Senior Fullstack Engineer - San Francisco

Department: Engineering

Location: San Francisco

Compensation: $210K – $350K • Offers Equity

Employment Type: FullTime

About Giga

Giga has recently raised a $61M Series A and has several paying customers, including DoorDash. We’re building the next generation of customer experience — real-time AI agents that can understand emotion, resolve issues instantly, and scale across the world’s largest enterprises.

It’s an exciting inflection point for the company. While we have been successful, we have larger ambitions. Our goal is to become the go-to AI platform for all enterprise automation, powered by our voice superintelligence. To achieve this, we need more great engineers.

The work affects millions of people every day and our engineers have autonomy and make true impact. This opportunity is unique because we have brilliant founders, have found commercial success, and see a clear path to becoming a generational company. Some further info about us:

• Voice AI startup Giga raises $61M Series A

• DoorDash and Giga Partnership

Giga builds AI agents trusted by the largest B2C companies in the world. Industry leaders like DoorDash trust Giga with their most complex support and operations workflows across voice, chat, and email. If being a part of this resonates with you, please apply!

The Role

We're looking for a fullstack engineer to build the product our customers use to configure, monitor, and interact with their AI agents. You'll own features end-to-end: from the APIs and data models to the interfaces customers use to manage their agents and understand performance.

This is a product engineering role. You'll work closely with design and product to ship features that customers actually use, iterating based on feedback and usage data. You'll need to balance polish with speed; we're a startup, so we ship fast, but the product still needs to feel good.

What You'll Work On

A few examples from our current roadmap:

• Agent configuration: Building the APIs and interfaces that let customers set up and customize their agents without writing code

• Analytics dashboards: Creating the data pipelines and visualizations that help customers understand how their agents are performing

• Conversation interfaces: Designing how users interact with and review agent conversations, including the backend systems that store and retrieve conversation data

• Onboarding: Taking customer conversations, policies, and API documents, and automatically translating that into a highly-effective personalized agent

As a senior fullstack engineer, you'll own features end-to-end, from database schema and API design through frontend implementation. You'll make decisions about system architecture, data modeling, and how to structure the codebase as it grows.

Tech Stack

• Frontend: TypeScript, React, Next.js

• Infrastructure: AWS, Modal, Kubernetes, Postgres

• Backend: Python (Django/FastAPI), TypeScript (Node.js)

You Might Be a Fit If You

• Have 4+ years of fullstack engineering experience building user-facing products

• Are strong in both frontend (TypeScript, React) and backend (Python or similar), with opinions about how to structure a codebase

• Have good product instincts—you can take a rough design and fill in the gaps, or push back when something doesn't make sense

• Care about the details that make a product feel polished, but know when to ship

• Are comfortable working across the entire stack, from database queries to delightful UI

• Want to own features, not just implement specs handed to you

• Are excited about building tools that help people work with AI

Perks & Benefits

• Catered lunch daily

• Dinner stipend

• $150/month wellness benefit (gym, fitness classes, mental health)

• 401(k) plan

• Paid parental leave (12 weeks maternal, 6 weeks paternal)

• Commuter benefits

• Medical, dental, and vision coverage

Giga is an equal opportunity employer. We're committed to providing equal employment opportunities regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by law.