Senior Full-Stack Software Engineer

Tillster, Inc.

📍 Lisbon, Lisbon, Portugal

Full-time Computer Occupations Posted February 24, 2026

Job Description

Job Title: Senior Full-Stack Software Engineer Location: REMOTE BUT YOU MUST LIVE IN PORTUGAL Job Summary: Contribute to the design, development, and support of scalable, integrated business systems across web, cloud, and enterprise platforms.


You’ll work alongside the Principal Architect to build high-performance applications, and integrations using .NET (Framework/Core), SQL (MySql/MSSQL/PgSql) databases, AWS, and third-party systems.


Key Responsibilities Develop and maintain full-stack features using .NET (Framework/Core) and relational database with HTML/JavaScript Integrate third-party systems (Internal, Stripe, NetSuite, Simphony, QuickBooks) with internal platforms.


Write and optimize SQL queries (MySQL, PostgreSQL, MSSQL); familiarity with NoSQL (DynamoDB/Mongo) a plus.


Participate in code reviews, pull requests, and collaborative design discussions.


Deploy services using AWS infrastructure (EC2, RDS, Lambda, S3) and ma...