Hark

Full-Stack Engineer

San Jose · Full-time

Sponsorship not specified$170k-$400kDetected 83 days ago

Full-Stack DevelopmentLLMsAgentic AI

About the role

That means translating what our agent can do into something that feels fast, intuitive, and trustworthy.
This is a high-ownership role on a small team.
You'll work directly with designers and model researchers, and what you ship will define how people experience Hark.

Own features end-to-end, from early prototyping to production deployment and iteration based on real usage.
Build the frontend for agent workflows that integrate tool use, memory retrieval, and multi-step reasoning. Making model capabilities feel coherent and trustworthy to the person using them.
Design and build the product surfaces of Hark.
Hark is an artificial intelligence company building advanced, personalized intelligence.
We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines.

Experience shipping consumer products that real people depend on.
You have used LLM-powered products, noticed where they break down, and thought about what would make them better.
Comfort with ambiguity and fast iteration.
You can take a rough idea, prototype it, get feedback, and move quickly toward something that works.
You can work closely with designers and engineers, explain your thinking, and make good decisions together.

Experience at a fast-growing AI or consumer product company.
Experience with voice or multimodal interfaces.
Experience with real-time streaming UI.
The pay offered for this position may vary based on several individual factors, including job-related knowledge, skills, and experience.
This information will be shared if an employment offer is extended.
5+ years of relevant software engineering experience.
Experience at a fast-growing AI or consumer product company is a strong plus.

The US base salary range for this full-time position is between $170,000 - $400,000 annually.
The pay offered for this position may vary based on several individual factors, including job-related knowledge, skills, and experience.
The total compensation package may also include additional components and benefits depending on the specific role.
This information will be shared if an employment offer is extended.

One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory.
You'll build the product surfaces of Hark - the interfaces and experiences users interact with every day across voice, text, and vision.
The interfaces, conversations, and agentic experiences that users interact with every day across voice, text, and vision.

The gap between a capable AI and one people actually want to use is a product problem, and this role owns it.

This listing is sourced directly from Hark's careers page and normalized into a canonical job model.