Who You Are

Are you an experienced engineer who is passionate about solving complex problems and seeing your solutions come to life? Do you possess a strong work ethic and a lifelong learning mindset? If so, we would love to have you on our team!

At Supra, we understand that your job does not end with the deployment of code. We are committed to creating a supportive environment that encourages personal and professional growth. We believe in empowering our staff to venture into uncharted territories and to adjust their opinions based on new information.

We value clear and reflective communication, and we challenge our team members to be the most authentic and genuine versions of themselves.

With years of experience refining your engineering skills, you are now ready to make a positive impact on the world. Supra is the perfect place for you to do just that.

Join us and work alongside a team of like-minded individuals who share your passion for building innovative solutions.

Take pride in being part of a culture that aligns with your values, and help us build a team that you genuinely enjoy working with. Apply today and become part of something truly special at Supra!

About the product you will be working on: SupraScan

SupraScan is a blockchain-native explorer built on the Supra network. We provide fast, reliable, and developer-friendly access to on-chain data. As we scale, we’re looking for a sharp backend engineer who thrives in a fast-moving, web3-native team.

What You’ll Do

- - 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

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

Nice to Have

- 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

📌 Senior Backend Engineer (Buenos Aires)
🏢 ZirconTech
📍 Buenos Aires