Fullstack Developer – Senior

FCamara Consulting & Training

Senior Fullstack Developer helping design scalable applications in a high complexity fintech project. Working with modern cloud architecture and advanced frameworks.

Posted 5/11/2026full-timeRemote • BrasilSeniorWebsite

Tech Stack

Tools & technologies

ASP.NETAWSDockerEC2Entity FrameworkJest.NETPostgresRabbitMQReactSQL

About the role

Key responsibilities & impact

Design and implement robust, scalable RESTful APIs using .NET, following architectural and design patterns
Develop modern user interfaces with React, ensuring responsiveness, performance, and good UX practices
Work with PostgreSQL, designing optimized schemas and ensuring data integrity
Design solutions on AWS, using services such as EC2, RDS, S3, Lambda and others as needed
Implement and orchestrate workflows using N8N to automate critical business processes
Architect messaging solutions with RabbitMQ for asynchronous communication and high availability
Containerize applications using Docker, ensuring consistency across environments
Implement comprehensive test coverage, including unit tests with Stryker.Net for mutation analysis
Actively participate in code versioning with Git, conduct code reviews, and ensure code quality
Work in a Scrum environment, participating in planning, daily standups, retrospectives and sprints
Mentor junior and mid-level developers, sharing knowledge on architecture, patterns and best practices
Collaborate with architects, product managers and stakeholders to ensure technical and business alignment

Requirements

What you’ll need

Degree in Computer Science, Software Engineering or equivalent
Minimum 6–8 years of experience in fullstack development
Strong experience with .NET (C#, ASP.NET Core, LINQ, Entity Framework or similar)
Deep experience with React, including mastery of hooks, Context API, state management, and performance optimization
Advanced knowledge of SQL and PostgreSQL, including query optimization
Experience with AWS (EC2, RDS, S3, Lambda, CloudFront or similar)
Experience with Docker and containerization
Knowledge of design principles and patterns (SOLID, Design Patterns, Clean Code)
Experience with RabbitMQ or other messaging solutions
Experience with unit testing (xUnit, NUnit for .NET; Jest, React Testing Library for React)
Proficiency in Git and best practices for version control
Proven experience with agile methodologies (Scrum, Kanban)
Ability to architect scalable, high-performance solutions
Excellent communication and collaboration skills
Strong portfolio or GitHub repository with examples of fullstack projects

Benefits

Comp & perks

35-hour workweek 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score

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Hard Skills & Tools

.NETC#ASP.NET CoreLINQEntity FrameworkReactPostgreSQLSQLDockerRabbitMQ

Soft Skills

communicationcollaborationmentoringcode reviewagile methodologiesproblem-solvingleadershipplanningresponsivenessperformance optimization

Certifications

Degree in Computer ScienceDegree in Software Engineering