Subham Satapathy - FullStack Developer

AboutAbout SkillsSkills ExperienceExperience ProjectsProjects ContactContact

I'm Subham Satapathy, a

Software Engineer

with more than 3.2 years of experience

I turn ideas into reality through pressing keys

Results-oriented achiever with proven ability to exceed targets and drive success in fast-paced environments. Combines strategic thinking with hands-on experience to deliver impactful solutions and enhance organizational performance.

Tech Stack

Technologies I have got my hands dirty with

AWS

Node.js

Solidity

PostgreSQL

JavaScript

TypeScript

Next.js

React.js

Express.js

Docker

CI/CD

Experience

My professional journey and accomplishments

March 2025 - May 2025

Full Stack Developer at Kaika (Part-time, Remote)

Designed and implemented UI/UX for the Kaika agency website, incorporating animations and sliding grids for an engaging user experience.

Key Achievements:

•Designed and implemented UI/UX for the Kaika agency website with animations and sliding grids

•Developed a Telegram bot for KOL onboarding and deal management with seamless account management

•Integrated brand and KOL onboarding via Privy, linking social accounts for frictionless authentication

•Stored and managed 1,000+ KOL profiles in PostgreSQL with structured flow and pre-populated social data

•Leveraged Claude AI for NLP-based text parsing, converting unstructured messages into structured deal formats

•Implemented JWT authentication with auto-rotation for secure access control across protected endpoints

ReactNode.jsPostgreSQLTelegram Bot APIPrivyClaude AIJWTNLP

November 2024 - March 2025

Full Stack Developer at Mercle (Part-time, Remote)

Engineered scalable infrastructure on AWS using Terraform, automating cloud provisioning for over 50+ services, resulting in a 40% reduction in deployment times.

Key Achievements:

•Engineered scalable AWS infrastructure using Terraform for 50+ services, reducing deployment times by 40%

•Developed optimized queries for blockchain data from RPC endpoints, processing 500,000+ user transactions

•Built and maintained parsers for 50+ blockchain protocols, processing 10+ million user transactions

•Designed secure backend APIs for Web3 wallet authentication, improving user sign-in rates by 30%

•Managed domain infrastructure on AWS Route 53 for 10+ domains, reducing content delivery latency by 25%

•Architected ECS clusters handling 1 million+ requests per day with reliable, cost-effective deployment

•Set up CI/CD pipelines using GitHub Actions and AWS CodeDeploy across 15+ repositories, reducing deployment failures by 20%

•Developed advanced scripts analyzing ERC20 transactions for 2+ million users at 1,000 transactions/second

AWSTerraformPostgreSQLNode.jsWeb3BlockchainECSCloudFrontGitHub ActionsERC20

March 2022 - Present

Software Engineer at Travelex (Full-time, Mumbai, India)

Implemented critical tasks using EIF (Enterprise Integration Framework) – Travelex's internal framework for ETL processes – leveraging Node.js and hosting on AWS.

Key Achievements:

•Implemented ETL processes using EIF framework with Node.js on AWS, processing 10+ million records daily

•Enhanced cloud security by implementing IAM role policies across 35+ repositories, reducing security risks by 40%

•Created and managed AWS resources (S3, API Gateway, SQS, DynamoDB, Lambda, CloudFormation) improving deployment efficiency by 30%

•Implemented robust CI/CD pipelines using CircleCI across 20+ repositories, reducing deployment times by 25%

•Developed real-time APIs for Travelex POS systems handling 100,000+ requests/day for secure transaction processing

Node.jsAWSEIFS3API GatewaySQSDynamoDBLambdaCloudFormationCircleCIServerless

Featured Projects

A showcase of innovative solutions spanning Web3, AI/ML, and Full-stack development, demonstrating technical expertise and real-world impact.

Job Scheduler Microservice

CompletedBackend • Microservices

A high-performance, scalable job scheduler microservice built with Node.js, TypeScript, and BullMQ. Features comprehensive rate limiting, job management, and load testing capabilities for enterprise-grade applications.

Key Features & Impact:

•Built scalable microservice handling 100+ RPS average with 200 RPS peak capacity and <200ms p95 response time

•Implemented multi-layer rate limiting system with IP-based, service-based, and global protection mechanisms

•Developed comprehensive job scheduling system supporting one-time and recurring jobs with cron expressions

•Created robust load testing suite validating performance targets with 99.9% availability requirements

•Architected Redis-based caching layer achieving >80% cache hit rate for optimized performance

•Built Docker-containerized deployment with PostgreSQL and Redis integration for production scalability

Node.jsTypeScriptBullMQPostgreSQLRedisDockerJestExpressDrizzle ORM

View Code

ORO - Trading Platform

CompletedFinTech • Trading

A comprehensive cryptocurrency trading platform featuring a high-performance matching engine and modern web client. Built with TypeScript, it implements sophisticated order matching algorithms and real-time trading capabilities.

Key Features & Impact:

•Developed high-performance trading engine with price-time priority matching algorithm for optimal trade execution

•Built comprehensive order management system supporting CREATE and DELETE operations with real-time processing

•Implemented sophisticated order book maintenance with live updates and trade generation capabilities

•Created modern Next.js web client with responsive trading interface and real-time market data visualization

•Architected dual-component system with separate engine and web-client for scalable trading operations

•Designed robust order processing pipeline handling BTC/USDC pair trading with precise limit price execution

TypeScriptNext.jsNode.jsReactTrading AlgorithmsOrder MatchingReal-time Processing

View Code

Momentum - Web3 Task Manager

CompletedWeb3 • DApp

A decentralized task management platform that revolutionizes productivity by rewarding users with MOM tokens for completing tasks. Combines blockchain technology with modern web interface to build habits through tokenized incentives.

Key Features & Impact:

•Developed comprehensive Web3 task management DApp with ERC20 token rewards system for productivity gamification

•Built secure smart contracts (TaskManager.sol & MOMToken.sol) with EIP-712 signed messages and replay attack protection

•Implemented gasless operations using permit functionality and nonce tracking for enhanced user experience

•Created full-stack application with Next.js 15, React 19, and MongoDB handling task verification and blockchain interactions

•Architected security-first smart contracts with OpenZeppelin standards, access control, and maximum reward limits

•Deployed production-ready DApp with responsive design, MetaMask integration, and GraphQL data management

SolidityNext.jsReactTypeScriptEthers.jsMongoDBGraphQLHardhatOpenZeppelinTailwindCSS

View Code Live Demo

Job Scraper & API Service

CompletedData Engineering • API

A high-performance job scraping service that extracts job listings from Amazon, Google, and Microsoft career pages. Built with Bun runtime, it processes data and serves results through a REST API with automated scheduling capabilities.

Key Features & Impact:

•Built enterprise-grade web scraper extracting job listings from Amazon, Google, and Microsoft career pages using Puppeteer

•Developed high-performance REST API with Bun runtime for ultra-fast job data retrieval and filtering capabilities

•Implemented robust data processing pipeline storing job listings in PostgreSQL database via Prisma ORM

•Created automated cron-based scheduling system for continuous job data synchronization and updates

•Architected scalable API endpoints supporting advanced filtering and search functionality for job discovery

•Designed resilient scraping infrastructure handling dynamic web content and anti-bot protection mechanisms

BunTypeScriptPuppeteerPostgreSQLPrismaREST APIAxiosCron JobsWeb Scraping

View Code

Optimal Bridge Path Finder

CompletedWeb3 • DeFi Infrastructure

A sophisticated blockchain infrastructure service that finds the most cost-efficient bridge paths for cross-chain asset transfers. Built with TypeScript and Bun, it optimizes DeFi operations through intelligent route calculations and fee analysis.

Key Features & Impact:

•Developed advanced bridge path optimization algorithm for cross-chain asset transfers with cost-efficiency analysis

•Built comprehensive blockchain interaction service supporting multiple chains and bridge protocols

•Implemented intelligent route calculation system analyzing bridge fees, gas costs, and transfer times

•Created robust API service processing bridge path requests with user balance verification and validation

•Architected high-performance backend with Bun runtime achieving optimal response times for DeFi operations

•Deployed production-ready service with comprehensive testing suite and real-time bridge fee monitoring

TypeScriptBunBlockchain APIsDeFi ProtocolsBridge NetworksCost OptimizationREST API

View Code

Task Manager - Kanban Board

CompletedFull-Stack • Enterprise

A modern and responsive task management application featuring a Kanban board interface. Built with React, TypeScript, and Material-UI, it provides comprehensive task management capabilities with enterprise-level features and user experience.

Key Features & Impact:

•Developed comprehensive full-stack task management application with modern Kanban board interface

•Built responsive React frontend with Material-UI components ensuring optimal experience across all devices

•Implemented advanced task management features including creation, editing, deletion, and status tracking

•Created intuitive user interface with drag-and-drop functionality for seamless task organization

•Architected backend API for efficient task data management and real-time synchronization

•Integrated snackbar notifications and confirmation dialogs for enhanced user experience and data safety

ReactTypeScriptMaterial-UIJavaScriptCSSAPI IntegrationKanban BoardResponsive Design

View Code

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