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Multi-Tenant SaaS for 10,000+ Users

Architecture and delivery of a high-volume, multi-tenant SaaS platform with AI features, integrated payments and Google-certified security.

Client
US SaaS company (remote)
Role
Fullstack Developer & Team Lead
Year
2025–2026
users
10k+
delivery speed
+25%
test coverage
85%
revenue
+15%

01 · Challenge

A fast-growing product needed to scale, ship releases on schedule and pass Google's CASA security assessment for Gmail API access, while under targeted attacks.

02 · Solution

Led a cross-functional team of five engineers, built core features across the stack, added OpenAI-powered features, integrated Stripe, Square and PayPal, hardened the platform with a WAF and rate limiting, and introduced Jest and Playwright pipelines with CI/CD.

03 · Results

Three major releases delivered on schedule, faster delivery, high test coverage and a passed Google CASA assessment.