Kelvin D.
Back-end and Systems Engineer

Skills

Microsoft Sql Server

Github

.NET

Asp.net

Javascript

C++

Cascading Style Sheets

Oracle Database

Visual Basic .Net

React

Xamarin

Postgresql

Kelvin is available for hire

Meet Kelvin D.

All Howdy Candidates are vetted for skills and english proficiency.

Bio

Senior Analyst Developer with over 12 years of experience, exhibiting a strong motivation for challenges and a rapid learning capacity. Demonstrates proficiency in handling pressure, excelling in teamwork environments, and valuing high performance. Specializes in .Net development with expertise in Desktop, Web, API Rest (both with and without JWT), and Mobile development. Possesses a comprehensive understanding and practical experience with agile methodologies, particularly SCRUM and KANBAN. Holds extensive experience in accounting as well as the finance and banking sectors.

senior developer analyst
2/1/2023 - 12/1/2023

Contributed to the development of the REINF API for government submissions, focusing on a .Net CORE C# REST API. Engaged in the maintenance and enhancement of both modern and legacy Web APIs. Worked on the development of an API dedicated to generating investment and loan reports. Developed functions and stored procedures for MySQL and SQL Server databases, ensuring efficient data handling and retrieval.
Senior Requirements Developer (Full Stack)
9/1/2022 - 2/1/2023

Developed expertise in Oracle, performing function corrections and other maintenance activities in relational database systems. Spearheaded the development of REST APIs, ensuring robust and efficient backend communication. Gained significant proficiency in front-end development using React, implementing both enhancements and bug fixes in existing systems. Contributed to projects within the banking sector, applying technical skills to optimize and improve systems.
Senior Backend Developer
3/1/2022 - 8/1/2022

Developed new features and maintained both the legacy system (Web Forms ASP.NET) and the new system (ASP.NET MVC). Utilized GIT for code versioning within DEVOPS, demonstrating proficiency in collaborative development workflows. Worked extensively with SQL Server Database, which involved creating functions and writing complex database scripts.
Software Developer
8/1/2021 - 12/1/2021

Served as a mid-level developer within a dedicated squad, focusing on enhancements and bug fixes for existing systems. Employed C#, ASP.Net, and ASP Core for application development. Demonstrated expertise in relational database management, performing critical corrections to functions in SQL Server and Oracle. Engaged in API development and maintenance, ensuring seamless integration and functionality of existing APIs.
.Net Xamarin Developer
7/2/2018 - 7/2/2019

Developed and launched an application and website geared towards local commerce, specifically targeting clothing stores and snack bars, using C# Xamarin for mobile development and ASP.Net for the web interface. The project involved designing and implementing user-friendly interfaces, ensuring responsive design across multiple devices, and integrating various payment gateways to facilitate smooth transactions. Utilized extensive knowledge in object-oriented programming to maintain robust code quality and implemented cloud services to enhance application scalability and reliability. Applied RESTful APIs to enable seamless data exchange between the application and server while ensuring data security and user privacy compliance. Employed collaborative version control tools such as Git to maintain code integrity and facilitate teamwork throughout the development lifecycle. Enhanced performance and user experience through continuous optimization and rigorous testing protocols.
Developer
1/2/2013 - 8/1/2021

In the role of Mid-level .Net Developer, developed both desktop and web applications using VB.Net, C#, and ASP.NET. Specialized in creating and integrating modules for public administration bodies, including Transparency Portal, Purchasing, Bidding, Auction, Accounting, Planning, LDO (Budget Guidelines Law), Prosecution, Audit, and Integration Module. Utilized PostgreSQL and SQL Server databases to support these modules. Conducted migration of a legacy system from VBA (Visual Basic 6 + Access) to an updated platform using VB.Net, C#, and PostgreSQL, ensuring seamless transition and enhanced system performance.