Backend Engineer

Cowchain blockchain development company is actively looking for Backend Engineer to join our development team.
Cowchain have successfully completed 150+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

Who we are?
We’re at the core of fintech innovation, building a decentralized financial ecosystem that merges traditional banking with blockchain and AI. Our mission is to make wealth accessible to all through products like hybrid card-crypto wallets, used by 70,000+ paying clients across 40+ countries. We’re a worldwide team working remotely from over 20 countries, operating from Dubai, seeking a Backend Engineer to own a tech vertical.

Role Overview

As Backend Engineer, you will own the development, support and optimization of the back-end services with the wider product ecosystem. 

You’ll maintain our production back-end services, ensuring all the issues are being monitored and fixed as well as architect new extended functionality and improve existing services.

Key Responsibilities

Architecture & Development

• Collaborate with backend team on event-driven architectures (Kafka, NestJS microservices).
• Build and maintain APIs using Java and Node.js
• Continuous PostgreSQL database optimization 

Security & Reliability

• Implement financial transaction flows, referral bonus system, and validation logic.
• Conduct and supervise the QA process.
• Establish monitoring, alerting, and incident response standards

Culture & Collaboration

• Review architecture proposals and ensure alignment with tokenomics and business logic.
• Work closely with the CTO and Product Owner and Contribute to building engineering processes in an early-stage environment.
• Collaborate with Delivery Manager for rapid product delivery.

Additional Requirements

• 7+ years of backend software engineering experience, focusing on scalable systems. 
• Hand-on experience to modernize legacy systems and integrate new solutions
• Fluent English (written/spoken)

What else is important

• Location: Dubai-based or remote in EU timezone. Covered business trips every 2-3 months are possible.
• Close collaboration with three tech leads, CTO, and a delivery manager in a star team.
• Culture: Zero tolerance for conflicts, focus on business and results.

What we offer:

• Flexible working schedule, remote work.
• Competitive salary.
• Paid vacations, sick leaves.
• Comprehensive insurance (dental, vision, top Dubai hospitals). 
• Family relocation support: visas, tickets, document assistance. 
• Unlimited vacation (with reasonable use). 
• Access to top DeFi conferences, including our own events.
• 100% friendly/family team.