Senior Data Engineer

The role

Build and run the internal data platform to help Alchemy understand product usage, revenue, and customer service costs. You will own ingestion, schema changes, and data quality checks while working with analytics engineers and data scientists.

What you will do

• Build batch and streaming pipelines connecting operational databases, product events, billing systems, and external sources.
• Make ingestion recoverable through change-data capture, schema-change handling, idempotent processing, and safe backfills.
• Operate and improve Snowflake, including access controls, workload management, query performance, and costs.
• Improve orchestration and deployment workflows for testing, shipping, and debugging pipelines.
• Build data-quality checks to detect stale, missing, duplicated, or inconsistent records.
• Work with analytics partners on shared data models, source definitions, and documentation.
• Reduce recurring manual work and build reusable tools for self-service data access.
• Participate in production support and incident response for pipelines and the data platform.

Required qualifications

• Experience independently building and operating production data pipelines and the infrastructure around them.
• Strong SQL and Python skills, including testing, debugging, and maintainable software design.
• Experience with Snowflake or a comparable warehouse, including performance tuning and access management.
• Experience with workflow orchestration and transformation tools such as Airflow and dbt, or equivalent systems.
• Understanding of data modeling, incremental processing, schema evolution, and data-quality testing.
• The ability to trace a data discrepancy from a downstream report back to its source, explain the cause, and fix it.
• Good judgment about stakeholder needs.

Nice to have

• Kafka, database replication, or change-data-capture systems.
• Apache Iceberg, Spark, Trino, or other lakehouse and query technologies.
• Infrastructure as code, data observability, lineage, and disaster recovery.
• Usage metering, billing and revenue data, or semantic layers for self-service analytics.

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

About the company

Alchemy is the Web3 infrastructure and developer platform that powers millions of users and blockchain applications. It provides the infrastructure and tools developers need to build reliable, scalable, and accessible experiences.