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This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Product Engineer Salary Not Disclosed Company Description River is a $2M pre-seed NYC startup building AI voice agents for B2B SaaS sales teams, backed by the founders of Ramp, Kalshi, and JumpCloud. Job Description You will build River’s core product across the stack, focusing on the backend services powering live AI voice calls and browser-automation demos. Working directly with founders, you’ll ship LLM workflows and enrichment pipelines that allow AI agents to qualify and close deals in real-time, seeing your code live in sales calls within days. Location New York, USA Why this role is remarkable Ship to production and watch your work drive real-time sales calls the same week, offering immediate feedback loops and high impact. Work directly with founders at a $2M pre-seed company backed by top-tier operators from Ramp, Kalshi, and JumpCloud. Define a new category by building "Liv," an AI agent that goes beyond chat to actually control browsers and demo products autonomously. What You Will Do Develop backend services and APIs using Node.js and TypeScript to manage live call sessions, state, and complex data integrations. Build and refine LLM-powered workflows and prompts that guide the AI agent through live product demos and objection handling. Engineer the browser-automation agent that navigates complex UIs in real-time while the voice agent interacts with prospective buyers. The ideal candidate Has 1–3+ years of experience shipping real-world software, with deep proficiency in TypeScript, Node.js, and modern React environments. Demonstrates hands-on experience building applications with LLMs and possesses a strong product sense for how AI interactions should feel. Brings a background in voice, video, or real-time infrastructure, specifically from a company specializing in voice or video AI applications. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. How does this work? Jack's an AI agent for job searching and career coaching. He works for you. Jill is the AI recruiter working for the company. She recruits from Jack's network. If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.