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Senior Software Engineer, Data Services

Alchemy· *Engineering
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Hybrid (San Francisco), Hybrid (Remote), Hybrid (New York)$205k - $230kFull-timePosted 1w ago

About the role

Build the systems that turn blockchain activity into data developers can use. Own backend projects from ingestion through serving, ensuring data is correct, fresh, and fast to query, and collaborate with Product and customer-facing teams to improve reliability, performance, and cost.

Responsibilities

  • Build and operate blockchain ingestion, indexing, storage, and API-serving systems.
  • Handle reorganizations, retries, duplicate events, and historical backfills without silently losing or corrupting data.
  • Improve query performance and data freshness. Make those properties observable to the team and understandable to customers.
  • Extend API capabilities and chain coverage, with tests for differences in chain behavior and data semantics.
  • Develop streaming and event-delivery capabilities with explicit guarantees for ordering, replay, and failure recovery.
  • Reduce the cost of storing, processing, and serving data through measured changes to architecture and query execution.
  • Participate in production support and incident response for the systems you own. Maintain monitoring, runbooks, safe rollouts, and fixes that prevent recurrence.

Qualifications

  • A track record of independently designing, shipping, and operating production backend or distributed data systems.
  • Strong programming skills in a production backend language, plus experience with databases, indexing, and query performance.
  • Experience reasoning about consistency, partitioning, asynchronous processing, and failure recovery.
  • Evidence that you can diagnose a production problem and improve the system beyond the immediate fix.
  • Sound API design judgment, including compatibility, pagination, error handling, and data contracts.
  • Clear communication and the ability to turn an ambiguous customer problem into a scoped engineering project.

Skills

Required:Backend developmentAPI designData systems design
Nice to have:Observability & incident response

Benefits

  • Private Health Insurance
  • Gym Reimbursement
  • Commuter Benefits
  • Flexible Time Off
  • In-Office Group Meals
  • Learning & Development Stipend
  • Company Sponsored Conferences & Events
  • Books & Audiobook subscription with Bookster
Last updated Oct 25, 2026. Interested? Apply on the company site.
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About Alchemy

Alchemy | Blockchain infrastructure for developers

Alchemy | The web3 development platform

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