Full-Time

Staff Software Engineer

Updated on 9/4/2026

Opencall

Opencall

1-10 employees

AI automation for appointments and billing

No salary listed

New York, NY, USA

In Person

The company prefers candidates in San Francisco or New York but is open to exceptional remote applicants.

Bachelor's, Master's

Category
Software Engineering (1)
Required Skills
Microsoft Azure
Python
Distributed Systems
React.js
Data Structures & Algorithms
Computer Networking
Data Engineering
TypeScript
AWS
Data Analysis
Google Cloud Platform

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Requirements
  • A BS or MS degree in Computer Science, Engineering, or a related field is required.
  • At least 10 years of software engineering experience is required, with demonstrated ownership of large-scale systems or complex technical initiatives.
  • Experience leading technical direction for large, ambiguous projects is required.
  • A track record of designing and scaling production systems is required.
  • The ability to make pragmatic engineering decisions with incomplete information is required.
  • Experience mentoring engineers and improving engineering practices is required.
  • Strong product judgment and the ability to balance technical excellence with business impact are required.
  • Proficiency in Python and TypeScript is required.
  • Experience building customer-facing applications with modern frontend frameworks is required.
  • A strong foundation in computer science fundamentals, including data structures, algorithms, databases, networking, and software design principles, is required.
  • The ability to operate independently, make decisions with limited information, and drive projects from idea to production is required.
  • The ability to clearly communicate technical concepts is required.
  • Strong product sense and the ability to define what to build, not just how to build it, are required.
Responsibilities
  • Own critical systems across the realtime voice platform, agent runtime, and infrastructure from design through execution.
  • Define architecture, technical direction, and engineering standards for complex projects.
  • Partner with product and business teams to identify opportunities and tradeoffs.
  • Design and evolve systems capable of supporting 100x growth in traffic and complexity.
  • Make high-leverage architectural decisions across the realtime voice platform, agent runtime, customer dashboard, and analytics infrastructure.
  • Solve problems involving real-time latency, voice quality, reliability, distributed systems, and operational scale.
  • Raise the engineering bar through mentorship, technical guidance, and strong engineering practices.
Desired Qualifications
  • Experience with React is preferred.
  • Experience designing and scaling distributed systems and infrastructure in production environments.
  • Experience building real-time systems, telephony or Session Initiation Protocol infrastructure, video chat platforms, data engineering platforms, or other latency-sensitive applications.
  • Experience operating production systems in cloud environments such as Amazon Web Services, Google Cloud Platform, or Microsoft Azure.
  • Experience working in early-stage environments with high autonomy and ambiguous requirements.

OpenCall.ai provides an AI-driven platform that automates scheduling, availability checks, and billing for service-based SMEs in ophthalmology, beauty salons, and personal care by integrating with tools like Google Calendar, Square, and Boulevard. It works by an AI that answers questions, manages client commitments, and can upsell services, delivered as a SaaS with tiered plans plus a white-glove onboarding, designed for rapid deployment. It differentiates itself by targeting specific SME sectors and offering end-to-end automation with professional onboarding, aiming for measurable outcomes like reducing call costs and increasing revenue without more staff. Its goal is to streamline operations, reduce overhead, and improve customer satisfaction and revenue through AI-powered automation.

Company Size

1-10

Company Stage

Seed

Total Funding

$130K

Headquarters

San Francisco, California

Founded

2022

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Simplify Jobs

Simplify's Take

What believers are saying

  • OpenCall launched SMS on June 9, 2025, widening use cases and response rates.
  • The company remains active on Y Combinator jobs as of August 17, 2026.
  • App Store availability on June 11, 2026 makes adoption friction lower for operators.

What critics are saying

  • OpenCall still has no visible public enterprise customer logos or revenue disclosure.
  • Voice agent startups face fast commoditization from OpenAI, Google, and Twilio.
  • If call quality slips, ophthalmology and salons will churn within one contract cycle.

What makes Opencall unique

  • Y Combinator W24 backs OpenCall, signaling strong founder-market fit and distribution.
  • OpenCall integrates Google Calendar, athenahealth, and billing systems for workflow automation.
  • Its SMS launch on June 9, 2025 expands beyond voice into text-based operations.

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Benefits

Remote Work Options

Company Equity

Company News

OpenCall
Jun 9th, 2025
Now Live: OpenCall SMS

Opencall has launched SMS: the same powerful AI that runs its voice agents, now available over text.

Y Combinator
Mar 19th, 2024
Launch YC: OpenCall.ai 📲 AI call centers for any business | Y Combinator

We give any business a skilled, affordable call center.