Pessoa Desenvolvedora Fullstack Sr - Next.Js/Nestjs

Lever, Inc.; Brasília; Remote; BRL 300,000 - 420,000; Full time

Benefits offered by this job

Meal and food allowance

Health insurance

Dental insurance

Home office allowance

Profit Sharing / PLR

Setup Kit voucher

Life insurance

Birthday day off

Go Good and Conexa benefits

Health and wellbeing programs

Partnerships and discounts

Opportunity to work with SaaS products

Job summary

Lever, Inc. on behalf of a partner company is seeking a Pessoa Desenvolvedora Fullstack Sr – Next.js/NestJS, fully remote across Brazil. You will build SaaS solutions spanning frontend, backend, middleware, and core product layers, combining strong engineering with product thinking.

Expect AI-assisted development and ownership of architecture, quality, security, and performance. You will work with React frontend, Next.js BFF on Vercel, Node.js/NestJS middleware, and Java core, while

Qualifications

• Senior fullstack engineer with strong TypeScript expertise.
• Solid experience with React and Next.js on the frontend.
• Strong Node.js experience, with NestJS or similar backend framework.
• Experience across multiple layers and integrating frontend, backend, middleware, and core systems.
• Practical experience with AI-agent-driven development using AI tools.

Responsibilities

• Understand user and business problems; define best solution before development.
• Write clear technical specs and implementation plans before coding.
• Lead AI-assisted implementation and review architecture, testing, security, and performance.
• Own delivery across the tech stack: React frontend, Next.js BFF on Vercel, Node.js/NestJS, and Java core.
• Monitor deployed solutions via logs, metrics, and user impact.
• Develop AI capabilities into production, including extraction, classification, and summarization.
• Evolve AI development framework with docs, rules, and automated evaluations.
• Collaborate with users and stakeholders to drive end-to-end delivery.

Skills

TypeScript

React

Next.js

Node.js

NestJS

AI agents

Software architecture

Code reviews

Tools

Next.js

NestJS

Claude Code

Cursor

Codex

Windsurf

Job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Pessoa Desenvolvedora Fullstack Sr – Next.js/Nest JS based in Brazil.
This senior fullstack role focuses on building Saa S solutions that turn complex business challenges into practical digital products. You will work across frontend, backend, middleware, and core product layers, contributing to solutions from problem definition through production. The position combines strong engineering skills with product thinking, requiring you to understand user needs and challenge assumptions before implementation. You will use AI-assisted development as a core part of your workflow, orchestrating agents while maintaining ownership of architecture, quality, security, and performance. You will also help bring AI-powered capabilities into production and measure their real-world impact. The role offers significant autonomy, close collaboration with product and design, and an environment centered on continuous learning and innovation. This is a fully remote opportunity open to professionals across Brazil.

Accountabilities

• 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/Nest JS 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 Type Script expertise, high autonomy, excellent technical judgment, and practical experience using AI agents as part of the development process.
• Solid fullstack development experience with Type Script.
• Strong experience with React and Next.js on the frontend.
• Strong Node.js experience, with Nest JS 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.
• Go Good and Conexa benefits.
• Health and wellbeing programs.
• Partnerships and discounts.
• Opportunity to work with Saa S 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.