Sierra · 3 months ago
Software Engineer, Agent Data Platform
San Francisco, CA
Full-time
Onsite
Mid, Senior Level
$230K/yr - $390K/yr
4+ years expSierra is a company dedicated to enhancing customer experiences through AI technology. They are seeking a Software Engineer for their Agent Data Platform, who will be responsible for building data systems that improve AI agents' performance and personalization capabilities.
Artificial Intelligence (AI)Enterprise SoftwareSaaS
Responsibilities
Architect and build our core platform to handle data at scale with low latency
This includes our real-time eventing infrastructure, streaming and batch ETL pipelines, and our Iceberg-based data lakehouse
You will own the systems for interactive OLAP querying, orchestration, and experimentation, ensuring our data is trustworthy, fast, and easy to use for the entire organization
Develop the systems for long-term agent memory, build reusable Customer Data Platform (CDP) primitives, and implement the optimization loops that allow our agents to personalize interactions and demonstrably lift business outcomes
Qualification
Required
You have designed, built, and operated large-scale data systems, processing terabytes or petabytes of data with technologies like Spark, Flink, Trino/Presto, and data lakehouse formats like Iceberg or Hudi
You possess strong backend and distributed systems fundamentals in a language like Go, Scala, or Python. You understand the trade-offs of different storage engines, query plans, and data serialization formats
You have a history of implementing pragmatic data governance, lineage, and testing. You've built platforms that are cost-aware, highly operable, and a delight for other engineers to build upon
You're well-versed in data modeling best practices (dimensional modeling, star/snowflake schemas, slowly changing dimensions) and know how to optimize analytical query patterns for both traditional OLAP systems and modern cloud data warehouses
You have a portfolio of shipped data products, including analytics dashboards, data visualization tools, or alerting and exploration systems
You are a skilled full-stack engineer (e.g., TypeScript/React and a service layer like Go), with a keen eye for performance, API design, and polish
You excel at turning ambiguous questions into clear, intuitive interfaces. You have strong product sense around information architecture, handling empty states, and making complex data explainable
You have practical experience with ML-powered product features, such as personalization, recommendations, or classification systems
Strong software engineering background with 4-7+ years of hands-on development experience in building and shipping production systems or products
A passion for being on the frontier of AI products
High agency and a bias to action in a high-autonomy environment
Degree in Computer Science or related field, or equivalent professional experience
Preferred
Deep experience with event streaming platforms (e.g., Kafka, Kinesis) and real-time data processing
Experience with modern data visualization libraries (e.g., ECharts, D3.js) and the principles of building performant, reusable charting components for complex data
Production experience with recommender systems or optimization loops (e.g., multi-armed bandits, ranking)
A track record of leading complex technical projects or mentoring other engineers
Benefits
Flexible (Unlimited) Paid Time Off
Medical, Dental, and Vision benefits for you and your family
Life Insurance and Disability Benefits
Retirement Plan (e.g., 401K, pension) with Sierra match
Parental Leave
Fertility and family building benefits through Carrot
Lunch, as well as delicious snacks and coffee to keep you energized
Discretionary Benefit Stipend giving people the ability to spend where it matters most
Free alphorn lessons
Company
Sierra
Sierra provides a platform that builds and manages conversational AI agents for customer experiences.
201-500 employees
H1B Sponsorship
Sierra has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (11)
2024 (2)
Funding
Current Stage
Growth StageTotal Funding
$635MKey Investors
SoftBank Vision FundGreenoaks
2025-12-04Series Unknown
2025-09-04Series Unknown· $350M
2024-10-28Series Unknown· $175M
Leadership Team
Bret Taylor
Co-Founder
Recent News
2026-01-13
GlobeNewswire
2026-01-06
Company data provided by crunchbase