Senior Data Engineer Job at X4 Engineering, Hayward, CA

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  • X4 Engineering
  • Hayward, CA

Job Description

The Company

A rapidly growing data consultancy founded in 2023 by a former venture-backed biotech VC data/technology leadership team in San Francisco. The firm has already delivered 20+ engagements across tech, healthcare/biotech, finance, energy, real estate, and startups - building complex data platforms, products, and AI-driven systems.

The Role

A hands-on, senior individual contributor role for engineers who still love coding. You’ll work in small teams (often 1–3 engineers) to design and build production-grade data platforms, pipelines, and products across industries.

What You’ll Work On

  • High-impact, fixed-scope builds (e.g., enterprise data marts, complex migrations)
  • End-to-end data platform deployments (ETL, warehouses, BI across AWS/Azure/GCP)
  • Partnering with startups to build data-intensive products from 0 → 1

What We’re Looking For

Hands-on builder

  • Actively writing production code today
  • Not removed into management or purely architectural roles

Infrastructure ownership

  • Personally deployed and operated production systems
  • Cloud, CI/CD, scaling, monitoring, reliability

End-to-end ownership

  • Taken products from idea → launch → ongoing operation
  • Comfortable operating autonomously with stakeholders

True seniority (well beyond 5 years)

  • Targeting engineers with meaningful depth and ownership
  • Strong preference for backgrounds in smaller, high-ownership environments
  • Experience wearing multiple hats (application + infrastructure + deployment)

Why Join

  • High autonomy and real technical ownership
  • Variety of industries and problems
  • Small, elite engineering team
  • Opportunity to shape a fast-scaling consultancy

Location: San Francisco (5 days a week on-site)

Salary: $190k-$250k + 10-20% bonus + equity + sign on bonus

Benefits: Full Health, Vision, Dental, Life Insurance, Commuter Benefits, Unlimited Time off, 401k matched.

Job Tags

Relocation package

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