Applied AI Engineer (Voice AI)

Location: Must be based in San Francisco, New York City, or London, with 3 days per week in-office attendance. Travel approximately 10–25% for customer visits, events, and team offsites.

Salary range: $150,000–$250,000 OTE in the United States; £90,000–£145,000 OTE in London, UK. Total compensation includes base salary, variable pay, and equity grants.

Company

hirify.global builds Voice AI models and proprietary inference infrastructure powering voice applications at high scale.

What you will do

• Own the technical side of customer accounts from initial conversations and evaluations through implementation, production rollout, and handoff.
• Design benchmarks, evaluate products, tune model configurations on real audio, and help customers build robust voice AI implementations.
• Build demos, prototypes, and proofs of concept in customer stacks; debug customer code and production issues across streaming and asynchronous APIs.
• Partner with Account Executives and maintain direct technical relationships with customer developers.
• Turn customer issues and patterns into reproducible cases and roadmap input for Product, Research, and Engineering.
• Create documentation, example code, developer resources, and represent hirify.global at meetups, conferences, and customer events.

Requirements

• Technical foundation through an engineering degree, coding bootcamp, software engineering role, or sales/solutions engineering role.
• Strong programming skills in Python and/or TypeScript/JavaScript, with the ability to read and debug other languages.
• Excellent written and verbal communication for customer messages, emails, and technical guides.
• Experience with web APIs, WebSockets, and real-time data streaming.
• Understanding of audio fundamentals including sample rates, encodings, and codecs, or the ability to learn them quickly.
• Fluency with AI tools such as Claude or Cursor for rapid prototyping, debugging, and problem solving.
• High urgency and persistence, plus comfort with ambiguity, context-switching, and managing multiple customers and priorities.
• Must be based in San Francisco, London, or New York City and attend an office 3 days per week.

Nice to have

• Startup or API-first company experience.
• Customer-facing experience as a solutions engineer, sales engineer, or developer advocate.
• Hands-on experience with voice agent frameworks such as LiveKit or Pipecat, or with speech models.
• Public speaking or community involvement.

Culture & Benefits

• Flat, high-ownership culture with direct access to tools, information, and decision-making.
• Work alongside Product, Research, and Engineering on voice AI problems at substantial inference and audio-processing scale.
• Competitive equity grants and 100% employer-paid benefits.
• 401(k) match up to 4% for US-based full-time team members.
• Regular customer visits, events, team offsites, and in-person collaboration are part of the role.

Hiring process

• Interview candidates may use AI according to hirify.global's Candidate AI Guidance throughout the application, take-home, and interview stages.
• Applicants from the EU or UK should review the GDPR Job Applicant Privacy Notice.