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Principal Software Engineer (Data Ingest Platform)

Expel

$163,300 - $236,800
Oct 17, 2025
Herndon, VA, US
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Expel is looking for a Principal Engineer to lead the technical vision and architecture of their Data Ingest Platform, which is critical for fueling Expel's services and requires a scalable, reliable, and efficient flow of security data.

Requirements

  • Expert-level skills in designing, building, and operating large-scale distributed systems.
  • Professional experience developing in Go and/or Python.
  • Hands-on experience with cloud and data technologies like Google Cloud (BigQuery, Pub/Sub) or AWS equivalents (Redshift, SQS, Kinesis), along with databases like Postgres and Redis.
  • Specific expertise in workflow or task orchestration systems (like Airflow, Prefect, or custom platforms) and a history of creating frameworks or APIs.
  • The ability to lead through influence, communicate complex ideas clearly, and mentor other senior engineers.
  • Typically 10+ years of professional software engineering experience.

Responsibilities

  • Be the technical visionary for our core Data Ingest Platform, architecting its future to handle ever-increasing scale and complexity.
  • Build the tools, frameworks, and developer experience that make our integration engineers wildly successful and happy.
  • Roll up your sleeves and write code for the most critical parts of the platform, setting the standard for quality, performance, and reliability.
  • Architecting its future to handle ever-increasing scale and complexity.
  • Designing elegant frameworks and APIs that other engineers love to use.
  • Tough orchestration and scalability problems as puzzles waiting to be solved.
  • Building a platform that makes other developers 10x more productive.

Other

  • A deep-seated passion for building platforms and tools that empower other engineers.
  • A strong sense of empathy for your users (in this case, other developers!) and a drive to improve their experience.
  • The ability to lead through influence, communicate complex ideas clearly, and mentor other senior engineers.
  • We're only hiring those authorized to work in the United States. We do not currently sponsor immigration visas.
  • You'll receive consideration for employment without regard to race, sex, color, religion, sexual orientation, gender identity, national origin, protected veteran status, or on the basis of disability.