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← Baselayer

Senior Software Engineer, Identity Graph

Baselayer
Location
San Francisco, California
Posted
19 days ago
Department
Engineering
Salary
$230k – $340k
What they actually want (must-haves)
  • Shipped product features that touched ingestion to storage to API to customer, end-to-end, in production.
  • Owned a Postgres schema that real money or real decisions depended on, and stayed on top of its evolution.
  • Strong async Python with experience running async services at scale.
  • Deep Postgres expertise: schema design under live load, EXPLAIN ANALYZE as a reflex, zero-downtime migration tooling.
  • FastAPI (or close equivalent): shipped real APIs with auth dependencies, OpenAPI contracts, and structured response models.
  • Built multi-tenant APIs where access control is load-bearing and scoped correctly at the data layer.
Nice to have
  • Entity resolution / record linkage / fuzzy matching at scale.
  • Search infrastructure - full-text, fuzzy, or vector - kept in sync with a Postgres system of record.
  • KYC/KYB/fraud/underwriting data-pipeline experience.
  • Address parsing/normalization at country scale.
  • Webhook delivery infrastructure: retries, signing, idempotency, and ordering guarantees.
What the job really is

As a Senior Software Engineer at Baselayer, you will be responsible for developing and maintaining the identity graph of US businesses and consumers. Your work will involve ingesting and normalizing data, building entity resolution systems, designing customer-facing APIs, and ensuring performance and scalability of the system. You will have ownership over the entire product feature lifecycle, from schema design to API delivery.

Benefits
  • Flexible PTO so you can recharge without red tape
  • In-person energy: We're based in SF and meet in the office 4 days a week
  • We pay well and back it with equity. We want you to think and act like an owner
  • We cover 100% of your health, dental, and vision premiums. No surprise deductions from your paycheck
  • 401(k) with company match: We match your contributions so your future self benefits too
  • We contribute to your HSA on applicable plans, so your coverage works as hard as you do
Things to weigh
  • The role involves working with legacy systems and data integration challenges.
  • The position requires a strong focus on performance optimization under real customer load, which may involve complex problem-solving.
  • The company is at an inflection point, which may imply a fast-paced and evolving work environment.
Job score4.4/5
Benefits4/5
Freshness4/5
Career value4/5
Role clarity5/5
Pay transparency5/5

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