Mid-Level Backend Engineer

Summary

Join Supra, a fast-growing startup pioneering information services in global markets, and become a Backend Engineer working on SupraScan, a blockchain-native explorer. You will design and maintain scalable backend services, optimize APIs, build indexing pipelines, and ensure system stability. The role requires proficiency in TypeScript, experience with high-concurrency environments, and knowledge of relational databases. Supra offers a fully remote, flexible work environment with competitive compensation, paid time off, and comprehensive health benefits. The company values a supportive culture that encourages professional growth and collaboration. This is an opportunity to contribute to a meaningful project and work with a diverse, globally distributed team.

Requirements

• Proficiency in TypeScript (Node.js)
• Strong understanding of system design and object-oriented programming
• Experience in high-concurrency environments and background job processing
• Solid knowledge of relational databases (e.g., PostgreSQL)
• Experience with worker queues (e.g., BullMQ, RabbitMQ)
• Familiarity with handling API rate limits, batching, and caching strategies
• Understanding of memory management and tools for diagnosing memory leaks (e.g., Node.js heap snapshots, pprof)
• Comfortable working within the members UTC +7 to +9(Asia Timezone), UTC -5 to -8 (US Timezone)
• Self-driven, proactive, and eager to learn post-onboarding

Responsibilities

• Design and maintain scalable backend services in TypeScript
• Work with PostgreSQL and explore non-relational databases where needed
• Optimize APIs and background jobs to handle high throughput and parallel processing
• Efficiently handle RPC calls and implement rate limiting, batching, and caching strategies
• Build and maintain modular, reusable indexing pipelines for on-chain data
• Design systems that gracefully handle blockchain forks and reorgs
• Write clean, maintainable, and extensible code using object-oriented programming principles
• Collaborate with a cross-functional team to ship features quickly
• Contribute to improving architecture, developer workflows, and system observability
• Continuously profile and optimize memory/resource usage for long-running services

Preferred Qualifications

• Experience with blockchain concepts, especially forks and chain reorgs
• Background in real-time or streaming data processing (Kafka, Flink, GraphQL subscriptions)
• Familiarity with Docker, GraphQL, or microservices architecture
• Exposure to monitoring tools and practices (e.g., Prometheus, Grafana)
• Knowledge of non-relational databases (e.g., Redis, MongoDB)
• Open to learning Rust or Go is a plus

Benefits

• Competitive Compensation: We offer competitive compensation packages aligned with market standards
• Work-Life Balance: Eligible team members have access to flexible paid time off, sick leave, and other time-off options, adjusted in line with local regulations
• National Holidays: We recognize national holidays specific to each team member’s country and provide paid leave in accordance with local guidelines
• Health Benefits: Comprehensive health coverage options, including medical, dental, and vision benefits, are available to full-time employees where applicable