Senior Data Scientist

Company: Chainalysis
Apply for the Senior Data Scientist
Location: London
Job Description:

In this role, you’ll

  • Own the execution of one or more production data science projects, translating broad problem statements into well‑scoped tasks and credible analytical results that meet stakeholder expectations.
  • Design, develop, and validate novel behavioral heuristics and algorithms over EVM (and other) blockchain data to attribute on‑chain activity and uncover new insights.
  • Apply advanced techniques including graph computation, statistical modeling, and machine learning to large‑scale on‑chain datasets.
  • Identify and resolve inefficiencies in code, methodology, and workflows; ensure your work integrates cleanly into our production data and tooling stack.
  • Clearly articulate and defend methodology and results to both technical and non‑technical stakeholders, maintaining alignment through consistent communication.
  • Mentor junior team members, contribute to technical hiring, and share knowledge.
  • Collaborate closely with peers to bring research from prototype to production.

We’re looking for candidates who have

  • A PhD in computer science, machine learning, statistics, physics, mathematics, or a related technical field – or equivalent industry experience working on advanced, data‑intensive problems.
  • Expert‑level proficiency in Python and SQL, with a track record of writing clean, testable, production‑quality code.
  • Demonstrated experience applying advanced analytical techniques (e.g. graph algorithms, ML, statistical inference) to large, messy datasets.
  • Comfort working with EVM‑based blockchain data, or strong evidence of the aptitude to ramp up quickly on EVM data structures and protocols.
  • A demonstrated ability to take ownership of projects: decomposing requirements, driving them to completion, and proactively seeking clarity from stakeholders.
  • An analytical, open‑minded approach to problem solving – comfortable navigating ambiguity and willing to dive into problems outside your day‑to‑day scope.
  • Strong written and verbal communication skills, including the ability to explain complex methodology to diverse audiences.

You might also have

  • Familiarity with Databricks, DBT, Spark/PySpark, or similar large‑scale data platforms.
  • Modified infrastructure‑as‑code (e.g. Terraform) or contributing to production data pipelines.
  • Mentored junior data scientists or engineers.
  • Knowledge of, or passion for, the cryptocurrency and blockchain space.

Technologies we use

  • Python
  • SQL
  • Databricks
  • DBT
  • PySpark / Spark
  • Terraform
  • AWS
  • Postgres

We encourage applicants across any race, ethnicity, gender/gender expression, age, spirituality, ability, experience and more. If you need any accommodations to make our interview process more accessible to you due to a disability, don’t hesitate to let us know. You can learn more here.

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Posted: May 30th, 2026