At NIO, we believe technology connects people and transforms the future. We are an innovative company focused on excellence, operating with a dynamic and collaborative culture. Our team works with autonomy, passion, and commitment, always striving for the best results. Join our team as a Senior Full-Stack Developer! We are looking for an experienced professional passionate about technology to develop robust and scalable solutions, focusing on high performance and usability. You will have the opportunity to collaborate directly with the business team, translating requirements into innovative technical solutions and ensuring code quality through automated testing and reviews. Your expertise will be essential to drive our projects and contribute to the company's success. **Responsibilities and duties** * Develop robust and scalable mobile solutions, ensuring high performance and usability. * Collaborate with the business team to understand requirements and propose technical solutions. * Ensure code quality through automated tests and code reviews. * Technically lead development projects, guiding the team and ensuring delivery of high-quality solutions. * Propose and implement continuous improvements in development processes and system architecture. **Requirements and qualifications** * Experience in development using one of the following technologies: Java, C, .NET. * Strong knowledge of tools and approaches for continuous integration and delivery, and automated testing. * Strong professional experience with JavaScript MVC frameworks (NodeJS, ReactJS, Bootstrap, etc.). * Ability to discuss system architecture in web and mobile solutions. * Expert-level experience in HTML5 / CSS and mobile development, responsive / adaptive applications (PhoneGap, Python, Objective\-C, etc.). * Experience in iOS (Objective\-C) and Android (Java) development. * Experience with cloud-oriented development and technologies (e.g., GCP, AWS, Azure). * Significant experience writing and using RESTful API services. * Experience with relational and non-relational databases (MongoDB, CouchDB, etc.). * Basic infrastructure knowledge: Servers, networks, Linux / Windows operating systems. * Knowledge of Redis, RabbitMQ tools. * Knowledge of testing tools: Karma, Selenium, Protector, Jasmine, Jest. * Familiarity with security standards such as TLS, SSL, OAuth, and OpenID. * Docker experience is a plus. * Bachelor’s degree in Computer Science, Software Engineering, or related fields. * Certifications in development or cloud technologies (desirable). **Additional information** Benefits: * Meal and/or food allowance * Transportation allowance * Medical insurance * Dental insurance * Life insurance * Private pension plan * Profit-sharing program (PPR) * Pharmacy subsidy * Childcare assistance * Flexible working hours * V.tal Benefits Club * Extended maternity leave (6 months) * Extended paternity leave (20 days) **THE FUTURE GOES THROUGH HERE AND IT'S WITH YOU THAT WE WILL BUILD IT** ---------------------------------------------------------------- **We are V.tal, a company born with the purpose of enabling connection to the digital world, transforming people's lives.** We work to help position Brazil at the top of the list of most digitally advanced countries, promoting digital inclusion, boosting new businesses, and stimulating regional development. This is possible because we were born with Brazil’s largest fiber-optic network and a team that makes things happen. We are a neutral network, shared with operators, providers, and partners of all sizes and regions. And this fills us with pride. This robustness allows us to offer broad coverage and reach, enabling our customers to go further while optimizing their investments. **OUR TEAM** We are connected, agile, and driven by outstanding results. Our work environment is light because it is made up of people who collaborate, trust each other, and celebrate every achievement. Here, we don’t make excuses—we find solutions. With this high-performance team, we work daily to place Brazil among the most digitally advanced nations, promoting digital inclusion and economic and social development. **CHECK OUT OUR CORE VALUES** **We play fair and trust each other.** **Continuous evolution and learning is our mantra. Without learning, there is no progress.** **We are obsessed with excellence and high performance. The pursuit of results happens daily in every decision.** **Work hard, play hard! We are focused and maintain a healthy environment.** **DO YOU IDENTIFY WITH OUR PROPOSAL? THEN COME BUILD THE FUTURE WITH US TODAY!** Know that internet that just works? That connects you to what truly matters, without unpleasant surprises? We know the telecommunications market needs to change. And we’re here to make it happen. We are **Nio**, a technology company offering fiber internet solutions for homes and businesses across Brazil. Already **around 4 million customers** connected—and this is just the beginning. **Why does Nio exist?** **Our mission:** Accelerate the evolution of people and businesses through technology. **Our essence:** We care about people. And we look forward. Because we believe innovation only makes sense when it improves people's lives. And this applies not only to our customers but also to those who make it all happen: **the people who work here.** **Working at Nio means…** Being part of a company that puts the customer at the center of everything. Having autonomy and space to grow. Working with people who believe in what they do. Building something new in a collaborative and energetic environment. **We're just getting started, and you can be part of this transformation. Come to Nio and help create Brazil’s new digital era!**