Upwork home
Sign up

Development & IT Consultation with Ajeet K.

4.8 · 15 reviews

Development & IT Consultation with Ajeet K.

4.8 · 15 reviews

Payments and billing, diagnosed properly.

Bring me your Stripe, Authorize.Net or PayPal setup and I'll tell you what's quietly costing you money and what to fix first.

Most payment problems are invisible. A webhook that never arrives throws no error. A subscription that stops renewing looks like a customer who churned. By the time anyone notices, the revenue is gone.

What we'll cover:

1. Failed payments: retry timing, dunning, renewal churn
2. Authorization rates and what's recoverable
3. Billing correctness: proration, trials, multi-currency
4. Payment to CRM or accounting sync
5. Webhook reliability and reconciliation
6. Architecture review before you build

Afterwards: a written summary with prioritised findings, sized by impact and effort.

For: SaaS founders and ops leads who suspect something is leaking but can't see where.

17+ years in backend and payment systems. Built recurring billing for 1,000+ subscribers including retry logic, webhooks and reconciliation. Top Rated, 100% job success.

I'll tell you honestly if you don't need custom work.
Get personalized advice on:
Ecommerce Development Web Programming crm automation payment processing point of sale & payment systems stripe authorize.net

You’re covered with payment protection so you can cancel and get a full refund up to 24 hours before your consultation.

Ajeet K.Status: Offline

About Ajeet

Ajeet K.Status: Offline
Payments & Billing Integration Specialist | Authorize.net, Stripe
100% Job Success
4.8  (15 reviews)
Mohali, India - 6:30 pm local time
Most integration problems aren't code issues. They're mapping failures, webhook timing gaps, or workflows never designed to scale. I find the root cause and fix it fast.
I'm a payments and billing integration specialist with 17+ years building systems that move money and data reliably: recurring billing, payment gateways, and clean sync between platforms and CRMs.
What I specialize in
• Payment and recurring billing logic (Stripe, Authorize.Net, PayPal)
• WooCommerce integrations (pricing, stock, product, variation sync)
• HubSpot automation (CRM sync, custom workflows, webhooks)
• Custom PHP/Laravel endpoints, CRONs, and background jobs
• Reliable API sync, data mapping, and reconciliation
Recent work
• Authorize.Net recurring billing (Laravel): subscriptions, renewals, invoice logic, status sync for 1,000+ monthly clients.
• HubSpot to Zoom webinar automation: registration, reminders, attendance sync. Cut manual admin by an estimated 90%.
• Lightspeed POS to WooCommerce sync: stock, prices, and variations mapped and synced reliably.
Why clients work with me
✔ Senior specialist who ships working systems
✔ Strong at diagnosing root-cause issues
✔ Clear communication, no fluff
✔ Reliable on urgent fixes
If your billing logic is fragile, your API sync is failing, or your CRM and store data don't match, I'll fix it cleanly and make it run reliably.

What to expect

Schedule the consultation
Choose from the freelancer’s available days and times.
Get advice for your custom needs
Share details about your project and what you want to talk about. The freelancer will review and reach out if they have questions.
Join the Zoom meeting
1-on-1 meeting with the freelancer to discuss your needs and project.
Approve the work
The freelancer will finish up the documents you asked for and send them to you for approval:
    Before the consultation

    Here’s what Ajeet will need to know before you meet

    1. Which payment provider are you using, and roughly what volume? For example: Stripe, Authorize.Net, PayPal, monthly transaction count, currencies, and whether you run subscriptions or one-off payments.
    2. What made you book this call? Describe the problem you're seeing, for example failed payments, renewals not going through, numbers not matching, or something you're about to build.
    3. What does your payment setup connect to? For example a CRM like HubSpot or Salesforce, an accounting system, or an internal database.
    4. Have you already tried anything to fix it? Knowing what you've ruled out saves us time on the call.
    5. If you can, share screenshots of your dashboard, or anything relevant like decline reports or subscription settings. Read-only access also works if you're comfortable.

    Frequently asked questions

    Rating is 4.8 out of 5.
    (15)
    5 stars
    93% Complete
    (14)
    4 stars
    1% Complete
    (0)
    3 stars
    7% Complete
    (1)
    2 stars
    1% Complete
    (0)
    1 star
    1% Complete
    (0)
    TK
    TJ K.
    4.8
    May 18, 2021
    Extend Zoom Meeting signup plugin to include Webinars
    TK
    TJ K.
    4.5
    Feb 24, 2021
    Zoom/WP/HS Meetings & Spam Prevention Ajeet and his team were excellent to work with. Highly recommended, and we’ll be using them again on future projects.
    DG
    Datta G.
    5.0
    Nov 9, 2020
    oAuth2 for Hubspot to PHP bi-directional data exchanage Ajeet is fast, expert, and a great communicator. I've hired other freelancers in the past, but have never had such good results.
    The job turned out to be more complicated than we had anticipated (all on our end), and Ajeet was able to adjust with grace and speed.

    I give him a 10 out of 10.
    SV
    Simon V.
    5.0
    Oct 13, 2020
    Experienced HubSpot API expert Highly recommend Ajeet Kumar. He performed the work exactly as requested without issue.
    TK
    TJ K.
    4.9
    Aug 14, 2020
    Zoom API Integration with WordPress & HubSpot Excellent quality of work. Very prompt and responsive. Tested thoroughly and fixed errors quickly. Communication to educate client could be better, but overall I am very happy with the work!