* Knowledge of SQL language; * Knowledge of LSON syntax; * SQL Server, MySQL and SQLite databases; * TCP/IPv4 networks; * Serial communication (RS232) Preferred qualifications: * Knowledge of Android development (FireMonkey RAD Studio) * C# * ModBus Note: Position requires working at the company's headquarters. Job type: Full-time CLT, Freelance / PJ Compensation: R$5.000,00 per month Benefits: * Free parking * Meal voucher * Transportation voucher Experience: * 2 years (Mandatory) Availability for travel: * 25% (Mandatory)