Senior AI Engineer

Senior AI Engineer

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.

What will this person do

• 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. It would also be great if you had the following:

• 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 REST APIs, microservices, event-driven architectures, and container orchestration (Kubernetes).
• Experience integrating with AI/ML services: model serving APIs, Azure OpenAI/LLM APIs, vector databases, or Hugging Face inference endpoints.
• Minimum of 5 years in database development (MS SQL, PostgreSQL, or equivalent), including query optimization and handling large datasets.
• Proficiency with Git, Gitflow, Azure DevOps (AZDO), and CI/CD pipeline automation.
• 1+ years of hands-on software development experience using modern AI-assisted Development tooling (e.g., Github Copilot, Claude, or Codex)

• At least 2 years of experience in Test-Driven Development (TDD) or unit testing.
• Experience with eDiscovery platforms (Relativity, Brainspace) or legal technology integrations is strongly preferred.

Duties are performed in a typical office environment while at a desk or computer table. Duties require the ability to use a computer, communicate over the telephone, and read printed material, in a quiet and professional setting. Duties may require being on call periodically and working outside normal working hours (evenings and weekends).

Lighthouse celebrates and thrives on diversity and is an Equal Opportunity Employer. We hire, train, and promote regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law. We welcome any talents and contributions you can bring to the team and are deeply committed to growing an environment where everyone can feel safe, is respected, and can show up as themselves. Come as you are!

As required by applicable pay transparency laws, Lighthouse complies with compensation disclosure requirements for roles that may be hired in locations under these requirements. Factors that may be used to determine your actual salary may include a wide array of factors, including: your specific skills and experience, geographic location, or other relevant factors. The salary range for this position may be tailored to be lower or higher in different talent markets.

Lighthouse offers a comprehensive quality benefits package including medical, dental, vision, and a 401k with company match. Company paid benefits also include Life & AD&D, short and long-term disability, telemedicine, and other wellness plans. We offer a generous Flexible PTO program and paid volunteer days. Employees may also participate in voluntary insurance plans including accident, hospitalization, and critical illness plans as well as pet insurance.

This role will be eligible to participate in an annual bonus or incentive program.

As a trailblazer and catalyst for change, Lighthouse rises to each opportunity to help our clients, and our people do what they do best — shine.