Full Stack Developer L3

1 week ago

Calgary BC Toronto RemoteFriendly, Canada Robots and Pencils Full time $80,000 - $120,000 per year

Employment Type: Full-Time 

Robots & Pencils is seeking a Full Stack Developer (Level 3) to contribute to the development of conversational and agentic AI applications within our AI & Agents practice. This team is responsible for creating, scaling, and maintaining intelligent, interactive chat and automation systems that enable seamless, human-like customer experiences. 

The Full Stack Developer will work across both front-end and backend systems to design and implement features that power agentic chat experiences, integrating large language models (LLMs), real-time data, and robust APIs. The role requires strong software engineering fundamentals, practical experience with AI-assisted development tools, and a collaborative approach to problem-solving. 

Key Responsibilities 

Engineering and Development 

Design, build, and maintain full stack web applications that support agentic and conversational AI experiences Develop scalable backend services and APIs to support real-time chat, workflow orchestration, and data processing Implement intuitive, high-performance frontends using modern frameworks such as React or  Integrate LLMs, agent frameworks, and external APIs to enhance automation and user experience Contribute to architectural decisions and design reviews, ensuring reliability, security, and maintainability Utilize AI development tools such as GitHub Copilot, Claude Code, or OpenAI Codex to accelerate prototyping and delivery 

Collaboration and Delivery 

Work closely with product managers, UX designers, and cross-functional teams to define and implement product features Participate in sprint planning, code reviews, and release coordination Support continuous integration and deployment pipelines, ensuring smooth delivery and testing processes Collaborate on AI model integration and prompt design in support of intelligent application behavior Communicate technical trade-offs and recommendations clearly to both technical and non-technical stakeholders 

Innovation and Continuous Improvement 

Explore and adopt new frameworks, libraries, and tools that enhance engineering productivity and system performance Contribute to team knowledge sharing and documentation around emerging AI and agentic development practices Apply creative problem-solving to improve scalability, latency, and user experience Support experimentation, evaluation, and iteration of AI-powered product features 

Required Skills and Qualifications 

5+ years of professional experience in full stack software development Proficiency in JavaScript, TypeScript, and at least one backend language such as Python or  Experience developing applications using React, , or similar frontend frameworks Strong understanding of API development, microservices, and REST or GraphQL patterns Familiarity with cloud infrastructure (AWS, Azure, or GCP) and DevOps workflows (Docker, CI/CD) Experience using AI-assisted development tools such as GitHub Copilot, Claude Code, or OpenAI Codex Solid understanding of software design principles, testing strategies, and version control practices Strong collaboration and communication skills, with the ability to explain technical concepts to varied audiences Upper-intermediate English proficiency for effective cross-functional communication 

Preferred Qualifications 

Experience with AI agent frameworks such as LangChain, LangGraph, or Hugging Face Knowledge of conversational AI or chatbot architectures Experience integrating with large language model APIs (OpenAI, Anthropic, AWS Bedrock, etc.) Familiarity with NLU, AI evaluation, or reinforcement learning methodologies Experience building or maintaining scalable distributed systems in production Exposure to AI infrastructure or evaluation frameworks 

Personal Competencies 

Technical curiosity – explores emerging tools and frameworks to improve engineering outcomes Collaboration – works effectively across product, design, and AI teams Accountability – takes ownership of end-to-end delivery and system quality Adaptability – thrives in fast-paced, evolving environments and adjusts to shifting priorities Problem solving – approaches challenges with creativity and structured thinking Communication – translates technical decisions into clear explanations for diverse audiences Continuous improvement – contributes to evolving team standards, practices, and delivery excellence 

Why Join Robots & Pencils?

We don't just ship features, we build digital-first products that matter. As a Senior Engineer, you'll join a team that values deep craft, cross-functional collaboration, and relentless focus on quality. You'll work on impactful agentic AI applications using modern technologies, while influencing engineering culture and best practices across the organization.

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