Senior Data Engineer

Job description

*Talent Wanted. For hazardous journey. ~~Small wages~~, bitter cold, long months of complete darkness, constant danger, safe return doubtful. Honour and recognition in case of success.* Fridtjof Nansen crossed the Arctic, going places no human had ever been. Together with our users, we're doing the same onchain: charting entirely new territory. Nansen is the onchain analytics platform traders and funds use to see what's actually happening on-chain. We label and track 500M+ blockchain addresses, the largest such dataset in the industry. **Our mission:** Surface the signal and create winners. *This seat also comes with a defined runway: you'll start as an IC, with a clear path to Engineering Manager within 12–18 months for the right person.* ## What you'll do at Nansen You'll work with data engineers and ML engineers to build the data infrastructure that powers Nansen's customer-facing analytics product. - Design, build, and scale data pipelines and infrastructure in ClickHouse, Postgres, Python, and dbt - Run the pipelines behind 500M+ labeled addresses, moving terabytes of streaming and batch data every day - Partner with crypto researchers, software engineers, and product to shape how data gets modeled, surfaced, and productized - Own data quality, reliability, and observability end-to-end. At most analytics companies a wrong number is a support ticket. Here, it's a position someone took. - Mentor other data engineers and raise the technical bar across the team - Use AI tools and agents to move faster and cut the busywork out of your day ## What we're looking for - You've shipped and scaled high-performance data systems in production - Deep expertise in SQL and Python, with real hands-on experience in dbt, ClickHouse, and Postgres - Strong grasp of streaming data architectures, comfortable operating at genuine scale - You work the full data stack: ingestion, transformation, storage, modeling, serving - You already build with tools like Cursor, Claude Code, and MCPs - You write clearly. This team is remote and async, so most decisions get made in writing - Bonus: experience leading or managing projects in a smaller team, fluency in onchain data structures, Web3 technologies, and crypto markets ## What we offer our crew - Competitive salary. Meaningful equity. Real ownership in what you build - Fully remote with support for in-person co-location - Annual company retreat and team off-sites in Singapore, Bangkok, or Oslo, with flights and accommodation covered - Unlimited AI tokens - Your own OpenClaw for work - Nansen Pro account: full access to the most detailed onchain data in the market - Speed, ownership, curiosity, courage, transparency, simplicity - A front-row seat (and a hand in building) the next chapter of finance *Work visa sponsorship is not provided for this role.* *Safe return doubtful. Honour and recognition in case of success.*