Senior .NET

We’re looking for the special, unique and amazing YOU @ KCS IT, we look for the ones that stands out, for those that always wants to be better and fight for it, and for those who has the same values that we do: dedication, energy, integrity, transparency, flexibility, trust, honesty, hard work, proactivity, team work.

At KCS we stand for equality and value diversity. We create a safe, diverse environment where opportunities are equal for everyone We do not discriminate based on age, ethnicity, sexual orientation, gender, disability or any factor other than merit. All applications with skills for the position are welcome

We are looking for an Amazing: .Net Developer @ WPF Seniority: 4+ Type of position: Hybrid 1x at the office The amazing you, will have:

5+ years of professional experience developing applications using

Microsoft .NET technologies;

Strong and recent hands‑on experience with

WPF

and the

MVVM

pattern;

Solid expertise in

C#

and modern

.NET Core/.NET 8+

development;

Strong knowledge of

concurrency ,

multithreading , and

asynchronous programming (async/await)

in desktop applications;

Ability to develop high‑performance, responsive user interfaces;

------->Extensive experience with:

Data Binding;

Triggers;

DataTemplates;

ObservableCollection and reactive collections;

Experience working with

SQL Server;

Strong understanding of database design and query optimization.

Ability to create and optimize complex SQL queries;

Experience developing and consuming

REST APIs;

Knowledge of system integrations and service‑oriented architectures;

Proficiency with

Git

version control;

Experience creating and managing

ClickOnce

deployments and installers.

Fluent in

Portuguese and English .

Responsibilities:

Design, develop, and optimize complex desktop applications using

C#, WPF, XAML, and .NET 8/9 , working across both front‑end and back‑end layers;

Apply the

MVVM

architectural pattern to deliver scalable, maintainable, and testable solutions.

Optimize application performance by improving UI rendering, preventing memory leaks, and implementing advanced asynchronous programming techniques;

Develop reusable

Custom Controls

and

User Controls , while managing styles, themes, and shared XAML resources;

Collaborate with UI/UX, QA, and development teams to deliver high‑quality user experiences and robust software solutions;

Support the modernization and migration of legacy desktop applications (WinForms, VB.NET, legacy WPF) to modern .NET and C# technologies;

Contribute to architectural improvements, code quality initiatives, and continuous enhancement of desktop application performance and maintainability.

Nice to have:

Experience writing

unit tests

for ViewModels and contributing to

Code Reviews;

Exposure to

Microsoft Azure

and

Azure DevOps;

Experience with

CI/CD pipelines

and software release automation;

Knowledge of

Web Development , particularly;

Razor Pages.

Why should you become part of our family?

You can develop a career that fits you : your career development is personalized, taking in consideration your needs and goals from a short to long term

Interesting Challenges Ahead : you can work for several clients from different sectors of activity

Free training programs : Our training and certification programs in languages, tech, behavior and business will help you to reach your full potential faster

International projects in Benelux:

you can gain international experience in Benelux and balance a new way of living with work

Type of projects

(depending on the project you might find one of this types of projects):

In hybrid Systems:

Is important to balance work with socialization, that´s why a hybrid system works for us and for you

Full Remote projects:

If you want work while you enjoy the comfort of your home

Full Onsite projects:

if you preferer the company of your colleagues

Take care of your well-being:

Enjoy our free nutrition, psychologist, general medicine appointments and our yoga and personal training days… all remote

Who are we? Founded in 2008 and based in Lisbon, KCS IT is a consulting company in the field of Information Technology and Services, focused on creating value for our clients through three main areas: Consulting, Outsourcing, Innova