You will get secure Payment Gateway api integration in your app (paypal, stripe ...)
Project details
I am A techno freak, coding NINJA, with a core drive of learning different kind of software language and technology expert in integrating & troubleshooting Payment Gateways in Websites, Custom Web Pages, Mobile Apps, and Salesforce CRM.
I have worked with Payment Gateways like
-- Paypal
--Midtrans
__Mongopay
--Flutterwave
-- Stripe
-- CCAvenue
-- Authorize.Net
-- Braintree
-- PayU
-- PayTM
-- RazorPay
-- eWay
-- Mollie, and many more.
Following are the points I am able to do with stripe:
- Connect Account, Payout, transferring funds to connected account, commission etc..
- ACH payment
- Checkout
- Subscribe plan for weekly, monthly, quarterly, yearly
- Updating users card details
Single charge payment
Recurring charge payment
Customer creation
Customer subscription
Plan creation
I will add a secure Payment Gateway to your website so you can start taking either one-off payments or subscriptions (recurring billing).
It's my pleasure to help businesses achieve success.
I have worked with Payment Gateways like
-- Paypal
--Midtrans
__Mongopay
--Flutterwave
-- Stripe
-- CCAvenue
-- Authorize.Net
-- Braintree
-- PayU
-- PayTM
-- RazorPay
-- eWay
-- Mollie, and many more.
Following are the points I am able to do with stripe:
- Connect Account, Payout, transferring funds to connected account, commission etc..
- ACH payment
- Checkout
- Subscribe plan for weekly, monthly, quarterly, yearly
- Updating users card details
Single charge payment
Recurring charge payment
Customer creation
Customer subscription
Plan creation
I will add a secure Payment Gateway to your website so you can start taking either one-off payments or subscriptions (recurring billing).
It's my pleasure to help businesses achieve success.
Web Programming Project
API IntegrationProgramming Languages
PHP, JavaScript, KotlinCoding Expertise
Localization, Performance Optimization, SecurityWhat's included $480
These options are included with the project scope.
$480
- Delivery Time 2 days
- Number of Revisions 1
- Source Code
Optional add-ons
You can add these on the next page.
Fast 1 Day Delivery
+$60Frequently asked questions
34 reviews
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SD
Salvatore D.
May 4, 2026
Build a Modern E-commerce on the Aruba.it platform
It was very nice to work with Shobhit. He made sure until the end that we were happy with the result. Very helpful and patient
JA
Judah A.
Jan 20, 2026
Fantasy Sports App for NFL ( American Football )
Delivered app as I needed. Communication was clear always I enjoyed working with you and will likely use him for more touch ups on the app
ST
Sattar T.
Jan 16, 2026
Mobile App Developer for Image Analysis and Subscription Management
This freelancer had significant communication issues throughout the project. Although he operates with a team, the team members did not communicate directly with the client, which caused delays and misunderstandings. Both the freelancer and his team struggled to understand and resolve bugs in their own code. Response times were consistently slow, and in some cases messages were ignored. At times, responses were emotional or unrelated to the technical issues being discussed. Overall, the freelancer was unable to effectively follow up on the project, and it concluded with numerous unresolved bugs.
FK
Fnu K.
Dec 15, 2025
App Developer Bilingual Indonesian English Doctor+Nurse appointment app
Shobbit gave inputs that have lead to the successful creation of my project! not afraid to speak up if he sees me making a mistake. kudos to you and your team brother
FK
Fnu K.
Dec 14, 2025
revta developer
GOOD MAN THANK YOU! TELLS ME HOW TO MAKE IT BETTER! WOULD DEFINITELY WORK TOGETHER AGAIN!
About Shobhit
Ai product Architect | FullStack | Saas | Mobile App | Scalable System
82%
Job Success
Jaipur, India - 10:56 pm local time
⭐⭐⭐⭐⭐ Senior AI Engineer | Principal Software Architect | Expert Mobile App developer | Senior Full Stack developer | Flutter expert | AI-Powered Apps Development expert | Scalable SaaS & Mobile Platforms expert | Saas Solution Development expert | Complex Problem Solver | Top rated plus Fullstack developer| Enterprise Level software Architect
Building software that holds up under real users, real data, and real pressure.
In 2026, writing code is easy. Building systems that survive scale, complexity, and change is not.
I’m Shobhit Sharma, a Principal Software Architect with 10+ years of hands-on experience designing and delivering AI-powered applications, complex SaaS platforms, real-time sports systems, and production-grade mobile apps. I work at the point where products move from ideas and MVPs into reliable, revenue-generating, investor-ready software.
My clients consistently recognize me as a Clear Communicator and Collaborative partner, with a strong Commitment to Quality. I am known for being Reliable and Solution Oriented, ensuring that projects are completed professionally and with accountability for outcomes. My approach is detail-oriented, focusing on delivering high-quality results that meet client expectations.
Keywords: AI app developer, Full-stack SaaS developer, Mobile app developer, Sports app development, Backend & API systems, Startup MVP builds
Clients don’t hire me for “just development.” They bring me in when the product must work correctly—with payments, subscriptions, rankings, AI decisions, and real users depending on it.
What I Actually Do
I architect and build high-consequence software systems end to end:
AI-powered application development (LLM features, RAG pipelines, vector search, document intelligence, automation)
Full-stack SaaS development (multi-tenant systems, subscriptions, billing, RBAC, analytics, admin panels)
Mobile app development for iOS & Android (Flutter / React Native, offline-first, real-time sync)
Complex sports & gaming platforms (fantasy sports, competitions, leaderboards, matchmaking, anti-cheat logic)
Scalable backend & API development (Node.js, Python, event-driven systems, WebSockets)
Cloud architecture & DevOps (AWS/GCP, Docker, CI/CD, monitoring, security)
I design systems to behave predictably under unpredictable usage.
How I Think (This Is the Difference)
Most bugs don’t come from missing features—they come from bad state management, unclear data ownership, and hidden edge cases.
My work focuses on:
Transaction safety (wallets, payments, subscriptions)
State machines over ad-hoc logic
Clear data models and invariants
Auditability and traceability
Scaling without rewrites
AI features that are explainable, secure, and cost-aware
Whether it’s an AI SaaS, a mobile-first platform, or a real-time sports engine, I design for the moment when things go wrong—not just when demos look good.
Areas I’m Commonly Hired For (Search-Relevant)
AI app developer / AI-powered app development
Full-stack SaaS developer
Mobile app developer (Flutter / React Native)
Sports app & fantasy platform development
Complex backend & API systems
Startup MVP / MSVP builds that must scale
Refactoring systems built fast but needing to be built right
Technical Stack (Production-Proven)
Mobile: Flutter, React Native, native iOS/Android integrations
Frontend: React, Next.js, TypeScript, Tailwind
Backend: Node.js, FastAPI, Python, REST, GraphQL, WebSockets
AI/ML: OpenAI / LLMs, LangChain, Vector Databases, Whisper, OCR, Recommendation Systems
Databases: PostgreSQL, MongoDB, Redis
Cloud & DevOps: AWS, GCP, Docker, Kubernetes, CI/CD
Payments & FinTech: Stripe, subscriptions, wallets, secure payment flows
Selected Work
MinaTravel — AI-powered travel planning using OCR + LLM workflows
Doctor Anywhere — large-scale telehealth mobile apps & backend systems
Simplay / Knockout11 — real-time fantasy sports platforms with wallets and competitions
(Additional enterprise SaaS, e-commerce, and mobile products available on request.)
How Engagements Usually Work
Short discovery call (problem, platform, scale)
Architecture & phased roadmap
Build → QA → secure launch
Ongoing optimization and scale support
I work with a limited number of clients to maintain quality, focus, and accountability.
If you’re looking for an AI developer, SaaS architect, mobile app expert, or sports platform engineer who can own complexity end to end—and explain decisions clearly—I’m a strong fit.
Send a brief with what you’re building and how big it needs to get. I’ll respond with a clear technical plan and next steps.
Shobhit Sharma
Founder, Velupr Infosoft
Principal Software Architect | AI • SaaS • Mobile • Real-Time Systems
Steps for completing your project
After purchasing the project, send requirements so Shobhit can start the project.
Delivery time starts when Shobhit receives requirements from you.
Shobhit works on your project following the steps below.
Revisions may occur after the delivery date.
Gather Requirements in details
Before starting the work I would like to know in details what my client is expected.
statement of work
Once I got requirement from the client. I will send the statement of work the client.