Senior / Lead .NET Developer (Full Remote)

Adentis; Lisboa; Remote; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Health benefits

100% Remote

Great Work-Life balance

Flexible organizational routine

Team Building activities

Job summary

Adentis is seeking a Senior/Lead .NET Developer to contribute to modern software solutions with a strong backend focus. You will own technical challenges, drive architectural decisions and mentor peers.

The role supports a 100% remote model and offers opportunities for continuous professional development and career progression within a People-first culture.

Qualifications

• Proven experience as senior/lead backend developer.
• Strong knowledge of C#, .NET, ASP.NET Core.
• Experience designing REST APIs and scalable backend services.
• Understanding of software architecture and design patterns.

Responsibilities

• Design, develop and maintain scalable applications using C# and .NET.
• Build and evolve backend services, APIs and distributed applications.
• Contribute to software architecture and technical design decisions.
• Ensure code quality, performance, security and maintainability.
• Identify opportunities to improve existing systems and processes.
• Collaborate with development teams, providing technical guidance.
• Participate in code reviews and promote best practices.
• Explore opportunities to leverage AI technologies in development.

Skills

Senior/Lead level

C#

ASP.NET Core

API design

SQL databases

OOP / SOLID

CI/CD

Git

Technical leadership

Distributed systems

Backend development

Tools

Azure

AWS

Job description

With just over 10 years of experience in the Portuguese market, we share our DNA with more than 200 workers and position our offer according to 3 lines of service:

• Strategy (Outsourcing, NeXel, Team as a Service, Tech Academies);
• Nearshore.

In ADENTIS, we focus on PEOPLE. This is our emotional salary:

• Great Work-Life balance;
• Very flexible organizational routine;
• Health benefits (for you and your family);
• Team Building activities;
• Over 300 protocols to offer you great discounts in different areas;
• Continuous professional development sponsored by our Training and Certification Department;
• Regular feedback on your performance through a personalized plan;
• Comprehensive career plan and progression involving assertive performance reviews.

Role Overview

We are looking for an experienced Senior / Lead .NET Developer to contribute to the development and evolution of modern software solutions. This opportunity is suited to professionals with a strong backend development background, solid architectural knowledge and the ability to take ownership of technical challenges, contribute to engineering decisions and support other developers.

Key Responsibilities

• Design, develop and maintain scalable applications using C# and .NET.
• Build and evolve backend services, APIs and distributed applications.
• Contribute to software architecture and technical design decisions.
• Ensure code quality, performance, security and maintainability.
• Identify opportunities to improve existing systems and development processes.
• Collaborate with development teams, providing technical guidance and knowledge sharing.
• Participate in code reviews and promote engineering best practices.
• Explore opportunities to leverage AI technologies in software development and application solutions.

Tech Stack & Core Requirements

• Experience: Solid professional experience in software development, ideally at Senior or Lead level.
• Backend: Strong knowledge of C#, .NET and ASP.NET Core.
• Architecture: Good understanding of software architecture, design patterns and distributed systems.
• APIs: Experience designing and developing REST APIs and backend services.
• Databases: Experience with relational databases and SQL.
• Engineering Practices: Knowledge of OOP, SOLID principles, automated testing, Git and CI/CD.
• Technical Leadership: Ability to take ownership of technical decisions and collaborate with development teams.

Nice to Have

• Experience with Event Sourcing and CQRS.
• Knowledge of event-driven architectures and messaging systems.
• Experience integrating AI technologies or working with AI-assisted development tools.
• Familiarity with cloud platforms such as Azure or AWS.
• Experience with microservices architectures.

Work Model

100% Remote.

We walk with you!

At Adentis we defend equality and value diversity. We create a safe, diverse environment where opportunities are equal for all employees!

We do not discriminate based on age, ethnicity, sexual orientation, gender, disability or any factor other than merit.

All candidates with skills for the position are welcome!