0+ years building the future of payments

Coder by Day.

Gamer by Night.

and a Full-time Overthinker.

Pushing the boundaries of payments & AI — from ISO 8583 to serverless GPU infrastructure.

Technical Lead building payment systems (ISO 8583, ISO 20022, EMV, NFC) at scale. Founder of iso8583.studio & AiCortex.

A digital nomad converting the impossible to I AM Possible.

0+Years Exp.

0+Countries

0+Companies

Sourabh Kaushik — Payments Expert, ISO 8583 Specialist, AI Infrastructure Architect, Technical Lead

Tech Lead

ISO 8583 Expert

NFC & POS

AI Infra

Experience

Where I've Worked

Building payment systems and Android solutions across the globe.

Technical Lead - Swipe (POS)

Resilient Innovation Pvt. Ltd. (BharatPe)

2025POSAndroidPaymentsFintech

Leading the Swipe (POS) team at BharatPe, India's leading fintech platform trusted by over 1.3 crore merchants across 450+ cities. Building and scaling Android-based POS solutions that power Rs 29,000 crore in annual transactions, enabling merchants to accept debit cards, credit cards, and QR payments through BharatPe's all-in-one payment devices.

Tech Lead Middleware

Ingenico International India Pvt. Ltd.

2024-2025POSMiddlewarePayments

Enhancing the commerce experience, with payments solutions that are smarter, more connected, and tailored to drive your success. From advanced payment methods to data insights and partner integration, our solutions add value and help you, and your customers, do more through payments.

Technology Manager

Saro Tech solutions Pvt. Ltd.

2023Cards ManagementPaymentsAndroid SDK

Delivering the mission-critical real-time payment software solutions that enable corporations to process and manage digital payments, power omni-commerce payments, present and process bill payments, and manage fraud and risk.

Tech Stack

Technologies I Work With

Kotlin

jetpack

Java

Python

Android

POS

Kubernetes

Kafka

AWS

Mysql

Postgresql

serverless

Pytorch

Recognition

Key Achievements

AIR 7 in Smart India Hackathon

Designed a Bluetooth Low Eneryg(BLE) based proximity navigation system using triangulation method where we can also know the altitude i.e. on which floor we are on. This method much more accurate then standard GPS has error of 1 meter only, Later which was used by Emaar Malls Group LLC in there dubai mall app

ISRO

Zeta Hack 2.0 winner

Designed a peer-to-peer payment system using NFC. Redesigned and implemented a peer-to-peer payment system using NFC. That payment can be made just touching back panel of devices.

Zeta Next-Gen Cards

Timeline

My Journey

Resilient Innovation Pvt. Ltd. (BharatPe)

TL - Swipe (POS)

Leading the Swipe (POS) team at BharatPe, building Android-based POS solutions powering Rs 29,000 crore in annual transactions across 1.3 crore+ merch...

July-2025Present

Resilient Innovation Pvt. Ltd. (BharatPe)

TL - Swipe (POS)

Leading the Swipe (POS) team at BharatPe, building Android-based POS solutions powering Rs 29,000 crore in annual transactions across 1.3 crore+ merch...

July-2025Present

June-2024June-2025

Ingenico International India Pvt. Ltd.

Tech Lead Middleware

Tech Lead Middleware at Ingenico. Enhancing the commerce experience with smarter, more connected payment solutions.

Ingenico International India Pvt. Ltd.

Tech Lead Middleware

Tech Lead Middleware at Ingenico. Enhancing the commerce experience with smarter, more connected payment solutions.

June-2024June-2025

Saro Tech solutions Pvt. Ltd.

Tech Manager

20232024

Saro Tech solutions Pvt. Ltd.

Tech Manager

20232024

20222023

PayU Payment Pvt. Ltd.

SSE

Senior Software Engineer at PayU. Researching and redefining payment experiences on Android through advanced development with PayU SDK.

PayU Payment Pvt. Ltd.

SSE

Senior Software Engineer at PayU. Researching and redefining payment experiences on Android through advanced development with PayU SDK.

20222023

First International Trip

Trip

Visited my office in Dubai -> Angola -> Nigeria -> portugal->... to Lead the team in POS development

20212022

First International Trip

Trip

Visited my office in Dubai -> Angola -> Nigeria -> portugal->... to Lead the team in POS development

20212022

20182022

NowNow Digital payment Systems

Junior Developer -> Senior Software Developer

Developing dynamic POS, mPOS, and SoftPOS and extensions for businesses. Probing location, master key/ session Management and Hardware Module(HM) main...

NowNow Digital payment Systems

Junior Developer -> Senior Software Developer

Developing dynamic POS, mPOS, and SoftPOS and extensions for businesses. Probing location, master key/ session Management and Hardware Module(HM) main...

20182022

National level Hack Win

Smart India Hackathon '18

Won prize for developing offline precise naviation system

20182018

National level Hack Win

Smart India Hackathon '18

Won prize for developing offline precise naviation system

20182018

20152019

Guru Gobind Singh Indrprastha University(GGSIPU)

Education

B.Tech in Electronics and communication with specialization in Robotics

Guru Gobind Singh Indrprastha University(GGSIPU)

Education

B.Tech in Electronics and communication with specialization in Robotics

20152019

Sourabh Kaushik — Payments Technology Expert & AI Infrastructure Architect

Sourabh Kaushik is a leading payments technology expert with 7+ years of experience building payment systems across India, Africa, the Middle East, and Europe. As Technical Lead at BharatPe, he powers Android-based POS solutions processing Rs 29,000 crore in annual transactions for 1.3 crore+ merchants across 450+ cities.

Payment Systems Expertise

Specializing in ISO 8583 payment protocol integration, ISO 20022 messaging standards, EMV certification (Level 1, Level 2, Level 3), NFC contactless payment systems, card payment processing (debit cards, credit cards), QR payments, UPI payments, POS terminal development, mPOS, SoftPOS, payment middleware, payment gateway architecture, HSM (Hardware Security Module) integration including Thales PayShield 10K, acquirer and issuer processing, and transaction orchestration with 99.99% uptime and 50ms latency.

iso8583.studio — Professional Payment Simulation Platform

Founder of iso8583.studio, a professional desktop application for Windows, macOS, and Linux that simplifies financial transaction processing. Features 55+ tools, 9 simulators (Host Simulator, HSM Simulator, POS Simulator, APDU/Card Simulator, Acquirer Simulator, Issuer Simulator), and support for 15+ HSM vendors. Enterprise services include EMV Certification Consultancy (50+ successful certifications, 100% success rate), Payment Middleware, Cloud Simulators, and Kernel Development.

AiCortex — Next-Generation AI Infrastructure Platform

Founder of AiCortex, a next-generation AI infrastructure platform featuring 7 integrated services: Auth Module, Instance Management (serverless GPU orchestration with H100, A100, V100), Data Input Streams, ZeroCore (guided ML development), Model Hub (12,847+ models), CortexFlow (distributed training with Bayesian hyperparameter optimization and ML regression), and CortexLogs. Delivers 70% cost reduction, supports 175B+ parameter models, and maintains 99.9% uptime SLA.

Career Highlights

Technical Lead — Swipe (POS) at BharatPe (Resilient Innovation Pvt. Ltd.)
Tech Lead Middleware at Ingenico International India Pvt. Ltd.
Technology Manager at Saro Tech Solutions Pvt. Ltd.
Senior Software Engineer at PayU Payment Pvt. Ltd.
Senior Software Developer at NowNow Digital Payment Systems
Zeta Hack 2.0 Winner — NFC Peer-to-Peer Payment System
Smart India Hackathon AIR 7 — BLE Navigation System for ISRO

Technologies

Kotlin, Java, Python, Android, Jetpack Compose, POS, Kubernetes, Kafka, AWS, MySQL, PostgreSQL, Serverless, PyTorch, ISO 8583, ISO 20022, EMV, NFC, HSM, TCP/IP, REST APIs, payment processing, transaction orchestration, distributed systems, machine learning, regression testing, model deployment, GPU computing.

Payments Consultancy & Advisory

Available for consulting in payments architecture, POS system design, ISO 8583 integration, ISO 20022 migration, EMV certification, NFC payment implementation, payment gateway development, and AI/ML infrastructure deployment. Serving enterprises across India, UAE, Nigeria, Angola, Portugal, and Brazil.