Senior Backend Engineer (Copy)

Sequencing is a company focused on transforming how people understand themselves through their DNA. As a Senior Backend Engineer, you will build and improve the distributed backend systems of their genomics platform, ensuring fast, accurate, and reliable genetic guidance.

Responsibilities:

• Develop and maintain high-performance and fault-tolerant distributed backend services
• Build and optimize data processing pipelines over large genomic and health datasets using Apache Spark and DuckDB
• Design data structures, storage and indexing strategies across PostgreSQL, Qdrant, and Redis for performance at scale
• Own async event processing and workflow orchestration using AWS SQS, RabbitMQ, and BullMQ
• Drive latency, throughput, and reliability through parallel execution, caching, and efficient data access
• Build guardrail and quality assurance layers that keep AI responses anchored in real genomic and scientific evidence
• Partner with bioinformatics experts to ensure outputs match the science, and with product/design specialists on user-facing behavior