Principal Software Development Engineer - Business to Agent
AI summary of the role
This Principal Software Development Engineer role leads the technical vision and architecture for Expedia Group's new agentic marketing platform, building systems that make EG's supply, pricing, and brand legible and preferred by AI agents.
No longer in the current catalog. Last included 2026-09-09. Check the employer’s posting for availability.
What you’ll do
- Set technical vision and own the target architecture for the agentic marketing platform spanning data, services, workflows, experimentation, third-party APIs, and agent-facing surfaces.
- Design and ship systems that make EG content reliably machine-readable and preferred for different agent archetypes (horizontal agents, agentic commerce, browsers, co-workers).
- Build 0-to-1: stand up the first measurement, agent-observability, data/content, and agent-specific products (CLIs, indices, agents).
- Architect engineering workflows around fleets of autonomous coding agents and sub-agents, treating orchestration of agent labor as the core leverage model.
What you’ll bring
- 10+ years of hands-on software engineering experience (or 6+ with a Master’s)
- Hands-on experience with agentic / AI systems (LLMs, RAG, tools/MCPs, agent orchestration)
- Demonstrated expertise in systems architecture, API design, and integrating third-party products and platforms
- Strong proficiency in at least one modern backend language (e.g., Java, Kotlin, Go, Python, Scala)
Technologies
LLMs · RAG · MCPs · Kubernetes · AWS · Java · Kotlin · Go · Python · Scala · Claude · GitHub Copilot
About Expedia Group
Operates Expedia, Hotels.com, and Vrbo, connecting travelers with hotels, flights, and vacation rentals while monetizing supply partners via advertising and a B2B distribution marketplace.
Public · 5000+ people
Source and classification
Internal deployment & tooling · Evidence for this classification:
Expedia Group’s brands, focusing on establishing strong connections and cohesive experiences for travelers and partners. We leverage our functional expertise and creative excellence to build trust and loyalty for our brands through innovative marketing approaches and technology. At Expedia Group, we’re entering a new era where AI agents become a primary interface between travellers and brands, reshaping how intent, search, evaluation, and booking happen end‑to‑end. We were early in this space with our early investments, and we’re extending that foundation into a dedicated marketing capability focused on influencing agents across the full travel funnel. This role will be part of an AI‑native team that sits at the intersection of marketing, AI, and large‑scale platforms. We build the systems that make Expedia Group’s supply, pricing, and brand legible, accessible, and preferred by
More from the job description
Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future of travel, people must come first. Guided by our Values and Leadership Agreements, we foster an open culture where everyone belongs, differences are celebrated and know that when one of us wins, we all win. We provide a full benefits package, including exciting travel perks, generous time-off, parental leave, a flexible work model (with some pretty cool offices), and career development resources, all to fuel our employees' passion for travel and ensure a rewarding career journey. We’re building a more open world. Join us. We create and deliver tailored marketing strategies for Expedia Group’s brands, focusing on establishing strong connections and cohesive experiences for travelers and partners. We leverage our functional expertise and creative excellence to build trust and loyalty for our brands through innovative marketing approaches and technology. At Expedia Group, we’re entering a new era where AI agents become a primary interface between travellers and brands, reshaping how intent, search, evaluation, and booking happen end‑to‑end. We were early in this space w [... source excerpt omitted ...] ou’re excited to define how Expedia Group shows up to AI agents and build the systems that make us the number one AI agent marketer in travel, this role is for you. In this role, you will: Set technical vision for agentic marketing and own the outcomes Lead technical vision and own the target architecture for the agentic marketing platform - spanning data, services, workflows, experimentation, third-party APIs, and agent-facing surfaces - partnering closely with the agentic search lead, who owns channel strategy and outcomes. Translate the agentic search strategy and investment roadmap into a sequenced, opinionated engineering plan with clear trade‑offs and success criteria. [... source excerpt omitted ...] token consumption, AI vendor adoption, and unconventional experimentation (e.g., dedicated hardware for synthetic agent-log generation) - and spend it to maximize speed. Minimum qualifications 10+ years of hands-on software engineering experience (or 6+ with a Master’s) Hands-on experience with agentic / AI systems (LLMs, RAG, tools/MCPs, agent orchestration) Demonstrated expertise in systems architecture, API design, and integrating third-party products and platforms Product sense, ability to reason about what to build and for whom, prioritize on desirability / feasibility / viability, and partner with product as a peer Strong proficiency in at least one modern backend language
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