Senior Fullstack Developer

About Welvaart

At Welvaart, we create technology solutions that put people at the center.
Our close leadership style and flexible culture of growth empower our teams and elevate the quality of our delivery. We combine rigor, innovation, and empathy to drive projects that transform businesses and build lasting relationships of trust.

We complement this vision with a performance‑driven Digital Marketing offering, helping companies strengthen their visibility, enhance their online presence, and accelerate growth through smart, measurable strategies.

Project

We are looking for a Senior Full Stack Developer for a project with an international client

Role

• Design, develop, and maintain web applications using C# and .NET Core
• Create and enhance front-end user interfaces with modern frameworks
• Develop server-side logic to support front-end elements
• Collaborate with product managers, designers, and other developers
• Ensure high performance and responsiveness of applications
• Debug and resolve technical issues
• Write and maintain comprehensive technical documentation
• Participate in code reviews and team meetings

We are looking for

• Bachelor's degree in Computer Science or related field
• 6+ years of experience in full stack development
• Proficiency in C# and .NET Core
• Experience with front-end frameworks such as Angular, React, or Vue.js
• Solid understanding of database systems, particularly SQL Server
• Familiarity with Agile development methodologies
• Strong problem-solving skills
• Excellent communication and teamwork abilities
• Location: Hybrid 2x in Lisbon (Portugal)

What you can discover with us?

• Be part of a tech start-up
• Different scopes of project in different sectors
• Structure of fairness and equity salary (Consultant Profile)
• Training & Certification
• Career Path management
• More than 30 Partnerships

UNLEASH THE POWER OF YOUR CAREER