Sr. Payment Engineer

This role is for one of the Weekday's clients

Salary range: Rs 5000000 - Rs 5400000 (ie INR 50-54 LPA)

Min Experience: 4 years

Location: Remote (India)

JobType: full-time

We are seeking a Senior Payment Engineer to join our core engineering team. This is a hands-on role dedicated to building ultra-low-latency infrastructure for real-time settlements across both fiat and crypto payment rails. You’ll work in a fast-paced, high-impact environment, tackling complex backend challenges at the intersection of finance and technology.

If you have experience developing high-speed financial systems, integrating payment gateways, or working with blockchain-based transactions, you’ll thrive in this role.

What You’ll Do

• Design, build, and maintain real-time, event-driven payment systems using NestJS and NodeJS.
• Integrate with both fiat payment systems (UPI, card networks) and crypto platforms (Ethereum, Polygon).
• Architect for scalability, fault tolerance, and ultra-low latency using Kafka, Redis, and PostgreSQL.
• Collaborate closely with product and infrastructure teams to deliver features from concept to production.
• Participate in code reviews, architecture discussions, and team mentoring.
• Continuously enhance performance, security, and reliability of backend services.

What We’re Looking For

• 4–6 years of experience building production-grade backend systems.
• Strong expertise in NodeJS/NestJS and asynchronous system design.
• Proven background in payment systems, financial platforms, or crypto protocols.
• Solid understanding of distributed architectures and data modeling.
• Proficiency with PostgreSQL, Redis, Kafka, and AWS.
• Strong focus on performance optimization and security best practices.

Nice to Have

• Experience with smart contract development or Web3 technologies.
• Previous work in fintech, payments, or crypto infrastructure.
• Exposure to high-frequency trading systems or payment compliance frameworks.