---
title: 'Full-Stack Software Engineer at Alex AI'
canonical: 'https://feeny.ai/job/full-stack-software-engineer-alex-ai-san-francisco-kham0as2edgg'
type: 'job'
last_seen: '2026-09-09'
---

# Full-Stack Software Engineer at Alex AI

- **Company:** Alex AI
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-08-29
- **Last confirmed live:** 2026-09-09
- **Apply:** https://jobs.ashbyhq.com/alexai/d103c4cb-973c-47f1-b603-412ceb6f0bca

## Job description

## About Alex

Alex was just named to the CB Insights AI 100 of 2026, the 100 most promising AI startups in the world. We're building the future of hiring: our AI recruiter conducts live job interviews, coordinates follow ups, and more giving companies deeper hiring signal faster than ever. We work with some of the most respected brands in the world and have raised $20M to date.

WHO ARE WE?

We’re people who:

- genuinely enjoy solving complex engineering problems
- learn quickly and do what it takes to deliver results
- work really, really hard
- move with urgency
- enjoy and value working together in person in San Francisco 5 days a week

WHAT TECHNOLOGIES DO WE USE?

Experience preferred in:

- Javascript (Typescript, React, Node, Next)
- Python
- Cloud / DevOps (Azure, Kubernetes, Docker)
- System Architecture

WHAT CAN I WORK ON?

Alex is similar to a marketplace, as we serve both candidates through the interview experience and employers through a data aggregation and analysis platform. As a hands-on engineer, you will build both consumer-facing and enterprise-grade software with a clear opportunity for growth. Problems that you could work on related to consumer software are:

- How can we bring the average interviewer response latency down to 200ms?
- How can we fine-tune our models to decrease hallucination and help Alex pass the Turing test?
- How will our system architecture change as we scale to thousands more users, concurrently?

Problems that you could work on related to enterprise software are:

- How do we integrate with our customer’s internal hiring systems?
- What’s the best way to present interview results visually and as fast as possible?
- How can Alex expand to coordinating the hiring process end to end?
- And many, many feature requests that need to be built out!

WHAT’S IN IT FOR ME?

- Take ownership of building the next billion dollar company
- Collaborate with a tight-knit team of talented builders
- Launch products that directly impact people’s careers
- Work with the founding team daily in-person in San Francisco
- Competitive salary and equity
- Medical, dental, and vision insurance
- FSA, DCFSA, HSA options
- Flexible paid time off (PTO)
- 401(k) plan
- Fully paid parental leave program
- Commuter benefits
- In office lunch
- Dog-friendly office

If you’ve gotten this far and our culture/tech resonates with you, we want you to apply. Your first conversation will be with Alex, our AI recruiter.

Alex is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic.

## About Alex AI

## Company Overview
- **One-liner**: Alex AI builds an agentic AI recruiter that automates the entire hiring workflow—resume screening, candidate outreach, interviewing, identity verification, and scheduling—so recruiters can focus on building relationships and closing top talent.
- **Entity Type**: Private (Series A; $19.9M total funding)
- **Headquarters**: San Francisco, United States
- **Founded**: 2024
- **Founders**: Aaron Wang (Co-Founder and CEO) [linkedin.com](https://www.linkedin.com/company/hire-alex)

## Core Business
- **Primary industry**: Technology, Information and Internet (HR Tech / AI Recruiting)
- **Target customers**: B2B – enterprise employers, staffing firms, Fortune 100 companies, financial institutions, nationwide restaurant chains, Big 4 accounting firms [techcrunch.com](https://techcrunch.com/2025/09/29/ai-recruiter-alex-raises-17m-to-automate-initial-job-interviews/)
- **Mission**: “Free your team to hire at their best, at any scale. Alex automates the busywork and creates space for your recruiters to build candidate relationships, partner with hiring managers, and win top talent.” [alex.com](https://www.alex.com/)

## Products & Services
- **Resume Screens**: Instantly evaluates every resume against specific job criteria, producing clear, explainable scoring with plain-language summaries of strengths, gaps, and role alignment. [alex.com](https://www.alex.com/platform)
- **Talent Match**: Rediscovers top talent already in the ATS for every new role using natural language matching, surfacing qualified past applicants. [alex.com](https://www.alex.com/)
- **AI Interviews**: Conducts personalized two-way screening interviews via video, phone, SMS, or WhatsApp in 26+ languages, 24/7. Asks intelligent follow-up questions and adapts in real-time. [alex.com](https://www.alex.com/platform)
- **Coordinator**: Manages the handoff from AI screening to human interview—books qualified candidates directly on the team’s calendar, packages a complete briefing with scores and insights, and handles confirmations, reminders, and rescheduling. [alex.com](https://www.alex.com/platform)
- **Verify**: Validates candidate identity and detects fraud in real-time during interviews by analyzing audio, video, and behavior (no extra steps for honest candidates). [alex.com](https://www.alex.com/)

## Market Standing
- **Valuation**: Not disclosed
- **Key Metric**: Total funding of **$19.9M** across three rounds:
  - Seed (2024-03-01): $125K, 1 investor
  - Seed (2025-05-01): $2.8M, led by 1984 Ventures, 4 investors
  - Series A (2025-09-01): $17M, led by Peak XV Partners with participation from Y Combinator, Uncorrelated Ventures, and CHROs from Fortune 500 companies [linkedin.com](https://www.linkedin.com/company/hire-alex) [techcrunch.com](https://techcrunch.com/2025/09/29/ai-recruiter-alex-raises-17m-to-automate-initial-job-interviews/)
- **Notable Investors/Partners**: Peak XV Partners, Y Combinator, Uncorrelated Ventures, 1984 Ventures
- **Growth Signals**:
  - Headcount: 33 employees (+300% YoY) [linkedin.com](https://www.linkedin.com/company/hire-alex)
  - Over **1,000,000 candidates interviewed** to date [alex.com](https://www.alex.com/)
  - **96% of candidates prefer Alex** over traditional screening [alex.com](https://www.alex.com/)
  - **2x faster time-to-hire** for customers [alex.com](https://www.alex.com/)
  - Integrates with **33+ ATS** platforms including Workday, iCIMS, Greenhouse, Lever, SmartRecruiters, SAP SuccessFactors [alex.com](https://www.alex.com/platform)
  - **48% of Alex interviews happen after traditional business hours**, showing candidate convenience [alex.com](https://www.alex.com/)

## Competitive Advantages
- **Human-in-the-loop design**: No candidate is auto-rejected by AI; hiring teams can challenge, override, or disregard AI outputs at any point. The final decision always rests with humans. [alex.com](https://www.alex.com/platform)
- **Transparent and defensible AI**: Every interview produces a documented record (questions, responses, criteria). Monthly bias audits by independent third-party Warden AI across 15+ protected classes, with results published publicly. Compliant with NYC Local Law 144 and EU AI Act. [alex.com](https://www.alex.com/platform)
- **Enterprise-grade trust**: SOC 2 Type II certified across all five trust service criteria, GDPR compliant, and no data scraping or inferred profiles—candidates are evaluated only on information they knowingly provide. [alex.com](https://www.alex.com/platform)
- **Multi-channel, multilingual**: Interviews via video, phone, SMS, and WhatsApp in 26+ languages, adapting to candidate preferences and time zones. [alex.com](https://www.alex.com/)

## Strategic Focus
- **Current priorities**: Scale the platform to serve more enterprise customers and deepen ATS integrations. The Series A funding will be used to expand the team (currently 33 people, growing rapidly) and enhance product capabilities. [techcrunch.com](https://techcrunch.com/2025/09/29/ai-recruiter-alex-raises-17m-to-automate-initial-job-interviews/)
- **Long-term vision**: Interview millions of job applicants to build professional profile data that is richer and deeper than LinkedIn’s—based on the thesis that a 10-minute conversation reveals more than a static profile. [techcrunch.com](https://techcrunch.com/2025/09/29/ai-recruiter-alex-raises-17m-to-automate-initial-job-interviews/)

## Why Work Here
- **High-growth environment**: 300% headcount growth in the last year, with a small but rapidly scaling team (33 employees). [linkedin.com](https://www.linkedin.com/company/hire-alex)
- **Impactful mission**: Build the future of hiring with agentic AI that makes the process fairer, faster, and more transparent for both candidates and recruiters.
- **Engineering culture**: Technical co-founder (Aaron Wang, ex-Facebook and quant hedge fund) leads the company; the platform is built on cutting-edge AI, natural language processing, and real-time voice/video interaction. [ycombinator.com](https://www.ycombinator.com/companies/alex-com)
- **Open roles**: Currently hiring for Customer Success Manager, Sales Development Representative (SDR), and Full-Stack Software Engineer. [linkedin.com](https://www.linkedin.com/company/hire-alex)
- **Work policy**: Not explicitly stated, but with a San Francisco HQ and a remote-friendly candidate experience (48% of interviews after hours), the company likely supports flexible/hybrid arrangements.
- **Notable perks**: Not detailed publicly, but as a Y Combinator-backed startup with strong investor support, expect competitive equity and the chance to shape a fast-growing product from an early stage.

## Sources
1. [alex.com](https://www.alex.com/)
2. [alex.com/platform](https://www.alex.com/platform)
3. [linkedin.com](https://www.linkedin.com/company/hire-alex)
4. [ycombinator.com](https://www.ycombinator.com/companies/alex-com)
5. [techcrunch.com](https://techcrunch.com/2025/09/29/ai-recruiter-alex-raises-17m-to-automate-initial-job-interviews/)

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