Fullstack Engineer

LoopStudio

Location: Uruguay
Job Type: full-time
Salary: Unknown
Posted: July 4, 2025

Job Description

We are currently seeking a skilled Fullstack Software Engineer with at least +3 years of work experience in React and Node.js.

You will be working on challenging and innovative long-term projects in a growing team with room for learning and career development. We expect candidates with outstanding analytical skills and a keen desire to learn and apply new technologies.

Commited to

Drive MVP Development: Utilize your full stack expertise and skills in requirements analysis to transform client ideas into Minimum Viable Products (MVPs) within Design Sprint frameworks.

End-to-End Involvement: Play a key role in the team, covering all aspects of MVP development—from requirements gathering and architectural planning to coding, testing, and deployment.

Code Quality: Contribute clean, high-quality code while actively participating in code review processes to maintain codebase excellence.

Collaboration and teamwork: work well with others, sharing knowledge and expertise while collaborating with the team on multiple projects to ensure successful project delivery.

Skill Enhancement: Participate in our Councils, our educational spaces to continuously improve and share knowledge.

Requeriments

Must have

Fullstack experience: +3 year of full stack experience
React: +2 year working with React.js or Next.js
Backend: +1 years working Node.js
Architecture: Proven capability in designing scalable, maintainable architectures. Familiarity with key design patterns is a plus.
Database Management: Strong understanding of database design and optimisation, both relational and non relational
Version Control: Experience with Git, Gitflow and code reviews
Testing: Knowledge of unit and integration testing to ensure code reliability.
API Development: Skilled in developing RESTful APIs for frontend and backend integration.
Advanced English Level.

Nice to have

Typescript
Docker Understanding of containers and hands-on experience is a plus.
Frameworks: Experience with any other relevant framework such as Angular, Vue, and other languages like Java and Python.
DevOps: Experience deploying software, CI/CD pipelines, and familiarity with cloud services like AWS, Azure, or Google Cloud.

Soft Skills

Proactivity: You should take initiative in requirement analysis and clarification, seeking to understand and prioritize needs proactively. While the role demands self-drive, you will have the support and collaboration of your team.
Team Collaboration: Ability to excel in a team environment, whether you’re mentoring junior staff or learning from more experienced members.
Communication: Strong English written and verbal communication skills are essential for effective teamwork and client interactions.
Continuous Learning: An eagerness to stay updated with emerging technologies and methodologies, as evidenced by your participation in Node Councils and other learning initiatives.

🎯 Who is this job for?

This role is ideal for a Middle to Senior Fullstack Developer with at least 3 years of hands-on experience in React and Node.js. Candidates should be skilled in API development, architecture design, and database optimization, and familiar with Git workflows, testing practices, and MVP delivery. Ideal applicants are proactive, collaborative, and fluent in English, with a passion for continuous learning and growth.

💬 Potential Interview Questions

What is the difference between useEffect and useLayoutEffect in React?
useEffect runs after the render is committed to the screen, while useLayoutEffect runs synchronously after all DOM mutations but before the browser has a chance to paint, useful for measuring layout.
How do you manage state across a large React application?
State can be managed using Context API for global state or libraries like Redux/Zustand for more complex scenarios; React Query can be used for server state.
Explain the event loop in Node.js.
The event loop is a single-threaded mechanism in Node.js that handles asynchronous operations using callbacks, promises, and I/O events in phases like timers, I/O callbacks, and idle/prepare.
How do you structure a RESTful API using Express.js?
Organize routes by resource, use HTTP methods semantically, implement controllers for business logic, and ensure modular middleware for validation and authentication.
What are key differences between SQL and NoSQL databases?
SQL databases are relational, use structured schemas, and support ACID transactions; NoSQL databases are schema-less, scalable, and ideal for unstructured or rapidly changing data.
How do you ensure your Node.js backend is scalable?
Implement clustering, use asynchronous non-blocking code, adopt microservices when needed, and manage resources with tools like PM2 and load balancers.
What are some best practices for code reviews?
Ensure readability, validate logic correctness, check for adherence to standards, suggest improvements, and focus on knowledge sharing over criticism.
How would you implement CI/CD for a fullstack app?
Use tools like GitHub Actions or GitLab CI to automate tests, linting, builds, and deployments; containerize the app with Docker and deploy to services like AWS/GCP.
How do you handle API errors in frontend and backend?
Use consistent error handling with try/catch and proper HTTP status codes on the backend, and show user-friendly messages or fallback UI on the frontend.
What are benefits of using TypeScript in a fullstack application?
TypeScript provides static typing, reduces runtime errors, enhances IDE support, and improves collaboration by making code more predictable and self-documented.

📋 Job Summary

Join a dynamic team as a Fullstack Software Engineer and help build innovative MVPs using React (or Next.js) and Node.js. You'll be involved in end-to-end product development, from architecture to deployment, working with modern tools like Git, RESTful APIs, and both SQL and NoSQL databases. This remote role offers room for career growth, continuous learning through internal Councils, and collaboration on impactful long-term projects. Ideal for proactive engineers with strong communication skills and a passion for scalable, high-quality code. Advanced English and 3+ years of fullstack experience required.