You will be a Senior TypeScript Engineer responsible for designing, building, and operating backend systems and indexers that power Startale’s suite of Web3 products - including our wallet and other on-chain applications.
Your primary focus will be on developing production-grade indexers that ingest, transform, and serve blockchain data for use across Startale’s platforms. You’ll design systems that are scalable, reliable, and maintainable under real-world conditions - ensuring our products have access to accurate, low-latency on-chain data.
This is a senior, hands-on engineering role requiring strong backend fundamentals, deep familiarity with blockchain data models, and experience operating complex systems in production. You’ll work closely with product, protocol, and infrastructure teams to deliver data services that underpin seamless Web3 experiences.
Key Responsibilities- Design, build, and operate production-grade blockchain indexers using TypeScript and modern frameworks.
- Develop and maintain backend APIs and services that provide structured blockchain data to Startale’s products.
- Model and manage relational data with PostgreSQL, ensuring efficient schema design and query performance.
- Use and extend indexing frameworks (e.g., The Graph, Subsquid, or custom-built solutions) to support diverse on-chain data needs.
- Ingest and process blockchain events, transactions, and states into consistent, queryable datasets.
- Build and maintain monitoring, alerting, and observability tools for indexer and service reliability.
- Collaborate with cross-functional teams to design data pipelines and integration layers for on-chain applications.
- Continuously optimize ingestion throughput, data accuracy, and scalability under production workloads.
TypeScript Backend Development
- Strong proficiency in TypeScript and Node.js backend frameworks (e.g., NestJS, Fastify, Express).
- Proven experience developing and maintaining production backend systems.
Relational Database Expertise
- Deep knowledge of PostgreSQL - schema design, indexing strategies, and query optimization.
- Experience managing database consistency and schema migrations in production.
On-Chain Data Indexing (Production Experience Required)
- Demonstrated experience building and operating indexers in production environments.
- Strong understanding of blockchain data indexing patterns (event sourcing, block scanning, incremental sync).
- Ability to rapidly build, deploy, and scale indexers using frameworks like The Graph, Subsquid, or equivalent.
- Experience handling indexer reliability challenges - reorgs, resyncs, scalability, and performance tuning.
Operational Excellence
- Solid understanding of observability (metrics, logs, traces) and system health monitoring.
- Comfortable diagnosing and resolving production issues in distributed systems.
Big Bonus
- Experience with real-time data streaming technologies (Kafka, NATS, or similar).
- Familiarity with ETL pipelines and incremental sync architectures.
- Experience containerizing and deploying services using Docker.
- Knowledge of Web3 infrastructure or blockchain node APIs.
- Contributions to open-source indexing or blockchain tooling projects.
- Build core infrastructure powering Startale’s Web3 wallet and ecosystem applications.
- Work on systems that bridge cutting-edge blockchain data with real user experiences.
- Collaborate with world-class engineers in a technically ambitious, high-impact environment.
- Competitive compensation, ownership opportunities, and a direct role in shaping the Web3 data layer.
Top Skills
What We Do
Headquartered in Singapore, Startale Group is a global leader in Web3 infrastructure development. Our mission is to unleash the potential of humanity through the open internet. By onboarding the next billion users onchain, we are shaping the future of Web3.
The centerpiece of our efforts is Soneium, a next-generation Ethereum layer-2 blockchain, born from a joint venture with Sony Group. Soneium is designed to bridge the gap between blockchain (Web3) and traditional internet services (Web2), making blockchain technology more accessible and useful in everyday life. This collaboration seeks to establish Soneium as a core global infrastructure, advancing Web3 experiences for billions of users.
Startale Cloud Services offers comprehensive infrastructure to support developers, businesses, and individuals building and scaling Web3 applications. This platform is instrumental in accelerating the deployment and adoption of decentralized technologies across industries, laying the foundation for the future of Web3.
Astar Network connects you to web3. It is the gateway for projects across enterprises, entertainment & gaming in Japan and beyond, driving global adoption and delivering web3 to billions. Astar leverages a multi-layered tech stack powered by Polygon and Polkadot to offer customizable blockchain solutions that accelerate web3 adoption. With zk-powered Ethereum L2 Scaling (zkEVM), EVM, WASM, and a cutting-edge ecosystem, Astar delivers robust, secure, and interoperable web3 technology.
Through innovation, strategic partnerships, and collaboration with industry leaders like Sony Group, Startale Group continues to lead the charge in making blockchain technology a part of daily life for billions of people worldwide.
