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Rounds/Retell/Software Engineer, Founders Initiatives·#84425
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AI·Series A·Redwood City, California

Software Engineer, Founders Initiatives

at RetellAI
Location
Redwood City, California
Salary
$160,000 - $270,000
Type
Full-Time
About Retell
Retell AI is building the modern CX platform for enterprise contact centers, using first-principles voice AI to automate sales, support, and logistics calls at scale. Thousands of companies—including CVS/Aetna, American Airlines, Lenovo, and Grab—use Retell's AI voice agents to replace large teams of human agents, with the platform powering everything from frontline agents to QA analysts and managers. Backed by Y Combinator (W24), Alt Capital, and Carya Venture Partners, Retell claims $80M ARR as of August 2026 (public data: $60M+ as of April 2026), up from $5M at the start of 2025, and a valuation north of $1.5B. The team is 50 strong, with alumni from Stripe (payments lead), Google AI research, and Facebook product. The company has been recognized as a top AI app by a16z, #3 Fastest-Growing Software Company (G2 2026), and a member of the Nasdaq & Wing VC Enterprise Tech 30 (2026). The vision: a fully AI-powered contact center where intelligent agents continuously execute, monitor, and improve every customer interaction—no more basic automation that needs constant human tuning. The market believes: Retell is the fastest-growing voice AI company in the category, with real revenue, enterprise traction, and a reputation for technical depth.
Series A • 51 – 200
Stage & size
AI
Industry
2023
Founded
About This Role

The mandate: Design and build the internal and external AI systems that power how Retell hires, sells, operates, and scales — production AI workflows, automations, and agent systems — on the Founders Initiatives team, working directly with the founders. This req combines the two strongest features across the cluster. From the Internal Deployed Engineer posting: explicit openness to 0–1 years, full comp band, equity, O-1. From the New Grad posting: the two-track career path, which is the single best thing in any Founders Initiatives JD. The two paths after joining:

  • Customer-facing — work with enterprise customers, design AI solutions, build integrations, become a trusted technical advisor. This is the on-ramp to Retell's Senior Forward Deployed Engineer track.

  • Internal engineering — AI systems, internal tooling, automations, and infrastructure. Most engineers touch both early and lean into one over time. Make this central to outreach. A new grad who doesn't yet know whether they're a customer-facing engineer or a deep technical one gets to find out on the job rather than guessing at offer time. Almost no new-grad role offers that. "This is not a narrowly scoped role, it is a high ownership builder position." What You'll Own HR and recruiting AI

  • Structured signal extraction from résumés — skills, experience, founder traits, domain expertise

  • Lead scoring models predicting interview success and role fit

  • AI recruiter workflows for screening and qualification

  • Personalized outbound and candidate engagement automation Security and compliance

  • Automation for BAAs, DPAs, DocuSign, and contract review flows

  • Security questionnaire and compliance response generation

  • Internal tooling for enterprise readiness and audit Operational infrastructure

  • Accounts receivable automation and finance email workflows

  • Automated enterprise onboarding and account setup

  • Systems that cut manual overhead across teams Integrations and platform

  • Salesforce, HubSpot, GoHighLevel

  • Zapier, n8n, Make

  • LLM systems on OpenAI, Gemini, Claude, and others

  • API integrations connecting internal systems GTM engineering

  • HubSpot and Lark automations for sales and marketing efficiency

  • Lifecycle automation for engagement and retention

  • Website personalization and ad content generation

  • Email personalization and outbound pipelines at scale Requirements Hard gates:

  • Bachelor's in CS, CE, or a closely related technical field. "Closely related" is softer phrasing than the New Grad req's CS/CE/EE — more room here.

  • New grad or up to 1 year of professional software engineering experience. Note this is framed as a ceiling, not a floor. Confirm whether a 2–3 year engineer would be considered — the sibling reqs cover them, so probably not, but recruiters need to know before they source.

  • Strong software engineering fundamentalsbackend, full-stack, or systems. The 90-minute coding round is the gate.

  • Demonstrated exceptional ability through internships, research, startup work, or meaningful side projects

  • Hands-on LLM, AI agent, or modern AI tooling experience — listed as a requirement here, unlike the New Grad req where it was preferred. Internships, research, or personal projects all count.

  • Redwood City (confirm on-site status) Profile:

  • Founder mindset, ownership from day one

  • Excited to work across product, engineering, and operations

  • Moves fast, learns fast, thrives in ambiguity

  • Prefers end-to-end systems over defined tasks

  • Cares about real customer problems Strong bonuses:

  • A shipped side project with real users — highest-signal item for this pool, substitutes for professional experience better than any internship

  • An AI or agent project specifically — given AI tooling is a stated requirement, having built one is the fastest way to clear the bar

  • Hackathon wins, especially AI and agent tracks

  • Startup internship at a company under 50 people with real scope

  • Research with a shipped artifact

  • Open-source contributions with actual usage

  • Competitive programming or CS competition results

  • Built something that automated a real process for a real organization Location and visa:

  • Redwood City

  • Sponsorship: H-1B, TN, L-1, E-3, F-1 (OPT/CPT), and O-1. F-1 OPT/CPT is decisive here — this is a high-comp new-grad role at a company that sponsors, which most of the international CS graduating class cannot find. Anti-patterns

  • Candidates who need structure, mentorship, or an onboarding ramp

  • Strong interviewers with nothing built independently — project deep dives happen twice

  • No AI or LLM exposure at all; it's a stated requirement on this req

  • Anyone who'd rather be on the core product team and sees internal systems as second-tier

  • No-code operators — the 90-minute coding round is the filter

  • Candidates optimizing for company brand over scope

  • Remote requirements Who Will Thrive Here

Someone who's been building things nobody assigned since they were seventeen, has an AI project with real users, and would rather own a system the whole company runs on than be the junior engineer on a large team. They're comfortable with "figure it out." They see recruiting automation and invoicing as problems with an owner attached, which is more responsibility than most engineers their age get for a decade.

Job Details
Experience
3-8 Years
Salary
$160,000 - $270,000
Visa Sponsorship
Yes
Employment Type
Full-Time
Work Arrangement
In office
Work Intensity
9-9-5
Benefits & Perks
$75/month Phone Bill Reimbursement
$50/month Internet Reimbursement
100% Coverage For Medical Dental And Vision Insurance
$300/month Commuter Reimbursement(gas Caltrain Etc.)
$200/month Wellness Reimbursement(gym Fitness Classes Etc.)
$70/day Doordash Credit For Unlimited Breakfast Lunch Dinner And Snacks
Green Flags
Internship, research, or side project with real shipped impact
Built LLM-powered or agentic systems (not just toy demos)
Startup experience or founder-level ownership in prior work
Red Flags
No evidence of shipped projects, internships, or research
Pure academic with no practical engineering output
Only narrow, task-based experience—no end-to-end builds

Required Candidate Q&A

Question 1
Are you based in the San Francisco Bay Area or willing to relocate for an in-office role in Redwood City?
Question 2
What is your current visa status, and are you eligible for US work authorization or sponsorship?
Question 3
Walk through a project, internship, or research experience where you built an end-to-end system—what was your ownership and what did you ship?
Question 4
Describe your hands-on experience with LLMs, AI agents, or modern AI tooling (internships, research, or personal projects).
Question 5
Tell us about a time you operated in a highly ambiguous environment—how did you move quickly and learn fast?
Question 6
Do you prefer building end-to-end systems or working on narrowly defined tasks? Why?
Question 7
What about Retell's mission or this team specifically pulls you?

Candidate scorecard

· 11 criteria
Bachelor's in CS, CE, or closely related technical field
0–1 years of professional software engineering experience (exceptional new grads considered)
Demonstrated engineering ability via internships, research, startup work, or side projects
Rounds · Confidential to recruiting partners · Last refreshed Aug 21, 2026