Sourabh Karmarkar

Software Engineer

Pune, Maharashtra, India7 yrs 5 mos experience

Key Highlights

  • Expert in building scalable platforms with modern technologies.
  • Proven track record in high-load production environments.
  • Strong background in full-stack development and system architecture.
Stackforce AI infers this person is a Full-Stack Developer with expertise in Gaming and Blockchain technologies.

Contact

Skills

Core Skills

NodejsReactjsKubernetesMongodbNode.jsJavascript

Other Skills

AWSAgile MethodologiesAlgorithmsAngularAuto ScalingBootstrapC#CDNCascading Style Sheets (CSS)CloudwatchCode ReviewDockerEKSElastic CacheEthereum

About

Crafting Robust, Scalable Platforms and Cultivating a Culture of Engineering Excellence

Experience

7 yrs 5 mos
Total Experience
1 yr 7 mos
Average Tenure
10 mos
Current Experience

Opengov inc.

SDE3

Aug 2025Present · 10 mos · Pune, Maharashtra, India · On-site

Games24x7

2 roles

SDE 2

Promoted

Apr 2024Aug 2025 · 1 yr 4 mos · Hybrid

  • Games24x7 is one of India’s largest online gaming companies, operating popular platforms such as RummyCircle (50M+ users) and My11Circle (10M+ users), offering large-scale fantasy and skill-based gaming experiences.
  • Implementing new features and handling production issues, performance environments, observability, logging, alerting of services using NodeJS, ReactJS, Python, MongoDB, Docker, Kubernetes, AWS (Elastic Cache, EKS, Load Balancing, Auto Scaling, CDN, Route53, Lambda, Cloudwatch etc.)
  • System architechture and setups using different devops tools like Jenkins, Terraform, and AWS.
  • Migration of various high scale NodeJS systems from traditional EC2 based AMD setups to K8 + ARM based setups along with implementing canary deployment strategies and automation for better resiliency and fault tolerance.
  • Worked on platform engineering techniques like segregating single infra into multiple infra for different products in NodeJS, Docker and Kubernetes
NodeJSReactJSPythonMongoDBDockerKubernetes+9

SDE 1

Mar 2023Apr 2024 · 1 yr 1 mo · Hybrid

  • Led maintenance and scaling efforts for high-load production databases, including MongoDB and Redis, ensuring reliability and performance under heavy traffic conditions.
  • Implemented API-level flow tracking and database operation metrics, significantly improving observability and monitoring of high-throughput API flows—scaling up to 40,000 requests per second (RPS).
  • Developed a frontend portal for managing promo codes used across various games, enhancing usability and control for internal stakeholders.
  • Built and maintained internal tools and dashboards for Marketing and Customer Support teams, leveraging ReactJS, Redux, and TypeScript, with backend support via Node.js proxies for efficient data handling and service integration.
MongoDBRedisReactJSReduxTypeScriptNode.js

Xooa

Full Stack Developer

Jul 2022Feb 2023 · 7 mos · Pune, Maharashtra, India · Hybrid

  • Worked as a Full Stack Developer at Xooa, contributing to the development of new features for its low-code blockchain platform.
  • Utilized modern technologies including ReactJS, Node.js, Serverless Framework, and AWS, along with blockchain frameworks such as Ethereum and Hyperledger Fabric.
  • Owned and executed the end-to-end software development lifecycle (SDLC)—from requirement gathering and API design to development, functional/performance/regression testing, and production deployment.
  • Collaborated closely with cross-functional teams and stakeholders to ensure feature alignment with business objectives and to deliver robust, scalable solutions.
ReactJSNode.jsServerless FrameworkAWSEthereumHyperledger Fabric

Excellarate

Full Stack Developer

May 2021Jul 2022 · 1 yr 2 mos · Pune, Maharashtra, India · Hybrid

  • Designed and developed the core architecture for Envista’s Order Management System (OMS), enabling scalable and efficient order processing workflows.
  • Contributed to both backend and frontend development, leveraging Node.js for server-side logic and a combination of Angular and ReactJS for responsive, user-friendly interfaces.
  • Played a pivotal role in building a robust, modular system architecture, facilitating future feature expansion and maintainability.
Node.jsAngularReactJSMongoDB

Synerzip

2 roles

Junior Software Engineer

Jun 2019May 2021 · 1 yr 11 mos · Pune, Maharashtra · Hybrid

  • Developed data extraction pipelines on the Import.io platform, focusing on web scraping and web data integration using JavaScript and Node.js.
  • Built scalable solutions to automate the collection and transformation of structured data from diverse web sources, enabling efficient downstream processing and analytics.
  • Designed and developed the overall project architecture, including RESTful APIs and database schema for the Timbukmove (Goods and Package Movers) platform, using Node.js, Express.js, and ReactJS.
  • Implemented core features such as Email Verification and JWT-based Authentication, ensuring secure and reliable user access.
  • Actively contributed to bug fixing, code optimization, and technical troubleshooting, while also taking initiative in task delegation and supporting team members in resolving complex issues.
JavaScriptNode.jsExpress.jsReactJS

Trainee Engineer

Nov 2018May 2019 · 6 mos · Pune, Maharashtra · Hybrid

  • Learnt various web development technologies and created MVP's for company clients.
  • Bugfixing and contributions for other client projects in technologies like Android, React, MongoDB, NodeJS, GraphQL and Python
HTMLFront-End DevelopmentSQLBootstrap

Loft analytics

Online Business Analyst

Feb 2016May 2016 · 3 mos · Pune

Education

Maharashtra Education Societys Institute of Management and Career Courses IMCC

Master of Computer Applications - MCA — Computer Application

Jan 2016Jan 2019

Marathwada Mitra Mandal's College of Commerce, Pune 04

Bsc Computer Science — Computer Science

Jan 2013Jan 2015

P Jog Junior College

HSC — Science

Jan 2010Jan 2012

Abhinav Vidyalaya

SSC

Jan 1997Jan 2010

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