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Mid-Senior .NET Developer – Microsoft Technologies & E-commerce
Location: Lisbon, Portugal – City Centre
Work Model: Hybrid (3 days/week on-site)
Employment Type: Full-time | Permanent or B2B
Expected Start: ASAP
Compensation:
* B2B: Up to €250/day + VAT
* Permanent: Up to €40.000 gross/year + Flexible Benefits
About SWORD Portugal
At SWORD Portugal, we believe technology creates real value when combined with the right people, expertise and ambition.
As part of the international SWORD Group, we help organisations accelerate their digital transformation through technology consulting, software engineering, digital platforms and specialised IT services.
Our teams collaborate with clients across different industries, combining technical excellence, knowledge sharing and a people-first approach.
We are continuously strengthening our presence in Portugal, offering technology professionals the opportunity to work on meaningful projects while building their careers within a collaborative and growing organisation.
The Opportunity
We are looking for a Mid-Senior .NET Developer to join an established technology team supporting a leading organisation in the retail and e-commerce sector.
The project involves the continuous development, maintenance and evolution of business-critical applications and digital platforms within a Microsoft technology ecosystem.
This is a hands-on development role where technical autonomy, problem-solving skills and the ability to work effectively under pressure are essential.
Beyond writing code, we are looking for someone who takes ownership of their work, communicates confidently with stakeholders and can independently manage technical challenges in a dynamic business environment.
You will work closely with technical teams and business stakeholders, contributing to the stability, performance and continuous improvement of existing solutions while supporting new developments.
What You'll Be Doing
* Develop, maintain and enhance applications using C#, .NET and .NET Core / ASP.NET Core.
* Design, develop and integrate RESTful APIs and backend services.
* Contribute to the development and evolution of web applications within a Microsoft-based ecosystem.
* Work with SQL Server, including database queries, stored procedures and performance optimisation.
* Support integrations between internal applications, business systems and external services.
* Contribute to application architecture, code quality and technical improvements.
* Investigate and resolve technical issues, ensuring application stability and reliability.
* Participate in application deployments and CI/CD processes using Azure DevOps or similar tools.
* Collaborate with business stakeholders to understand requirements and translate them into practical technical solutions.
* Manage development tasks independently, balancing priorities, deadlines and production-related challenges.
* Contribute to both new feature development and maintenance of existing applications.
* Support technical discussions and propose improvements to existing processes and solutions.
What We're Looking For
* 4+ years of professional experience in software development, with solid hands-on experience in C# and .NET technologies.
* Strong experience with .NET Core / ASP.NET Core and backend application development.
* Practical experience designing, developing and consuming REST APIs.
* Good knowledge of SQL Server and relational databases.
* Experience working with web applications and modern software development practices.
* Familiarity with Microsoft Azure environments and Azure DevOps.
* Understanding of CI/CD processes, Git and version control workflows.
* Ability to analyse, troubleshoot and resolve technical problems independently.
* Experience working on existing enterprise applications, including maintenance, improvements and new developments.
* Strong communication skills and confidence when interacting with technical and non-technical stakeholders.
* Ability to manage competing priorities, tight deadlines and demanding situations.
* Strong sense of ownership, accountability and commitment to delivery.
* Good command of Portuguese and working proficiency in English.
**Above all, we value practical experience, autonomy and the ability to deliver reliable solutions over an extensive list of technologies.**
Nice to Have
* Experience with Angular or other modern front-end frameworks.
* Experience with microservices and distributed architectures.
* Familiarity with Azure cloud services and cloud-native application development.
* Experience with automated testing and unit testing frameworks.
* Knowledge of messaging systems and asynchronous integrations.
* Experience in retail, e-commerce or high-transaction digital environments.
* Previous experience in client-facing consulting environments.
* Familiarity with Agile methodologies, including Scrum or Kanban.
The Profile We're Looking For
We value professionals who combine technical competence with the right mindset.
The ideal candidate is someone who:
* Takes ownership: Can independently manage responsibilities and deliver results without constant supervision.
* Stays effective under pressure: Remains focused, organised and solution-oriented when facing demanding situations.
* Communicates clearly: Can discuss technical challenges, manage expectations and collaborate directly with stakeholders.
* Is pragmatic: Understands that enterprise applications require a balance between innovation, stability and business continuity.
* Is adaptable: Feels comfortable working with existing systems while contributing to their continuous improvement.
* Is hands-on: Enjoys solving technical problems and contributing directly to development activities.
Why Join SWORD Portugal?
Meaningful projects: Contribute to business-critical applications supporting a well-established retail and e-commerce organisation.
Technical ownership: Take responsibility for development activities and contribute to technical decisions and improvements.
Professional growth: Expand your expertise within the Microsoft technology ecosystem while working alongside experienced professionals.
Collaborative environment: Join a team that values knowledge sharing, accountability and practical problem-solving.
Flexible engagement options: Choose between a permanent employment contract or a B2B collaboration model.
Growing organisation: Become part of SWORD Portugal and explore future opportunities across a diverse portfolio of technology projects.
Important – Location & Eligibility
This opportunity follows a hybrid working model requiring three days per week on-site in central Lisbon.
Applicants must be based in Portugal, have the legal right to work in the country and be available to attend the office according to the project's requirements.
Ready for Your Next Challenge?
If you are a .NET Developer who enjoys technical ownership, solving real business challenges and working in a dynamic environment, we would like to hear from you.
Apply now and join SWORD Portugal!