CRO | CTO | STRIPE CONNECT | STRIPE BILLING | STRIPE RADAR | STRIPE API | STRIPE CHECKOUT | STRIPE TERMINAL | FINTECH | SAAS | AI | PAYMENTS | COMPLIANCE ( PCI DSS, GDPR)
CRO | Meta Ads | Google Ads | ROAS | CAC
XERO | QUICKBOOKS | ACCOUNTING SOFTWARE INTEGRATION
FRACTIONAL CTO SERVICES | SCALABLE MVP DEVELOPMENT | REMOTE TEAM LEADERSHIP | TECHNICAL ROADMAPPING | STRIPE CONSULTING & DEVELOPMENT | AI | AUTOMATION
Fractional CTO | 17+ Years IT Leadership | FinTech & Healthcare | Scalable MVPs | Stripe & Payments Expert
I bring 17+ years of experience in technology, 10 years in FinTech and 2 years in AI—leading startups from concept to scale. As a Fractional CTO, I specialize in architecting investor-ready MVPs, building and managing remote engineering teams, and aligning technical roadmaps with business milestones. My approach balances speed-to-market with the long-term stability investors expect.
As a Certified Stripe Expert, I’ve delivered 200+ projects across SaaS, eCommerce, and healthcare, helping founders design, integrate, and optimize payments that drive revenue and meet global compliance standards. Beyond Stripe, I manage full product lifecycles, ensuring delivery on time, within budget, and aligned with growth objectives.
I’m also passionate about AI-driven automation, applying conversational AI, intelligent bots, and no/low-code workflows to simplify operations and create scalable, cost-efficient systems.
What I Offer:
Fractional CTO leadership & technical roadmapping
Stripe consulting, integration, and optimization
Scalable MVP development with investor alignment
End-to-end project & product management (Agile/Scrum)
AI-powered automation for payments, SaaS, and operations
If you’re looking for a CTO who blends deep technical expertise with executive strategy, I’d be glad to help shape and scale your product.
SKILLS:
✓✓✓ Payment Gateway Integrations
✓✓✓ Payment Gateway Migrations
✓✓✓ Technical Roadmapping
✓✓✓ Startup Fundraising Support
✓✓✓ Cloud Architecture (AWS, GCP, Azure)
✓✓✓ Remote Team Leadership
✓✓✓ SaaS Architecture
✓✓✓ Healthcare Technology (HIPAA, HL7, FHIR)
✓✓✓ FinTech Compliance (PCI DSS, PSD2)
✓✓✓ Scalable MVP Development
✓✓✓ Vendor Management
✓✓✓ AI Software Development
✓✓✓ AI Agent Development
✓✓✓ No/Low Code Development
• STRIPE
• PAYPAL
• Authorize.net
• 2 Checkout
• Sage Pay
• Square
• WorldPay
• RazorPay
• WeChat Pay
• iDeal
• Klarna
• QuickBook TaxJar
• Xero
• AI
• ChatGPT
• LangChain
Tech Stack & Leadership Capabilities
✓ DevOps & Infrastructure: CI/CD pipelines, Docker, Kubernetes, infrastructure-as-code (Terraform, Ansible), monitoring & observability (Datadog, Prometheus, Grafana).
✓ Cybersecurity & Compliance: Identity and access management, encryption standards, SOC2 & GDPR compliance, penetration testing oversight.
✓ Data & Analytics: Data pipelines, ETL, real-time processing (Kafka, Spark), business intelligence dashboards.
✓ Mobile Oversight: iOS/Android (Swift, Kotlin, React Native, Flutter) – leadership & architectural guidance.
✓ Scalability & Reliability: Microservices architecture, high availability (HA), disaster recovery (DR), event-driven systems.
✓ Product Strategy: Product-market fit, UX/UI oversight, customer-driven roadmaps, investor milestone alignment.
Core Development Expertise:
✓ Languages & Frameworks: Python, Java, Node.js, Next.js, PHP, Java EE (Servlet, JSP, EJB, Hibernate, Spring).
✓ Web & CMS: WordPress, WooCommerce.
✓ Databases: MySQL, Oracle.
✓ Cloud: AWS, GCP, Azure.
✓ OS: Linux, Windows.
✓ Front-End: JavaScript, jQuery, AJAX, Node.js.
✓ APIs & Integrations: REST APIs, ChartMogul, Twilio, Mailchimp, HubSpot, Facebook Graph, Google Maps, Twitter.
✓ Video Handling: Cloudflare Stream (direct upload, processing, secure playback).
✓ Tooling & Automation: Jenkins, MQ, Agile/Scrum workflows.
Stripe
Stripe API
Stripe SDK
Mobile Payment Functionality
Payment Functionality
Point of Sale & Payment Systems
Payment Gateway Integration
PayPal Development
Payment Plugin
Payment Gateway
Payment Processing
Payment Integration Framework
PayPal
Google Ads
Conversion Rate Optimization
Steve M.
Waterford, California
$50/hr
5.0
46 jobs
➡️ I'm a full-stack WordPress, WooCommerce, and JavaScript developer w/ 20 years of experience. Invite me or save my profile for future reference. Always happy to help.
➡️ Skills:
★ WordPress
★ WooCommerce
★ 3rd-Party integrations (Stripe, MLS, Geolocation, Maps, social media, SaaS, etc)
★ Custom API integrations
★ Custom WP APIs
★ Headless WordPress
★ ACF - Advanced Custom Fields Pro
★ Custom Post Types
★ JavaScript
★ Custom Plugins and Themes
★ Troubleshooting and fixing WordPress errors
★ Elementor
★ New Sites (custom, existing or premium theme)
★ Responsive, Mobile-Friendly
★ Page Speed Optimization / Lighthouse scores
★ Theme Customization
★ Redirects
★ Security (Wordfence, etc)
★ GravityForms, Fluent Forms
★ Cloudflare
★ Google Analytics, HotJar, Facebook Pixel and other snippets
★ And more
➡️ Other Skills
● Alpine.js
● TailwindCSS
● Next.js
● Hasura
● HTML5 / CSS3
● jQuery
● Sass, Less
● PHP / MySQL
● cPanel, WHM, MySQL Administration
● JavaScript
● React
● Node / NPM
● Git / GitHub / GitLab
● Netlify / Jamstack
● Webpack
Stripe
API Integration
WordPress
WooCommerce
JavaScript
CSS
PHP
Theme Customization
Theme Development
Plugin Customization
WordPress Plugin
WordPress Theme
Plugin Development
WordPress Development
Tailwind CSS
Harutyun K.
Los Angeles, California
$40/hr
5.0
26 jobs
Hi there! I’m Harry, a senior full-stack developer based in Los Angeles, California. As a developer with over seven years of experience, I am able to work confidently in various languages, libraries, and can incorporate different frameworks into your code to take your website to the next level. More specifically, I specialize in
➤ Vue.js
➤ Node.js
➤ Laravel
➤ CSS 3
➤ Git Version Control
➤ Web Host Manager
➤ API
➤ JavaScript
➤ HTML5
➤ PHP
➤ HTML
➤ SCSS
➤ Bootstrap
➤ MySQL
➤ jQuery
➤ AWS
My experience extends to configuring APIs as well as web host management. I develop source code exclusively with Git to ensure all changes and developments are accounted for and saved. My code is clean and well documented so it is easy for any developer to understand, maintain, and modify. I structure files, check validity, and do not write repeated, poorly named, or inconsistent code. As an expert full-stack developer, I can make you the best, most secure website to ensure you can reach the maximum number of potential clients. Send a message, and let’s get started today.
Stripe
API
Git
Vue.js
CSS 3
JavaScript
SCSS
jQuery
Bootstrap
Node.js
AWS CloudFront
MySQL
Laravel
Web Host Manager
PHP
Tsegai T.
Los Angeles, California
$40/hr
5.0
4 jobs
I am an experienced Front / Back End developer with skill sets
PHP, Laravel, CSS3, Tailwind CSS, Alpine JS, Livewire, Vue.JS , MySQL, PERL, HTML5, WordPress , C#, Stripe API, Google API, SendGrid API, Firebase API
I would love the opportunity to work with you and help bring your project to life!
Stripe API
MySQL
Git
PHP
Perl
Laravel
C#
ASP.NET
Adobe XD
HTML5
Tailwind CSS
CSS
Vue.js
WordPress
Web Development
Subodh S.
Sacramento, California
$95/hr
4.7
253 jobs
𝗜𝘀 𝘆𝗼𝘂𝗿 𝗽𝗮𝘆𝗺𝗲𝗻𝘁 𝘀𝘆𝘀𝘁𝗲𝗺 𝗰𝗼𝘀𝘁𝗶𝗻𝗴 𝘆𝗼𝘂 𝗺𝗼𝗻𝗲𝘆 𝗮𝗻𝗱 𝗰𝗮𝘂𝘀𝗶𝗻𝗴 𝘀𝗹𝗲𝗲𝗽𝗹𝗲𝘀𝘀 𝗻𝗶𝗴𝗵𝘁𝘀? Let’s turn that stress into success.
With over 20 years of experience as a seasoned FinTech leader and Global CTO specializing in 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗚𝗮𝘁𝗲𝘄𝗮𝘆 𝗜𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻, 𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻, and 𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻 𝗛𝗮𝗻𝗱𝗹𝗶𝗻𝗴, a proven track record awaits you. Payment systems have been built and optimized to not only meet today's demands but also scale with your business tomorrow—delivering over 𝗨𝗦𝗗 𝟮𝟬𝗠 𝗶𝗻 𝗿𝗲𝘃𝗲𝗻𝘂𝗲 𝗳𝗼𝗿 𝟭𝟬+ 𝗰𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀 and powering 200+ successful app launches worldwide.
𝗪𝗵𝗮𝘁 𝗜 𝗕𝗿𝗶𝗻𝗴 𝘁𝗼 𝘁𝗵𝗲 𝗧𝗮𝗯𝗹𝗲:
𝟭. 𝗘𝘅𝗽𝗲𝗿𝘁 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Mastery in integrating 𝗦𝘁𝗿𝗶𝗽𝗲, 𝗦𝘁𝗿𝗶𝗽𝗲 𝗖𝗼𝗻𝗻𝗲𝗰𝘁, and other payment gateway APIs, ensuring secure, efficient, and scalable payment systems.
𝟮. 𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻 & 𝗧𝗿𝗮𝗻𝘀𝗮𝗰𝘁𝗶𝗼𝗻 𝗟𝗼𝗴𝗶𝗰: Proven expertise in handling recurring payments, multi-invoice payments, partial payments, and complex scenarios like payment failures, refunds, and voiding transactions.
3. 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 & 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝘆: Adept at leading cross-functional teams, communicating with C-level executives, and transforming technical challenges into robust, revenue-generating solutions.
𝟰. 𝗛𝗮𝗻𝗱𝘀-𝗢𝗻 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: Whether you’re dealing with broken software systems or planning a complete digital transformation, startups and enterprises alike have seen at least a 𝟭𝟬% 𝗶𝗺𝗽𝗿𝗼𝘃𝗲𝗺𝗲𝗻𝘁 𝗶𝗻 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆 𝗮𝗻𝗱 𝗽𝗿𝗼𝗳𝗶𝘁𝗮𝗯𝗶𝗹𝗶𝘁𝘆 through these solutions.
𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲 𝗶𝗻 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴:
Leveraging cutting-edge payment processing protocols — 𝗣𝗖𝗜-𝗗𝗦𝗦 𝗰𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲, 𝘁𝗼𝗸𝗲𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻, 𝗲𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱 𝗲𝗻𝗰𝗿𝘆𝗽𝘁𝗶𝗼𝗻, and 𝟯𝗗 𝗦𝗲𝗰𝘂𝗿𝗲 𝗶𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻𝘀 — ensures sensitive data is safeguarded and fraud risks are mitigated. Expertise in configuring 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗜𝗻𝘁𝗲𝗻𝘁𝘀, 𝗦𝗲𝘁𝘂𝗽 𝗜𝗻𝘁𝗲𝗻𝘁𝘀, and utilizing 𝘄𝗲𝗯𝗵𝗼𝗼𝗸𝘀 for real-time event handling optimizes 𝗦𝗖𝗔 flows, manages decline handling and chargebacks, and ensures seamless reconciliation across multiple payment channels. A deep understanding of card network rules, risk management strategies, and automated dunning processes guarantees that payment operations remain both resilient and highly efficient.
𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗶𝗻 𝗜𝗻-𝗔𝗽𝗽 𝗣𝘂𝗿𝗰𝗵𝗮𝘀𝗲 𝗛𝗮𝗻𝗱𝗹𝗶𝗻𝗴:
Extensive experience with 𝗶𝗻-𝗮𝗽𝗽 𝗽𝘂𝗿𝗰𝗵𝗮𝘀𝗲 systems on both 𝗚𝗼𝗼𝗴𝗹𝗲 𝗣𝗹𝗮𝘆 and 𝗔𝗽𝗽𝗹𝗲 𝗔𝗽𝗽 𝗦𝘁𝗼𝗿𝗲 platforms complements robust payment gateway integrations. Successfully blending these in-app purchase mechanisms with 𝗦𝘁𝗿𝗶𝗽𝗲 creates a unified payment ecosystem that supports subscriptions, one-time purchases, and cross-platform transactions. Notable projects include 𝗦𝘁𝗿𝗲𝗮𝗺𝗶𝗹𝘆 and 𝗕𝗿𝗮𝗶𝗻𝗧𝗮𝗽, where in-app purchase flows were seamlessly integrated with backend payment processing to optimize revenue and enhance user experience.
𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀:
𝟭. 𝗚𝗹𝗼𝗯𝗮𝗹 𝗜𝗺𝗽𝗮𝗰𝘁: Solutions delivered have scaled workforces and revenues — streamlining processes and reducing monthly costs dramatically (e.g., cutting costs from $𝟭𝟲𝟬,𝟬𝟬𝟬 𝘁𝗼 $𝟱𝟬,𝟬𝟬𝟬).
𝟮. 𝗥𝗲𝘀𝘂𝗹𝘁𝘀-𝗗𝗿𝗶𝘃𝗲𝗻: Engagements have doubled revenue for companies like 𝗕𝗿𝗮𝗶𝗻𝗧𝗮𝗽 and contributed to a 𝟵𝟵.𝟲% 𝗰𝗿𝗮𝘀𝗵-𝗳𝗿𝗲𝗲 𝗿𝗮𝘁𝗲, leading to over 𝟭𝟬,𝟬𝟬𝟬 𝗱𝗼𝘄𝗻𝗹𝗼𝗮𝗱𝘀 and high user ratings.
𝟯. 𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝗼𝗻 & 𝗔𝗴𝗶𝗹𝗶𝘁𝘆: Continuously integrating the latest tools—from 𝗔𝗜 𝗶𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝗼𝗻𝘀 like ChatGPT and DeepSeek to advanced mobile app development frameworks — ensures clients remain ahead of the curve.
𝗖𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲 & 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆:
PCI-DSS | SOC2 | HIPAA | GDPR
𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲?
Partner with an expert who delivers tangible results, allowing you to focus on business growth. If you're ready to stop wrestling with payment integration issues and start experiencing streamlined, profitable operations, let's connect.
Book a Consultation Today.
Stripe
Stripe API
Stripe SDK
JavaScript
In-App Purchases
Payment Gateway
Payment Gateway Integration
Payment Integration Framework
Payment Processing
PayPal Integration
PCI DSS
HIPAA
SOC 2
GDPR
FinTech
Andres M.
San Diego, California
$150/hr
5.0
24 jobs
Hi, my name is Andres. I am a full stack developer with over 15 years of experience building web applications from the ground up. I specialize in data driven AngularJS and Angular applications with NodeJS backends. If you are passionate about your vision, let's talk, I will be happy to help make it a reality.
Stripe
API Integration
MySQL
Angular
AngularJS
Web Application
Bootstrap
CSS
JavaScript
Twilio API
SCSS
Database Architecture
Database Design
Azure App Service
SendGrid
How it works
Post a job for freePost a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
KD
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
DM
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
KK
Katja Krohn
Summa Linguae
How do I hire a Stripe Developer in California on Upwork?
You can hire a Stripe Developer in California on Upwork in four simple steps:
Create a job post tailored to your Stripe Developer project scope. We'll walk you through the process step by step.
Browse top Stripe Developer talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top Stripe Developer profiles and interview.
Hire the right Stripe Developer for your project from Upwork, the world's largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Stripe Developer?
Rates charged by Stripe Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Stripe Developer in California on Upwork?
As the world's work marketplace, we connect highly-skilled freelance Stripe Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Stripe Developer team you need to succeed.
Can I hire a Stripe Developer in California within 24 hours on Upwork?
Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Stripe Developer proposals within 24 hours of posting a job description.