Fluency

AI

SoftwareEngineer,AIPlatform

$180–250k San Francisco, California, United States; New York City, New York, United States FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Mid candidates.

The Brief

“Software Engineer, AI Platform at Fluency. Skills: Data platform, ETL pipelines, Agent infrastructure, LLM integration, AWS, Python. Own the data platform: Maintain and evolve the platform that powers every job across the company.. Run the LLM ETL pipeline: Ingestion, transformation, enrichment, and storage of LLM-driven data.”

What You'll Achieve.

Make the platform layer reliable, observable, and usable in production.; Move data through LLMs.; Transform agent outputs into structured downstream data.; Run jobs reliably.; Keep the system fast, cheap, and observable as we scale.; Improve reliability, throughput, and cost of LLM-driven jobs in production.; Enable the team to debug and iterate quickly.

Industry & Context.

AI
Problems you'll solve

Make tradeoffs while priorities shift; Balance reliability with iteration speed; Debug and iterate quickly; Cost optimization for LLM workloads

Eligibility Requirements

In-person role, 5 days a week in our office, Participate in on-call rotation and incident response, E-3 sponsorship for Australians to relocate with stipend

What They're Looking For.

Must Have

Python engineering experience supporting production systems (FastAPI or similar), Experience building or maintaining production pipelines that handle non-trivial volume, retries, backfills, and failure recovery, Hands-on experience with a data orchestrator (Dagster, Airflow, Prefect, or Temporal), Hands-on experience with dbt or similar transformation tooling, Comfort with PostgreSQL at scale: schema design, multi-schema setups, and migrations, Comfort with AWS infrastructure (ECS, Lambda, SQS, Step Functions, RDS, S3), Comfort with IaC (Terraform / Terragrunt), Familiarity with LLM APIs and the operational realities of LLM-based systems (latency, cost, retries, structured output, failure modes)

Nice to Have

Experience with distributed compute for Python workloads: Anyscale Ray, Dask, or Spark, Experience with Polars and Pandas for data processing, Familiarity with Datadog for observability, metrics, and tracing, Cost optimization experience for LLM workloads, Familiarity with pgvector or other vector stores, Multi-region AWS deployment experience, Some TypeScript/Node experience

What You'll Do.

Own the data platform: Maintain and evolve the platform that powers every job across the company.

Run the LLM ETL pipeline: Ingestion

and storage of LLM-driven data.

Build agent transformation infrastructure: The systems that take agent outputs and turn them into structured

queryable data downstream.

and cost of LLM-driven jobs in production.

Build observability and tooling so the team can debug and iterate quickly.

Partner with AI Engineers: Expose new capabilities through the platform and shape the interfaces they build on.

Operate the system: Participate in on-call rotation and incident response.

How You'll Work.

Team & Collaboration

Partner with AI Engineers: Expose new capabilities through the platform and shape the interfaces they build on.

Full Job Description

We're hiring a full-time Software Engineer, AI Platform to own the data platform, ETL pipelines, and agent infrastructure that everything else at the company runs on.   This is the platform layer that makes Fluency's AI work reliable, observable, and usable in production. It moves data through LLMs, transforms agent outputs into structured downstream data, runs jobs reliably, and keeps the system fast, cheap, and observable as we scale.   Because we're an early-stage company moving fast, we're looking for an engineer who can build the platform, keep it running, and make tradeoffs while priorities shift. This is an in-person role, 5 days a week in our office. The ability to balance reliability with iteration speed is essential.   KEY RESPONSIBILITIES - Own the data platform: Maintain and evolve the platform that powers every job across the company. - Run the LLM ETL pipeline: Ingestion, transformation, enrichment, and storage of LLM-driven data. - Build agent transformation infrastructure: The systems that take agent outputs and turn them into structured, queryable data downstream. - Improve reliability, throughput, and cost of LLM-driven jobs in production. - Build observability and tooling so the team can debug and iterate quickly. - Partner with AI Engineers: Expose new capabilities through the platform and shape the interfaces they build on. - Operate the system: Participate in on-call rotation and incident response.   WHAT WE ARE LOOKING FOR - Strong Python engineering experience supporting production systems (FastAPI or similar) - Experience building or maintaining production pipelines that handle non-trivial volume, retries, backfills, and failure recovery - Hands-on experience with a data orchestrator (Dagster, Airflow, Prefect, or Temporal) and dbt or similar transformation tooling - Comfort with PostgreSQL at scale: schema design, multi-schema setups, and migrations - Comfort with AWS infrastructure (ECS, Lambda, SQS, Step Functions, RDS, S3) and IaC (Terra

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