Senior Software Engineer, Data Infrastructure

Arena
San Francisco
Workplace: RemoteFull timeFunction: Software EngineeringExperience: 5+ yearsSkills: ["Collaboration","Communication","Problem-solving"]

Senior data-focused software engineer responsible for designing and building robust data pipelines and infrastructure to ingest, process, and analyze tens of millions of user votes, collaborating with researchers and product leadership. You’ll ensure data quality and reliability, scale systems for growing data volumes, and develop dashboards and reports that inform model evaluation and public insights.

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FursaFursa
Arena
Arena
8 months ago

Senior Software Engineer, Data Infrastructure

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Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 4 hours agoStatus: Live

Job Summary

Senior data-focused software engineer responsible for designing and building robust data pipelines and infrastructure to ingest, process, and analyze tens of millions of user votes, collaborating with researchers and product leadership. You’ll ensure data quality and reliability, scale systems for growing data volumes, and develop dashboards and reports that inform model evaluation and public insights.
Location: San Francisco
Workplace: Remote
Employment Type: Full time
Job Function: Software Engineering
Seniority: Sr. Manager level

Key Responsibilities

  • •Design and build robust data pipelines to ingest, process, and transform user vote data for model performance evaluation.
  • •Collaborate with researchers and product leadership to understand product goals and necessary data.
  • •Design and implement dashboards and reports to provide information for the public, model providers, and researchers.
  • •Ensure the integrity, data quality, and reliability of the data pipelines.
  • •Scale data infrastructure to accommodate increasing data volumes and evolving analytical needs.

Pay and Benefits

Equity and Bonus:Equity
Perks:Health InsuranceEquity

Key Requirements

  • •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 data-analysis language (Python preferred, Scala, or R)
  • •Hands-on experience with data processing and pipeline frameworks (e.g., Apache Spark, Ray Data) and big data platforms (Databricks, Snowflake)
  • •Demonstrated experience designing, implementing, optimizing, and debugging production data pipelines
  • •Strong collaboration with researchers and product teams to align data needs with product goals
Experience:5+ yearsData engineeringBig dataAI
Skills:CollaborationCommunicationProblem-solving
Tech Stack:SQLPythonScalaRApache SparkRay DataDatabricksSnowflake

Company Brief

Arena
LMArena operates a community-driven platform for evaluating and benchmarking large language models via crowdsourced pairwise comparisons and leaderboards, used by researchers and AI labs to measure real-world model performance. ([linkedin.com](https://www.linkedin.com/company/lmarena?utm_source=openai))
Industry: Developer Tools
Company Size: Small (11 to 50 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series A
Headquarters: San Francisco, United States
Founded: 2025
WebsiteLinkedIn