Waber Júnior

Senior C# .NET Developer

Goiânia - GO, Brazil

Profile Score

About

Senior Fullstack Developer with 6 years of experience specializing in .NET and Angular. I work across the entire development lifecycle, from architecture to delivery, building scalable, high-performance applications with strong maintainability and best practices (Clean Architecture, SOLID, DDD). Experienced in technical leadership, DevOps culture, and agile teams (Scrum and Kanban).

Skills & Expertise (11)

C# ASP.NET Angular Entity Framework Vue.js HTML CSS JavaScript jquery Tailwind bootstrap

Work Experience

Fullstack Developer | SAP SD Analyst (Trainee)

LITSOLUTIONS

September-2019 - January-2021

Handled support tickets and performed issue analysis related to the SD (Sales and Distribution) module in the SAP R/3 ERP, identifying and solving business-related problems. Investigated system failures and inconsistencies using the SAP Debug tool, contributing to more accurate diagnostics. Prepared functional specifications for system bug fixes and process improvements. Developed features and implemented fixes in an internal ticket management platform using PHP and MySQL. Created dashboards and analytical reports using Power BI to support data-driven decision-making.

Project Manager | Tech Lead

MADEFY

October-2022 - Present

Responsible for project management and leading daily meetings with cross-functional teams to align scope, deadlines, and deliverables. Acted as Tech Lead, driving technical decisions, ensuring adherence to architectural best practices, and promoting delivery quality. Maintained direct communication with stakeholders and clients for requirements gathering, problem-solving, and strategic decision-making. Created and validated functional and technical specifications for new features, bug fixes, and system integrations. Mentored developers, accelerating their adaptation to the technical environment and fostering continuous growth within the team. Applied agile methodologies (Scrum and Kanban) to ensure consistent and on-time deliveries. Collaborated with product, design, and infrastructure teams to align technical solutions with business needs. Supported prioritization and roadmap decisions with a focus on technical feasibility and business impact.

Senior Fullstack Developer .NET | Angular

MADEFY

January-2021 - Present

Technical leadership in the development of fullstack web applications using .NET Core and Angular, applying Clean Architecture, SOLID principles, and Domain-Driven Design (DDD). Implementation of new features, bug fixing, and continuous improvements in business-critical projects, with a strong focus on scalability and maintainability. Creation and maintenance of CI/CD pipelines, as well as management of cloud infrastructure (Azure Cloud, Azure DevOps). Integration with third-party services such as Stripe, OpenAI, and WhatsApp, including authentication, security, and asynchronous communication. Development of RESTful APIs, background jobs using Hangfire, dynamic scheduling, and process automation. Active participation in code reviews, design pattern definition, and technical documentation. Hands-on experience with relational databases (SQL Server, PostgreSQL, MySQL) and query optimization. Work on scalable, high-availability systems with a strong focus on performance, observability, and resilience.