Rushabh D.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Payment gateway broken? Checkout failing? Subscriptions misbehaving? Already hired developers who "integrated Stripe" but do not understand payments? Stop wasting time. If money is moving through your system, you need someone who understands how payment systems actually work, not just how to call an API. *About Me -- Payment Systems Specialist* I’m Rushabh Dave, a payment gateway and fintech systems architect with 12+ years of experience, including hands-on work inside a regulated payment acquirer (formerly payment aggregator). I don’t just "integrate gateways". I design, build, and fix the core systems that move money. I have built and owned production-grade payment architectures covering: - Authorization, capture, void, refunds - Subscriptions, recurring billing, trials, and retries - Ledger-based transaction systems and reconciliation - Webhooks, idempotency, and failure recovery - Payment routing, risk rules, and compliance constraints - High-risk and restricted-merchant payment flows I’ve worked directly with acquiring banks and enterprise gateways including Visa, MasterCard, MPGS, Cybersource, and American Express. I understand payments from the inside of the acquirer, not just the merchant UI. This is why clients bring me in after others fail. *Tech Stack (Secondary)* I use whatever tools are appropriate to implement the correct payment architecture: Backend: PHP, Laravel, WordPress, Node.js, Python Databases: MySQL, PostgreSQL (ledger-style schemas) Frontend: React, Vue (admin dashboards, ops tools) Languages are replaceable. Correct payment logic is not. *Why Serious Clients Hire Me* - I think like a payment architect, not a freelancer - I design systems that survive real-world failures - I take full ownership of critical payment flows - I communicate clearly with product, ops, and finance teams If you want a payment system that works under pressure, at scale, and with real money, click Hire. I’ll tell you quickly whether your problem is simple or whether it needs real engineering.