Mid-Level or Senior Full-Stack .NET + React Developer

Full Stack .NET + React Developer

About the role

Nava is looking for a Full Stack .NET + React Developer, Mid or Senior level, to work on robust technology projects, with a focus on scalability, performance, and system integration.

In this role, you will have the challenge of developing, evolving, and maintaining web applications, contributing to secure, scalable, and high-impact business solutions.

Key responsibilities

In this role, you will be responsible for:

• Developing, evolving, and maintaining web applications using .NET, C#, and React with JavaScript

• Developing and integrating REST and SOAP APIs

• Working on integration between systems and services

• Working with relational and non-relational databases

• Contributing to application security using OAuth, JWT, and SSL/TLS

• Working in microservices-based architectures and AWS environments

• Contributing to technical decisions, development best practices, and continuous improvement

• Collaborating with developers, technical leadership, product, and other areas involved in the project

Requirements

For this opportunity, it is important that you have:

• Solid experience with .NET and C# development

• Solid experience with React and JavaScript

• Experience integrating REST and SOAP APIs

• Knowledge of relational databases, such as MySQL and PostgreSQL, and non-relational databases

• Knowledge of security and authentication protocols, such as OAuth, JWT, and SSL/TLS

• Experience with AWS and cloud environments

• Knowledge or experience with microservices architectures

• Strong analytical skills, collaboration, and autonomy

Preferred qualifications

It will be a plus if you have:

• Experience in payment methods and/or financial institutions, especially in investments

• Experience with high-complexity projects and high transaction volumes

• Knowledge of application architecture and scalability practices

Work model

Model: Hybrid

Work location: Faria Lima, São Paulo/SP

Benefits

At Nava, we offer a benefits package designed to support different moments of life and the professional journey:

• Meal/food voucher

• Transportation voucher or shuttle, depending on eligibility and work model

• Multi-benefit card

• Medical and dental insurance

• Life insurance

• Wellhub

• Childcare assistance, according to current policy

• Personal assistance

• Pharmacy card

• Partnerships with discounts in education, services, culture, and leisure

About Nava

We work at the core of leading companies in their segments, where technology, strategy, and operations meet. We design architectures, structure governance, and transform complexity into clarity, creating solutions that continuously drive growth, efficiency, and competitiveness.

With around 2,000 specialists, Nava connects creative thinking, advanced engineering, and GenAI-powered technology to accelerate business results. We operate in data, cybersecurity, cloud, observability, infrastructure, application modernization, and creative innovation, serving as the link that keeps technology and business moving in the same direction.

Our ecosystem expands this capability through GH Brandtech, which combines brand strategy, experience, design, and digital products; Ventura, a reference in cybersecurity, incident response, and crisis management; and ®CS Global IT, specialized in Cloud, Multicloud, and Data Center. Together, they strengthen our ability to deliver scalable solutions that drive innovation, sustainable growth, and competitive advantage.