Mid/Senior Back-end Developer

Next Fit

Backend Developer responsible for maintaining and developing scalable APIs for the fitness software company. Collaborating with teams for CI/CD processes and integrating with frontend technologies.

Posted 4/12/2026full-timeCriciúma • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies

AngularAWSAzureDockerGrafanaKubernetesMongoDB.NETPostgresRabbitMQReactReact NativeRedis

About the role

Key responsibilities & impact

Develop and maintain robust, scalable, high-performance backend APIs and services.
Contribute to product and design with insights and improvements.
Collaborate with the DevOps team to improve CI/CD processes.
Analyze and resolve performance and scalability issues.
Work with the frontend team for smooth integration.
Participate in technical decisions and discussions.
Write high-quality code following best practices.
Maintain robust and scalable applications.

Requirements

What you’ll need

Solid experience in backend development
Modern, scalable techniques
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

Benefits

Comp & perks

Meal allowance (R$750.00)
Transportation voucher
Health insurance
Gympass (Wellhub)
Birthday day off
Fruit Day
Break and games room
Education platform
On-site library

ATS Keywords

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Hard Skills & Tools

backend developmentC#.NET Core 6.NET Core 8.NET FrameworkRabbitMQRedisPostgreSQLMongoDBCI/CD

Soft Skills

collaborationcommunicationproblem-solvingtechnical decision-making