Staff SW Engineer
fastino · San Francisco Bay Area
Frontier labonsitestaff
At a glance
Highlights
- Join team behind open-source models downloaded 50M+ times.
- Help define technical direction for Fastino's platform at scale.
- Ship end-to-end features while tackling ambiguous problems.
Ideal candidate
A seasoned builder who thrives in ambiguity and owns hard problems end-to-end. You care about reliable, scalable AI, raising the bar through mentorship, and turning customer feedback into product quickly.
Requirements
- 8+ years of hands-on software engineering experience including time as tech lead or driving architecture
- Strong architectural skills with track record scaling production systems under real load
- Production experience with agentic systems, AI training pipelines, or inference pipelines
- Hands-on experience deploying software on AWS with Kubernetes and Terraform
- Experience building and running sandboxed execution environments for agent workloads
- Extensive experience building with AI coding agents to produce production-quality code
- Thrives in ambiguity and makes sound tradeoffs between speed and long-term bets
Lab profile
About fastino
Builds specialized, efficient LLMs and agentic systems that outperform general models on targeted tasks.
What they build
- Specialized efficient language models
- Agentic systems
- GLiNER open-source models
Known for
- Team alumni from Google Research, Apple, Stanford, Cambridge
- GLiNER models downloaded 50M+ times
- Models used by teams at NVIDIA, Meta, Airbnb
Key facts
- Raised $25M seed round
- Backed by Microsoft and Khosla
- Based in San Francisco
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