Fullstack .NET Developer

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Description

We are looking for an experienced .NET Fullstack Developer with a solid command of JavaScript to join our team. The professional will be responsible for developing and maintaining robust web applications, working both on the backend with .NET technologies and on the frontend with JavaScript and modern frameworks.


Requirements

  • ​Minimum of 3 to 5 years of relevant experience in .NET Fullstack development.
  • Minimum education: Ideally university degree. Even better if you have a Bachelor’s or Technologist’s degree in Computer Science, Software Engineering or related areas.
  • Relevant experience can compensate for a lack of formal training.
  • Certifications Not mandatory, but Microsoft certifications (e.g. Azure Developer Associate) are a plus.
  • Do you intend to interview? Yes, the process includes technical and cultural alignment interviews.
  • Do you intend to apply tests? If necessary, the client will apply
Job requirements (mandatory)
  • Develop and maintain web applications using C# and .NET Framework/.NET Core.
  • Implement responsive and interactive user interfaces with JavaScript, HTML5 and CSS3.
  • Collaborate with the team to define, design and implement new features.
  • Ensure code quality through unit and integration testing and code review.
  • Optimize applications for maximum performance, scalability and security.
  • Participating in all phases of the software development life cycle.
  • Proposing and implementing technical and architectural improvements.
  • Proven experience as a Fullstack .NET Developer.
  • Solid knowledge of C# and .NET Framework/.NET Core.
  • Advanced knowledge of JavaScript, HTML5 and CSS3.
  • Experience with relational databases (e.g. SQL Server, PostgreSQL).
  • English level B1/B2 (Intermediate) for reading and technical writing.
Job requirements (desirable)​
  • ​Experience with frontend frameworks (React, Angular, Vue.js).
  • Knowledge of developing RESTful APIs.
  • Familiarity with version control (Git).
  • Experience with agile methodologies (Scrum, Kanban).
  • Knowledge of cloud computing (Azure, AWS).
  • Experience with CI/CD tools.
  • Higher education in Technology


Benefits

The benefits will be determined once the contractual conditions have been defined.

Information

  • Date Posted: July 2, 2025
  • Location: Lisboa / Portugal
  • Experience: Medior (4-5 years)
  • Job Type: Full Time
  • ID: BIZ-0001144
  • Apply now

Join a team that values your growth

We’re always looking for talented people who want to make an impact. If this role sounds like a good fit, take the next step — apply now and let’s build something great together.

Working at Biz means being in an environment where the pace is fast, but the support from the team makes all the difference. It’s a place where we learn every day, even through challenges — and there are plenty of them! 😊

What I value most is the openness to share ideas, the spirit of teamwork, and the constant drive to improve processes. It’s not always easy, but it’s always an opportunity to grow.

Joana Profano HR Administrator

I’m New to the Biz Team, and It’s Already Been an Amazing Experience!
Since day one, it’s been an incredible journey! The company has such a positive environment, with people always willing to help each other. I felt so welcomed right from the start, especially with the welcome gifts — #lovedit <3!

More than that, I feel useful, valued, and motivated to grow alongside the team. Thank you, Biz, for the opportunity!

Ana Nonato Data Analyst

Working at Biz Is Like Diving into a World of Opportunities
Here, we have the freedom to be creative, grow, and constantly learn through new experiences.

In my case, having moved from Brazil to Portugal, Biz has been more than just a workplace — it was a crucial pillar of support during my adaptation to a new culture. This environment gave me the strength to face the challenges of immigrant life with more ease and confidence.

I am immensely happy to be part of the Biz team and to contribute positively to the growth of the company and the amazing people who walk this journey with me.

Catlen Silva HR Supervisor

Working at Biz Was a Turning Point
I had never worked in a company focused on the IT sector before, so it posed a professional challenge for me. However, when I was contacted by one of the recruiters inviting me to a selection process, I was certain it was a place where I could learn and develop new skills...

Tatiane Santos HR Assistent

I’ve Been at Biz for Two Years, and I’m Very Proud of My Journey Here
This was my first 100% remote job, an opportunity I had always wanted that gave me geographic freedom. I was able to explore new places and cultures without giving up my work, which was transformative for both my personal and professional life...

At Biz, I’ve always had the space to contribute ideas and suggestions for improvement. The environment is collaborative, open to dialogue, and fosters innovation. I learn every day from a committed team and inspiring leaders who support our growth.

Daiany Leite Finacial Analyst

It’s the Kind of Job Where You Truly Dedicate Yourself Because You Believe in What You’re Doing Surrounded by people who have become your journey partners, it’s a fulfilling experience. At the end of each month, when you take a moment to reflect, you realize that beyond the financial return, you’ve gained more preparation, more confidence, and a professional and personal skillset that no one can take away from you.

Renata Fernandes Executive Board Assistant

It’s a Privilege to Be at Biz
More than just a place to fulfill our responsibilities, we find an environment of collaboration, a space to speak and be heard — in other words, a place to grow. Here, we encounter people who are humble rather than driven by egos.

I am grateful to be part of this team, where there’s room for us to build together through support but, above all, respect. The diversity of ideas is truly inspiring and contagious.

Thais Vasconcelos Talent Acquisition Lead

Working at Biz Means Innovating Every Day
It’s about challenging yourself and being valued for it. Here, we have a world of possibilities, and being in a space where collaboration is a core value makes all the difference in our daily lives at the company.

We feel appreciated, and we have a voice.

Pamella Berzoini Marketing Analyst

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What our employees say

Working at Biz means being in an environment where the pace is fast, but the support from the team makes all the difference. It’s a place where we learn every day, even through challenges — and there are plenty of them! 😊

What I value most is the openness to share ideas, the spirit of teamwork, and the constant drive to improve processes. It’s not always easy, but it’s always an opportunity to grow.

Joana Profano HR Administrator

I’m New to the Biz Team, and It’s Already Been an Amazing Experience!
Since day one, it’s been an incredible journey! The company has such a positive environment, with people always willing to help each other. I felt so welcomed right from the start, especially with the welcome gifts — #lovedit <3!

More than that, I feel useful, valued, and motivated to grow alongside the team. Thank you, Biz, for the opportunity!

Ana Nonato Data Analyst

Working at Biz Is Like Diving into a World of Opportunities
Here, we have the freedom to be creative, grow, and constantly learn through new experiences.

In my case, having moved from Brazil to Portugal, Biz has been more than just a workplace — it was a crucial pillar of support during my adaptation to a new culture. This environment gave me the strength to face the challenges of immigrant life with more ease and confidence.

I am immensely happy to be part of the Biz team and to contribute positively to the growth of the company and the amazing people who walk this journey with me.

Catlen Silva HR Supervisor

Working at Biz Was a Turning Point
I had never worked in a company focused on the IT sector before, so it posed a professional challenge for me. However, when I was contacted by one of the recruiters inviting me to a selection process, I was certain it was a place where I could learn and develop new skills...

Tatiane Santos HR Assistent

I’ve Been at Biz for Two Years, and I’m Very Proud of My Journey Here
This was my first 100% remote job, an opportunity I had always wanted that gave me geographic freedom. I was able to explore new places and cultures without giving up my work, which was transformative for both my personal and professional life...

At Biz, I’ve always had the space to contribute ideas and suggestions for improvement. The environment is collaborative, open to dialogue, and fosters innovation. I learn every day from a committed team and inspiring leaders who support our growth.

Daiany Leite Finacial Analyst

It’s the Kind of Job Where You Truly Dedicate Yourself Because You Believe in What You’re Doing Surrounded by people who have become your journey partners, it’s a fulfilling experience. At the end of each month, when you take a moment to reflect, you realize that beyond the financial return, you’ve gained more preparation, more confidence, and a professional and personal skillset that no one can take away from you.

Renata Fernandes Executive Board Assistant

It’s a Privilege to Be at Biz
More than just a place to fulfill our responsibilities, we find an environment of collaboration, a space to speak and be heard — in other words, a place to grow. Here, we encounter people who are humble rather than driven by egos.

I am grateful to be part of this team, where there’s room for us to build together through support but, above all, respect. The diversity of ideas is truly inspiring and contagious.

Thais Vasconcelos Talent Acquisition Lead

Working at Biz Means Innovating Every Day
It’s about challenging yourself and being valued for it. Here, we have a world of possibilities, and being in a space where collaboration is a core value makes all the difference in our daily lives at the company.

We feel appreciated, and we have a voice.

Pamella Berzoini Marketing Analyst

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