Principal Full Stack Engineer (Agentic Systems & Enablement)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Principal Full Stack Engineer (Agentic Systems & Enablement) based in Brazil. We are looking for an experienced Principal Full Stack Engineer to accelerate enterprise software delivery while introducing and scaling advanced AI-driven development practices. In this highly hands-on role, you will combine deep expertise in Java, Spring Boot, TypeScript, and React with modern agentic coding workflows, particularly using Claude Code. You will work directly with client engineering teams to build production-ready features, optimize existing codebases, and integrate AI-assisted development into everyday engineering processes. Beyond delivering technical solutions, you will mentor developers and help establish reliable workflows, architectural standards, and quality guardrails. This is an opportunity to influence how engineering teams build software, improve productivity, and adopt emerging AI technologies in a collaborative, fully remote consulting environment. Accountabilities: As a Principal Full Stack Engineer, you will lead by example through hands-on software development, technical consulting, and engineering enablement. You will help client teams adopt production-ready agentic development practices while ensuring that software quality, architectural consistency, and delivery standards remain high. • Full Stack Development & Delivery: • Build, enhance, and maintain complex enterprise applications using Java, Spring Boot, TypeScript, and React. • Develop backend services, APIs, and modern frontend components that meet business and technical requirements. • Contribute directly to production features throughout the development lifecycle, from requirements gathering to implementation and deployment. • Navigate unfamiliar repositories, understand existing architectures, and identify opportunities for technical improvements. • Agentic Systems & AI-Assisted Development: • Introduce and scale production-ready agentic software engineering practices within existing enterprise codebases. • Leverage advanced Claude Code workflows to accelerate feature development, testing, refactoring, and debugging. • Configure AI agents, repository memory files, architectural context, sub-agents, custom skills, and development guardrails. • Design structured workflows for task decomposition, context management, automated verification, and code review. • Optimize repository structures and documentation to support reliable AI-assisted development. • Implement deterministic guardrails that maintain code quality, architectural consistency, and predictable AI-generated outputs. • Technical Enablement & Mentorship: • Mentor and upskill engineers through hands-on pairing, collaborative coding, and practical knowledge sharing. • Demonstrate the value of agentic development through real production work rather than theoretical recommendations. • Adapt coaching approaches and technical explanations to developers with different levels of AI-assisted development experience. • Help engineering teams incorporate new tools and workflows into their daily development practices. • Document reusable engineering patterns, technical decisions, and best practices to support broader adoption. • Technical Leadership & Consulting: • Work directly with client engineering teams to identify technical challenges and implement effective solutions. • Provide guidance on architecture, repository organization, development workflows, and engineering standards. • Collaborate with cross-functional Agile teams to deliver high-quality software aligned with business objectives. • Identify opportunities to improve development efficiency, software quality, and delivery performance. • Measure and demonstrate improvements in engineering productivity, development cycle time, and overall team capabilities. Requirements : The ideal candidate is a senior technical professional with extensive full-stack engineering experience and a strong background in AI-assisted software development. You should combine deep technical expertise with a practical understanding of agentic systems, excellent mentoring capabilities, and the ability to influence engineering teams through hands-on collaboration. • 10+ years of professional software engineering experience building and delivering complex enterprise applications. • Strong hands-on expertise in Java and Spring Boot, including backend services, APIs, and enterprise application development. • Advanced proficiency in TypeScript and React, including modern frontend architecture and build tools such as Vite. • At least 2 years of experience with agentic coding workflows, tool-augmented LLM programming, and AI-assisted development in production environments. • Advanced practical experience with Claude Code, including agent configuration, repository memory files, architectural context, sub-agents, custom skills, and development guardrails. • Proven experience integrating agentic development workflows into existing enterprise codebases to accelerate feature delivery, testing, and refactoring. • Strong understanding of repository architecture, code organization, automated testing, and technical documentation. • Experience designing structured engineering workflows involving task decomposition, context management, automated verification, and code review. • Ability to implement deterministic guardrails that ensure code quality, architectural consistency, and reliable AI-generated outputs. • Demonstrated experience mentoring and developing software engineers, particularly through hands-on pairing and collaborative development. • Ability to work directly with client engineering teams and adapt technical guidance to different experience levels. • Strong background working within Agile and cross-functional product teams, delivering production features from requirements thr