Full-Stack Software Engineer
Zyphra · San Francisco
CHECKED 7H AGO
Frontier labonsite
At a glance
Highlights
- Build a next-generation desktop and browser-based autonomous agent end-to-end.
- Help agents navigate the web, filesystems, and complete complex user tasks.
- Shape agentic orchestration, sandboxing, search retrieval and model integration.
What they offer
- Comprehensive medical, dental, vision, and FSA plans
- 401(k) plan
- Relocation and immigration support on a case-by-case basis
- In-office snacks and meals provided
- Unlimited PTO and company holidays
Ideal candidate
A fast-moving, curious builder who thrives in ambiguity and cares about shipping production-grade AI agents that extend human capabilities.
Requirements
- Proficiency in Python and building and debugging complex end-to-end applications
- Experience with SaaS production workloads, web interfaces, databases, search engines and queuing systems
- Experience developing browser extensions or automation tools with fine-grained browser control
- Understanding of LLMs, prompting techniques and orchestration for multi-step reasoning
- Ability to work across the stack from web interfaces to control plane and data infrastructure
- Experience with secure and virtualized execution environments
- Excellent communication and collaboration skills
- remote policy
- In-person in San Francisco
- visa sponsorship
- Immigration support on a case-by-case basis
Lab profile
About Zyphra
San Francisco AI lab building open language and audio models and autonomous desktop agents.
What they build
- Desktop and browser-based autonomous agents
- Open language models
- Open-source audio models (ASR, TTS, speech-to-speech)
Known for
- Agentic systems and human-AI interaction
- Reinforcement learning, post-training and preference learning
- Large-scale language model pre-training
- Novel model architectures and training methods
Key facts
- Headquartered in San Francisco, California