Senior Backend Engineer for AI Platform & Infra (Golang)

flexai; Santa Clara (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

FlexAI is seeking a Senior Backend Engineer (Infrastructure & AI Platform) with deep Golang expertise to architect and build core backend systems powering our AI compute and PaaS platform. You will lead architecture and scale services for AI workloads across cloud and on-prem environments in a high-ownership, deep-tech setting.

The role sits in-person at our San Jose, CA office, with collaboration across AI/ML, Runtime, and Infra teams.

Qualifications

• 5+ years of Backend or Infrastructure Engineering experience.
• Expert-level proficiency in Golang (must-have, heavy hands-on).
• Strong experience building production-grade distributed systems.
• Proven track record on infrastructure platforms, PaaS, or deep-tech systems.

Responsibilities

• Architect and develop high-performance Golang services for FlexAI's AI PaaS and infrastructure platform.
• Build internal APIs powering model deployment, job scheduling, and compute lifecycle management.
• Develop components interfacing with GPU/compute infrastructure and AI runtimes.
• Drive reliability, observability, and resilience across services.

Skills

Golang

Distributed Systems

Backend Engineering

Cloud Platforms

Performance & Scalability

Tools

Kubernetes

Docker

gRPC

OpenTelemetry

Prometheus

Grafana

Job description

FlexAI is seeking a Senior Backend Engineer (Infrastructure & AI Platform) with deep Golang expertise to architect and build core backend systems powering our AI compute and PaaS platform. You will lead architecture and scale services for AI workloads across cloud and on-prem environments in a high-ownership, deep-tech setting.

The role sits in-person at our San Jose, CA office, with collaboration across AI/ML, Runtime, and Infra teams.