Abhaysinh Gaikwad

Backend Developer with 2.8+ years of experience building scalable, event-driven systems using Node.js, PostgreSQL, and AWS. Experienced in designing real-time architectures, financial systems, and integrations including payments and KYC.

Skills

Node.jsExpress.jsTypeScriptJavaScript (ES6+)REST APIServerlessEvent-Driven ArchitectureKafkaWebSocketsPostgreSQLMySQLMongoDBRedisAWS LambdaAPI GatewayS3EC2SQSSESSNSEventBridgeDockerCI/CDGitReact.jsNext.js

Experience

Senior Software Engineer TRUEiGTECH (Jan 2026 - Present)

  • Built and scaled backend systems for a real-time prediction market platform handling order execution and financial transactions.
  • Designed and implemented a custom matching engine supporting limit and market orders with multiple time-in-force conditions (GTC, IOC, FOK).
  • Developed a Kafka-based event-driven architecture for order lifecycle, trade execution, and market data processing.
  • Implemented Self-Trade Prevention (STP) logic to ensure correct trade execution and avoid conflicting orders.
  • Built fault-tolerant systems using snapshot and event replay mechanisms for reliable crash recovery.
  • Designed a ledger-based payment system ensuring consistency for deposits, withdrawals, and wallet balances.
  • Integrated KYC providers and payment gateways for secure onboarding and transactions.
  • Developed real-time WebSocket services for live orderbook updates, trades, and notifications.
  • Implemented async queue-based workflows (Kafka/SQS) to improve system scalability and reliability.
  • Built admin systems for market lifecycle management and compliance monitoring.

Software Development Engineer I PropFTX (Jul 2023 - Jan 2026)

  • Architected and maintained scalable backend services using Node.js, MySQL, and AWS (Lambda, S3, API Gateway, Cognito, VPC, SQS, SES, SNS, EventBridge).
  • Integrated secure payment and KYC systems to improve platform compliance.
  • Developed RBAC-based admin dashboards with permission-level control, data insights, and audit logging.
  • Optimized SQL queries, serverless execution time, and queue-based workflows for performance improvement.
  • Automated deployments using Docker and CI/CD pipelines.
  • Collaborated with cross-functional teams to deliver features aligned with business requirements.

Projects

Prediction Market Exchange (Trading Platform)

  • Built backend systems for a real-time prediction market platform enabling users to trade on event outcomes.:
  • Designed and implemented a custom matching engine supporting limit and market orders with multiple time-in-force conditions (GTC, IOC, FOK).:
  • Developed an event-driven architecture using Kafka for order lifecycle, trade execution, and market data processing.:
  • Implemented a ledger-based system for managing user balances, deposits, withdrawals, and transaction consistency.:
  • Built real-time WebSocket services for live orderbook updates, trade feeds, and user notifications.:
  • Integrated KYC providers and payment gateways for secure onboarding and financial operations.:

PropFTX – Fractional Real Estate Investment Platform

  • Developed backend services using Node.js, MySQL, and AWS serverless stack (API Gateway, VPC, Lambda).:
  • Integrated HyperVerge for KYC, PayU for payments, and automated invoicing using AWS SES.:
  • Optimized SQL queries and enhanced API performance for smoother onboarding and transactions.:

Phoenix – Escrow Management Application

  • Built an escrow management system with automated settlements and trustee-based workflows using Node.js and PostgreSQL.:
  • Integrated Kotak Bank APIs for virtual accounts, payouts, balance inquiries, and statement retrieval.:
  • Designed scheduled reminder workflows using EventBridge, SQS, Lambda, and SES.:
  • Developed an automated payout approval engine with queue-based processing.:

Wow-Cruze – Co-Own Asset Platform

  • Developed a slot reservation system with conflict prevention, timed slot release, and backend validation.:
  • Implemented RBAC for 10+ roles across onboarding, operations, admin, and marketing teams.:
  • Automated invoices, KYC reminders, and user notifications using SES and event-driven backend workflows.:

Education

Shivaji University

Bachelor of ArtsKolhapur, India

June 2019 - June 2022

Masai School

Full Stack Web DevelopmentBangalore, India

Aug 2022 - Jun 2023