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 Arts — Kolhapur, India

June 2019 - June 2022

Masai School

Full Stack Web Development — Bangalore, India

Aug 2022 - Jun 2023