Senior Data Infrastructure Engineer (AI)

Location: On-site in San Francisco or New York City, United States

Salary: $200,000–$400,000 base salary per year, plus equity.

Company

Decagon develops a conversational AI platform that enables enterprises to deliver personalized customer experiences through voice, chat, email, SMS, and other channels.

What you will do

• Design and operate high-throughput data pipelines and streaming systems with strong SLOs, runbooks, and actionable telemetry.
• Build real-time and batch ingestion infrastructure using Kafka, Flink, Airflow, and related technologies.
• Own the analytical data layer, including schema design, query performance, and cost optimization across ClickHouse, BigQuery, or similar systems.
• Partner with research and product teams to architect data solutions, evaluate performance, and scale new features.
• Optimize data paths, caching, partitioning, and pipeline and query latency to meet demanding p95 and p99 targets.
• Lead Terraform and GitOps practices, participate in on-call rotations, and automate recurring data operations.

Requirements

• At least 5 years of experience building and operating production data infrastructure at scale.
• Hands-on experience with ClickHouse, Kafka or equivalent messaging systems, and Flink or dbt.
• Experience meeting high-availability and low-latency targets across streaming and batch workloads.
• Strong observability and incident response skills with tools such as OpenTelemetry, Prometheus/Grafana, or Datadog.
• Clear written communication and the ability to turn ambiguous data requirements into reliable designs.

Nice to have

• Experience with Debezium, Airflow, Dagster, Prefect, Spark, or Dask.
• Experience with Snowflake, BigQuery, Redshift, Databricks, Kubernetes, and multi-cloud environments.
• Experience as an early data, platform, or infrastructure engineer.
• Experience with customer-managed deployments.

Culture & Benefits

• In-office environment focused on execution, innovation, customer needs, and technical excellence.
• Medical, dental, and vision coverage for employees and families.
• Life insurance, disability benefits, retirement plan, parental leave, and fertility and family-building support.
• Monthly wellness and lifestyle stipend, daily office lunches and snacks, and a flexible vacation policy subject to local requirements.