Senior Full-Stack Engineer
Full-Stack Engineer
Available for hire
Years of
experience
6+ years
Experience
level
Senior
Available
for
Full-time, Part-time, Contract, Freelance
Available from
29 Oct 2026
I’m a Senior .NET Software Engineer with 6+ years of experience building, modernizing, and supporting business-critical web applications and distributed systems.
My work focuses on C#, .NET/ASP.NET Core, REST APIs, microservices, event-driven architecture, SQL Server, Oracle, RabbitMQ, Redis, Docker, Azure, React, Angular, and CI/CD. I enjoy turning complex operational and business problems into reliable, maintainable software.
Across recent roles, I have supported 50+ production applications for an international enterprise, improved deployment frequency by 40%, contributed to 99.8% uptime, and helped reduce invoice delivery time by 90% through event-driven modernization. Earlier, I led a three-person billing team and delivered automation that saved an estimated R$184,000 annually and more than 630 hours of manual work per year.
My background in IT infrastructure gives me an end-to-end view of reliability, performance, networking, and operations. I’m interested in senior .NET, backend, and full-stack opportunities, especially with international remote teams working on APIs, distributed systems, modernization, and technically meaningful products.
Skills
JavaScript
TypeScript
Scrum
React.js
Next.js
Node.js
Tailwind CSS
SQL
Redis
Elasticsearch
Docker
Azure
GitLab
SASS
JIRA
Kubernetes
Microservices
OpenAI
jQuery
Swagger
JSON
Jenkins
JWT
RxJs
NgRx
MongoDB
PostgreSQL
RabbitMQ
Git
GitHub
CI/CD
MVC
Test Driven Development
Service workers
ChatGPT
OAuth
Domain Driven Development
Single Page Application
HTML
MS SQL Server
Oracle
.NET
Message queues
C#
Languages
Employment History
Senior .NET Software Engineer at
HCLTech
Current
2025
-
Now
Global technology services and consulting company supporting a major international enterprise in the agricultural and mining sector. As a core engineer responsible for high- availability KTLO (Keep the Lights On) operations, maintain mission-critical applications and resolve complex production incidents across multinational industrial environments by:
• Maintaining and supporting a portfolio of 50+ mission-critical production applications across Phosphate, Potash, and EHS (Environment, Health, and Safety) business units.
• Leading incident investigation, root-cause analysis, and production defect resolution across distributed enterprise systems, including API timeouts, data synchronization failures, workflow bottlenecks, and database connectivity issues.
• Supporting and enhancing complex enterprise integrations involving .NET background workers, message buses, Power Apps, REST APIs, and SQL Server databases.
• Achieved 100% SLA compliance across 222+ resolved incidents and service requests, consistently meeting the service requirements of a global enterprise environment.
• Maintained a Mean Time to Resolution (MTTR) of 17 hours and 52 minutes for complex production issues through proactive log analysis, structured triage, and efficient defect resolution.
• Sustained continuous availability of critical EHS, compliance, and access-control platforms, helping ensure uninterrupted access to safety and regulatory systems.
Technologies and tools: C# · .NET · .NET Core · SQL Server · Entity Framework Core ·
RESTful APIs · Enterprise Application Integration · Azure · Azure DevOps · ServiceNow ·
Power Apps
Senior Full-stack Software Engineer at
Montreal
2024
-
2025
Responsibilities:
• Maintain and enhance a complex portfolio of over 20 applications, including ASP.NET web applications and .NET microservices.
• Develop and improve front-end interfaces using React and Angular, focusing on enhancing user experience and ensuring system usability for a large-scale citizen-facing platform.
• Conduct rigorous code reviews and technical refinements to ensure consistency, quality, and adherence to best practices across the development team.
• Contribute to architectural discussions regarding the performance, scalability, and integration of distributed systems.
• Build, maintain, and enhance CI/CD pipelines using Jenkins, Flyway, GitLab, and SonarQube to ensure streamlined, reliable, and high-quality deployments.
Achievements:
• Increased deployment frequency by 40% by optimizing and automating CI/CD pipelines, significantly reducing the lead time for delivering new features.
• Integrated SonarQube into the CI/CD workflow, enforcing quality gates that led to a 25% reduction in code smells and potential bugs before reaching production.
• Improved the stability of critical public-facing applications, contributing to a 99.8% system uptime and ensuring reliable access for citizens of São Paulo state.
• Refactored key components in both .NET microservices and Angular applications, leading to a 15% improvement in application load time and overall performance.
Technologies used:
C#, .NET, Angular, .NET Core, .NET Framework, ASP.NET, SQL Server, xUnit, Moq, SonarQube, Jenkins, GitLab, Flyway, Docker.
Lead Software Engineer at
T2S
2023
-
2024
As the lead for the billing sector's 3-person development team, I was responsible for architecting solutions, mentoring junior engineers, and ensuring the successful delivery of all software projects.
Achievements:
• Led the migration of critical billing workflows to an event-driven microservices architecture, achieving a 90% reduction in invoice delivery time.
• Architected an automated container re-weighing process that generated estimated annual savings of over R$184,000 by eliminating rework.
• Designed and delivered a new module for the ship berthing planning system, saving the logistics team over 630 hours of manual work annually.
Technologies Used:
.NET · C# · React · Angular · Azure · RabbitMQ · Oracle Database · Redis · Elasticsearch · Kibana · Docker · Entity · Dapper (ORM) · Swagger · .NET Core · .NET Framework · Amazon Web Services (AWS) · Event-Driven Architecture · Microservices Architecture
Mid-Level Software Engineer at
T2S
2021
-
2022
In this role, I took ownership of key features within the company's 40+ applications. I was responsible for optimizing existing microservices, developing new features, and contributing to architectural discussions.
Achievements:
• Independently developed and deployed three major features for the billing system, improving data processing and accuracy.
• Optimized the performance of a critical data-sync worker service, reducing its processing time by 30%.
• Actively contributed to technical design sessions that shaped the company's move toward a more scalable microservices architecture.
Junior Software Engineer at
T2S
2020
-
2021
As a junior engineer, my focus was on learning the company's complex systems and contributing to the maintenance and development of .NET and React/Angular applications. I quickly learned to work with a diverse tech stack including Oracle, Redis, and RabbitMQ.
Achievements:
• Successfully resolved over 100 bugs and support tickets across multiple applications, improving system stability.
• Assisted in the development of new features by collaborating with senior engineers, consistently delivering high-quality code.
• Promoted to Mid-Level Engineer in one year due to rapid technical growth and consistent performance.
Education
Project Management at
Santa Cecília University
2021
-
2021
Information Systems at
Católica de Santos University
2014
-
2018