✦ Luna Orbit — AI & Machine Learning

Senior AI Engineer

at WEX Inc.

📍 Remote, US Remote 💰 $185K – $217K USD / year Posted March 20, 2026
Salary $185K – $217K USD / year
Type Full-Time
Experience senior
Exp. Years 5+ years
Education Bachelor's degree in Computer Science, Software Engineering, or related field; a Master’s or PhD in AI/ML is preferred
Category AI & Machine Learning

This role involves leading the development and deployment of advanced AI and Machine Learning models, focusing on generative AI, scalable systems, and infrastructure automation within a SaaS environment.

  • Architecting scalable AI systems
  • Leading model development and evaluation
  • Mentoring junior engineers
  • Partnering with stakeholders
  • Evaluating emerging AI technologies

The technical environment includes AI/ML model development, cloud infrastructure automation with Terraform, CI/CD pipelines with GitHub Actions, and working with large language models and RAG architectures.

The ideal candidate is a senior AI/ML engineer with over 5 years of experience in developing and deploying scalable AI solutions. They possess deep expertise in generative AI, LLMs, and infrastructure automation, with strong leadership and mentoring skills.

5+ years of experience as an AI/ML EngineerData Scientistor Software EngineerExperience with AI/ML production systemsProven track record of scalable AI solutionsDeep experience with Generative AIArchitecting scalable systemsMentoring junior engineersPartnering with stakeholdersDeploying AI/ML modelsExperience with CI/CD pipelinesInfrastructure as Code (Terraform)
LLM proficiencyRAG architecturesTerraformModel monitoringData scienceAI vendors evaluation
TerraformGitHub ActionsAI platformsData-driven tools
PythonJavaC#GoLangMachine LearningAILLMsRAG architecturesTerraformGitHub ActionsData-driven toolsAI platformsModel developmentModel evaluationModel fine-tuningModel monitoring
PythonJavaC#GoLangMachine LearningAILLMsRAG architecturesTerraformGitHub ActionsData-driven toolsAI platformsModel developmentModel evaluationModel fine-tuningModel monitoring
LeadershipMentoringCollaborationCommunicationProblem-solvingInnovationTechnical standards settingTeam partnership
Industry SaaS
Job Function Lead AI engineering initiatives to develop scalable, secure, and innovative AI solutions.
Role Subtype AI & Machine Learning
Tech Domains Python, Java, C#, GoLang, Terraform, GitHub Actions
AI engineerMachine LearningLLMsRAG architecturesTerraformGitHub ActionsAI platformsModel developmentModel evaluationModel fine-tuningModel monitoringData-driven toolsAI solutionsScalable systemsDeep experience with Generative AI

Less than 5 years of AI/ML experience, Lack of experience with scalable AI systems, No experience with AI model deployment, No familiarity with Terraform or CI/CD pipelines, No experience with generative AI

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