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Alchemy

Senior Software Engineer, Data Services

Alchemy

. Build and operate blockchain ingestion, indexing, storage, and API-serving systems.

Posted 10/13/2026full-timeSan Francisco • California • United StatesSenior💰 $205,000 - $230,000 per yearWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in designing, shipping, and operating production backend systems with a focus on data ingestion, indexing, and API development. Proficient in optimizing query performance and ensuring data reliability while collaborating with cross-functional teams to enhance system capabilities.

Highest-signal resume keywords
Production Backend DevelopmentDatabase ManagementAPI Design and DevelopmentStreaming Systems ExperienceData Performance Optimization

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Programming SkillsDatabase IndexingQuery PerformanceAsynchronous ProcessingFailure RecoveryData ConsistencyStorage MigrationsCost OptimizationBlockchain ExperienceEVM Logs and Traces
Soft Skills
Clear CommunicationProblem-Solving
Tools & Technologies
ClickHouseKafkaBlockchain IndexersDeveloper-Facing Data APIs
Industry Keywords
Distributed Data SystemsProduction SupportIncident ResponseReal-Time DeliveryLarge Historical Datasets

Tech Stack

Tools & technologies
Kafka

About the role

Key responsibilities & impact
  • 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, making 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 owned systems.
  • Maintain monitoring, runbooks, safe rollouts, and fixes that prevent recurrence.
  • Work with Product and customer-facing teams to understand developer needs, ship improvements, and measure effects on reliability, performance, and cost.
  • Within three months, ship a customer-facing improvement and demonstrate its effect on data quality, freshness, latency, or cost; own a production component, test recovery behavior, and propose the next improvement using operational evidence and developer feedback.

Requirements

What you’ll need
  • 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.
  • Blockchain experience is helpful, but not required.
  • ClickHouse or other analytical databases; Kafka or similar streaming systems.
  • Blockchain indexers, EVM logs and traces, finality, or non-EVM data models.
  • Developer-facing data APIs, real-time delivery, or large historical datasets.
  • Storage migrations and performance or cost optimization under production traffic.
  • Legally authorized to work in the country where this role is based.

Benefits

Comp & perks
  • Offers equity
  • Offers bonus
  • 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