Senior FullStack Engineer, C#/React

Truelogic Software

Senior Full Stack Software Engineer developing and enhancing cloud-native SaaS applications for a leading client. Involves C#/React, AWS, and collaboration with cross-functional teams.

Posted 6/11/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsDockerDynamoDBMicroservicesMongoDB.NETNoSQLPostgresReactSQLTerraform

About the role

Key responsibilities & impact

Design, develop, and maintain cloud-native SaaS applications.
Build and enhance backend services using C# and .NET Core.
Develop modern frontend applications using React.
Design, implement, and maintain RESTful APIs and microservices.
Work with SQL and NoSQL databases to support application functionality and scalability.
Implement, optimize, and maintain AWS-based cloud infrastructure.
Collaborate with Product, QA, DevOps, and Engineering teams to deliver high-quality solutions.
Participate in architectural discussions and technical decision-making.
Mentor junior engineers and promote engineering best practices.
Maintain code quality through testing, code reviews, and continuous improvement.
Improve system performance, scalability, reliability, and operational efficiency.
Support modernization initiatives and cloud-native architecture adoption.

Requirements

What you’ll need

5+ years of professional software engineering experience.
Strong experience with C# and .NET Core.
Strong experience with React.
Experience designing and developing RESTful APIs.
Experience building and maintaining microservices-based architectures.
Hands-on experience with AWS cloud services.
Strong knowledge of SQL databases such as PostgreSQL or SQL Server.
Experience with NoSQL databases such as MongoDB or DynamoDB.
Experience working with Docker and CI/CD pipelines.
Experience building and supporting SaaS products.
Experience working with multi-tenant architectures.
Strong understanding of software design, scalability, and performance optimization.
Excellent collaboration and communication skills.
Experience with Terraform and Infrastructure as Code.
Experience building serverless applications using AWS Lambda.
Knowledge of event-driven architectures and message queue systems.
Experience with DevOps tooling and cloud automation.
Experience designing and supporting scalable distributed systems.
Experience optimizing application performance and reliability at scale.
Technical mentoring or engineering leadership experience.
Experience working on large-scale SaaS platforms.

Benefits

Comp & perks

100% Remote Work: Enjoy the freedom to work from the location that helps you thrive. All it takes is a laptop and a reliable internet connection.
Highly Competitive USD Pay: Earn an excellent, market-leading compensation in USD, that goes beyond typical market offerings.
Paid Time Off: We value your well-being. Our paid time off policies ensure you have the chance to unwind and recharge when needed.
Work with Autonomy: Enjoy the freedom to manage your time as long as the work gets done. Focus on results, not the clock.
Work with Top American Companies: Grow your expertise working on innovative, high-impact projects with Industry-Leading U.S. Companies.

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

C#.NET CoreReactRESTful APIsmicroservicesAWSSQLNoSQLDockerCI/CD

Soft Skills

collaborationcommunicationmentoringtechnical decision-makingcode qualitycontinuous improvementengineering best practicesproblem-solvingleadershipinterpersonal skills