Backend Developer

Description

Job Summary: Backend Development professional to work on the development and maintenance of APIs and services, actively contributing to design and product in an agile environment. Key Highlights: 1. Develop and maintain robust and scalable APIs and services. 2. Actively collaborate on the company's design and product. 3. Work with modern and scalable technologies in an agile environment. Next Fit is the software transforming the fitness industry in Brazil! With consistent growth, over 14,000 customers, and a team of more than 215 employees, we are experiencing rapid expansion full of opportunities. If you have a solid foundation in Backend Development, experience in agile environments, and are eager to grow professionally, we’d love to meet you! **What will be your mission?** * Develop and maintain robust, scalable, and high-performance backend APIs and services. * Actively contribute to design and product by providing insights and improvements to adopted technologies and practices. * Collaborate with the DevOps team to enhance CI/CD processes and improve development pipeline efficiency. * Analyze and resolve performance and scalability issues in backend applications. * Work closely with the frontend team to ensure seamless integration between user interfaces and the backend. * Actively participate in technical discussions and decisions with other developers. * Write high-quality code, adhering to best programming practices. * Build and maintain robust and scalable applications supporting continuous growth in cloud environments. **Desired Technologies and Knowledge** We seek someone with solid backend development experience who has worked with modern and scalable technologies. Our current tech stack includes: * Languages and frameworks: C#, .NET Core 6 and 8, .NET Framework * Messaging and databases: RabbitMQ, Redis, PostgreSQL, and MongoDB * Infrastructure and DevOps: Azure DevOps, Docker, Kubernetes, ArgoCD, Rancher, CI/CD, and AWS * Monitoring and observability: AppInsights and Grafana * Frontend (occasional interaction): AngularJS, React, and React Native **Nice-to-have qualifications:** * Experience in SaaS B2B environments. * Frontend knowledge with AngularJS, React, and React Native. * Experience with container automation and orchestration tools and processes. * Ability to solve complex problems and improve system scalability. **Don’t miss this opportunity! Take the next step toward career success and join the legion of roxinhos!** **Responsibilities and Duties** **Requirements and Qualifications** **Additional Information** **Benefits:** * Meal Allowance (R$750.00) * Health Insurance * Transportation Allowance * Gympass * Fruit Day * Birthday Day Off * Career Development Plan. Next Fit is a technology company headquartered in Criciúma, Santa Catarina. For six years, we’ve been driven by the purpose of supporting fitness and sports business managers in their mission to make our country healthier and transform lives through sport. Today, we are the **#1 technology provider for fitness and sports businesses in Brazil**. Our ecosystem connects every stage of the journey: from enrollment at the front desk to training accessed via mobile, from automated payments to reports guiding the business’s next steps. Over 15,000 businesses and 1 million students experience this daily. #### **WHAT IT MEANS TO BE A ROXINHO** Next Fit’s rapid growth stems from a legion that transforms ideas into technology, challenges into solutions, and goals into achievements. We affectionately call these people **roxinhos**. Here, learning and improvement are not optional. Our pace is fast, our standards are high, and knowledge sharing is part of everyday life. If this environment doesn’t resonate with you, it’s best to stop here. But if it makes your eyes light up, you may well be in the right place. Being a roxinho means having autonomy to create, responsibility to deliver, and pride in seeing your work impact thousands of businesses and millions of students.