Senior Software Engineer – POS & Cash Systems Compliance (Portugal)Location: Remote (Portugal-based)Contract Type: Full-timeLanguage Requirements: English (B2 minimum), Portuguese (native)About the RoleOur client, a European leader in fiscal middleware and POS system compliance, is seeking a Senior Software Engineer to join their growing team in Portugal.
This role is ideal for someone with strong technical expertise in C#/.
NET, a passion for building scalable solutions, and experience working directly with clients in the retail or hospitality sectors, particularly around cash register systems and POS integration.You will contribute to the development of software that ensures compliance with the Portuguese fiscal laws, including SAF-T and standards compliant to the Autoridade Tributaria.
Key ResponsibilitiesDesign, develop, and maintain .
NET-based middleware and POS/cash system integration solutions.Collaborate with product and compliance teams to implement features aligned with French fiscal regulations.Interface with clients to understand technical requirements and provide integration support.Participate in certification processes to meet AT standards.Write clean, maintainable code and contribute to architectural decisions.