Develop and maintain fullstack applications in DELPHI, with emphasis on POS (Point of Sale) modules.
Implement and optimize integrations with webservices for issuing fiscal receipts (NFC-e), ensuring compliance with tax regulations (SEFAZ, municipal authorities).
Perform corrective and evolutionary maintenance on legacy systems, including bug fixes and performance improvements.
Collaborate with product and support teams to map tax requirements and test integrations in real-world scenarios.
Develop APIs and middleware to enable communication between legacy systems and modern platforms (e.g., .NET, Node.js, or Java).
Ensure security and resilience in integrations (digital certificates, XML/JSON, authentication, retry mechanisms).
Participate in code reviews, refactorings, and technical documentation to facilitate knowledge transfer.
Support deployment and production monitoring, with a focus on fiscal stability (preventing invoice rejections).

Proven experience (minimum 5 years) in DELPHI for developing desktop and POS applications.
Advanced knowledge in issuing fiscal receipts (NFC-e/SAT) and NF-e.
Extensive experience integrating with webservices (SOAP/REST, XML/JSON, A1 certificates).
Strong SQL skills (optimized queries, stored procedures) for databases such as SQL Server.
Familiarity with fiscal tools (e.g., ACBr, NFePHP) and Brazilian tax compliance.
Technical English for reading documentation.
Experience migrating legacy systems to .NET Core or modern frameworks (desirable).
Frontend knowledge (HTML/CSS/JS or React/Vue) for POS interfaces (desirable).
Exposure to cloud (Azure/AWS) and DevOps (CI/CD, Docker) (desirable).
Fiscal certifications or experience in SAT/SEFAZ audits (desirable).

Senior Fullstack Developer, Delphi

Key skills