Senior AI Engineer

About the role

Lighthouse is built on a foundation of unique, compassionate, highly driven individuals. We elevate the strengths and talents of those around us while leveraging opportunities for growth. We offer the experience of solving complex problems while continuing to grow multiple facets of your career. Lighthouse is where innovation meets support and where collaboration is the key ingredient to success. We grow together and are stronger together.

The Senior AI Engineer on the AI Platform team addresses advanced eDiscovery AI challenges through innovative software solutions. This role is pivotal in designing and developing production-grade software products that integrate Predictive AI (document classification, TAR scoring engines) and Generative AI (LLM-powered document analysis, RAG pipelines, privilege detection) capabilities into eDiscovery review workflows. The focus is on building cutting-edge, scalable software systems that minimize manual review effort, enhance decision quality, and deliver measurable value to legal clients.

Responsibilities

• Design and develop comprehensive software applications and services that deliver eDiscovery AI capabilities — including TAR/CAL workflow engines, document scoring orchestration, Generative AI output pipelines, and reviewer-facing APIs.
• Architect and implement cloud services on Microsoft Azure that integrate model serving endpoints, vector search services, LLM APIs (Azure OpenAI), and eDiscovery platform connectors.
• Collaborate with data scientists to translate ML model outputs into reliable, scalable software services that meet legal defensibility and performance requirements.
• Develop and implement cloud services leveraging Azure Service Bus, Azure Functions, and Kubernetes for high-throughput document processing at multi-million document scale.
• Write detailed non-functional software requirements; analyze requirements for feasibility within time and cost constraints.
• Lead and implement software solutions using SOLID principles, design patterns, defensive programming, and OOP best practices.
• Coach and mentor team members in advanced technologies, integration patterns for AI services, and software engineering best practices.
• Enhance agile engineering processes and advocate for engineering productivity tools and best practices.
• Handle additional duties as assigned.
• Bring your passion and together we will shine.

Requirements

• Strong proficiency in C# (.NET Framework, .NET Core, ASP.NET Core) with at least 7 years of professional development experience.
• Minimum of 5 years in building cloud-connected software on Azure, including experience with