Resume

Deepak Kumar

Software Developer focused on backend systems, AWS infrastructure, and AI-assisted engineering.

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cusat.deepak12@gmail.com +91 95346 11809 Bangalore, India Triveniganj, Supaul, Bihar 852139 linkedin.com/in/kumardeepakkg github.com/deepakkumar5396

Professional Summary

Backend-focused Software Developer with 4.5+ years of experience designing, building, and scaling production systems across eSports, FinTech, HealthTech, and Real Estate. Strong hands-on experience with Node.js, TypeScript, PostgreSQL, Neo4j, RabbitMQ, WebSockets, AWS infrastructure, payment gateway integrations, microservices, and AI-assisted engineering workflows. Proven ability to own backend architecture, cloud deployments, performance optimization, and end-to-end delivery for high-scale products.

Selected Impact

1.5M+ Total user base across the current eSports ecosystem
20K Peak active gamers supported concurrently
99.9% Production uptime across live platform delivery
Rs. 4500+ Cr Revenue influence through real-estate digitization

Core Competencies

Backend Engineering

Node.js, Express.js, NestJS, REST API Design, Microservices, WebSockets, Event-Driven Systems

Programming Languages

JavaScript, TypeScript, Python, C++, Core Java

Databases and Search

PostgreSQL, MySQL, MongoDB, Neo4j, Elasticsearch, PySpark

AWS and Infrastructure

EC2, ECS, EKS, ECR, Lambda, EventBridge, S3, CloudFront, Route 53, VPC, IAM, ALB, API Gateway, Reverse Proxy

DevOps and Messaging

RabbitMQ, Docker, Jenkins, CI/CD, Container Deployments, Release Workflows

Security, Payments, and AI

JWT, OAuth 2.0, Keycloak, Cognito, PayPal, PayTabs, PhonePe, Cashfree, ChatGPT, Claude, Gemini, Codex, GitHub Copilot

Professional Experience

Tech Lead

Techno XO

Mar 2025 - Present Bangalore, India

Node.js, MongoDB, MySQL, AWS, WebSockets

  • Leading end-to-end delivery of the full eSports ecosystem and digital store for e& (Etisalat), supporting a 1.5M+ total user base and peak concurrency of 20K active gamers.
  • Architected backend services for tournament hosting, real-time chat, top-ups, gift cards, and reward-led commerce using Node.js, WebSockets, MongoDB, MySQL, and AWS.
  • Integrated PayPal, PayTabs, PhonePe, and Cashfree to strengthen multi-gateway payment reliability across player-facing transaction flows.
  • Scaled cloud infrastructure and release workflows to sustain 99.9% uptime while mentoring a 5+ member engineering team.

SDE - 1, Corporate Identity Platform and AML

iBind Systems

Mar 2024 - Jan 2025 Bangalore, India

Node.js, PostgreSQL, Neo4j, RabbitMQ, AWS

  • Designed backend services and microservices for AML, KYC, authentication, document verification, and admin-led compliance workflows.
  • Modeled complex corporate ownership structures in Neo4j to support graph-based traversal, beneficial ownership analysis, and relationship-driven queries.
  • Implemented RabbitMQ-powered background job pipelines and bulk processing flows for reliable asynchronous operations.
  • Integrated Digilocker, SurePass, and Sandbox APIs and secured access flows with JWT, OAuth 2.0, and Keycloak.

Software Developer

Xanadu Reality

Jun 2022 - Feb 2024 Bangalore, India

Node.js, React, PostgreSQL, MongoDB, PySpark

  • Built scalable product platforms that transformed offline real-estate operations and contributed to Rs. 4500+ crore FY revenue influence.
  • Delivered high-availability portals for sales, presales, and channel partners, reducing CRM operational costs by Rs. 10L per month.
  • Developed API-driven CRM extensions and real-time cloud telephony synchronization for business-critical workflows.
  • Processed and standardized large-scale datasets using PySpark and Azure Blob Storage to improve analytics readiness and data quality.

Associate Software Developer

MFine

Aug 2021 - May 2022 Kochi, India

Node.js, React Native, Twilio, AWS S3

  • Automated consultation recording workflows using Twilio Video Composition and AWS S3, enabling seamless playback for 6M+ mobile users.
  • Improved large-dataset search and pagination performance through Elasticsearch-based query optimization.
  • Built reusable React Native UI components and theming systems to improve consistency across the MFine mobile application.

Education

Master of Computer Application (MCA)

Cochin University of Science and Technology

Jul 2018 - May 2021 | Kochi, India | CGPA 7.2

Awards

Star Performer Award 2025

Recognized for exceptional performance and successful delivery of the e& eSports ecosystem.

Projects

eMazdoor Portal

Django, React, HTML, CSS, JavaScript, Python, PostgreSQL

Built a web application connecting migrant workers with job providers.

Online Parking System

Django, HTML, CSS, JavaScript, Python

Developed a web application to discover and book parking slots online.

Additional Information

Highlights

  • 500+ data structures and algorithms problems solved
  • Experience across eSports, FinTech, HealthTech, and Real Estate
  • Languages: English and Hindi