Skip to content

Software Engineer · Fintech & Payments

Building secure
payment systems.

I build secure, high-scale payment systems (AEPS, BBPS, MATM, POS, ISO 8583) that move 2M+ transactions a day. 4+ years across Java, Spring Boot, microservices, and React.

View workDownload résumé
2M+
Daily transactions
40%
Throughput gain
30%
Lower latency
4+
Years experience

About

I build the backbone of digital payments, from Micro-ATM and POS to Aadhaar payments and bill pay.

Four years and counting at IServeU, shipping systems that stay correct under load: ISO 8583 switching, NPCI and UIDAI compliance, AES-256 and HSM-backed security, and Kubernetes autoscaling that cut infra cost 30%. I lead a backend team and deliver on time.

Payments core

ISO 8583, AEPS, BBPS, MATM, POS, NPCI routing.

Scale & DevOps

Microservices, K8s (HPA), Docker, Jenkins, Grafana.

Security

AES-256, HSM tokenization, mutual SSL, HMAC, PCI-DSS.

Skills

Languages
JavaJavaScriptSQL
Frameworks
Spring BootReact.js
Backend
REST APIsMicroservices
Databases
PostgreSQLMySQLMongoDBRedis
DevOps
DockerKubernetesJenkinsCI/CD
Monitoring
GrafanaPrometheus
Payments
ISO 8583NPCIUIDAIPCI-DSS
Security
AES-256HSMMutual SSLHMAC

Experience

Nov 2022 - PresentFull-time

Module Lead

IServeU Technology Pvt. Ltd. · Bangalore, India

  • Designed scalable backends for AEPS, MATM, POS, BBPS on microservices.
  • Refactored core transaction modules: +40% throughput, -30% latency, 2x deploy velocity.
  • Migrated to Kubernetes (HPA), cutting cloud infra cost ~30%.
  • Led backend team, code reviews, 100% on-time sprint delivery.
Apr 2022 - Nov 2022Intern

Software Engineer Intern

IServeU Technology Pvt. Ltd. · Bangalore, India

  • Built core MATM and POS services on ISO 8583 transaction flows.
  • Integrated payment APIs, configured cloud envs, real-time transaction handling.
2020 - 2022MCA

Master of Computer Application

Biju Patnaik University of Technology · CGPA 8.6

Selected Work

01

MATM · Micro ATM

Secure Micro-ATM backend: cash withdrawal, balance and mini-statement via handheld terminals. Dynamic NPCI bank routing, AES-256 data protection.

ISO 8583NPCIAES-256
02

POS · Point of Sale

mPOS card-payment platform with real-time validation across banks. Switch Handler for NSDL and IPPB routing, HSM tokenization, dynamic ISO 8583.

ISO 8583HSMMulti-bank
03

AEPS · Aadhaar Payments

Aadhaar biometric payments (RD Services: Mantra, Morpho) per UIDAI. Secure PID block processing, device certification, HMAC validation.

UIDAIBiometricHMAC
04

BBPS · Bharat Bill Payment

Real-time utility bill pay on NPCI BBPS. Microservices for biller discovery, validation, payment and settlement; async for scale.

NPCI BBPSMicroservicesAsync

05 Contact

Let's build something secure.

Open to full-time Software Engineer roles, backend, full-stack, or fintech.

Email meLinkedInRésumé