Fiaz A.

𝐈 𝐭𝐚𝐤𝐞 𝐨𝐯𝐞𝐫 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐒𝐚𝐚𝐒 𝐬𝐲𝐬𝐭𝐞𝐦𝐬, 𝐟𝐢𝐧𝐝 𝐰𝐡𝐚𝐭'𝐬 𝐛𝐫𝐨𝐤𝐞𝐧, 𝐚𝐧𝐝 𝐦𝐚𝐤𝐞 𝐭𝐡𝐞𝐦 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲.

I'm the senior engineer founders bring in to audit existing applications, identify security and architectural gaps, fix unreliable payment workflows, and take unfinished products toward production.

My strongest background is in SaaS platforms and payment systems, especially Stripe, subscriptions, marketplace payments, Connect, payouts, billing, webhooks, and payment-driven business workflows.

I've spent 6+ years building and improving production software, earning $400K+ and logging 10,000+ hours on Upwork. I've worked on products ranging from early-stage funded startups to established businesses in logistics, pharmacy, healthcare, travel, payments, and B2B SaaS.

𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗

• SaaS products from MVP to production
• Marketplace platforms with Stripe Connect, commissions, payouts, refunds, and onboarding
• Multi-tenant platforms with roles, permissions, billing, reporting, and workflows
• Subscription products with recurring billing, usage-based pricing, invoicing, and retries
• Secure backend systems, APIs, integrations, automation, and AI-powered workflows
• Booking and transaction-based platforms where payments must stay synchronized with business operations
• Existing SaaS products that need a senior engineer to take ownership and move them forward

𝗪𝗛𝗔𝗧 𝗜 𝗛𝗘𝗟𝗣 𝗙𝗜𝗫

• Payment systems where successful charges do not correctly update the application
• Applying RLS policies on the existing Supabase database to make it secure
• SaaS products that have outgrown their original architecture
• Duplicate webhooks, failed callbacks, retries, refunds, and reconciliation problems
• Multi-tenant permission and data isolation problems
• Weak database design, slow APIs, and performance bottlenecks
• MVPs that need to become stable production products without a complete rebuild
• Existing products with unfinished features, technical debt, or unreliable integrations

𝗥𝗘𝗖𝗘𝗡𝗧 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘

• Built payment and booking architecture for JaiThai, an emerging Thailand travel startup using marketplace payment and payout flows
• Spent 3+ years helping build Routd, a $10M+ UK logistics technology business supporting warehouse and vending operations connected with Amazon environments • Helped build Sturely, a Belgian SaaS startup that has secured funding and onboarded 5+ major beta customers • Worked on Westmount Pharmacy, a $20M+ Canadian pharmacy business with complex prescription, inventory, scheduling, matching, and operational workflows • Built Stripe subscription and marketplace systems involving Connect, ACH, recurring billing, invoicing, payouts, retries, refunds, and webhook automation • Worked on healthcare and telehealth products including Alina Telehealth, with secure workflows involving sensitive user and operational data