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Wintermeyer Ventures

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Senior Backend Engineer

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Summary

Builds and operates backend systems for an AI data infrastructure company, running high-volume pipelines that de-identify enterprise data (email, documents, code) for AI training. Focus on reliability of async workflows: retries, checkpoints, replay, and recovery. Stack includes Python/Go/Rust/Java, AWS (Airflow, Batch, SQS, S3, DynamoDB), and PostgreSQL, on-site in NYC.

About the Role

Join a small engineering team at an AI data infrastructure company to build and operate backend systems that prepare sensitive enterprise data for AI training. You will help ensure high-volume data pipelines are reliable, auditable, and safe to recover when failures occur.

What You'll Do
  • Build and scale multi-stage pipelines that de-identify enterprise data from communication, email, document, code, and project management sources.
  • Own backend systems from design and delivery through debugging, correctness checks, and recovery.
  • Make retries, checkpoints, partial failures, replay, backfills, and rollbacks safe across asynchronous workflows, batch workers, queues, and object storage.
  • Build internal tools and dashboards to monitor pipeline performance, investigate data quality, and support release decisions with queryable provenance.
  • Work with machine learning, full-stack, platform, and security teammates to support new data types and pipeline capabilities.
What We're Looking For
  • 3 to 10 years of software engineering experience, including personal ownership of production backend systems.
  • Experience building and operating high-volume data processing systems that transform data, not only move it between systems.
  • Strong distributed and asynchronous systems fundamentals, including queues, workers, concurrency, idempotency, retries, and recovery from partial failures.
  • Backend depth and strong experience in a general-purpose language such as Python, Go, Rust, or Java.
  • Experience with AWS and batch or workflow orchestration. Relevant technologies include Airflow, AWS Batch, SQS, S3, DynamoDB, and PostgreSQL.
  • Meaningful early-stage or high-growth startup experience, a STEM undergraduate degree, and a track record of ownership and progression.
Compensation & Benefits

Base salary is $220,000 to $300,000 annually. Visa sponsorship is available.

Location

On-site in New York, New York, United States.

Skills

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