Senior Product Engineer (AI)

Location: Stockholm, Sweden; hybrid workplace with a minimum of 3 days per week in the office and 2 flexible-location days

Company

hirify.global is an adtech product company developing video advertising technology for brands, agencies, and publishers across the open web.

What you will do

• Shape the architecture and technical approach for Creative Manager, an AI-driven campaign workflow product.
• Build customer-facing UI flows and the domain model, APIs, and integrations behind them.
• Complete the workflow from campaign approval to publishing across partner ad platforms.
• Use AI to interpret media plans in different formats, supported by evaluations and user-facing uncertainty signals.
• Handle hundreds of campaign assets, including bulk changes and naming conventions.
• Work directly with customers, campaign producers, product, and design to discover, ship, measure, and operate product improvements.

Requirements

• Experience taking customer-facing products from an unclear starting point into production and operating them over time.
• Practical full-stack engineering experience building complex UI flows and designing domain models, APIs, and integrations.
• Strong habits in performance, testing, reliability, and failure handling.
• Product judgment and the ability to balance foundational engineering with fast delivery.
• Daily experience with AI coding tools, including the ability to verify their output and debug systems independently.
• Experience with TypeScript, Vue, Node, and PostgreSQL is relevant; strong fundamentals and engineering judgment are prioritized over framework-specific experience.

Nice to have

• Experience with creative or content production tools, advertising technology, or complex B2B workflows.
• Experience with third-party platform integrations, high-volume event data, or video delivery.
• Experience building LLM features in production.

Culture & Benefits

• Small cross-functional teams with end-to-end ownership of product decisions, delivery, and operations.
• Close collaboration with customers and campaign producers, with discovery and prototyping included in product development.
• Early shipping, measurement, observability, reliability, and recovery are treated as part of product development.
• AI tools are used heavily in development, with engineers accountable for shipped code and product safeguards.
• Hybrid work policy with three office days and two flexible-location days.

Hiring process

• Applications and interviews are reviewed continuously.
• Background checks are conducted for all hires.