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Software Engineer - Data Infrastructure

Join Arena as a Member of Technical Staff to build data infrastructure for evaluating AI model performance.

Location
SF Bay Area
Compensation
Not disclosed
Level
staff
Type
full time

Posted by employer 10 months ago

First seen on Joblaze 2 months ago

Last verified on the company career page 1 day ago

Apply at Arena → Save job Scanned from arena.ai

AI in the day-to-day

Arena evaluates AI models in real-world scenarios using user vote data.

Requirements

Experience
5+ years

Not disclosed in this posting: compensation, work arrangement, visa sponsorship.

Benefits

Equity/Stock Options Health Insurance

Joblaze summary

In the role of Member of Technical Staff - Data Infrastructure at Arena, the engineer will focus on designing and building data pipelines that process user vote data, which is crucial for evaluating AI model performance. Key skills include proficiency in SQL, Python, and experience with big data technologies like Apache Spark and Databricks. This position is well-suited for seasoned professionals with over five years of experience in software engineering, particularly in data engineering. As an early team member, the engineer will collaborate closely with researchers and product leaders to enhance data quality and infrastructure.

Joblaze insights

  • Listed about 2 months ago — first seen on Joblaze September 3, 2026. Last confirmed on Arena's careers page November 2, 2026.
  • Python appears in 47.8% of 92 comparable staff data engineering roles; Databricks appears in 13% of 92 comparable staff data engineering roles.

Quick facts

How much experience is required?
At least 5 years of relevant experience for this Software Engineer - Data Infrastructure role.
What's the tech stack?
Joblaze extracted these technologies from the posting: Apache Spark, Databricks, Python, Ray Data, SQL, Snowflake.
What seniority level is this role?
Arena targets staff-level candidates for this position.
Is this full-time or contract?
Full-time for this Software Engineer - Data Infrastructure role at Arena.

From the original posting

About the Role

Arena Intelligence is seeking a Data Infrastructure Software Engineer to join our team and build the data pipelines and infrastructure that powers real-world AI evaluation. You'll play a crucial role in designing and building the data pipelines that process and analyze tens of millions user vote data, directly impacting how we understand and evaluate AI model performance. This role is ideal for someone who thrives in fast-moving environments and interested in building products to ensure accurate and fair evaluation of human preferences across different models, which will shape the direction of future AI development.

As an early member of our data engineering team, you'll partner closely with researchers, engineers, and product leadership to retrieve valuable data and insights from human votes and feedback. You'll help us move fast while staying rigorous, improving data quality, scaling our infrastructure to new levels, and deepening our ability to compare frontier models and predict human preferences.

You’ll

  • Design and build robust data pipelines to ingest, process, and transform user vote data to features essential for model performance evaluation.

  • Collaborate with researchers and product leadership to understand product goals and necessary data.

  • Design and implement solutions to generate result dashboards and reports, providing useful information for the public, model providers, and researchers.

  • Ensure the integrity, data quality, and reliability of the pipelines.

  • Scale our data infrastructure to accommodate increasing data volumes and evolving analytical needs.

You’ll have

  • 5+ years of experience in software engineering, with a dedicated focus on data engineering and big data technologies

  • Proficiency in SQL and at least one programming language commonly used for data analysis (Python (preferred), Scala, R).

  • Hands-on experience with data processing and pipeline frameworks (Apache Spark, Ray Data, etc.) and at least one popular big data analytics platform (Databricks, Snowflake).

  • Demonstrated experience in designing, implementing, optimizing, and debugging production data pipelines.

Bonus Points

  • Prior work in data analytics or datalake platforms.

  • Experience in advanced data analysis tools, such as Delta lake, streaming tables.

  • Exposure to machine learning is a plus.

What we offer

  • We offer competitive compensation aligned to the markets where our team members are based. The compensation range for each role is listed on its posting and will depend on the candidate's experience and work location.

Standard company text repeated across Arena's postings is omitted here.

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