Pessoa Desenvolvedora Fullstack Sr – Next.js/NestJS

Accountabilities:: The role combines end-to-end software development with technical ownership, product collaboration, and AI-assisted engineering practices. Understand the underlying problems faced by users and business teams, challenge assumptions, and collaborate with product and design to define the best solution before development. Create clear technical specifications and implementation plans before writing code, using documentation as a primary engineering tool. Lead AI-assisted implementation by preparing context, orchestrating development agents, correcting direction when needed, and critically reviewing architecture, testing, security, and performance. Take ownership of delivery across the technical stack, including React frontend, Next.js BFF on Vercel, Node.js/NestJS CQRS middleware, and the Java product core. Monitor solutions after deployment through real-world usage, logs, metrics, and user impact, considering work complete only when supported by evidence. Develop and bring AI capabilities into production, including legal document extraction, classification, and summarization. Monitor and evaluate the quality of AI-generated results over time. Evolve the team's AI development framework, including skills, rules, living documentation, and automated evaluations. Collaborate directly with users and business stakeholders to drive solutions from problem definition through delivery. Requirements The ideal candidate is a senior fullstack engineer with strong TypeScript expertise, high autonomy, excellent technical judgment, and practical experience using AI agents as part of the development process. Solid fullstack development experience with TypeScript. Strong experience with React and Next.js on the frontend. Strong Node.js experience, with NestJS or an equivalent backend framework. Experience working across multiple application layers and integrating frontend, backend, middleware, and core systems. Practical experience with AI-agent-driven software development using tools such as Claude Code, Cursor, Codex, Windsurf, or similar platforms. Ability to build context, write specifications, guide development agents, and correct their direction rather than relying only on AI autocomplete. Proven ability to independently lead deliveries and work directly with users or business areas. Excellent written communication, particularly for technical specifications, implementation plans, and code reviews. Senior-level ability to critically review code written by others, identifying subtle defects, security vulnerabilities, performance bottlenecks, and ineffective tests. Strong sense of ownership, autonomy, and technical responsibility. Ability to evaluate architecture, testing, security, and performance with sound technical judgment. Experience with AI-powered product capabilities is valuable, particularly extraction, classification, or summarization workflows. Benefits Fully remote work model, available throughout Brazil. Meal and food allowance. Health insurance. Dental insurance. Home office allowance. Profit Sharing / PLR. Setup Kit voucher. Life insurance. Birthday day off. GoGood and Conexa benefits. Health and wellbeing programs. Partnerships and discounts. Opportunity to work with SaaS products and modern technology solutions. Exposure to AI-first development practices and AI-powered product capabilities. Collaborative environment focused on autonomy, continuous learning, innovation, and meaningful product impact. Inclusive workplace that welcomes candidates from diverse backgrounds.