echojobs.io
Login

Syndesus

Senior Full Stack Software Engineer

Redwood City, CA
USD 200k - 280k
React TypeScript Node.js Python API
Search for More Jobs
Description

Sr Founding Full Stack SWE

Location: San Francisco

Department: External Positions

Location Type: IN_OFFICE

Employment Type: FULL_TIME

Senior Founding Full-Stack Engineer

About the Company
Our client is a fast-growing Y Combinator-backed Voice AI startup transforming sales, support, and customer engagement. With $5M in seed funding and approaching $30M ARR already, achieved with just 20 people, they're building the standard for voice automation at scale.

The Role
As a Founding Senior Full-Stack Engineer, you'll build the core platform powering millions of AI-driven conversations. Working with React, TypeScript, and Node.js, you'll create scalable systems and intuitive interfaces that enable seamless customer experiences.

Key Responsibilities
  • Develop core features including prompt orchestration, dashboards, analytics, and telephony integrations
  • Build full-stack systems from polished UIs to robust APIs and DevOps workflows
  • Own projects end-to-end from architecture to production deployment
  • Create intuitive interfaces enabling rapid customer activation
  • Support customer onboarding and translate feedback into product improvements

Requirements
  • 2+ years full-stack experience with React, TypeScript, Node.js, or Python
  • CS/CE degree or equivalent practical experience
  • Ownership mindset with ability to solve problems independently
  • Thrives in fast-paced, dynamic environments
  • Strong communication and collaboration skills

Compensation & Benefits
  • Salary: $200K - $280k USD
  • Equity: 0.25% - 0.45%
  • Schedule: Full-time, 70 hrs/week (50 onsite + 20 remote, flexible hours)
  • Location: Redwood City, CA
  • 100% medical, dental, vision coverage
  • Unlimited meals and snacks
  • Gym and commute reimbursement
  • Visa sponsorship available (H1B, TN, L-1, E-3, F-1, O-1)

Interview Process
  1. Online coding assessment (25-30 min)
  2. Technical phone interviews (2 rounds)
  3. Onsite/virtual interviews: practical coding, system design, and automation

Syndesus
Syndesus

0 applies

0 views

There are more than 50,000 engineering jobs:

Subscribe to membership and unlock all jobs

Engineering Jobs

60,000+ jobs from 4,500+ well-funded companies

Updated Daily

New jobs are added every day as companies post them

Refined Search

Use filters like skill, location, etc to narrow results

Become a member

🥳🥳🥳 452 happy customers and counting...

Overall, over 80% of customers chose to renew their subscriptions after the initial sign-up.

To try it out

For active job seekers

For those who are passive looking

Cancel anytime

Frequently Asked Questions

  • We prioritize job seekers as our customers, unlike bigger job sites, by charging a small fee to provide them with curated access to the best companies and up-to-date jobs. This focus allows us to deliver a more personalized and effective job search experience.
  • We've got over 200,000 jobs from 15,000+ vetted companies. No fake or sleazy jobs here!
  • We aggregate jobs from 15,000+ companies' career pages, so you can be sure that you're getting the most up-to-date and relevant jobs.
  • We're the only job board *for* software engineers, *by* software engineers… in case you needed a reminder! We add thousands of new jobs daily and offer powerful search filters just for you. 🛠️
  • Every single hour! We add 2,000-3,000 new jobs daily, so you'll always have fresh opportunities. 🚀
  • Typically, job searches take 3-6 months. EchoJobs helps you spend more time applying and less time hunting. 🎯
  • Check daily! We're always updating with new jobs. Set up job alerts for even quicker access. 📅

What Fellow Engineers Say