Senior Software Engineer, GTM

Retell AI is using the first principles to reimagine the call center with cutting edge voice AI.

Since launching 18 months ago, thousands of companies now utilize Retell’s AI voice agents to handle sales, support, and logistics calls that once required large teams of human agents. Backed by Y Combinator, Alt Capital, and other leading investors, we have scaled to $36M ARR with a team of 20 people, up from $5M at the start of 2025.

Our vision for 2026 is to build a modern CX platform where entire contact centers are powered by AI. Instead of basic automation that needs constant human tuning, we’re creating intelligent AI “workers” that can act as frontline agents, QA analysts, and managers — continuously executing, monitoring, and improving customer interactions.

We’re growing quickly and looking for ambitious builders who want to tackle hard technical problems, move fast, and have real impact at one of the fastest-growing voice AI startups.

Let’s build the future together.

• We’re a top 50 AI app in a16z list: https://tinyurl.com/5853dt2x

• #4 on Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025

• We're also one of the top ranking startups on: https://leanaileaderboard.com/

We're looking for a Senior Software Engineer, GTM who builds the internal systems that power our go-to-market engine. This is not a tools-admin role. You'll write production code, ship custom integrations, and build internal software that makes our GTM motion faster, smarter, and more reliable.

You'll own the full technical stack behind lead flow, enrichment, routing, automation, and reporting. You'll partner closely with sales, growth, and product to design and build scalable systems that directly impact pipeline and revenue.

Think of this as a software engineering role where the "product" is our GTM infrastructure.

• Design, build, and maintain custom internal tools and services that power our GTM workflows (lead capture, enrichment, routing, outreach, reporting)

• Write production-quality code (Python, JavaScript/TypeScript, or SQL) to ship integrations between internal systems and external APIs

• Build and own data pipelines that ensure quality and consistency across the funnel, from top-of-funnel acquisition through closed-won

• Architect and improve our GTM outbound stack, connecting tools like Hubspot, enrichment APIs (Apollo, Clearbit), and automation layers -- writing custom code where off-the-shelf solutions fall short

• Create internal dashboards, scripts, and developer tools that improve sales team efficiency and visibility

• Continuously ship improvements that measurably impact pipeline generation and conversion

• You have a software engineering background -- you've built and shipped real software, not just configured tools

• You have 3+ years of professional software engineering experience, with strong skills in Python, JavaScript/TypeScript, or similar languages

• You've built production integrations, internal tools, or data pipelines from scratch

• You understand the modern GTM stack and can identify where custom engineering beats off-the-shelf tooling

• You think beyond tooling -- you understand why data matters and how it influences sales outcomes

• You've shipped systems that materially changed how a revenue team operates

• You enjoy owning ambiguous problems and turning them into scalable, well-engineered solutions

• Cash: $200,000 – $300,000 base

• Equity: Offer Equity

• Location: Redwood City, CA (Relocation Provided)

• US Visas: Retell AI is open to sponsoring work authorization for qualified candidates, including H-1B, TN, L-1, E-3, F-1 (OPT/CPT), and O-1 visas.

• 100% coverage for medical, dental, and vision insurance

• $70/day DoorDash credit for unlimited breakfast, lunch, dinner, and snacks

• $200/month wellness reimbursement (gym, fitness classes, etc.)

• $300/month commuter reimbursement (gas, Caltrain, etc.)

• $75/month phone bill reimbursement

• $50/month internet reimbursement

• Best Offer Upfront: Choose from three cash-equity balance options; no negotiation needed.

• Top 1% Talent: Above-market pay (top 5 percentile) to attract exceptional builders.

• High Ownership: Small teams, >$1M revenue/employee, and significant equity.

• Performance-Based: Offers tied to interview performance, not experience or past salaries.

1. Intro Screen (15 mins): Introductory conversation to review your background, past engineering work, and overall fit for the role.

2. Practical Coding Round (60 mins): Building an end-to-end GTM automation.

3. Automation System Design Round (30 mins): Showcase your initiative and creative thinking skillset.

4. Onsite: Includes a hands-on engineering build, a cross-functional conversation with a business stakeholder, and a final discussion focused on strategy, vision, and long-term fit.