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I need a developer who can take full ownership of opening, configuring, and technically integrating accounts for thirty-five separate payment providers on my e-commerce sites. All integrations will run on standard website stacks, not mobile or desktop apps, and each gateway must successfully process both credit/debit card transactions and the cryptocurrency options that the providers allow. Here’s what the job looks like from my side: I will supply access to the sites, the list of providers, and any required corporate documentation. You will handle the account applications where needed, obtain and secure API keys or SDKs, install the gateways, map the required webhooks, and make sure that successful, failed, and refunded payments are reported correctly in the site’s back-office. Every provider must pass end-to-end sandbox testing before we go live, and then complete a live $1 test charge in production. Deliverables: • Active, verified merchant accounts for all 35 providers • Cleanly coded integrations (PHP or Node are fine, but keep the architecture consistent across all gateways) • Transaction, refund, and error logging wired into the existing admin dashboard • A concise implementation guide covering credentials, callback URLs, and any cron jobs or webhooks you added • Final test report showing sandbox and live transaction IDs for every provider I’m looking for someone who has already connected multiple gateways—Stripe, PayPal, Coinbase Commerce, [login to view URL], etc.—and understands PCI-DSS, SSL, and basic cryptography best practices. If you’ve built tokenized card flows or on-chain payment confirmations before, mention it. Timeline is tight, so let me know how many gateways you can onboard per week and any prerequisites you need from me up front. the underlisted are the providers we need Aamarpay 1 0 Enabled [login to view URL] 11 0 Enabled bKash 1 0 Enabled BTCPay 2 0 Enabled Binance 3 0 Enabled Blockchain 1 0 Enabled Cashmaal 2 0 Enabled Checkout 10 0 Enabled Coinbase Commerce Coingate CoinPayments CoinPayments Flutterwave Instamojo Mercado Pago Mollie NMI Now payments checkout Now payments hosted Payeer Paypal Paypal Express PayStack PayTM Perfect Money RazorPay Skrill SslCommerz Stripe Hosted Stripe Storefront Stripe Checkout 2Checkout
Project ID: 40643638
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26 freelancers are bidding on average $96 USD for this job

Hi, I can help with Configure 35 E-Commerce Payment Gateways. My relevant stack for this is PHP, Node.js, Payment Gateway Integration. I will clarify scope first, implement cleanly, and keep you updated until delivery. Thanks, Arslan Shahid
$10 USD in 7 days
5.8
5.8

With over 9+ years of experience in web and mobile app development and a focus on E-commerce projects such as this, I am more than well-equipped to seamlessly integrate the 35 separate gateways into your websites. Beyond just possessing technical proficiency in PHP and Node, I also have extensive knowledge of digital payment platforms including but not limited to Stripe, PayPal, Coinbase Commerce, and Authoize.net. Your e-commerce project necessitates a deep understanding of PCI-DSS, SSL,and cryptography - all of which are part and parcel of my skill set. Moreover, my solid grasp on cryptocurrency transactions will prove beneficial for your cryptocurrency integration needs. Given the tight timeline you've provided for this project, let me assure you that my efficiency is guaranteed - I can connect several gateways per week without compromising quality. In fact, my expertise in connecting multiple gateways makes for an efficient standard architecture across all the providers. Lastly, my post-delivery support will extend for Three months, ensuring the seamless functioning of your integrated payment system even after completion. Additionally, I offer competitively priced hosting and domain services as a way to go above and beyond for my clients. Choosing me for this project means entrusting it to someone who takes full ownership of his tasks and is willing to ensure its success long after its completion. Thank you for considering me - I look forward to working with you.
$120 USD in 7 days
5.4
5.4

Hi, I can take ownership of the gateway rollout from account setup through sandbox and live verification. With 35 providers, the key is keeping the integrations consistent rather than building 35 completely different payment systems. I’ve worked with payment gateways, wallet flows, crypto payments, webhooks, transaction callbacks, and payment reconciliation. I’m comfortable with providers such as Stripe, PayPal, NOWPayments, Coinbase-style crypto gateways, and similar integrations. I’d build a common payment layer in PHP or Node.js covering: • Provider configuration and secure credentials • Payment/deposit and refund flows • Webhook/callback handling • Idempotency and transaction verification • Success/failure/error logging • Admin transaction mapping • Sandbox testing and production $1 verification For each provider, I’d document API keys, callback URLs, webhook requirements, and any cron/background jobs. I’d also review each provider’s requirements before onboarding, since merchant approval and API access can depend on your company documents, country, products, and compliance status. Once access and documentation are available, I can work through the gateways systematically and provide a test report with the relevant transaction references. I’d be happy to start with the first few gateways, establish the common integration pattern, and then scale the rollout across the remaining providers.
$100 USD in 2 days
4.8
4.8

Hi I can configure your eCommerce payment gateways with secure checkout integration, payment methods, API/webhook setup, transaction testing, order-status handling, and proper error handling, ensuring customers can complete payments smoothly and reliably across desktop and mobile. Kundan
$40 USD in 1 day
4.1
4.1

Hi there, Are all 35 providers integrating into a single e-commerce platform or spread across multiple sites with different codebases? All 35 payment gateways integrated, tested, and live card and crypto flows verified in sandbox and production, every provider documented before handoff. - All providers including Stripe, Razorpay, Flutterwave, BTCPay, Binance, bKash, Coinbase Commerce and remaining 28 installed with consistent architecture webhooks mapped, refund and error logging wired into your existing admin dashboard - Full test report with sandbox and live $1 transaction IDs for every provider, plus implementation guide covering credentials, callback URLs, and webhook endpoints across all 35 integrations 8+ years integrating payment gateways across WooCommerce, custom PHP, and Node tokenized card flows, on-chain confirmations, and PCI-DSS compliant architecture are core to my work. Quick questions: - Which platform is the primary stack WooCommerce, custom PHP, or Node? - What is your target go-live deadline and weekly review capacity for sandbox testing? Let's discuss further. Regards, Rajat Trivedi
$20 USD in 7 days
2.9
2.9

Osogbo, Nigeria
Payment method verified
Member since Jul 2, 2019
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