Marcos A.
Back-end and Systems Engineer

Skills

Node.js

Google Bigquery

Microsoft Sql Server

Java

Javascript

Postgresql

Mysql

Microsoft Azure

Amazon Aws

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Bio

An IT professional possessing over 14 years of industry experience, with a career that began in computer maintenance and evolved into a deep expertise in technology. Specialized in object-oriented programming since 2010, with advanced proficiency in Java and C#. This individual has demonstrated a commitment to continuous skill development and knowledge acquisition, remaining at the forefront of technological advancements. Their professional focus lies in developing innovative and efficient solutions, collaborating with multidisciplinary teams, and employing cutting-edge technology to address complex problems. With a solid history of successfully executed IT projects, their ongoing objective is to apply their extensive skills and knowledge to novel challenges.

Systems Specialist
11/1/2023 - Present

Developed expertise in architecting and deploying applications in cloud environments, particularly leveraging AWS and Microsoft Azure. Demonstrated proficiency in building and maintaining scalable solutions using Kubernetes for container orchestration and Docker for containerization. Showcased skills in developing and managing CI/CD pipelines with Jenkins and GitLab CI/CD for streamlined application deployment. Gained experience in serverless frameworks, notably AWS Lambda, to create event-driven applications. Worked extensively with Terraform for infrastructure as code, enabling efficient provisioning and management of cloud resources. Exhibited strong command over monitoring and logging tools like Prometheus, Grafana, and ELK stack to ensure robust infrastructure health and application performance. Automated configuration management tasks using Ansible, enhancing deployment efficiency and consistency.
Java Developer
5/1/2022 - 11/1/2023

Developed proficiency in Java back-end systems using Ant, Maven, and Spring, as well as .NET Core back-end systems versions 3.1 and 6. Demonstrated expertise in managing infrastructure with Docker, Vagrant, and Rancher. Gained experience with both SQL databases (Oracle, PostgreSQL) and NoSQL databases (MongoDB). Extensively utilized AWS Cloud services including EC2, S3, AmazonMQ, CodeCommit, CodeDeploy, and RDS, along with Azure services like Azure DevOps and Azure Pipeline. Conducted thorough code reviews in both Java and .NET languages. Performed comprehensive security analysis of applications. Actively participated in SCRUM ceremonies to ensure efficient project management and delivery.
Specialist Assessor - Technology
4/1/2022 - 5/1/2022

Developed proficiency in Java through extensive maintenance and development of systems. Utilized frameworks such as Spring Boot, Hibernate, and Struts for backend development. Involved in designing and optimizing databases using MySQL and PostgreSQL, ensuring robust data handling and storage solutions. Employed version control and collaboration tools like Git and GitHub for efficient code management and teamwork. Leveraged tools like Maven and Jenkins for continuous integration and deployment, ensuring seamless and automated build processes. Enhanced systems' performance and scalability through effective troubleshooting and debugging techniques. Gained expertise in RESTful and SOAP web services for seamless communication between different system components. Established rigorous testing protocols using JUnit and Mockito, ensuring high code quality and reliability. Demonstrated strong problem-solving abilities and contributed to system architecture decisions, enhancing overall system efficiency and performance.
Software Engineer
8/1/2021 - 4/1/2022

Developed systems using .NET and .NET Core, showcasing strong expertise in these frameworks. Demonstrated proficiency in SQL databases using SQL Server, as well as NoSQL databases like MongoDB. Gained experience with Big Data technologies, particularly BigQuery. Conducted extensive integrations with cloud platforms, including Azure and AWS, to enhance system capabilities. Focused on the development and maintenance of scalable solutions tailored for internal teams and clients, ensuring seamless integration of new solutions into existing internal systems.
Support Analyst
3/1/2021 - 8/1/2021

Excelled in computer and network maintenance, ensuring optimal performance and minimal downtime. Gained expertise in network monitoring using Zabbix, effectively identifying and resolving issues before they impact operations. Utilized ticket management tools like OTRS for organized and efficient handling of technical support requests. Demonstrated proficiency in structured cabling, contributing to the reliable and scalable network infrastructure. Provided both on-site and remote technical support, assisting users with technical issues and maintaining high levels of user satisfaction.
Network Installation and Maintenance Technician
3/1/2020 - 3/1/2021

Gained expertise in the installation and maintenance of Hybrid Fiber-Coaxial (HFC) networks, specifically within coaxial models. Delivered comprehensive on-site technical support, ensuring seamless operation and user satisfaction. Proficiency in diagnosing and addressing network issues, contributed to maintaining high levels of service reliability.
Owner and Technical Manager
10/1/2015 - 1/1/2020

Played a key role in the development and installation of renewable energy projects, specializing in solar and wind energy systems. Demonstrated technical expertise in photovoltaic (PV) technology, inverters, and energy storage solutions. Utilized industry-leading tools such as AutoCAD for designing system layouts and PVsyst for performance simulations. Gained proficiency in electrical system design, including grid-tied and off-grid configurations. Implemented SCADA (Supervisory Control and Data Acquisition) systems for real-time monitoring and control. Ensured compliance with NEC (National Electrical Code) and other regulatory standards. Managed project timelines, budgets, and resources using project management software such as Microsoft Project and Primavera P6. Collaborated with cross-functional teams including civil engineers, electrical engineers, and project managers to deliver projects on time and within budget. Developed and adhered to maintenance protocols to ensure system longevity and efficiency. Conducted site assessments and feasibility studies to optimize system performance and cost-effectiveness.
Programmer
7/1/2012 - 8/1/2014

Excelled in the development and support of systems for variable data printing. Gained expertise in programming languages such as Java and C#. Specialized in using printing frameworks like PrintShop Mail and PlanetPress. Managed databases utilizing SQL and PostgreSQL for efficient data handling. Implemented and maintained code repositories using Git, fostering collaborative development. Developed automation scripts with Python to enhance operational efficiency. Conducted rigorous testing and debugging to ensure high-quality deliverables. Utilized Agile methodologies to manage project timelines and deliverables effectively.
Graphic Designer
12/1/2009 - 8/1/2011

Developed proficiency in layout creation, specializing in the design of advertising materials including banners, signs, plates, and showcases. Utilized industry-standard software and tools for graphic design to produce high-quality printed materials. Demonstrated expertise in the execution of print production processes, ensuring adherence to brand guidelines and client specifications. Employed various printing techniques to achieve optimal results in color accuracy and material durability.

Analysis and Development of Systems at IESB
2020 - 2023
Object-Oriented Java Programming at Serviço Nacional de Aprendizagem Comercial ES (National Commercial Training Service ES)
2010 - 2011