# Principal Software Engineer (Hybrid) at 8th Light

8th Light, a Chicago-based technology consultancy founded in 2006, is seeking a Principal Engineer to join their London office on a hybrid basis (one day weekly in-office). You'll partner with clients ranging from startups to Fortune 500 companies, tackling complex software challenges and delivering durable solutions across platforms, infrastructure, and AI-driven products.

In this role, you'll serve as a trusted technical strategist and go-to expert, typically working with one or two clients annually while building deep domain knowledge. Your responsibilities include rapidly establishing credibility with clients, driving platform engineering initiatives, advising on architecture and scalability, and connecting technical decisions to business outcomes. You'll lead work spanning the full machine learning lifecycle, from data preparation through model deployment and monitoring, while balancing pragmatic technology choices with quality delivery.

This position suits seasoned engineers with 10+ years of proven success across diverse projects and technology stacks. You should bring experience shipping production-grade platforms, moving AI systems from prototype to production, leading high-stakes consulting engagements, and mentoring teams at scale. Proficiency across multiple languages and frameworks—Java, C#/.NET, Python, TypeScript, Go, Ruby, and others—is expected, along with hands-on experience integrating AI/ML features like recommendation engines, NLP, computer vision, and RAG pipelines.

Location: London, England, United Kingdom

Apply: https://getfoundi.com/apply/principal-software-engineer-hybrid-8th-light-5c49d030

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