Full Stack Developer L3 /Agentic AI

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 Next.js 

• 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 Node.js 

• Experience developing applications using React, Next.js, 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.