Lead Product Engineer (AI)

Location: London, United Kingdom; on site four days a week. London-based candidates only. The office is on Baker Street and will move to Primrose Hill within a couple of months.

Company

hirify.global is an applied AI research firm building a harness over frontier models, especially video generation models, to run ideation, generation and distribution end to end and improve through real-audience data.

What you will do

• Own and launch the upcoming AI-native, customer-facing B2C product end to end, with strong attention to UX and model capabilities.
• Lead product engineering, make product decisions with the founders, and set the standard for shipping as the team grows.
• Work across the stack on the harness and surrounding products.
• Build and ship on V3 of the harness as it moves from internal release into wider use.
• Own work independently, collaborate closely with the CTO and engineers, and explain technical ideas clearly.

Requirements

• Four or more years of hands-on engineering experience, including experience in the AI-native era.
• Previous ownership of a substantial project or product, with examples that can be presented.
• Strong initiative, leadership, communication, and ability to work independently.
• Live in London and be willing to work in the office four days a week.
• Do not require visa sponsorship at this stage; the company cannot sponsor until about February next year. A visa running well past February is acceptable.
• Experience with Python, TypeScript, Postgres, LLM and generative model APIs, and open-weight models.
• Experience building, deploying, and operating production back-end systems is a strong plus.
• Keep up with current technology stacks, models, and engineering practices, and have side projects beyond academic or professional work.

Nice to have

• Degree in computer science, engineering, maths, statistics, or a similar field; an MSc or PhD is also a plus.
• Experience in applied generative media or creative companies.
• A notice period of one month is acceptable.

Culture & Benefits

• Seed-stage, profitable company with a ten-person flat team.
• Direct access to the CTO and founders, with scope to grow into a more senior role.
• Opportunity to work on a high-ceiling problem with real clients including Sony, Warner, and Universal.
• Full-time work in the London office four days per week.

Hiring process

• Send a LinkedIn profile or CV to Alexander at the agency.
• Complete a screening call, followed by an interview with the head of operations, a technical interview with the CTO, and a take-home technical assessment.
• A final onsite round may be used when candidates are difficult to distinguish; strong candidates may proceed directly to the CTO.