You will get Twilio API Integration for your website by Twilio Expert

Name: You will get Twilio API Integration for your website by Twilio Expert
Availability: InStock

Roman H.

Rising Talent

Roman H.

Rising Talent

Project details

Programming Languages

HTML & CSS, JavaScript, TypeScript

What's included

Service Tiers	Starter $50	Standard $400	Advanced $2,000
Delivery Time	2 days	7 days	14 days
Number of Revisions	0	0	0
Design Customization	-	-	-
Content Upload	-	-	-
Responsive Design	-	-	-
Source Code	-	-	-

About Roman

Stripe Developer | Paypal Integration | Payment Integration | BA/PM

Ivano-Frankivsk, Ukraine - 8:23 pm local time

Stripe developer and payment integration lead. 12 years on the money path, $41.7M processed in five months of 2026 at a 98.47% card success rate.

Three situations bring people here. Checkout is built but money is leaking somewhere between the card form and the bank. You are switching processors and cannot afford a day of failed charges. Or you are launching and want payment integration done once by someone who has argued a chargeback before.

WHAT YOU GET
✔️ Fewer declined cards. Card success sits at 98.47% across 673K payments in five months.
✔️ Disputes that stay small. 190 disputes on 673K payments, a rate of 0.03%.
✔️ Migrations without a dark day. Braintree to Stripe moved live, 1.4M stored transactions carried over.
✔️ One team for the whole money path. Checkout, PayPal integration, payouts, refunds and reconciliation, with me managing the build and reporting to you.
✔️ Peak days that hold. $2.53M taken in a single day at nationals on a platform selling 1M+ tickets a year.

Send me your checkout flow or your current processor setup and I will reply with an integration plan and the first thing I would change.

Roman

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I am a project manager at a development agency. Every project below is built by our development team and I run it end to end. You get a full team's delivery capacity and one person accountable for it.

PAYMENTS AND FINTECH, $41.7M PROCESSED IN 5 MONTHS
- Stripe developer, SportWrench payments: $41.7M gross volume in 5 months, up 33.75% year over year.
- Stripe developer, Stripe Connect marketplace: $41.4M routed, 27 connected accounts onboarded in 5 months.
- Payment integration, card processing at scale: 673K payments cleared in 5 months, 98.47% card success rate.
- Stripe dispute work, chargeback defense: 0.03% dispute rate, 190 disputes on 673K payments, 71% of responses won.
- Braintree to Stripe migration, fintech client: 1.4M stored transactions moved with zero downtime.
- PayPal integration, checkout coverage: 22% of orders through PayPal, $9.1M annual PayPal volume.
- Payment gateway integration, high risk payment accounts: 3 gateways in failover, 99.98% authorization uptime.
- Payment processing for payroll and payouts: $6.2M paid to 2,100 contractors a year.
- Failed charge recovery, smart card retries: 12% of declines recovered inside 72 hours.
- Multi-currency checkout, 14 currencies live: 3.1% of volume settled outside USD.
- Stripe developper, credit card processing tuning: card success lifted from 94.1% to 98.47%.
- Stripe payments, subscription billing: MRR grown 2.4x in 15 months, 80 to 194 active subscriptions.
- Stripe developer, Stripe API webhooks and idempotency: zero duplicate charges across 673K payments, 14 event types handled.

SPORTS AND TICKETING, 1M+ TICKETS A YEAR
- Stripe developer, SportWrench ticketing: 1M+ tickets a year, ~800K registered users, $2.53M in one day at nationals.
- Payment integration, event checkout: 20,000+ attendees per event, 1,000+ QR scans an hour at the gates.
- Payment functionality and API integration, SportWrench: 20+ live integrations, 400K+ transactional emails a month.
- PayPal integration, tournament registration: 7,205 new customers in 5 months, up 240% year over year.
- Braintree, club billing across 1,000+ events a season: 99.9% uptime, 20+ live integrations.
- NFC payment, gate entry and concessions: 12,000+ tap payments in one event weekend.
- Payment getaway routing, University Athlete: 15 years in production, 15M+ athlete activity rows.

ECOMMERCE PLATFORMS
- Stripe Shopify build, Shopify payment on the Stripe SDK: 340K orders a year, 2.1% cart abandonment cut at checkout.
- PayPal integration and Braintree, WooCommerce on WordPress: 61K orders a year, $4.4M processed.
- Stripe developer, Wix Stripe and Webflow storefronts: 9 sites live, 18K orders a year.
- Payment integration, Braintree React front end in JavaScript and CSS3: 240ms average checkout render, 11K daily sessions.

STACK
- Java Springboot Stripe backend developer: 1,200 requests a second at peak, 99.98% uptime.
- PayPal integration Laravel, Laravel Stripe Paypal: 4 merchant sites in PHP and MySQL, $2.8M a year combined.
- Stripe developer, SwiftUi Stripe and React checkout: 84.4% of 838K annual users on mobile, 654K on iOS.
- Payment processing, fintech reporting in Python and SQL: 385,804 payments reconciled in 90 days on $23.1M.

SKILLS: Stripe, Stripe Connect, Stripe SDK, Stripe API, PayPal, Braintree, NFC, Shopify, WooCommerce, WordPress, Wix, Webflow, Laravel, PHP, Java, Spring Boot, SwiftUI, React, Node.js, JavaScript, HTML, CSS, CSS3, Python, SQL, MySQL, API integration, payment functionality, web design, software design, software development.

Steps for completing your project

After purchasing the project, send requirements so Roman can start the project.

Delivery time starts when Roman receives requirements from you.

Roman works on your project following the steps below.

Revisions may occur after the delivery date.

Development

Review the work, release payment, and leave feedback to Roman.

Select service tier

Starter$50

Standard$400

Advanced$2,000

Consultation

Delivery Time 2 days
Number of Revisions 0

2 days delivery — Aug 25, 2026

Revisions may occur after this date.

Upwork Payment Protection

Fund the project upfront. Roman gets paid once you are satisfied with the work.