Senior Data Engineer

CoW DAO; Torrejón; A distancia; EUR 40.000 - 60.000; Jornada completa

Descripción de la vacante

A leading DeFi protocol is looking for a Data Engineer to manage on-chain and off-chain data. The role involves building pipelines, ensuring data quality, and collaborating across teams. Ideal candidates have strong Python and SQL skills, comfortable with blockchain data. This position offers a flexible work environment and team-based culture.

Servicios

Flexible work environment

Token plan

Conference allocation

Learning budget

Hardware budget

Flexible time off

Formación

• Solid experience designing and maintaining scalable data architectures.
• Strong coding skills in Python and SQL.
• Comfortable working with blockchain data providers and APIs.

Responsabilidades

• Collaborate with teams to understand data needs.
• Design, build, and maintain robust data pipelines.
• Ensure data quality, reliability, and discoverability.

Conocimientos

Python

SQL

Data architecture

Blockchain APIs

Data orchestration frameworks

Herramientas

Dune

Etherscan

Dagster

Airflow

Descripción del empleo

1 month ago Be among the first 25 applicantsAbout CoW DAOAbout CoW DAOCoW DAO is on a mission to protect Ethereum users from MEV and optimize trade execution across DeFi. We achieve this through the CoW Protocol, CoW Swap (a leading intent-based DEX aggregator), and the innovative MEV Blocker, which together help secure, aggregate, and route trades for optimal outcomes. We also fund values-aligned projects via the CoW Grants Program.CoW Protocol is consistently ranked among the top DEX aggregators by monthly volume and is the largest intent-based exchange. Our MEV Blocker protects trades from harmful MEV extraction and is integrated across the Ethereum ecosystem. The CoW AMM is the only live AMM designed to protect liquidity providers from LVR (loss-versus-rebalancing).With over 100 open-source repositories on GitHub, we're transparent, community-driven, and deeply committed to the open-source ethos. Our real-time Dune Analytics dashboard showcases billions in cumulative trading volume and a rapidly growing user base. As we continue to scale, CoW DAO remains at the forefront of DeFi innovation, prioritizing security, efficiency, and decentralization.Learn moreLocation :

Fully remote (Preference for Europe or remote ±4 hours CEST)Contract Type :

Full-time contractorNote :

Please note we are not hiring from the US, Australia, or New ZealandAbout The RoleAt CoW DAO data plays a central role in how we understand on-chain activity and operate our fair combinatory auction system.We’re looking for a Data Engineer who’s excited to dive deep into blockchain data (Ethereum and other L1 / L2s), enrich it with insights from our off-chain auction system, and build the pipelines and infrastructure to support operations and analytics. This is a hands-on role where you’ll work across teams, design scalable systems, and make high-quality data accessible and actionable across the organization.If you thrive in a fast-moving environment, love working with complex datasets, and want to shape the data foundation of a leading DeFi protocol, we’d love to hear from you.What You’ll DoCollaborate with teams across the company to understand their data needs and provide actionable insightsDesign, build, and maintain robust data pipelines and infrastructure for ingesting and processing on-chain and off-chain dataEnsure data quality, reliability, and discoverability through testing, monitoring, and documentationCreate tools and systems that make it easy to access, query, and visualize data (using tools like Redash, Metabase, or Looker)Keep an eye on the evolving blockchain data ecosystem—experiment with new tools and techniques to stay aheadOwn your work end-to-end :

from initial idea to deployment and maintenanceWho You AreSolid experience designing and maintaining scalable data architectures (data lakes, warehouses, pipelines)Strong coding skills in Python and SQLComfortable working with blockchain data providers and APIs (e.G. Dune, Etherscan, CoinGecko)Familiar with decoding Ethereum transactions and simulation tools (e.G. Tenderly, Phalcon)Experience with modern data orchestration frameworks (Dagster, Airflow, or Prefect)You write clean, tested, and well-reviewed code and follow best practices for deployment and monitoringYou’re a self-starter, collaborative, and not afraid to take ownershipNice to HaveFamiliarity with cloud platforms (AWS, GCP, etc.)Previous experience in a startup or high-growth environmentExperience contributing to or using open-source data / analytics tools in the Web3 spaceWhat We Can Offer YouFlexible work environment :

Join our hub in Lisbon whenever you want or work remotelyToken plan :

Have a stake in our mission and shape the future of CoW DAOPeriodic gatherings :

Meet your teammates in person during regular team retreatsConference allocation :

Stay up to date with the latest in Web3 using our conference budgetLearning budget :

Support for personal and professional developmentHardware budget :

Set yourself up with the tools you needFlat hierarchies :

Have more ownership and less red tapeFlexible time off :

Balance your personal and work lifeMake an impact :

Your contributions directly influence the direction and success of the protocolGrowth :

Take initiative, own projects, and accelerate your learning and growthReferral ProgramEarn 4,000 USDC / USD through our refer-to-earn program. More details hereCultureLife within the CoW Protocol is an incredible adventure! We take pride in our collaborative approach, embracing autonomy and fostering a culture of big thinking and continuous growth. We value impact, ownership, simplicity, and team spirit. Plus, we're all about feedback, coming together, and enjoying the journey along the way!At CoW Protocol, we strive to create a space where everyone feels included and empowered. We believe that our products and services benefit from our diverse backgrounds and experiences. All qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical abilitySeniority levelSeniority level Mid-Senior levelEmployment typeEmployment type Full-timeJob functionJob function Information TechnologyIndustries Internet PublishingReferrals increase your chances of interviewing at CoW DAO by 2xGet notified about new Senior Data Engineer jobs in Spain .Madrid, Community of Madrid, Spain 1 month agoMadrid, Community of Madrid, Spain 9 months agoSanta Cruz de Tenerife, Canary Islands, Spain 1 month agoDeveloper – Full Remote – EU InstitutionsBilbao, Basque Country, Spain 1 month agoFrontend software engineer (React) - Europe RemoteMadrid, Community of Madrid, Spain $35,000.00-$40,000.00 1 month agoFrontend software engineer (React) - Europe RemoteZaragoza, Aragon, Spain $35,000.00-$40,000.00 1 month agoMadrid, Community of Madrid, Spain 1 month agoMadrid, Community of Madrid, Spain 5 months agoMadrid, Community of Madrid, Spain 4 days agoMadrid, Community of Madrid, Spain 3 days agoFull Stack Developer – Java & React (100% remote) Software Engineer (Python) - AI PlatformVitoria-Gasteiz, Basque Country, Spain 1 month agoWe’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.J-18808-Ljbffr

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