**What are we looking for?** **Main responsibilities:** Define best development practices; Develop, code, and test systems in the language, moving between Front\-End and Back\-End development projects; Implement complex functionalities; Propose technological improvements to systems. Monitor adherence to best system development practices. Validate the existing testing coverage in projects; Validate new application features; Monitor application system performance; Propose technological improvements to systems; Anticipate opportunities and problems, acting quickly and effectively by developing preventive solutions; Support junior developers and contribute to project decision\-making; Perform system maintenance, implementing necessary changes to meet user requirements; Carry out program assembly, debugging, and testing tasks, providing maintenance services for already\-developed programs. **Requirements:** * Experience with the .NET platform and the C\# language; * Experience in backend application development; * Knowledge of the REST standard and experience building APIs; * Relational and non\-relational databases; * Automated testing; * Experience with Git and its workflows; * Experience with agile methodologies. **Preferred qualifications:** * Experience with cloud applications (AWS); * Use of messaging in asynchronous solutions (RabbitMQ, SQS, SNS); * Containers (Docker, Kubernetes); * Familiarity with or experience in microservices architecture; * Experience with: PostgreSQL, SQL Server, Redis, RavenDB, ElasticSearch, Kibana, Datadog, Hangfire, RabbitMQ, and NHibernate; * Knowledge of architectural patterns and design patterns (design patterns, architectural styles, SOLID, clean code); * Experience using an API Manager; * Experience with integrations; * Experience in the financial market or fintech industry. **Work location: Remote.** **Why build your career at Meta?** We offer autonomy, clear goals, and a dynamic, challenging environment where professionals have the opportunity to work with diverse technologies, participate in all types of projects, bring new ideas, and work from anywhere in Brazil—and why not?—from anywhere in the world. Additionally, we are one of the best companies to work for in Brazil according to Great Place to Work, and one of the 10 fastest\-growing companies in the country for three consecutive years, according to the Informática Hoje Yearbook. **What are our values?** * We are people serving people * We think and act like owners * We are driven by performance * We grow and learn together * We pursue excellence and simplicity * Innovation and creativity are in our DNA All individuals are welcome, regardless of their condition, disability, ethnicity, religious belief, sexual orientation, appearance, age, or related factors. We want you to grow with us in a welcoming environment full of opportunities. Do you identify with this? Then, \#JoinMeta!