Senior Founding Full-Stack Engineer — AI Voice (SF On-site)

Mission.dev

California

On-site

USD 200,000 - 280,000

Full time

10 hours ago

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Benefits offered by this job

Relocation package

Visa sponsorship

Medical insurance

Dental insurance

Vision insurance

Meal allowance

Job summary

Mission.dev in San Francisco, CA is seeking a Senior Founding Full Stack Engineer to own core features for AI voice agents. You will work closely with the founders to ship production-grade solutions, combining frontend excellence with robust backend services in a fast-paced startup environment.

The role requires 3–8 years of full-stack experience, strong React/TypeScript skills, and on-site dedication to San Francisco five days a week.

Qualifications

3–8 years of professional experience in full-stack software engineering.
Strong expertise in React and TypeScript for building performant frontend apps.
Bachelor's degree in Computer Science or Computer Engineering with GPA 3.8/4.0 or equivalent.
Willingness to work on-site in San Francisco, five days per week.

Responsibilities

Design and build core features for AI voice agents, including prompt orchestration, dashboards and analytics.
Develop high-performance frontend applications using React and TypeScript.
Build backend services, APIs, and integrations supporting enterprise-scale conversations.
Integrate telephony and real-time communication systems.
Own the full software development lifecycle from design to production deployment.
Optimize performance and real-time data visualization.
Collaborate with founders and enterprise customers to deliver reliable, production-ready solutions.