Java Developer Team Leader

Luis Diaz-Sendel

ad5uyt@r.postjobfree.com 203-***-****

Summary

Experienced Java Developer familiar with leading, design, development according to specifications & maintenance of large-scale web applications.

Excellent problem-solving skills with an aptitude for learning and implementing emerging technologies.

I am a passionate Developer who likes to work with open-source technologies to solve any kind of problem.

Working with globally distributed teams, Ability, Coordinate, and report status to other members of the team (Business System Analysts, QA and stakeholders), Functioned as a Team Leader for 4-8 Team members in different locations.

Led cross-functional teams in the successful delivery of complex software projects.

Managed project timelines, budgets, and resources to ensure on-time and within-budget completion.

Skills

15+ years with Core Java and JavaJ2EE (EJB, Servlets, JSP, JSF), multithreaded programming, Scala, Akka Actor System, Functional Programming, JavaScript, and Python.

Familiar with Agile Methodologies, Object-Oriented Analysis and Design (OOAD).

Expert understanding Object-Oriented Analysis and Design (OOAD) Object Relational Mapping (O/R) with JPA, (Hibernate or Eclipse link).

Database Design & Modeling: Extensive experience working with complex data models, Oracle PL/SQL, Oracle RDBMS, MS SQL, Mongo DB, Cassandra, AWS DynamoDB & RDS & Aurora.

Experience working with Containers Docker with Kubernetes.

AWS: AWS EC2, S3, AWS ELB, Lambda, CloudFormation

Implementation with Open Source & Structured Frameworks as: Spring (Core, Boot, MVC, Data, Integration, Security, Batch), Apache ODE (BPEL), Service Mix as Enterprise Service Bus, Enterprise Integration Patterns, MULE, FUSE, Camel. JMS, Rabbit MQ, Elastic Search, Amazon Web Services & Google Cloud, Google, JUnit, Selenium for regression automation.

Comfortable on a Linux Server operating system, command line and Bash shell

Experience in developing web application using JavaScript frameworks (React.js, jQuery, Node.js)

API Development, Web Services and Integration Restful, SOA, JSON, XML. (JAXP, JAVA-WS, JWT, OAUTH 2, Axis2), XPath and XML Schema.

CI & TRACKING: Maven, JIRA, Confluence, Jenkins, Bamboo, Hudson, Nexus, Archive, GitHub, Puppet.

IDE Tools: IntelliJ, Eclipse, Rational developer. Profilers: Yourkit, JRebel, JMeter, Grafana.

Experience Administering Web an Application Servers: as WebLogic, Jboss, WebSphere, Nginx, Apache HTTP, Tomcat.

EMPLOYMENT HISTORY

Sapiens Bethlehem, Pennsylvania April 2019 – Current

Senior Java Developer

Technical analyst for different businesses such as medical malpractice insurer and homeowners’ insurance, auto, life.

Claims pro is rules-driven workflow and automated claim assignment, driving straight-through processing and providing supervisory insights and control over claims operations Automated workload balancing.

Manage Event rules using Drools Engine to create Business rules.

The Application is hosted with Amazon Web Services (AWS) on a Linux Platform, Divided in Three major layers on the front end we use ZUL Framework, and we use Jboss for the backend and middle tier.

Designed and implemented technical architectures to support efficient and scalable software solutions for claims pro, integration with different systems like Policy integration, Financial and Data analytics, Government reporting, Iso integration, document integration with Ghostdraft.

Moving to Microservices Architecture Kubernetes or Fargate, Eureka, Spring Gateway, Sprong Cloud, Spring Boot.

Java 17/J2EE, Jboss, JSP, Hibernate JPA, Oracle DB, Mongo DB, ORACLE, DB2, AWS EC2, AZURE Identity management, Junit, JReport, Intelij, AWS EC2, S3, AWS ELB, Lambda, CloudFormation, RDS, Autora, GitHub, Soap, Rest, Swagger, Rabbit MQ, Mule, Drools as rule engine, Ghostdraft as Document integration, Spring Boot, Spring Cloud, Zookeeper, Eureka, Spring Gateway, Kubernetes,,Spring Batch, Drools, Jenkins.

Bottomline Technologies Wilton, CT September 2016 - March 2019

Principal Software Engineer

Working on a SaaS-based lead solution Legal-X that controls legal spend, orchestrating and validating and analyzing legal spend invoice billing workflows.

Work on full lifecycle software development using Agile Methodologies: planning, implementation, testing, documentation, release, and product support. working in cross -functional teams, under the guidance of the Software Architect, hands-on developer, and a development lead.

changing all the authorization and authentication of the whole legal spend management application, adding special visual tagging on the main page of legal spend,

making different financial reports and also changing the approval work flows and creating external interfaces for different clients.

Java/J2EE, WebLogic JSF, JSP, Hibernate JPA, Oracle, OBIEE, Elastic Search, MINIO, Kubernetes, F5, Node.JS, Power Mock, JUnit, JReport, Eclipse Link, AWS for AI GIT, Soap, Rest, Swagger.

Tools: JIRA, Confluence, Jira Agile, Bambo, Grafana, Kibana, Veracode, Sonar Kube, Quarkus, Kubernetes.

Chubb Specialty Insurance Simsbury, CT Jan 2015– August 2016

Senior Java Developer

In charge of Developing New Web API’s to add coverage for an existing policy. Following a Traditional Systems Development Life Cycle; Gathering requirements to the implementation.

In charge to Enhance and maintaining the Following J2EE Applications: (Java/J2EE WebSphere Oracle and Informix,DB2)

Scoring engine that interacts with different web Services as Experian, DMM, Geolytics.

Rating Systems interacting with Blaze Advisor for actuary Model.

Brandshop (SureSource) Shelton CT Feb. 2013 – Jan 2015

Senior Java Developer

PCI compliant end-to-end ecommerce platform clients include over 80 leading companies, Stores, 1000+ concurrent users in our peak time with recognized leading Brands such as Casio, Coca-Cola, Crayola, Hershey's, Cuisinart. etc.

Design and Develop and Support the Webstore Platform (70% development and 30% production support)

J2EE based web application using, Java/J2EE, JBoss Seam JSF, using Hibernate JPA, MySQL, JQUERY, HTML5, CSS3, JUnit, JSP, Linux

Also create Webservices and Backend store admin using Play Framework in Java.

We enable our font end to use JavaScript Json services clients, migrate from Seam 2 to 3, Jboss 3 to 5, we remove the JBoss dependencies for different Services like our cache layer etc.

Develop our stores to use the best Practices for SEO optimization.

Integrate our store with mayor providers for social media (Facebook, Pinterest, Twitter), Shipping Services (Free Shipping, Shop runner), Product Recommendation Services, Promotional services (inspaq), Google Analytics, payment Services (Paypal), Recurring Payment and Subscription Services (Order grove), Commission Junction, Affiliate Marketing Network (Share a Sell), email marketing (Silver Pop)

Design and Develop JSON Rest Service Platform for the Organization, this platform is based on Spring Boot, Spring Data, Spring MVC, Rabbit MQ and Hibernate we create different Services like:

-Taxonomy JSON Service, we make this service to help Categorize an associate Batteries with different brands and products, and provide information including technical specifications

-Process Service, this service integrates our web store with external product warehouses, allowing our customers to customize their products on demand and reduce our inventory.

Design and Develop our Search engine Platform using Elastic Search to find product and Categories in our web stores, we integrate it with our CMS System and integration with our inventory system.

Design and develop a custom Checkout API, using JSON for customers that wanted to host their own Stores but making us do the checkout/Credit Card Processing.

Tools: Seam, Maven, Git Repository, MySQL, Hibernate, Spring Boot, REST, JSON, Spring Web services, Spring MVC, Multithreading, JSF, Elastic Seach, Guava, Google JSON API, Rabbit MQ.

NCR Netkey East Heaven CT Jan. 2011 – Jan 2013

Java Developer

As a Senior for a commercial product for Digital Signage and Self-Checkout called Netkey Manager, on the Sass environment we currently had around 10, 000 Kiosk and around 30 customers.

Responsible for migrating the Kiosk and digital Signage product to a new in-house NCR Architecture Spring based product, Using Agile Software Development Methodology, Software releases every 4 months, 2-week Sprint durations.

Media Assets Management Application Developer and second level support for a set of media applications in -charge of

archiving, indexation, transformation, transfer, and search using an in-house java framework built with JMX, EJB and running on top of Jboss. 50% development and 50% production support.

85% of development of new features, 15% maintenance.

Tools: Spring, Maven, Jasper Reports, NCR NEP Framework, Agile Methodology, XML Stream, Spring Web services, Spring MVC, GWT, Multithreading, JBoss, CXF, JQUERY, J2EE, Eclipse, Apache Ivy, Oracle, MySQL, SVN, JMX, JBoss

Previous Experience upon request

With Softtek Integration Systems doing projects for GE and EMC. Feb. 2004 – Dec. 2010

Mid to eventually Senior Java Developer

Education

Universidad Anahuac 2001 Master’s Degree in International Management

Universidad Anahuac 1995 Bachelor’s Degree in Systems Engineering

Certifications

Version Control Meta (2023), Google IT Automation with Python Specialization(2022), Troubleshooting and Debugging Techniques Google (2022), Coursera Google (2022), Architecting with Google Compute Engine Specialization (2021), Machine Learning on Google Cloud Specialization (2019),Functional Programming Principles in Scala (2014), Pragmatic Scala (2016), Introduction to Big Data with Apache Spark (2015),Introduction to Python for Data Science (2016) Mongo DB for Java Developers (2015), Introduction to Mongo Using Mean Stack (2016), Engineering Software as a Service (2014). iOS Development for Creative Entrepreneurs University of California, Irvine Nano degree (Coursera April 25, 2016): Foundations of Objective-C App Development (2015), Networking and Security in iOS Applications (2015),Best Practices for IOS User Interface Design (2016)

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