Principal Backend Development Engineer (Web3)

Location: Kuala Lumpur, Malaysia, or Abu Dhabi, United Arab Emirates

Company

hirify.global is a cryptocurrency exchange and digital financial platform serving users across more than 200 countries and regions, with products spanning trading, payments, wealth management, custody, institutional services, and Web3.

What you will do

• Develop and maintain the Reach Platform backend across push notifications, SMS, email, WhatsApp, and other messaging channels.
• Design unified, reliable, efficient, and scalable messaging infrastructure for multiple sites and business lines.
• Build message intake, task scheduling, user routing, channel selection, provider management, frequency limits, priority scheduling, delivery callbacks, reporting, and effectiveness analysis.
• Improve reliability and observability through monitoring, alerts, logs, distributed tracing, SLOs, capacity planning, load testing, and performance optimization.
• Support compliant messaging for marketing campaigns, trading alerts, security notifications, OTPs, and system notifications.
• Collaborate with Product, Frontend, client engineering, QA, Data, Compliance, Security, Procurement, and third-party providers.

Requirements

• Bachelor's degree or above in computer science or a related field, with at least five years of backend development experience.
• Strong proficiency in Go or Java, distributed systems design, and high-concurrency messaging or queueing systems.
• Proficiency with Kafka, including event-driven architectures, consumer group management, and consumer lag monitoring.
• Familiarity with Redis caching, rate limiting, distributed locks, hot-key management, MySQL schema design and optimization, table sharding, index optimization, and slow query remediation.
• Familiarity with gRPC-based microservice communication, Nacos service discovery, Kubernetes deployments, and horizontal pod autoscaling.
• Strong system design skills and the ability to independently design technical solutions for complex requirements.
• Ownership, responsibility, proactive production alert handling, and timely incident response.
• Proficiency with AI coding tools such as Claude Code, Cursor, or GitHub Copilot for coding, code review, debugging, and solution design.
• Work location: Kuala Lumpur, Malaysia, or Abu Dhabi, United Arab Emirates.

Nice to have

• Experience developing SMS, email, or push notification systems, especially large-scale delivery, task scheduling, channel management, and reliability engineering.
• Familiarity with Firebase Cloud Messaging, Apple Push Notification service, Amazon Simple Email Service, and major SMS or communications providers, including quotas, rate limits, delivery callbacks, error analysis, and delivery rate optimization.
• Experience deploying AI capabilities in production for intelligent reconciliation, anomaly detection, operations intelligence, analytics, or agent-based workflows.

Culture & Benefits

• Study Growth Fund supporting professional development and continuous learning.
• Regular internal team-building activities, workshops, and events.
• Collaboration with an international team across global locations.
• Career advancement opportunities and internal mobility within a rapidly expanding company.