Blockchain Data Engineer

What are we all about? We are a team of world class builders and researchers with expertise across several domains: Ethereum Protocol Engineering, Layer-2, Decentralized Finance (DeFi), Miner Ex

What are we all about?

We are a team of world class builders and researchers with expertise across several domains: Ethereum Protocol Engineering, Layer-2, Decentralized Finance (DeFi), Miner Extractable Value (MEV), Smart Contract Development, Security Auditing and Formal Verification.

Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, StarkWare, Gnosis Chain, Aave, Flashbots, xDai, Open Zeppelin, Forta Protocol, Energy Web, POA Network and many more.

We actively contribute to Ethereum core development, EIP’s and network upgrades together with the Ethereum Foundation, and other client teams.

Today, there are nearly 200 of us working remotely from over 45+ countries.

You can view all our open positions here:


The start-up is a non-custodial, institutional grade, staking as a service provider. The business operates validators across a wide range of Proof-of-Stake protocols and allows institutional clients to delegate their assets using their preferred custodians in order to collect staking rewards. It charges a commission on the staking rewards for operating the validators and providing analytics and reporting.

The business’ differentiation is based on:

  • Institutional grade security and compliance (e.g. permissioned validators)
  • Superior transparency and analytics, including dashboard and reporting
  • Processes designed with institutional workflow in mind

As a Blockchain Data Engineer, you will be responsible for extracting on-chain data from various PoS networks. You will be the reference within the company to provide reliable data necessary to perform multiple analyzes and to produce reporting and invoicing.


  • Extract, Transform and load data from various blockchains
  • Assist with data analysis queries
  • Design database schema that is performant, scalable, and maintainable
  • Interact with the product team to provide data and build the applications they are requesting
  • Interact with field experts and answer internal/external questions related to data extraction on each protocol
  • Build cloud infrastructure to support data engineering efforts.

You Have:

  • Experience/strong interest in blockchain
  • Comfort with one or more: Python/JavaScript/Golang
  • Strong understanding of distributed systems, Restful APIs and hands-on experience with JSON-RPC endpoints
  • Experience with writing infrastructure as code for cloud deployments and microservices (such as AWS Lambda) for task automation.
  • Proven success in communicating with users, other technical teams, and senior management to collect requirements, and describe data modeling decisions and data engineering strategies
  • Comfort with writing & optimizing SQL queries

Nice to have:

  • Experience working with Airflow and data-pipelines
  • Experience building reliable infrastructure on the Cloud (AWS, preferred, GCP, Azure) or willing to do so.
  • Experience in fault-tolerant infrastructure & real-time system monitoring
  • A genuine interest in the functioning of the networks you are working with
  • General knowledge of how PoS consensus mechanisms work

Perks and benefits:

  • Fully remote
  • Opportunity to build systems with no historical technical debt and operate in a company with a flat hierarchy
  • Flexible working hours
  • Plus equity

Join us!

We are always on the lookout for talent!

If what we do excites you, but none of the current open positions match your background, we encourage you to send us your CV at

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