Estuardo Sierra

Freelance, Web And Desktop Developer

Around the World

about me


I am a creative and dynamic IT professional based in Braga, Portugal. I have a great passion for software development (Desktop/Web/Mobile) and MS Networks. My work is a central part of my life, I love what I do. The challenge, the endless learning curve and the mission accomplished feeling, is what make me want for more.
I’m known for my love of out-of the office projects! I enjoy creating side projects outside of my working life, it's what keeps me updated with the latest trends and technologies.
Design and development are both creative pursuits, they are mutually inclusive, one couldn’t exist without the other. Having said that I enjoy coding and bringing data to life, which is why I wouldn’t classify myself as ‘ui designer’ but instead one that can bridge two philosophies and ways of thinking.

My work doesn’t end with the brief. Going beyond the parameters and models that have been set out is essential, not only for my own personal achievement and development but it reflects back in the final product.
I speak spanish, portuguese, english and basic chinese.
The reason why i think i can help you is that I never follow the If ain't broken, don't fix it, i believe there is always room for improvement.

what i do

Microsoft Platform

Visual Studio

Visual Studio

I started with version 2k2 "Rainier" all the way long up to this last release Visual Studio 2017 version 15.7.5
16 years of experience.

SQL Server

SQL Server

This is an intimate relation that started back in 2k and growth with the time. Today I design & build DBs in the latest versions including SQL 2k14 & 2k16.
18 years of experience.

ASP.Net

ASP.Net

With the internet boom, I started to develop professional web apps since 2k8, mainly for intranets, e-commerce and corporate websites.
10 years of experience.

Ajax

Ajax

Ajax was a game changer since day one. I'd been working with client-side since 2k8 tied to ASP.Net.
10 years of experience.

VB.Net

VB.Net

This was (and still is) my favourite language since 1985.
16 years of experience.

C#.Net

C#.Net

Moving from VB.net to C# was challenging. Today is my primary lang. for development.
10 years of experience.

MS Access

MS Access

This was my first RDM back in '97. I like this tool so much that I have a website just for Access.
21 years of experience.

WCF

WCF

One of the so awaited technologies. I grabbed this one as soon as I could, even so, just in 2k14 I could seriously (ab)use in a massive project.
6 years of experience.

.Net Framework

.Net Framework

from .net 1. to 4.6.1
16 years of experience.

.Net Core

.Net Core

not so much yet… :(
1 years of experience.

Machine Learning

Machine Learning

Accord.NET… Experimental
0 years of experience.

Web Api

Web Api

MVC 5.x Web API
3 years of experience.

WEB Tools & Frameworks

Bootstrap

Bootstrap


6 years of experience.

Kendo UI

Kendo UI


6 years of experience.

Crystal Reports (SAP)

Crystal Reports (SAP)

Web & Desktop Reports
17 years of experience.

Telerik

Telerik

Web/Desktop
14 years of experience.

Java Script

Java Script


9 years of experience.

Jquery

Jquery


9 years of experience.

CSS3

CSS3


9 years of experience.

HTML5

HTML5


4 years of experience.

Latest projects

Knowledge base Search Engine
Primavera Bussiness

Role: Snr. Developer
Tools
ASP.NET, ASP Classic, C#,VBScript, javaScript WCF, .Net framework 4.0

SI.VIDA V2
SPMS

Role: Snr. Architect
Tools
ASP.NET WebForms, C#, javaScript/Jquery, HTML, CSS, .Net framework 2.0, SQL Server 2008

Car Renting Simulator
Finlog

Role: Snr. Engeneer
Tools
ASP.NET WebForms, C#, javaScript, HTML5, CSS, .Net framework 4.0, SQL Server 2014, Linq

Booking & Dispatch System
ChoiceCar

Role: Team Leader
Tools
ASP.NET MVC, C#, javaScript, HTML5, Bootstrap, Kendo UI, .Net framework 4.0, SQL Server 2014, Linq

Fleet Mainteinance System
Transdev

Role: Team Leader
Tools
ASP.NET MVC, C#, javaScript, HTML5, Bootstrap, Kendo UI, .Net framework 4.0, SQL Server 2014, Linq

Contact Center
eBankit

Role: Snr. Architect
Tools
ASP.NET MVC, Web API C#, javaScript/Jquery, HTML5, Bootstrap, .Net Core 2, SQL Server 2016, Linq, dapper, SignalR

TPA's Management Module
BNI Angola

Role: Team Leader
Tools
ASP.NET WebForms, C#, javaScript, HTML5, Bootstrap, .Net framework 4.0, SQL Server 2016, Linq


Get in Touch!



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