Senior Software Engineer, AI Platform Performance

Senior Software Engineer (AI Performance)

$150,000 – $250,000 + Equity + 401(k) + Medical + PTO + Relocation Support + Clear Progression

Miami, Florida – Fully Onsite (Relocation Offered)

Join a highly profitable AI start-up where you’ll take end-to-end ownership of 0-1 AI systems into highly scalable, observable, and reliable platforms that power enterprise AI in production!

This is a rare opportunity to define technical direction from day one, owning 0-1 AI systems and scaling them into enterprise-grade platforms with meaningful equity and high-growth potential!

Backed by top-tier VCs, YC professionals, and AI industry leaders, this early-stage company has achieved strong product-market fit with seven-figure enterprise customers. They are now hiring a Senior Engineer to join a small, elite engineering team, playing a key role in defining how AI systems are built, monitored, and scaled in production.

You’ll work onsite in Miami, owning the design and delivery of core internal AI platform tooling that drives quality, reliability, and performance. You’ll operate across backend systems (Python/FastAPI), data (PostgreSQL/Supabase), cloud infrastructure, observability, and messaging/telephony, while setting engineering standards and best practices across the platform.

This role is ideal for a senior engineer who wants real ownership, architectural influence, and visible impact, with a clear path toward Staff / Lead as the company scales.

The Person:

* Strong backend Python (FastAPI preferred)

* Deep SQL/PostgreSQL knowledge!

* Proven experience designing and owning production CI/CD pipelines

* Strong background in automated testing and reliability-focused engineering

* Hands-on expertise in observability (logs, metrics, traces)

* Experience building and scaling 0-to-1 systems in fast-moving environments

The Role:

* Lead the design and build of AI platform performance, reliability, and observability tools

* Backend development using Python / FastAPI

* Data layer ownership: PostgreSQL / Supabase

* Platform & Infrastructure: AWS, CI/CD, Terraform / CDK

* Observability ownership: OpenTelemetry, Prometheus, Grafana