Senior Data Engineer

Nansen.ai; Peru (IL); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Competitive salary

Equity

Remote work with optional co-location

Annual retreats

OpenClaw for work

Nansen Pro access

Impactful ownership

Job summary

Nansen.ai is seeking a senior data engineer to design and operate data infrastructures powering our on-chain analytics platform. You will collaborate with data and ML engineers to deploy scalable pipelines, maintain data quality, and drive observability across terabytes of streaming and batch data.

The role emphasizes full-stack data responsibilities, deep SQL/Python expertise, and a distributed, async work environment. Remote with potential for in-person onboarding and team retreats is offered.

Qualifications

• Shipped and scaled high-performance data systems in production.
• Hands-on experience with dbt, ClickHouse, and Postgres.
• Strong SQL and Python skills; capable of end-to-end data stack.
• Excellent written communication for async, remote team.

Responsibilities

• 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.
• 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.

Skills

SQL

Python

dbt

ClickHouse

Postgres

Data pipelines

Data modeling

Tools

Cursor

Claude Code

MCPs

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
• Your own OpenClaw for work
• Nansen Pro account: full access to the most detailed onchain data in the market
• 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.