Principal Product Engineer, AI Platform Architect (Hybrid)

Dex; Greater London; Hybrid; GBP 120,000 - 180,000; Full time

Job summary

Dex is seeking a Principal Product Engineer to set the technical strategy for the entire engineering organization, balancing hands-on delivery with high-leverage code changes. You will define architecture across multiple squads, mitigate systemic risks, and scale production systems to serve thousands of users across regions.

You will collaborate with executives to translate business goals into technical roadmaps, mentor senior engineers, and drive cross-functional alignment in a hybrid setup

Qualifications

• Proven track record defining architecture and technical strategy across multiple squads.
• Deep full-stack engineering foundations with production-scale systems experience.
• Strong business sense and ability to translate engineering constraints into strategy.
• Hands-on with AI integration and modern model capabilities in products.
• Excellent communication with executives and cross-functional teams.

Responsibilities

• Set overarching technical architecture and engineering standards as AI capabilities embed into the product.
• Identify and resolve systemic architectural risks and dependencies between squads.
• Develop and deploy scalable systems handling high throughput and global users.
• Partner with executives to turn business goals into pragmatic technical roadmaps.
• Mentor senior engineers through system design reviews and hands-on pairing.

Skills

Architecture strategy

Full-stack engineering

Cross-team collaboration

AI fluency

Executive communication

Job description

Dex is seeking a Principal Product Engineer to set the technical strategy for the entire engineering organization, balancing hands-on delivery with high-leverage code changes. You will define architecture across multiple squads, mitigate systemic risks, and scale production systems to serve thousands of users across regions.

You will collaborate with executives to translate business goals into technical roadmaps, mentor senior engineers, and drive cross-functional alignment in a hybrid setup