Vinicius Paim | Senior App Support Engineer L3

01. About

Who I am

VP

Novo Hamburgo, Brazil

Senior Application Support Engineer with over 8 years of experience, specialised in advanced diagnostics, incident management, and root cause analysis (RCA) across complex ecosystems involving .NET, Java, SQL Server, Linux, Azure, and observability tools such as Zabbix and Jenkins.

Proven track record of performance-based promotions and measurable results in MTTR reduction and operational governance improvement. Open to international relocation and able to support the residency visa process.

8+ Years Experience

800+ Users Supported

90% MTTR Reduction

2.5yr L1 → L3 Journey

🇧🇷 Portuguese Native

🇬🇧 English B2 / Professional

🇪🇸 Spanish Basic

02. Experience

Career Timeline

Application Support Engineer L3

Gera Let

Jan 2026 — Present Current Remote

Diagnostics and resolution of production incidents in .NET and Azure applications with strict SLA compliance
Infrastructure monitoring with Zabbix and Jenkins; active participation in CI/CD pipelines using Azure DevOps and Docker
Low and medium complexity bug fixes in C# and SQL Server adjustments (triggers, views, stored procedures)
Participation in on-call rotations, war rooms, and critical incident management with documented RCA

.NETAzureC#SQL ServerZabbixDockerJenkins

IT Forensic Expert Analyst

Tribunal de Justiça do RS

Jun 2025 — Present Current Remote · Freelance

Judicial technical analysis of systems, databases, and IT infrastructure with expert report preparation
Failure analysis using RCA methodologies, leveraging logs, SQL, and processing data to support judicial decisions

RCASQLForensicsExpert Reports

Application Support Engineer L3

Rodosoft Tecnologia

Sep 2025 — Dec 2025 On-site

Implemented operational governance model with Jira and Elasticsearch, increasing team adoption from 29% → 85%
Reduced average fix delivery time by approximately 90% through structured prioritisation using the GUT Matrix
Served as technical liaison between Support and Engineering teams during .NET investigations with documented RCA

JiraElasticsearch.NETRCAGUT Matrix

Application Support Engineer L3

Animati PACS | RIS | Workstation

Jan 2021 — Jun 2025 4.5 years Remote

Promoted L1 → L2 in 2 years, then L2 → L3 in 8 months based on performance and technical expertise
Advanced support for 800+ users across Windows and Linux (Ubuntu Server) environments running Java applications
Proactive monitoring with Zabbix and pipeline automation with Jenkins across AWS, NGINX, Tomcat, and dcm4chee
Led war rooms with Product, Business, and Infrastructure teams for critical production incidents

JavaLinuxAWSZabbixDynatraceNGINXTomcatJIRA

Application Support Technician

Labimed Análises Clínicas

Nov 2019 — Dec 2020 On-site

Configuration and maintenance of a Red Hat server in a clinical production environment with 24/7 support coverage
Development of a corporate website in PHP with integration to the Pagar.me payment gateway, reducing operational costs

LinuxRed HatPHP24/7 Support

Technical Services Delivery Lead

RCE IT

Aug 2017 — Sep 2019 On-site

Sole technical point of contact (SPOC) for a B2B shopping centre account with Vivo Telefônica
Coordination of field technicians for corporate telecom installations; maintenance of fibre optic and Huawei antennas

TelecomField LeadershipFiber Optic

03. Skills

Technical Stack

⚡ Support & Operations

Production Support L3 Incident Management Root Cause Analysis SLA / SLO War Room On-Call 24/7 ITIL GUT Matrix

💻 Languages & Databases

C# / .NET

Java

Python

PHP

SQL Server

Bash / Shell

🏗️ Infrastructure & Cloud

Linux (Ubuntu, Red Hat)

Azure

AWS

Docker

NGINX

Tomcat

📊 Observability & CI/CD

Jenkins

Azure DevOps

Elasticsearch

Prometheus

RabbitMQ

📡 Zabbix / Dynatrace

🔧 Tools & Workflow

Jira / Jira Service Mgmt

Git

GitHub

Postman

📋 ZohoDesk / Movidesk

Swagger / OpenAPI

04. Projects

Featured Work

A selection of personal and learning projects on GitHub.

AsyncOrders

Distributed backend using .NET 10 with RabbitMQ, Outbox/Inbox Pattern, automatic retry, Dead Letter Queue (DLQ), and automated tests with real containers. Enterprise-grade message-driven architecture.

.NET 10 C# RabbitMQ Outbox Pattern Docker xUnit

DeliveryFlow API

Backend REST API for a multi-restaurant delivery platform built with Java and Spring Boot. Full CRUD, layered architecture, JPA/Hibernate, and RESTful principles.

Java Spring Boot JPA / Hibernate REST API Maven

PyPACS

Python system for DICOM image management and communication between physicians and patients. Built from hands-on experience supporting Animati's medical imaging infrastructure.

Python DICOM dcm4chee Medical Imaging

AgendaMed

Full-stack medical scheduling system with Java Spring Boot backend and TypeScript frontend. Demonstrates end-to-end development capability across the full application stack.

Java Spring Boot TypeScript Full-Stack REST API

View all on GitHub

05. Education