mayank@portfolio:~$ ./introduce.sh

Hi, I'm
Mayank Gupta

Senior Backend Engineer · India

3.9+ years building scalable microservices & distributed systems. Proven track record leading teams, optimizing high-throughput pipelines, and maintaining 99.9%+ uptime across enterprise deployments — Java · Spring Boot · Kafka · Docker · K8s · AWS.

3.9+

YEARS EXP

50K+

DAILY TRANSACTIONS

99.95%

API UPTIME

350+

BUGS SQUASHED

get in touch view projects ↓ resume

● OPEN TO WORK

// 01

about me

Backend Software Engineer with 3.9+ years of experience building scalable microservices and distributed systems using Java and Spring Boot. Proven track record leading teams, optimizing high-throughput pipelines, and maintaining 99.9%+ uptime across enterprise deployments.

I'm a Senior Backend Engineer from New Delhi, India, currently based in Bengaluru, Karnataka. I work at PayU Digital Labs building enterprise-scale microservices that power fintech infrastructure.

With a background spanning 3+ years at HCLSoftware, I've led teams, designed APIs serving tens of thousands of daily transactions, and shipped production systems with 99.9%+ stability across globally deployed environments.

When I'm not architecting distributed systems or diving deep into backend internals, you'll find me gaming or reading books — always curious, always learning.

M.Tech

NIT Warangal

Construction Technology & Management · GPA 8.07/10.0

B.Tech

NSUT West Campus

Civil Engineering · GPA 8.40/10.0

        @Developer

        public class MayankGupta {

          private final String role =

            "Senior Backend Engineer";

          3.9+ // years of experience

          private final String[] loves = {

            "Microservices",

            "Kafka Streams",

            "Clean Architecture",

            "TDD"

          };

          @Override

          public String toString() {

            // SOLID · DRY · YAGNI

            return "Shipping clean code";

          }

        }

// 02

tech stack

BACKEND & ARCHITECTURE

Microservices Distributed Systems Event-Driven Architecture REST APIs System Design Multithreading / Concurrency API Design Rate Limiting

MESSAGING & STREAMING

Kafka RabbitMQ Event Streaming

FRAMEWORKS

Spring Boot Spring Cloud Spring Security Spring Data JPA Hibernate OAuth2 / JWT Spring Cloud Gateway Resilience4j JavaCC

DATABASES

PostgreSQL MySQL Redis (Caching) MongoDB Oracle SQL H2 DB2

DEVOPS & CLOUD

Docker Kubernetes AWS CI/CD Linux Grafana Prometheus OpenTelemetry Liquibase

LANGUAGES

Java Python SQL

TOOLS & PRACTICES

System Design (HLD/LLD) Design Patterns SOLID Principles Git / GitHub TDD Maven Postman Swagger / OpenAPI

// 03

experience

MAR 2026 – PRESENT ● CURRENT

PayU Digital Labs Pvt. Ltd.

Software Engineer

Developing backend services for the Token Vault platform, managing secure token lifecycle for card transactions across merchant and payment aggregator integrations.
Building high-throughput fintech infrastructure using Java · Spring Boot · Kafka · Kubernetes in a distributed, high-availability environment.

AUG 2022 – MAR 2026

HCLSoftware

Senior Software Engineer

Designed 10+ RESTful APIs serving 50,000+ daily transactions with 99.95% uptime across enterprise deployments.
Led a 5-developer Scrum team delivering End-of-Day reporting for HDFC Bank — decoupled DataLoad job with Oracle-level parallel execution, cutting report generation time by 80%.
Built Kafka-based event & notification mechanisms in HCL UnO to automate job/jobstream workflows at scale.
Introduced PostgreSQL support in HWA (40% SQL compatibility boost, 200+ tables) + MongoDB-based workflows processing 10,000+ documents daily in HCL Universal Orchestrator.
Migrated billing pipeline to REST API, reducing processing time by 45% and eliminating legacy bottlenecks.
Established CI/CD pipelines with Jenkins + Docker — deployment time slashed from 2 hrs → 20 min (6x faster).
Resolved 350+ production defects maintaining 99.9% stability across globally deployed environments.

// 04

projects

🏦

Finvista Nexus

2024

A proof-of-concept banking microservices application with 3 core services (Cards, Loans, Accounts), Gateway Server, and Config Server. Features end-to-end security via Spring Security & OAuth2 JWT, containerized on Docker Hub with 95%+ test coverage using JUnit & Mockito.

Spring Boot Microservices MySQL Docker OAuth2 Spring Security

⌥ GitHub

♟️

Project Chess

2024

A fully-featured Java chess application with a responsive Swing/AWT GUI. Complete game logic including check/checkmate detection, pawn promotion, castling, and en passant. Built using clean OOP principles and multiple design patterns.

Java Swing / AWT OOP Design Patterns

⌥ GitHub

// 06

courses & certs

Udemy

Master Java: Fundamentals, Collections, Multithreading

Jan 2026

Certified

View Certificate ↗

Udemy · KodeKloud

Kubernetes for the Absolute Beginners — Hands-on

Dec 2024

Certified

View Certificate ↗

Udemy

Master Microservices with Spring Boot, Docker & Kubernetes

In Progress

Udemy

Spring Boot 3, Spring 6 & Hibernate for Beginners

Jun 2024

Certified

View Certificate ↗

Udemy

Docker: From Zero to Hero — Hands On DevOps

Aug 2024

Certified

View Certificate ↗

Continuous Learning

Distributed Systems · Event-Driven Architecture · System Design

Ongoing

// 07

contact

Let's build something great together.

I'm currently open to new opportunities in backend engineering, distributed systems, and fintech infrastructure. Drop me a message — I reply within 24 hours.

✉

ce.mayank8@gmail.com

github.com/mayankSystems

linkedin.com/in/mayanksystems

leetcode.com/u/mayankSystems

hackerrank.com/dev_mayank8

📍

Bengaluru, Karnataka, India

Hi, I'mMayank Gupta

about me

tech stack

experience

projects

achievements

courses & certs

contact

Hi, I'm
Mayank Gupta