Octavio Esquivel Alvarez del Castillo
Backend Engineer (Java, Node.js, Reactive Systems) | Cloud (GCP, AWS, Terraform) | AI/ML Integration | M.Sc. Artificial Intelligence (Studying)
Mexico City
Summary
Senior Backend Engineer with 10+ years of professional experience in software engineering, architecture, and product development, with a strong track record of delivering enterprise-level applications that balance performance, scalability, and reliability. Core expertise includes building robust solutions with Java (Java 8–17), Spring Boot, and microservices architecture, as well as deploying and maintaining systems on cloud platforms such as GCP, AWS, and Azure. Projects delivered have consistently improved throughput, reduced costs, and supported mission-critical operations in finance, retail, logistics, and SaaS domains. I am recognized for my ability to resolve complex backend challenges, from debugging production incidents and optimizing database interactions to improving asynchronous processing and implementing caching strategies. My focus is on writing efficient, maintainable code and ensuring that applications remain stable under high demand. While my main specialization is the Java ecosystem, I am adaptable to new technologies when required. I have experience using Python and PyTorch to integrate AI-driven modules into backend solutions, demonstrating flexibility to extend core systems with emerging tools. This adaptability allows me to combine solid backend engineering with modern approaches, ensuring that applications remain competitive and aligned with evolving business needs. Motivated by challenges, I thrive in environments where reliability, performance, and long-term maintainability are critical to the success of the product.
Overview
19
19
years of professional experience
Work History
Java Developer
TATA Consultancy Services (TCS)
12.2023 - Current
Period: Oct 2024 – Jul 2025
- Designed and delivered solutions on Adobe Experience Manager (AEM) Cloud, integrating Java 11 backend.
- Built and maintained Sling Models and reusable components, enabling modularity and reducing development time for future features.
- Improved customer-facing performance by configuring the Dispatcher and deploying caching strategies.
- Established and monitored GitLab CI/CD pipelines, ensuring consistent quality across releases.
Technologies: Java 11, AEM Cloud, Sling Models, HTL, GitLab CI/CD
Period: Apr 2024 – Sep 2024
- Implemented Java 17 with Apache Camel for XML processing to improve latency and throughput.
- Designed Kafka-based event-driven pipeline for shipment tracking and notifications.
- Automated deployments with Jenkins, reducing release cycles and increasing reliability.
- Participated in product development and debugging, strengthening overall system stability.
Technologies: Java 17, Spring Boot, Apache Kafka, Apache Camel, Jenkins, PostgreSQL
Period: May 2023 – Mar 2024
- Migrated applications from PCF to GCP using Terraform and Spinnaker, optimizing cloud infrastructure.
- Refactored legacy code and fixed asynchronous processing errors to improve stability.
- Ensured data integrity in PostgreSQL/Oracle during migration with validation and rollback strategies.
- Enhanced asynchronous workflows and caching mechanisms to support high-demand usage.
Technologies: Java 11, Spring Boot, Apache Kafka, GCP, Terraform, Spinnaker, PostgreSQL, Oracle
Period: 2025
- Supported short-term development initiatives for transportation and logistics clients.
- Delivered backend enhancements and performance optimizations in Java for regional LATAM accounts.
Technologies: Java, Spring Boot, SQL Databases
Java Developer
Multiplica Talent
09.2022 - 05.2023
- Delivered a SuperApp with Spring Boot/MongoDB, supporting 50k+ MAU with zero downtime.
- Integrated AWS Cognito/S3/CloudWatch, reducing authentication latency by 35%.
- Developed Node.js/TypeScript modules for user interfaces, cutting load times by 28%.
Java Developer
Capgemini
12.2021 - 10.2022
- Built asynchronous services with Solace/MongoDB, raising event throughput by 30%.
- Managed CI/CD with Jenkins/GitLab, lowering deployment failures by 40%.
Java / Node.js Developer
Jaque-Umvel
03.2020 - 12.2021
- Delivered Node.js/Express backend with MariaDB/MongoDB for e-commerce features.
- Built Java Spring Boot microservices on Docker/AWS, enabling scalable multi-tenant deployments.
Java Developer
Intercam (Bank)
03.2016 - 02.2020
- Maintained and evolved JBoss EAP 5.1 services; automated VPN tasks with Quartz; migrated JBoss 3.0.1 to 6 (Spring JDBC/Sybase).
PHP/Java Developer
PROFIT
01.2014 - 03.2016
- TELMEX Lada Links-Carrier: built SOAP/REST services with Spring, configured JBoss/Apache, and developed EJB modules with JMS.
Technology Engineer
Grupo Posadas
05.2009 - 02.2010
- Managed Linux servers, performed performance testing, and configured WebLogic/Maven/Ant for hotel operations systems.
Java Developer
Softnia
03.2009 - 04.2009
- Built batch processing with DAOs/Hibernate; implemented JUnit testing for Multipack’s Orbit logistics project.
Java Developer
Essential Studio, S.A. de C.V.
09.2006 - 09.2007
- Developed insurance and tax systems with JSP/JavaScript, UML, and RUP methodology.
Education
M.Sc. - Artificial Intelligence
Universidad De Los Andes (UnAndes)
09-2026
Bachelor's - Mathematics
Universidad Abierta y a Distancia de México (UnADM)
01.2018
Computational Systems Engineer - undefined
Escuela Superior de Cómputo (IPN)
01.2006
Skills
- Languages: Java, Python, Nodejs, TypeScript, JavaScript, SQL
- Frameworks: Spring Boot, Spring Security, Apache Camel, Hibernate, JPA
- Cloud/DevOps: GCP, AWS, Azure, Docker, Kubernetes, Terraform, Jenkins, GitLab CI/CD
- Databases: PostgreSQL, Oracle, MySQL/MariaDB, MongoDB
- AI/ML: NLP, Sentiment Analysis, Image/Audio Processing, Feature Engineering
- Other: Software Engineering, Software Architecture, Product Development, Debugging, Troubleshooting
Additional Information
- Contributor to open-source Java utilities and ML tooling, with focus on backend-AI integration.
- Passionate about mentoring junior developers and sharing knowledge on best practices in clean code and system design.
- Active learner in AI/ML through workshops, online courses, and academic research; exploring kernels, manifolds, and topological methods for next-gen AI.
Timeline
Java Developer
TATA Consultancy Services (TCS)
12.2023 - Current
Java Developer
Multiplica Talent
09.2022 - 05.2023
Java Developer
Capgemini
12.2021 - 10.2022
Java / Node.js Developer
Jaque-Umvel
03.2020 - 12.2021
Java Developer
Intercam (Bank)
03.2016 - 02.2020
PHP/Java Developer
PROFIT
01.2014 - 03.2016
Technology Engineer
Grupo Posadas
05.2009 - 02.2010
Java Developer
Softnia
03.2009 - 04.2009
Java Developer
Essential Studio, S.A. de C.V.
09.2006 - 09.2007
Bachelor's - Mathematics
Universidad Abierta y a Distancia de México (UnADM)
Computational Systems Engineer - undefined
Escuela Superior de Cómputo (IPN)
M.Sc. - Artificial Intelligence
Universidad De Los Andes (UnAndes)
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