Toolmill Briefswhat companies are building, read from their hiring

Company brief · updated 2026-10-18

Vapi

vapi.ai · B2B · Build, test, and deploy advanced voice AI agents in minutes with Vapi. The platform for developers creating conversational voice AI.

6open roles
2new in 30 days
20closed in 30 days
6remote-eligible
slowinghiring velocity

What they're building

Reliability and infrastructure for 99.99% call completion strong signal

Today: "Contractual uptime and performance guarantees, with reserved capacity sized to your volume."

Roles: Member of Technical Staff, Infrastructure Engineer · Member of Technical Staff, Infrastructure · Member of Technical Staff, Site Reliablity Engineer

Requirements mention: SRE · incident response · capacity planning · SLOs · error budgets · Kubernetes · Cilium

Inference: the Infrastructure posting already describes cell-based, multi-region infrastructure, so the next step is likely more regions and capacity for live calls.

Release, deployment and agent developer tooling moderate signal

Today: "Build, test, and deploy advanced voice AI agents in minutes with Vapi."

Roles: Member of Technical Staff, Agentic Release Engineer · Member of Technical Staff, DevOps · Member of Technical Staff, Agentic Developer Experience

Requirements mention: CI/CD · Argo CD · progressive delivery · agent harnesses · MCP integrations · multi-agent workflows

Inference: the Agentic Developer Experience posting describes a development lifecycle in which agents place real calls and ship verified work. This suggests Vapi's own release process will rely more on AI agents.

Direct sales and partner channel build-out strong signal

Today: "One platform for all your voice agents."

Roles: Senior Manager, Solutions Partners · Enterprise Account Executive · Mid Market Account Executive · Solutions Engineer - SF · Solutions Engineer - NY · Sales Development Representative (SDR) · Sales Recruiter

Requirements mention: partner-sourced pipeline · co-sell · closing $120k+ multi-stakeholder deals · outbound prospecting · repeatable outbound motions · Proven track record hiring quota-carrying sales reps

Inference: next is a larger partner-sourced pipeline through systems integrators, AI consultancies and CX agencies, alongside direct enterprise and mid-market selling.

Agent building, testing and monitoring product surface moderate signal

Today: "Configure everything from voice and conversation flow, to telephony and integrations." and "Track what's working across every call"

Roles: Member of Technical Staff, Backend · Senior Product Manager · Member of Technical Staff, Frontend · Product Designer — AI UX / Product Experience

Requirements mention: agent configuration · model evaluation or benchmarking · event-driven patterns · call logs · design system · AI product experiences

Inference: the Backend posting names Composer, Simulations, Monitoring, Knowledge Base, Versioning and Deployments, and the Senior Product Manager role covers agent building and model management. Together these suggest continued expansion of the tools customers use to configure, test and monitor agents.

Post-sale technical support and hands-on deployment weak signal

Today: "A dedicated engineer embedded in your team to get you live in a week."

Roles: Customer Support Engineer · Customer Support Engineer, Senior Manager · Member of Technical Staff, Forward Deployed

Requirements mention: technical support · enterprise accounts · tool-calling · SIP · WebRTC

Not enough evidence to infer a next step.

Billing, fraud and outbound telephony protection weak signal

Today: Telephony and usage on the platform ("Configure everything from voice and conversation flow, to telephony and integrations.")

Roles: Engineering Manager, Trust & Safety

Requirements mention: fraud · billing systems · billing

Not enough roles to infer a next step.

Where the headcount is going

DepartmentOpen
Sales3
Product2
Engineering1

Hiring leans to engineering: 10 of 23 roles, half of them in infrastructure, reliability and release. A go-to-market group of similar weight (5 Sales, 1 Marketing partner role, 2 Customer Engagement) suggests a company hardening its platform for live call volume while adding sales capacity.

Who they need

Seniority: 3 manager, 12 senior, 7 mid, 1 junior.

Skills named most: TypeScript, Go, Kubernetes, SIP, telephony, Postgres, Redis, Kafka, Python, WebRTC, Twilio, Envoy

Locations: 21 roles are marked remote; San Francisco is listed for 21 roles and New York for 2. The Member of Technical Staff, Infrastructure and the Sales Development Representative (SDR) roles are marked not remote. The postings do not state a country for remote roles.

How to use this

If you're applying: Check each posting's location and remote flag before applying. Half of the 10 Engineering roles are infrastructure, reliability, release or DevOps and list Kubernetes, Go and CI/CD. The other half cover frontend, backend, agent developer tooling, forward-deployed work and a Trust & Safety manager. Several postings list salary ranges, for example $280,000 to $314,000 for Infrastructure Engineer.

If you're selling or recruiting: Sales has 5 open roles and the Marketing partner role adds one more, all in San Francisco or New York. The Enterprise and Mid Market Account Executive roles have been open since November 2025. Engineering postings name Argo CD, Terraform, Atlantis, Pulumi, GitHub Actions, Kafka, Temporal, Postgres and ClickHouse, which is relevant for infrastructure, delivery and observability vendors. Hiring velocity is slowing: 3 roles opened in the last 30 days, 6 in the prior 30 days, and 1 closed.

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Open roles (6)

TitleDepartmentLocationPosted
Solutions EngineerSalesSan Francisco (remote)2026-10-22
Enterprise Account ExecutiveSalesNew York (remote)2026-10-22
Member of Technical Staff, Agentic Developer ExperienceEngineeringSan Francisco (remote)2026-08-25
Senior Product ManagerProductSan Francisco (remote)2026-08-13
Product Designer — AI UX / Product ExperienceProductSan Francisco (remote)2026-07-15
Enterprise Account ExecutiveSalesSan Francisco (remote)2026-10-22