Enterprise engineering · Java · Cloud · AI

I build dependable software that turns real business challenges into lasting value.

Senior Java engineer with more than 15 years creating, coding, designing, modernizing and supporting enterprise platforms across banking, insurance, logistics, telecommunications, retail and global operations.

Explore my experience Start a conversation

0+ years in enterprise software

Java 17 Oracle Certified Professional

$1M high-impact incident exposure

Senior Java & Cloud Engineer

Mexico City · Enterprise Systems

Java 8 · 11 · 17

AWS · Kubernetes

Kafka · SQL · NoSQL

Spring AI · LLM APIs

engineering-profile.sh

$ whoami
Juan Miguel Olguín Salguero

$ focus --current
resilient microservices
cloud-native delivery
production troubleshooting
AI-assisted engineering

$ mindset
ownership + clarity + impact

JAVA◆SPRING BOOT◆MICROSERVICES◆ AWS◆KUBERNETES◆KAFKA◆ SQL◆OBSERVABILITY◆AI INTEGRATION◆ JAVA◆SPRING BOOT◆MICROSERVICES◆ AWS◆KUBERNETES◆KAFKA◆

01 · Profile

Engineering depth with a business-critical mindset.

I build reliable, readable, and maintainable software designed to solve real business challenges. I follow industry best practices, share my experience and technical expertise, foster team collaboration, and help create synergies that deliver meaningful business value.

5–7

Engineers led

Technical leadership, architectural standards and delivery follow-up.

90%+

Quality coverage

SonarQube-oriented engineering supported by JUnit 5 and Mockito.

Global

Operational reach

Support and delivery across APJ, EMEA and AMS business regions.

Production support

Root-cause analysis, logs, SQL diagnostics and stakeholder communication.

02 · Expertise

A technology stack built across generations of enterprise systems.

From Java EE platforms to cloud-native services, with the judgment to connect legacy realities to modern architecture.

{ }

Core engineering

Java & backend systems

Java 8, 11 and 17, Spring Boot, REST APIs, JPA, Hibernate, SOAP web services, GraphQL and enterprise J2EE.

JavaSpring BootRESTJPAGraphQL

☁

Cloud & platform

Cloud-native delivery

AWS S3, DynamoDB, Lambda and EC2 with Docker, Kubernetes, CI/CD and production deployment practices.

AWSDockerKubernetesJenkins

⇄

Distributed architecture

Messaging & integration

Kafka, JMS and RabbitMQ for asynchronous processing, scalable data flow and decoupled service communication.

KafkaJMSRabbitMQSOAP

⌘

Operational excellence

Observability & quality

Splunk log analysis, New Relic monitoring, SonarQube, JUnit 5 and Mockito for dependable releases and diagnosis.

SplunkNew RelicSonarQubeJUnit

▦

Data platforms

SQL & NoSQL

Oracle, SQL Server, MySQL, PostgreSQL, MongoDB and DynamoDB across transactional and flexible data workloads.

OracleSQL ServerPostgreSQLMongoDB

◫

Product interface

Full-stack awareness

React, Angular, TypeScript, Bootstrap, HTML5 and CSS, connecting backend architecture with user-facing delivery.

ReactAngularTypeScriptHTML/CSS

03 · Experience

15+ years of solving real enterprise problems.

A career spanning production support, architecture, technical leadership, modernization and hands-on development. Select any role to flip the card and read the original résumé content.

Jul 2018 — CurrentJava Support · L3

Charles Taylor

Java Support / IT Support Analyst — HP CAMS Operations Team

Production troubleshooting and enterprise Java development across warranty, order-flow and service-obligation systems.

Investigated production data misalignment across APJ, EMEA and AMS using SQL and root-cause analysis.
Handled priority incidents with business impact of up to $1M while maintaining SLA communication.
Developed and supported Spring Boot, REST, SOAP and J2EE services on Linux, Tomcat and cloud-oriented platforms.

Technical scope

JavaSpring BootSQLSOAPLinuxTomcatKafkaDockerKubernetesAWS

CHARLES TAYLOR

JAVA SUPPORT

Tools: Linux Java Frameworks Springboot.

IT Support Analyst — HP | CAMS Operations Team

Supervisor: Ashley Misquith

Investigated and resolved CarePack warranty date misalignment (BOM3) across APJ, EMEA, and AMS regions using SQL queries on production databases (CAMS, CREST_UPDATE).
Performed root cause analysis on order flow issues (BB64/FCAM holds), escalating upstream failures to S4/OSS and HP Innovation teams.
Validated service period discrepancies between CAMS and the HP Obligation Service, coordinating resolution with HP SMEs.
Managed hardware family type code updates in CReST following change management procedures.
Handled high-priority incidents with up to $1M business impact, ensuring SLA-compliant ticket management and stakeholder communication.

Create SOAP Webservices in java. The IDE for development is JDEVELOPER.

Support on existing applications on web application servers level of support 3.

Tools: Eclipse, IntelliJ, Jdeveloper, Azure
Linux Fedora,XSD,Jaxb,Filezilla, VS Code, Jenkins.
Frameworks Springboot.
Unix-Linux for scripts starting servers and debugging log files.

Develop J2EE enterprise applications including servlets jsps and JSF’s. Worked extensively with Tomcat 7 and 9 for deploying and managing Java applications, optimizing server performance and troubleshooting deployment issues.

I have worked with Core Java 6,7,8 and RDBMS like oracle creating queries and tables.

Managed data using both SQL and NoSQL databases to ensure flexibility and scalability in handling diverse data types. Implemented Kafka for streamlining real-time data processing and integration. Enhanced application containerization and orchestration using Docker and Kubernetes, which significantly improved deployment efficiency and scalability. On the AWS platform, I've worked with S3 buckets for efficient data storage, DynamoDB for NoSQL database services, and Lambda functions for serverless computing, which streamlined the development process and optimized resource utilization.

Develop microservices that receive information from the client, and register new policies.

Develop REST API services to perform exchange rates.

Jul 2018 – Current

Jan 2018 — Jul 2018Senior Java Developer

Sherwin-Williams

Java Developer Sr.

Application support and modernization across CRM migration, sales systems, Java microservices and Salesforce integrations.

Executed Talend projects for SugarCRM-to-Salesforce migration and supported Angular/Java applications.
Worked with WebSphere, Docker on macOS, APEX, concurrency patterns and asynchronous messaging.
Applied Kafka and GraphQL to scalable, failure-resilient integration scenarios.

Technical scope

Java 11Spring BootAngularSalesforceWebSphereRabbitMQKafkaGraphQL

Sherwin Williams

Java Developer Sr,

Activities:

Run projects in Talend for migration from Sugar CRM to Salesforce.
Execute Applications for testing changes in configuration for Discounts in the sales system.
Support and maintenance for applications made in Angular 2 and backend with java, using microservices.

WAS Application Server, to extract business logic implemented in servlets into webservices.
WebSphere Application Server using the administration console to create JNDI resources such as jdbc connections, data sources, installation of EAR application files, and monitoring of log files.

Provide support for incidents with salesforce, using Illuminated cloud and APEX classes.
Configuration local environments using Docker in Mac systems.
IDEs: Eclipse, IntelliJ, Illuminated cloud plugin for Salesforce; using MacOs 10.13 High Sierra

Throughout my tenure, I further enhanced my skills in Core Java 11, applying its advanced features to improve application performance and scalability. Additionally, I applied advanced multi-threading and concurrency patterns, including thread pools, futures, and callbacks, to optimize application throughput, reduce latency, and ensure efficient resource utilization under peak workloads. Furthermore, I integrated JMS/RabbitMQ for asynchronous messaging between distributed components, streamlining inter-service communication, improving fault tolerance, and enabling scalable and decoupled system architectures.

Employed Spring Boot for rapid development of microservices, facilitating seamless integration and deployment. Handled data management tasks using both SQL for structured data storage and queries, and NoSQL for unstructured data, optimizing data retrieval and storage processes. Integrated Kafka for efficient real-time data processing, ensuring timely and reliable data flow across systems. Utilized Docker for containerization and Kubernetes for orchestrating containers, greatly improving application deployment and management. In AWS environments, I managed S3 buckets for optimized data storage, DynamoDB for scalable NoSQL database solutions, and Lambda functions for executing code in response to events, enhancing the application's scalability and efficiency.

A key part of my experience includes the implementation of Kafka, which has been instrumental enabling the construction of scalable failure-resilient systems.

Furthermore, I have acquired significant expertise in GraphQL, using it to design and implement efficient APIs that precisely cater to client data requirements,

Jan 2018 – Jul 2018

Feb 2015 — Nov 2017Global Service Center

Ericsson

Global Service Center Developer — Mexico

Developed catalog-management capabilities and REST APIs in a Spring Boot environment with international handover responsibilities.

Owned CRUD functionality using JPA repositories, entities, dependency injection and REST endpoints.
Worked with Gradle, Flyway, Git, Gerrit, SQL Server, Oracle and Linux/Tomcat deployments.
Completed application training and handover activities in Poland and Montreal.

Technical scope

Java 8Spring BootJPARESTGradleFlywayGerritSQL Server

Ericsson

Global Service Center Developer Mexico

Activities:

Develop in Concept Wave(proprietary bpm) functionality for the creation of projects. For this task, I Program all the modifications in Javascript. After programming test locally application and then deploy in a development environment.
Run the script for the creation of the war file.
Publish application in tomcat web application container.
Review log in Linux folder for errors in deployment.

Current JAVA development cycle:
The system is developed in java 1.8.

I’m in charge of the module of catalog management with CRUD operations.
I use JPA repositories to query and to store in the database.
I also define entities and configure them in the Spring boot application in eclipse
Then I expose the functionality with REST API methods programmed by me in eclipse.
Also I use spring-boot as the framework to structure all the applications and have a complete configure environment.
Dependency injection to create services, components, or make repositories available in upper tiers.
Gradle to manage all the libraries and maintain the classpath
Flyway to have versioning of the modifications to the scripts that modify the database.
GIT to push changes in the repository
Gerrit as part of the CI so that my changes can be deployed in QA or Preproduction environment
SQL Server to read data as our main data source (Oracle also).
JSON to create two-way information from and to the Rest API.

Training and Handover of the applications in POLAND & MONTREAL

Hand over to get the knowledge of the system development and business core.

The agenda of the training was:
Analyze the structure of the application
Troubleshooting for incidents in the application and update the ITSM ticket.
How to develop new features.

My role also involved leveraging Core Java 11 to exploit its performance enhancements and new features. I developed and managed Spring Boot-based microservices for more efficient application development and maintenance. Managed complex data structures using both SQL and NoSQL databases, which allowed for versatile data handling and storage solutions. Integrated Kafka for building robust data processing pipelines, facilitating seamless data exchange. Applied Docker for containerizing applications and Kubernetes for efficient container management, significantly enhancing deployment processes. In AWS, I extensively used S3 buckets for data storage, DynamoDB for managing NoSQL databases, and Lambda functions for serverless application scenarios, all of which contributed to a more agile and cost-effective development process.

I have implemented Kafka This has bolstered my capacity to build scalable, high-throughput architectures that maintain resilience against failures.

Additionally, my expertise extends to GraphQL for designing and implementing highly efficient APIs, allowing for precise data retrieval that prevents over and under-fetching.

Feb 2015 – Nov 2017

Dec 2014 — Feb 2015Senior Java Developer

Kuehne + Nagel

Built a Java shipment-addendum flow using FTP, JAXB/XSD transformation, REST, JavaMail, JPA, JBoss/TomEE and Oracle.

Kuehne Nagel

Java Developer Sr.

Activities:
Develop an application to insert addendum in the shipment made all in JAVA
The addendum is extra information that comes from customs.

This information is retrieved by FTP made in java(customs insert it there).
Parsed with JAXB, transformed from XSD to java through a marshall process
Insert this information via a REST API call in this case POST
And notify using JavaMail to data warehouse. And store this information in the log database (using JPA persistence).
The module of incidents created in Grails for L1 support level

server: JBOSS and TomEE
database ORACLE

Dic 2014 – Feb 2015

Dec 2010 — Dec 2014System Architect

Plan Seguro Compañía de Seguros

Architected payment, invoicing, quotation, monitoring, broker communication and corporate portal solutions for the insurance business.

Plan Seguro Compañía de Seguros

System Architect

Develop and create of next modules:

Credit card payment of policies through the Enterprises’ portal
Corporative Intranet, from scratch using Joomla and adding content of corporative branches, and keep them up to date.
Sales of policies and emission report for the sales department.
Electronic invoice management system. Creation and emission of an invoice for customers.
Quotation generation portal according to customer's factors and features.
Corporate directory and agenda with people finder features.
Availability monitoring system for web services and corporate portal installed in windows and Linux boxes.
System to deliver messages to brokers of the sales brokers group, also for managing their data.
Automated publishing of winners in the broker’s sales contests.
Oracle Health Care (OHI) training for usage in the new version of the ERP
Invoices managing system for external provider’s invoices for accountant department.
UML implementation for documentation of the web applications
Documentation that requests the SOLVENCIA 2 federal standard.
Meeting with Oracle providers from Netherlands to prepare all requirements for the new ERP
Registration of insurance agent, created in Grails

Dec 2010 – Dec 2014.

Sep 2009 — Dec 2010Technical Leader

Grupo Financiero Inbursa

Led 5–7 senior Java developers, reviewed architectural standards and delivered banking integrations using JAX-RPC, Hibernate, EXTJS and WebLogic.

Grupo Financiero Inbursa

Technical Leader

As organized in development teams of 5-7 people,
I had the role of Architectural standard reviewer.
Managing 5 to 7 development java Sr. developers giving follow-up of their job.
Ensure that Architectural patterns were fulfilled

Development of web services with JAX-RPC for integration con business credit services within the bank.
XML Hibernate mapping files for DAO tier.
Development of EXTJS apps for the credit UI interface.
Usage of MVC pattern to develop classes for different tiers( HQL if needed).
Tools for development: ECLIPSE. Weblogic 10.3. TOAD. ENTERPRISE ARCHITECT

Sep 2009 – Dec 2010.

Sep 2006 — Sep 2009System Architect

Profuturo-GNP

Defined payroll-system use cases, integrations and UML artifacts while working with WebSphere, LDAP, Crystal Reports, SVN and enterprise Java.

Profuturo-GNP

System Architect

Project: Technological Infrastructure Upgrade (MIT)

Here in this corporation, the business is to manage the found of retired people to make monthly payments through a payroll process into their accounts, also the investment of these founds are included.

Tasks :

Deliver use cases in high-level detail for all the payroll systems for retired people.
LDAP tool configuration for all the companies.
Creation of reports in Crystal Report Server XI.
Deployment in WAS Websphere server, and manage code versions SVN.
WebSphere Application Server using the administration console to create JNDI resources such as jdbc connections, data sources, installation of EAR application files, and monitoring of log files
Also usage of J2EE java mail, JSP, XML, web services, Faces , STRUTS
Delivery of UML artifacts for the definition of functionality for the payroll system.
Integration of the reports in Crystal Reports with its document engine through RMI.
And i had IBM - Requisite PRO training.

Sep 2006 - Sep 2009

Sep 2004 — Sep 2006J2EE Application Developer

Nextel

Implemented provisioning integrations with XML/XSD/JAXB, WebLogic, web services, CORBA, Linux, JAAS and over-the-air mobile service workflows.

Nextel S.A. de C.V.

J2EE Application Developer

Usage of XML, XSD, JAXB, WEBLOGIC, Fuego 5.5 to implement the interface between an automated process that supplies services prepaid for mobile devices and the workflow engine. The JAXB API was implemented as part of the definition of the message interchange protocol using XML.

Webservice to insert requests into the automated process queue.
I had a Weblogic training. Covering j2ee basics.
As an operator in the in infrastructure operation department. Show the content of the log file server looking for exception incidents.
Usage of CORBA, IDL, Javadocs, CVS, SSH.-Implement business rules for the provisioning system that allows have the service up and running. This business applies to prepaid cards (club and RED) for mobile phones. Also, I was involved in making interfaces for the CORBA functionality for the prepaid box engine.
Usage of LINUX Red Hat (fedora) to make deployment of process units where the prepaid system was tested as well as customer care interfaces: club, red. Tx, Unec2, helpdesk.
Authentication, and Authorization with JAAS Weblogic.

Radius Server that holds apps that can be downloaded by mobile phones, to make provisioning OTA(over the air)

Sept 2004 - Sept 2006.

04 · AI-assisted engineering

AI is part of the workflow — not a substitute for engineering judgment.

I use AI from project setup through troubleshooting, implementation and technical communication, always grounded in the real codebase, build output, logs, SOPs and delivery context.

Discuss AI-enabled development →

Claude Code

Project files, refactoring, builds, Git changes, deployment support and ticket troubleshooting.

GitHub Copilot

Implementation assistance and clearer pull-request documentation for reviewers.

ChatGPT

Iterative question-and-answer analysis to challenge assumptions and refine solutions.

Spring AI + LLM APIs

Java integrations using provider API keys from Anthropic and OpenAI.

05 · Credentials

Formal foundations, continuous learning and recognized work.

Education

1998–2001

Master Degree in Computer Sciences

CIC — Computer Research Center, Instituto Politécnico Nacional

Graduate with Honors

1994–1998

Computer Systems Engineer

ESCOM, Instituto Politécnico Nacional

Certifications & awards

Oracle Certified Professional

Java SE 17 Developer

Professional certification

Scrum Fundamentals Certification

Agile and Scrum foundations.

Software Contest Awards

2001: Postgraduate category · Instituto Politécnico Nacional

1998: First place, bachelor’s category · ESCOM IPN

Let’s build what matters

Looking for senior engineering experience that connects architecture, code and production reality?

Let’s talk about Java, cloud platforms, modernization, distributed systems, technical leadership or AI-enabled delivery.

javajmc@gmail.com ↗ juan.canvasoft.com ↗