Mid-Senior FullStack Developer.

Olisipo
📍 Lisbon, Lisbon, Portugal 💼 Full-time 🕒 Posted February 26, 2026

Job Description

Profile:
- Degree in Computer Science, Computer Engineering or related area;
- At least 3 years of experience with .NET Framework, C#, LINQ and SQL;
- Strong knowledge of Client/Server architecture and TCP/IP communication protocols;
- Proficiency in Database Modelling and Design, particularly with PostgreSQL;
- Experience with GitLab, GitHub and Jira;
- Comfortable working in an Agile environment and collaborating in cross-functional teams;
- Excellent problem-solving mindset and effective communication skills;
- Fluent in spoken and written English.
Responsibilities:
- Maintain and enhance a Windows-based Client/Server Application using TCP/IP socket communication;
- Refactor and modernise legacy .NET code, ensuring seamless interaction between distributed clients and backend servers;
- Collaborate with Product Owners, Business Units and fellow Developers to improve and maintain software solutions;
- Use tools like Jira, Azure DevOp...

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Job Details

  • Location Lisbon, Lisbon
  • Job Type Full-time
  • Category Business Operations Specialists
  • Posted Date February 26, 2026
  • Application Deadline April 07, 2026