“They treat 'it works' as the start of the checklist, not the end of it.”
We hired Sulonya to build and maintain RankMeTop, a pay-to-rank leaderboard where real money moves on every transaction — so the payment layer had to be right, not just working. The standout moment was a payment gateway migration we requested. They discovered the new provider couldn't charge Indian-issued cards in foreign currency, which would have silently locked out our entire customer base. Instead of patching around it, they built proper multi-currency support with auto-detection by billing country and user override, fixing the problem at the root. They showed the same care on things we hadn't asked about: protecting historical payment records during the database migration and fixing currency-display bugs on our tax invoices. Every fix came with proof it worked. They're the kind of team that flags a risky call instead of quietly making it for you. I'd hire them again for anything touching money or data.
