Andreessen Horowitz

Senior Backend Engineer, Data Modeling and Ingestion Platform

Andreessen Horowitz  •  $160k - $220k/yr  •  United States (Remote)  •  5 months ago
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Job Description

About the Role

We are looking for a Senior Backend Engineer to lead the unification of large, highly rich, and heterogeneous datasets sourced from a wide range of external providers. These datasets are used to power our generative audio models.

Your work will create the foundational dataset that powers our research by building robust, scalable systems for linking, deduplicating, reconciling, and enriching data at massive scale. This role centers on high-impact bulk ingestion and advanced data linkage You will design the logic, algorithms, and strategies that transform many independent datasets into a unified, high-quality canonical asset used throughout the company.

You will collaborate closely with ML researchers and product teams, working with tools such as BigQuery, Dataflow/Beam, TFRecords, and—where beneficial—distributed systems frameworks like Ray Familiarity with ML workflows using JAX or multihost training is a plus, as the datasets you produce will directly support that ecosystem.

What You'll Do

  • Build high-throughput bulk ingestion workflows to integrate datasets from multiple external providers.
  • Design and implement scalable entity-resolution solutions, including record linking, deduplication, clustering, and conflict arbitration.
  • Create and refine matching logic, decision rules, and similarity functions to align datasets with high accuracy and strong coverage.
  • Define and track data quality indicators, such as overlap metrics, match precision/recall, duplicate rates, and completeness.
  • Prepare training-ready datasets in formats such as TFRecords, and structure data to meet ML research requirements.
  • Develop processing components using Dataflow (Beam) and manage large analytical workloads in BigQuery
  • Leverage frameworks like Ray to accelerate large-scale experiments, feature extraction, and research-oriented data preparation.
  • Collaborate with ML researchers to anticipate downstream requirements and evolve linkage strategies as new sources and use cases emerge.

What We're Looking For

  • Experience working with large, heterogeneous datasets from multiple providers or domains.
  • Strong background in entity resolution, deduplication, data unification, or related large-scale data integration techniques.
  • Proficiency in Python, with an emphasis on efficient, scalable data processing.
  • Experience with BigQuery, Google Dataflow/Apache Beam, or similar batch-processing frameworks.
  • Familiarity with data validation, normalization, reconciliation, and building consistent views across diverse data sources.
  • Ability to craft well-structured matching and decision strategies that balance accuracy, completeness, and computational efficiency.
  • Comfortable iterating quickly on pragmatic solutions, balancing correctness with time-to-delivery.
  • Clear communication skills and the ability to collaborate closely with ML and research teams.

Nice to Have

  • Knowledge of architecting Google Cloud Platform systems at scale
  • Experience with distributed compute frameworks such as Ray, Spark, or Flink
  • Understanding of JAX-based ML pipelines, multihost training setups, or large-scale data preparation for accelerator-backed workflows.
  • Familiarity with TFRecords or other high-volume training data formats.
  • Exposure to ranking, clustering, or statistical similarity modeling.
  • Experience with Go, NextJS, and/or React Native to contribute to full-stack development

Why Join Us

  • You will design the core dataset that underpins our research, product development, and generative audio models.
  • You'll work on large-scale data challenges that require creativity, algorithmic thinking, and engineering excellence.
  • You'll join a small, fast-moving team where your decisions shape the direction of our data and research capabilities.

Benefits

  • Highly competitive salary and equity
  • Quarterly productivity budget
  • Flexible time off
  • Fantastic office location in Manhattan
  • Productivity package, including ChatGPT Plus, Claude Code, and Copilot
  • Top notch private health, dental, and vision insurance for you and your dependents
  • 401(k) plan options with employer matching
  • Concierge medical/primary care through One Medical and Rightway
  • Mental health support from Spring Health
  • Personalized life insurance, travel assistance, and many other perks

Udio’s success hinges on hiring great people and creating an environment where we can be happy, feel challenged, and do our best work.

Udio provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.

This role is eligible for a compensation package of base salary, equity, and benefits. The starting base salary range for this role is $160,000 - $220,000. Actual salary may vary based on level, work experience, performance, and other factors evaluated during the hiring process.

Andreessen Horowitz

About Andreessen Horowitz

Founded in 2009 by Marc Andreessen and Ben Horowitz, Andreessen Horowitz (known as "a16z") is a venture capital firm that backs bold entrepreneurs building the future through technology. We are stage agnostic: We invest in seed to late-stage technology companies, across the consumer, enterprise, bio/healthcare, crypto, fintech and games spaces.

a16z is defined by respect for the entrepreneur and the entrepreneurial company building process; we know what it’s like to be in the founder’s shoes. The firm is led by general partners, many of whom are former founders/operators, CEOs, or CTOs of successful technology companies, and who have domain expertise ranging from biology to crypto to distributed systems to security to marketplaces to financial services.

We aim to connect entrepreneurs, investors, executives, engineers, academics, industry experts, and others in the technology ecosystem. We have built a network of experts including technical and executive talent; top media and marketing resources; Fortune 500/Global 2000 companies; as well as other technology decision makers, influencers, and key opinion leaders. a16z uses this network as part of our commitment to help our portfolio companies grow their business, so our operating teams provide entrepreneurs with access to expertise and insights across the entire spectrum of company building.

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See Disclosures: https://a16z.com/disclosures/

Industry
Finance & Insurance
Company Size
501-1,000 employees
Headquarters
Menlo Park, CA
Year Founded
2009
Website
a16z.com
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