**Job Description:** We are looking for a professional with solid experience in Mastersaf DFe, to work as a Consultant, supporting implementation, maintenance, and improvement projects of electronic tax solutions. The ideal candidate must have technical and tax knowledge, acting analytically and collaboratively with IT and Tax departments, ensuring compliance and efficiency in Electronic Fiscal Document (DFe) processes. **Responsibilities:** * Implement, maintain, and provide support for Mastersaf DFe solutions; * Analyze and resolve incidents related to the issuance and receipt of electronic fiscal documents (NF\-e, CT\-e, MDF\-e, NFS\-e, among others); * Support teams and clients in integrating ERP systems with Mastersaf DFe; * Perform validation of XML layouts, schemas, and communication with SEFAZ; * Monitor current tax and technical updates; * Prepare technical and functional documentation; * Participate in continuous improvement and automation projects for tax processes. **Technical Requirements:** * Professional experience with databases (queries, data analysis, and manipulation); * Knowledge of tax processes and DFe; * Solid experience with Mastersaf DFe, with proven track record using the tool; * Strong analytical skills and technical communication ability. **Preferred Qualifications:** * Experience analyzing and developing interfaces in Mastersaf DFe; * Experience with customizations and configurations in the Mastersaf DFe solution; * Knowledge of integrations with ERPs (SAP, TOTVS, Oracle, etc.); * Understanding of SQL databases and WebServices (SOAP/REST); * Experience in tax projects and tax consulting; * Fluent English. Location: Hybrid Working Hours: Business hours Contract Type: PJ Compensation: Fixed rate (to be discussed)