Technical Lead/Full-Stack Engineer

Casado; Brazil; On-site; BRL 350,000 - 550,000; Full time

Job summary

Casado is seeking a Lead Full-Stack .NET Engineer to design, develop, and maintain robust features for our healthcare SaaS platform. You will lead a technical team, shape architecture, and deliver scalable backend with C#/.NET and REST APIs, while also delivering responsive frontend with React.js.

Ideal candidates have 8+ years of software development, strong leadership, and experience building high-load systems.

Qualifications

• 8+ years of professional software development experience.
• Experience leading technical teams (15+ people).
• C#/.NET 10+ years with strong backend focus.
• Experience building high-load applications.
• Experience in designing and building REST APIs.
• Proficient in PostgreSQL and database schema design.
• Testing automation culture and experience in writing unit and integration tests.
• Frontend experience with React.js.
• Upper-intermediate English level.

Responsibilities

• Design, build, and maintain efficient, reusable, and reliable code.
• Design APIs and build integrations.
• Drive engineering from concept to finished product.
• Contributions to architectural decisions.

Skills

Lead technical teams

Backend development

REST API design

Unit & integration tests

Frontend experience (React.js)

English communication

Tools

C# /.NET

PostgreSQL

AWS (nice to have)

Job description

Own your future Our culture isn’t something people join, it’s something they build and shape. We believe that every person deserves to be heard and empowered. If you’re on the fence about whether you’re a fit, we say go for it. Let’s build something great together. We are seeking a Lead Full-Stack .NET Engineer with hands-on experience in designing, developing, and maintaining robust and user-friendly feature enhancements and products. Our client is a US-based company, a recognized leader in the healthcare domain offering SaaS-based solutions. The product portfolio addresses all the digital needs around running clinical trials.

Key responsibilities

Design, build, and maintain efficient, reusable, and reliable code Design APIs and build integrations Drive engineering from concept to finished product Contributions to architectural decisions

Must haves

8+ years of professional experience in software development. Experience leading technical teams (15+ people). C#/.NET 10 experience with a strong focus on backend & databases. Experience building high-load applications. Experience in designing and building REST APIs. Proficient in PostgreSQL and database schema design. Testing automation culture and experience in writing unit and integration tests. Frontend / React.JS experience. Upper-intermediate English level.

Nice to have

DevOps practices, CI/CD, and experience with Amazon Web Services (AWS). Experience in data-intensive architectures, ETL, and building data pipelines.