Backend Developer

Description

Job Summary: Develop and maintain robust, scalable backend APIs and services, collaborate on product design, and enhance CI/CD processes for high-performance applications. Key Highlights: 1. Opportunity for professional growth in an agile and rapidly expanding environment. 2. Actively collaborate on product and design, providing insights and improvements. 3. Work with modern, scalable cloud-based technologies. 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 filled with 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, high-performance backend APIs and services. * Actively contribute to product and design, offering 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 decision-making with other developers. * Write high-quality code, adhering to best programming practices. * Build and maintain robust, scalable applications supporting continuous growth in cloud environments. **Desired Technologies and Skills** We seek someone with solid backend development experience and hands-on work with modern, 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 B2B SaaS environments. * Knowledge of frontend technologies such as 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** **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 empowering fitness and sports business managers to help make our country healthier and transform lives through sports. Today, we are the **#1 technology provider for fitness and sports businesses in Brazil**. Our ecosystem connects every stage of the customer journey: from enrollment at the front desk to workout access via mobile phone, 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** If Next Fit has grown so much in such a short time, it’s because there’s a legion turning 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, perhaps it’s best to stop here. But if this makes your eyes light up, you may just 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.