acceptance criteria, workflows, architecture, frontend, APIs, domain logic, cloud infrastructure, asynchronous runtimes, and release readiness. I use specification-led AI coding agents to accelerate research and implementation while retaining direct responsibility for architecture, security, review, testing, deployment, and validation.

Delivery & Engineering

  • Built a React and TypeScript web application covering onboarding, account security, automation configuration, dashboards, logs, transactions, exports, support, notifications, and billing.
  • Designed AWS infrastructure and services with SST/CDK, Cognito, DynamoDB, Lambda, SQS, S3, CloudFront, CloudWatch, and a fixed-egress runtime for protected third-party integrations.
  • Implemented deterministic scheduled and continuous automation flows with queue orchestration, idempotency, retries, failure recovery, secret isolation, and auditable state transitions.
  • Added subscription entitlements, webhook processing, customer notifications, privacy-conscious support diagnostics, structured logging, alerting, and operator tools.
  • Developed from traceable specifications and acceptance criteria, backed by unit, integration, end-to-end, UI-regression, and deployed smoke tests.

Result

The core product milestones are implemented, with deterministic automation, secure integrations, product workflows, and broad validation in place for release readiness. The platform is currently in pre-release validation.

Highlights

End-to-end ownership of a multi-tenant SaaS across product, frontend, backend, cloud infrastructure, and operations.
Security and reliability engineering for financial workflows and external service integrations.
AI-agent-enabled delivery governed by explicit specifications, human code review, automated tests, and deployment verification.