AI Developer

Lumen Dynamics strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. We are currently seeking a AI Developer (REMOTE) to join our team! This is a fully remote role and can be based anywhere in Canada. Job Responsibilities Include: Design and architect AI agents by defining workflows, objectives, reasoning logic, and decision-making processes. Develop AI-powered applications and intelligent agent solutions using Python and modern AI frameworks such as LangChain, LlamaIndex, and OpenAI SDK. Evaluate and select appropriate Large Language Models (LLMs) based on business use cases, scalability, latency, and performance requirements. Engineer, test, and optimize prompts to improve response accuracy, consistency, contextual relevance, and token efficiency. Build and implement Retrieval-Augmented Generation (RAG) solutions using vector databases and enterprise knowledge sources. Integrate external APIs, databases, enterprise applications, and third-party tools into AI agent pipelines. Develop scalable backend AI services and APIs using Python frameworks such as FastAPI and Flask. Create automated test cases and validation frameworks to evaluate AI outputs for reliability, bias, hallucinations, and performance. Monitor and optimize AI model performance including latency, throughput, token consumption, and infrastructure costs. Implement AI governance, security controls, data privacy, guardrails, and compliance standards across AI platforms. Collaborate with cross-functional teams including Data Engineering, DevOps, Product Management, and Security teams to deliver enterprise AI solutions. Participate in Agile/Scrum ceremonies including sprint planning, stand-ups, backlog grooming, demos, and retrospectives. Basic Qualifications: Minimum 5+ years of experience in software development with strong expertise in Python programming. Minimum 3+ years of experience developing AI/ML or Generative AI applications using Large Language Models (LLMs). Minimum 2+ years of hands-on experience with AI orchestration frameworks such as LangChain, LlamaIndex, Semantic Kernel, or similar tools. Minimum 3+ years of experience designing and consuming RESTful APIs and integrating third-party services. Strong experience with prompt engineering, prompt tuning, and AI response optimization techniques. Hands-on experience implementing Retrieval-Augmented Generation (RAG) architectures and vector database integrations. Experience deploying scalable AI services using FastAPI, Flask, or similar Python-based frameworks. Strong understanding of AI model evaluation, testing methodologies, bias detection, and quality assurance practices. Experience with cloud platforms such as AWS, Azure, or Google Cloud for AI solution deployment and monitoring. Knowledge of data privacy, AI security, governance frameworks, and responsible AI best practices. Strong skills in SQL, JSON, API authentication mechanisms (OAuth, API Keys), and data integration patterns. Experience working in Agile development environments with cross-functional engineering teams. Degree: Bachelor’s Degree in Computer Science, Artificial Intelligence, Data Science, Engineering, or equivalent work experience. Lumen Dynamics provides a reasonable range of compensation for Canada-based positions. The starting pay range for this remote role is $84,300 - $146,520 annual salary. For candidates in Ontario the starting pay range will be $84,360 - $134,360. This range reflects the minimum and maximum target compensation for the position across all Canada locations. Actual compensation will depend on a number of factors, including the candidate’s actual work location, relevant experience, technical skills, and other qualifications. This position may also be eligible for incentive compensation based on individual and/or company performance. This position is eligible for the Company’s comprehensive benefits program in Canada, including customizable health and dental coverage with telemedicine, wellness credits, and gym discounts. Employees receive income protection through life, disability, and optional insurance plans, plus access to a 24/7 Employee Assistance Program. Additional perks include retirement savings, a remote work allowance for eligible employees, and various discounts and travel insurance. Artificial intelligence tools are used in our recruitment process to screen, assess, or select applicants. . Responsabilités : Concevoir et architecturer des agents d'IA en définissant les flux de travail, les objectifs, la logique de raisonnement et les processus de décision. Développer des applications et des solutions d'agents intelligents basées sur l'IA à l'aide de Python et de frameworks d'IA modernes tels que LangChain, LlamaIndex et OpenAI SDK. Évaluer et sélectionner les modèles de langage étendus (LLM) les plus adaptés aux cas d'usage, à l'évolutivité, à la latence et a