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Abhishek User

@abhishekuser12

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Full Stack Developer specializing in secure, scalable fintech platforms and integrations.

India

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What I'm looking for

I seek roles building secure, scalable fintech systems with strong emphasis on API/payment integrations, automation, and a culture that values testing and system design.

I am a Full Stack Developer with 2.5 years of fintech experience building secure, enterprise-ready platforms for banking, trade finance, and supply chain finance. I have contributed to multi-bank messaging (CImplr), trade automation (Tradeasy), and supply chain finance (PayEarly), focusing on API and payment gateway integrations and compliance.

At Cashinvoice I migrated legacy systems to Oracle, implemented multi-DB Sequelize model generation, and built a high-performance export engine processing 100K+ records daily, while championing TDD to reach over 87% coverage on critical modules. Previously, I led Node.js server-side work at Latitude Technolabs, delivered integrations for payments and banks, and worked with international clients to deliver BLC solutions ahead of schedule.

I prioritize scalable architecture, security (PCI DSS, VAPT, RBAC), and automation to reduce manual effort and improve system reliability. I enjoy solving complex system-design problems and delivering measurable performance and developer productivity improvements.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Indinvoice Tech Solutions Private Limited

May 2025 - Present (7 months)

Migrated legacy systems to Oracle with automated Sequelize model generation, built a high-performance export engine processing 100K+ records daily, and championed TDD to achieve 87%+ coverage across critical fintech modules.

Sequelize Oracle Javascript (ES6)Socket.IO TDD Docker RESTful APIs CI CD

Jr Full Stack Developer

Indinvoice Tech Solutions Private Limited

May 2024 - Apr 2025 (11 months)

Developed Angular and Node.js fintech applications, integrated HDFC, Cashfree and Ccavenue payment gateways, delivered Federal Bank API automation, and implemented MSAL SSO and RBAC to support PCI DSS/VAPT compliance.

Angular Node Payment Gateways RBAC PCI DSS RESTful APIs MySQL MongoDB

Node Js Developer

Latitude Technolabs Pvt Ltd

Jun 2023 - Apr 2024 (10 months)

Led Node.js server-side development for scalable fintech features, built property suggestion algorithms improving acquisition ~2%, and delivered a BLC product for Japanese client JERA ahead of schedule.