Senior Full Stack Engineer

SENIOR FULL STACK ENGINEER

Overview

We are seeking Senior Full Stack Engineers to shape the core of a rapidly scaling AI voice automation platform. This is a high-impact role where youll build scalable systems and intuitive interfaces that power millions of AI-driven conversations. Work closely with the founding team bridging backend architecture with frontend experiences while driving category-leading product innovation. This is for engineers who thrive in fast-paced environments with real customer exposure and the ability to directly impact product direction.

About the Role

This is a true full stack position working across React TypeScript and fast high-quality production-level solutions. Youll own projects end-to-end: from architecture and build through deployment and iteration. Youll bridge backend complexity (prompt orchestration telephony integrations) with intuitive frontend experiences (dashboards analytics tools). Theres a strong focus on building seamless customer onboarding and genuinely impactful user experiences.

This role offers fast feedback loops direct customer exposure and the chance to help define a category-leading product. Its the kind of position where strong engineers thrive and leave their mark.

Key Responsibilities

Core Feature Development:

Build core platform features including prompt orchestration dashboards analytics and telephony integrations

Develop scalable full stack systems spanning UI through to APIs and DevOps

Own projects end-to-end: architecture implementation deployment and iteration

Create intuitive interfaces and APIs that allow customers to get live quickly

Support seamless customer onboarding and troubleshoot issues in production

System Architecture & Scalability:

Design and build systems that support millions of AI-driven conversations

Optimize for performance reliability and user experience at scale

Build resilient APIs and backend services that handle real-time telephony and conversation data

Implement efficient data pipelines and analytics infrastructure

Customer Impact & Feedback:

Work directly with customers to understand pain points and opportunities

Translate customer feedback into product improvements

Support onboarding and provide technical guidance to customers

Feed real-world insights back into product strategy and roadmap

Requirements

Experience (Required):

58 years of professional full stack engineering experience

Deep proficiency in React and TypeScript with ability to architect complex data-intensive frontend applications

Strong command of for backend services and advanced JavaScript for full stack development

Experience with Python for backend services and scripting

Proven track record building and shipping production systems at scale

Experience with AWS (Lambda EC2 databases storage etc.)

Demonstrated ability to own projects end-to-end in fast-moving environments

Strong systems thinking and ability to make sound architectural decisions

Mindset & Culture Fit (Required):

Bias for action: prefers shipping over over-engineering

High ownership mentality: comfortable taking full responsibility for outcomes

Fast execution: thrives in high-intensity rapidly-changing environments

Customer-focused: genuinely excited about understanding and solving real customer problems

Collaborative: works well with founding teams and cross-functional partners

Self-starter: capable of identifying problems and driving solutions independently

Tech Stack

Frontend: React JavaScript/TypeScript modern CSS

Backend: JavaScript/TypeScript Python

Infrastructure: AWS (Lambda EC2 RDS S3 etc.)

Databases: PostgreSQL Redis or similar

DevOps: Docker CI/CD Infrastructure-as-Code

Tooling: Git modern development workflows

Work Details

Location: Redwood City California

Work Policy: 5 days per week on-site (non-negotiable)

Employment Type: Full-Time Direct Hire

Remote Status: No Remote

Positions Available: 2 hires planned

Visa Sponsorship: Available (not open to net new H-1Bs; H-1B transfers and other visa types welcome)

Compensation

Base Salary: $215000 $290000 (based on experience)

Equity: Extremely competitive package

Benefits: Comprehensive (health dental vision 401k etc.)

Why This Role & Company

High-Impact Ownership:

This is not a task-based role. You own entire features and systems from conception through deployment. Your decisions directly shape the product and company direction.

Category-Leading Product:

Work on an AI voice automation platform at a pivotal moment. The founding team is building something genuinely new and youll help define how the category evolves.

Real Customer Exposure:

Customers depend on what you build. Youll get direct feedback on your work and see immediate impact from your contributions.

Fast Feedback Loops:

In a lean fast-moving environment youll ship code daily and iterate based on real customer usage. No lengthy approval processes or bureaucracy.

Founding Team Collaboration:

Work closely with the founding team in a tight-knit high-trust environment. Your technical judgment shapes architecture and your ideas have real influence.

Scalability Challenge:

Build systems powering millions of conversations. Complex impactful engineering problems across full stack.

Competitive Compensation:

Strong base salary and extremely competitive equitythe kind of package that reflects real ownership and upside potential.

This is the kind of role where strong engineers leave their mark.

Who Should Apply

Strong engineers who thrive on high ownership and fast execution

Full stack engineers who genuinely enjoy bridging backend complexity and frontend elegance

People excited by building from scratch and being close to product and customer impact

Engineers who prefer fast-moving startups over slower-paced environments

People willing to be on-site fully committed to the team dynamic

Not for engineers seeking remote work or flexibility

Not for people uncomfortable with intensity or rapid change

Not for engineers who prefer narrow scopes or well-defined tickets

Not for those looking for a slower pace