Fullstack jobs in Brazil

We are seeking a full-time, remote Senior Full Stack Software Engineer with 5+ years of software development experience and a strong background in JavaScript frameworks and libraries, including Node.js, to join our U.S. client's engineering team. Working closely with product stakeholders, you will play a vital role in developing an industry-leading product.

The client is focused on AI-first development, so a significant part of your role will involve designing and implementing AI-driven features using AI-first development techniques. This includes leveraging prompt engineering to optimize the client's AI models and utilizing cutting-edge tools, such as Cursor and Copilot, to enable more innovative development.

As a Senior Full Stack Software Engineer, your role is to collaborate with product teams to create, publish, and develop high-quality software. You’ll make software that facilitates veterinarian-patient communication and reduces the burden on clinic staff! You must see the big picture of where the client is going and fill in the gaps. Do you actively integrate AI tools and techniques into your daily engineering workflow? Do you support thoughtful discussions and challenge existing ideas? Share what you know, learn what you don\'t.

Our client is on a mission to provide technology and services that enable veterinary practices to provide the highest quality of care to pet owners. The company is a well-funded, growth-stage company comprising individuals who thrive in a fast-paced, passionate, and entrepreneurial environment. Our client has thousands (and counting) of veterinarians within its customer base today.

• Collaborate with cross-functional teams to define, design, and ship new applications and features
• Build and enhance advanced applications utilizing your JavaScript stack skills
• Design and implement AI-first features using LLMs (e.g., OpenAI, Claude)
• Integrate and leverage AI development tools like Cursor and Copilot
• Provide estimates for features, bug fixes, upgrades, and new projects
• Participate in clearly and concisely documenting applications and custom-built frameworks
• Write automated unit and feature tests enabling continuous delivery of your great work
• Continuously discover, evaluate, and implement new technologies (especially AI-related) to maximize development efficiency
• Support other teammates through good communication and feedback during code reviews
• See the big picture and support the client\'s mission of facilitating better pet care

• Excellent English communication and interpersonal skills
• 5+ years of full stack engineering experience working on consumer-facing (B2C or B2B), high-volume, commercial software products and services
• 3+ years of JavaScript framework / library or Node.js, Express, and TypeScript (bonus) experience
• Proven expertise in prompt engineering for various AI models
• Regular use of AI tools like Copilot, Cursor, or others to streamline development is preferred
• A curiosity to explore how you can improve your workflow using AI
• Experience with object-oriented programming patterns
• Experience with scaling and performance improvement
• Knowledge of both relational and non-relational database systems (e.g., PostgreSQL, MySQL, DynamoDB)
• High execution mindset while balancing the risk vs costs vs timeline
• Proven history of delivering production-ready applications promptly
• Experience creating and consuming API\'s (preferably with GraphQL)
• Familiarity with AWS cloud services (server setup a bonus)
• Team player eager to learn from and mentor others
• Proven delivery experience in a vibrant, dynamic startup environment
• A collaborative approach, a can-do attitude, and a relentless pursuit to attain goals and solve problems
• Trustworthy, team-oriented, and transparent

• University degree or relevant industry experience (optimally a technical or engineering degree)
• Strong experience with AI-first development methodologies

• Know that your ideas are heard and matter — think big!
• Own your job and be recognized for your contributions
• Work with smart, creative people
• Making mistakes is human. Let’s learn from them and be transparent!
• Be recognized as an individual — no presumptions or judgment. Be the extraordinary you!
• 15 days Paid Time Off (PTO), one floating day, three sick days, and designated national holidays
• Start : ASAP