Principal Software Development Engineer, Agentic AI (AI Engineering)

TL;DR

Principal Software Development Engineer (AI Engineering): Leading the architecture, design, and delivery of complex, distributed systems that power high-scale, mission-critical services for Expedia travelers and partners with an accent on LLM-powered AI Agent servicing and Agentic AI engineering skillsets. Focus on scalable, voice and chat based self-service experiences powered by AI agents to reduce customer effort while improving resolution speed and customer satisfaction.

Location: Must be based in Seattle, Washington

Salary: $231,000.00 to $323,500.00

Company

hirify.global brands power global travel for everyone, everywhere.

What you will do

• Lead the architecture, design, and delivery of complex, distributed systems that power high-scale, mission-critical services.
• Define and evolve technical strategy and roadmaps for your domain, making high-impact design decisions and setting engineering best practices.
• Write and review high-quality, production-grade code and drive continuous improvements in reliability, performance, security, and cost efficiency.
• Partner closely with product, program, and other engineering teams to translate business problems into end-to-end technical solutions.
• Act as a technical mentor and multiplier, coaching senior engineers, influencing technical direction across teams, and raising the overall engineering bar.
• Champion engineering quality, security, and compliance standards, ensuring solutions are robust, scalable, and sustainable.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience.
• 10+ years of professional experience in software development building backend or full-stack systems in production.
• Strong expertise in at least one modern programming language (e.g., Java, Kotlin, C#, Go, Python, or similar).
• Proven experience designing and operating distributed, cloud-based systems (microservices, APIs, event-driven architectures, data stores).
• Demonstrated ownership of end-to-end solutions from design through implementation, launch, and ongoing operations.
• Excellent communication and collaboration skills, with a track record of influencing across teams and organizations.

Nice to have

• Experience as a principal-level engineer or equivalent, setting technical direction for multiple teams or services.
• Hands-on experience with public cloud platforms (e.g., AWS, GCP, Azure) and cloud-native technologies (containers, orchestration, service mesh).
• Familiarity with integrating data or ML-powered features into production services (e.g., recommendations, ranking, personalization, risk/fraud signals).

Culture & Benefits

• Full benefits package, including exciting travel perks, generous time-off, parental leave, a flexible work model, and career development resources.
• Wellness & travel reimbursement, travel discounts, and an International Airlines Travel Agent (IATAN) membership.
• Open culture where everyone belongs, differences are celebrated and know that when one of us wins, we all win.