Senior Software Engineer, Training & Experimentation (AI)

Location: London, England, United Kingdom; New York, New York, United States; or San Francisco, California, United States. Hybrid work with a minimum of 2 in-office days per week and occasional team and company offsites.

Annual base salary: $180,000–$250,000 USD, plus a discretionary bonus, equity, and benefits.

Company

hirify.global builds an end-to-end platform for developing, training, and deploying AI systems, combining developer-focused software with large-scale AI compute.

What you will do

• Design and build backend services for AI agent orchestration and execution.
• Develop scalable APIs and platform capabilities for tool use, workflow orchestration, memory, and state management.
• Build reliable infrastructure for long-running, distributed AI workflows.
• Partner with product, research, and platform engineering teams to bring agent capabilities into production.
• Improve platform reliability, observability, performance, testing, automation, and continuous delivery.
• Mentor engineers on system design, distributed systems, and backend engineering practices.

Requirements

• Extensive experience building scalable backend systems with Go, Python, Rust, or similar languages.
• Strong understanding of distributed systems, asynchronous processing, APIs, and cloud-native application architecture.
• Experience designing and operating production services at scale and building backend platforms, developer tools, or infrastructure products.
• Familiarity with AWS, GCP, or Azure, as well as Docker and Kubernetes.
• Experience owning large technical initiatives from architecture through production, with a focus on automated testing, observability, and continuous delivery.
• Strong communication and cross-functional collaboration skills in fast-moving, ambiguous environments.

Culture & Benefits

• Ownership-driven, fast-moving environment focused on open communication, continuous improvement, and long-term scalable systems.
• Medical, dental, and vision coverage for employees and eligible dependents.
• Equity, retirement savings contributions, unlimited PTO, company holidays, and a two-week winter break.
• Paid parental and family leave, wellness and work-from-home stipends, and an annual learning and development allowance.
• Four weeks of paid sabbatical leave after four years of service.
• Flexible schedules, hybrid office work, and complimentary meals at office hubs.

Hiring process

• Final offers consider experience, skills, geographic location, and role expectations.
• Benefits vary by location, team, and role.