Hybrid .NET Developer – C#/REST APIs (Mid to Senior)

DataSmart; Lisboa; Hybrid; EUR 42,000 - 56,000; Full time

Job summary

DataSmart is seeking a capable .NET Developer Mid and Senior to join our hybrid team across Lisbon, Porto, Coimbra and Braga. You will design, develop, and maintain C# applications, build RESTful APIs, and collaborate with cross-functional teams to deliver scalable software.

The ideal candidate has a Bachelor's in CS and 3–5+ years in C#/.NET, strong OO design, and experience with React or Next.js is a plus. English proficiency required and Lisbon/Porto hybrid work.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• 3+ and 5+ years of experience with C#, .NET (.NET Framework and/or .NET Core).
• Strong understanding of software architecture, design patterns, and object-oriented programming.
• Experience designing and developing RESTful APIs.
• Hands-on experience with SQL and/or NoSQL databases.
• Experience with modern frontend frameworks such as React, Next.js, or similar (Nice to have)
• Experience working with scalable applications and microservices architectures.
• Familiarity with CI/CD pipelines, Git, and DevOps practices.
• Experience with CMS/DXP platforms is a plus.
• Professional English proficiency (minimum B2).
• Based in Portugal and available to work in a hybrid model

Responsibilities

• Design, develop, and maintain high-quality applications using C# and .NET technologies.
• Build scalable, secure, and high-performance software solutions following industry best practices.
• Develop and integrate RESTful APIs to support modern applications.
• Collaborate with cross-functional teams to deliver robust and innovative solutions.
• Contribute to software architecture, code reviews, and technical discussions.
• Work with SQL and NoSQL databases to ensure performance and reliability.
• Participate in implementing CI/CD pipelines and DevOps best practices.
• Troubleshoot, optimize, and continuously improve existing applications and systems.

Skills

C#

.NET

OOP

API design

English proficiency

Education

Bachelor’s degree in Computer Science

Tools

React

Next.js

Git

CI/CD

DevOps

SQL

NoSQL

Job description

DataSmart is seeking a capable .NET Developer Mid and Senior to join our hybrid team across Lisbon, Porto, Coimbra and Braga. You will design, develop, and maintain C# applications, build RESTful APIs, and collaborate with cross-functional teams to deliver scalable software.

The ideal candidate has a Bachelor's in CS and 3–5+ years in C#/.NET, strong OO design, and experience with React or Next.js is a plus. English proficiency required and Lisbon/Porto hybrid work.