Will (Guillermo) Orrantia
Solution Architect
Experience
Solution Architect
Stuttgart Police Authority
Designed a migration strategy for WLS applications to the BKA cloud and Stack IT
Created a hybrid cloud for internal testing and development with Kubernetes
Transformed the IT landscape from an outdated monolithic architecture to a cloud-based architecture
Embedded new CI/CD processes using Azure Pipelines
Quadrupled the throughput of personal security checks processing
Migrated personal security check applications to Docker-based applications
Implemented CI/deploy pipelines using Azure DevOps
Environment: Java Springboot, Kubernetes, Oracle WebLogic, OpenID, Camunda, JUnit, TOGAF
Solution Architect
Theben Haigerloch
Automated data transfer processes
Created new API interfaces for CRM and ERP systems
Implemented a secure data transfer solution between networks using Kafka
Integrated new artifacts, data objects, and processes into the IT landscape
Reduced customer order processing time from about 3 weeks to a few days
Environment: Java Springboot, Docker, Kubernetes, Kafka, Camunda, TOGAF
IT Consultant
Federal Printing Office Berlin
Converted and reengineered connected microapps
Migrated data and validated schemas of Java microapps
Authenticated portal users via PKI and Keycloak processes
Automated authentication API tests with JUnit and Cucumber
Migrated all microapps from Oracle to PostgreSQL databases
Optimized GitLab pipelines and created new processes
Environment: Kubernetes, Java, GitLab, Bash, Helm, JUnit, Kibana, Liquibase, Kustomize
IT Consultant
Federal Office for Migration Nuremberg
Extended previous reporting and update processes for personal data
Introduced user authorization via PGP/PKI encryption
Developed a new web service retry mechanism in the OSB pipeline
Performed gap analysis of business process functions in the IT landscape
Improved outdated personal data update processes
Integrated new application deployment processes
Environment: JDeveloper, Java, Oracle Service Bus, BPEL, SOAP web services, WebLogic, PKI
Solution Architect/Developer
Deutsche Bahn Frankfurt
Integrated new processes on OpenShift clusters and introduced a new security model in the IT landscape
Implemented event tracing and external interface connections with Java delegates
Connected backend services using Swagger UI
Implemented a new Camunda-based application for station access recording
Environment: Eclipse, Java, Springboot, Camunda, DMN, Camel, OpenAPI
Solution Developer/Architect
IBM Böblingen
Development of a new NoSQL database solution for packages, snapshots, and transformation rules
Creation of Liquibase scripts to implement new RDBMS data structures
Implementation of test plans with JUnit
API services for signing and releasing RPM binaries using PGP encryption
Implementation of new REST API applications for service support in Docker-based Spring Boot applications
Environment: Eclipse, OpenShift, Java Spring Boot, Liquibase, Ansible, Cloudant, Jenkins, JUnit
API Developer
Schwarz IT Neckarsulm
Development of container-based (Docker) Spring Boot API applications
Implementation of supplier contract processes using Camunda composites
Creation of multistage Docker containers and implementation of Azure pipelines
Database schema coordination for Lidl Big Data Lake with Liquibase Java micro apps
Setup of a new OpenShift cluster with all required applications for the API
Environment: OpenShift, Java, Azure DevOps, Docker, Liquibase, Kibana, Kustomize
Solution Architect
Raiffeisen Bank St. Gallen, Schweiz
EDI data transfer and router mapping for document reception
Approval and validation of orders through BPM processes
Design and implementation of an internal API hub using REST interface
Introduction of a new Kubernetes-based data transfer application
Environment: Kubernetes, Java, Seeburger BIS, Camunda
Solution Architect
Würth Stuttgart
Development of API endpoints for price inquiries, availability checks, and orders for external partners
Implementation of API interfaces
Creation of order and purchase documents using Jasper Reports
Setup of a new OpenShift cluster API for external partners
Environment: Eclipse, OpenShift, Java, Spring, Camel, Seeburger BIS
Cloud Architect
Allianz Stuttgart
Development of a new IT landscape architecture for migrating legacy applications to the AWS cloud
Conversion of JCL jobs to Bash/Cron jobs
Porting Cobol programs to Java
Implementation of monitoring using Java-based APIs and Prometheus
Setup of a private AWS cloud with OpenShift clusters and Java applications
Environment: Eclipse, OpenShift, AWS, Java Spring Boot, Terraform, CloudFormation
Solution Architect
Rhaetian Railway, Chur, Switzerland
Interface design for CAD document transfer
Migration of OSB composites to Apache Camel/Spring Boot applications
Database version control and validation using Liquibase MicroApps
Implementation of embedded human workflows for document processing and modification
Provision of a Swagger-based user interface for API management
Deployment of a new OpenShift cluster with enhanced APIs
Environment: Eclipse, Oracle OSB, Apache Camel, OpenShift, Liquibase
Solution Architect
Federal Office for Migration, Nuremberg
Implementation of a Coherence data grid cache
Interface creation between big data warehouse and data grid storage
Design of REST microservices for data transfer interfaces
Authentication concept based on OIM and Java Spring
Introduction of a new middleware layer for capturing and storing biometric asylum seeker data
Environment: Eclipse, Oracle Cloud, Oracle Coherence, Spring Cloud, Spring Security, REST/JSON microservices, Camel
Technical Solution Architect
Carglass, Cologne
Security and exception handling process design
Design, implementation, and testing of SOA composites
Setup of the development environment and configuration of adapters
Integration between Oracle EBS 12 and a third-party negotiation application
Environment: Oracle SOA Suite 11g, Oracle EBS 12
Technical Solution Architect
Ascena Retail Group Columbus, OH
Development of training programs for integrating new inventory applications
Design of web services and SLAs for external consumer applications
Data view configuration and design of a new canonical data model
Provision of interfaces for third-party applications
Environment: Eclipse, Oracle SOA Suite 11g, Spring
Technical Lead
CoverOregon, Portland, OR
Design and implementation of the enrollment suite
Development, testing, and deployment of health carrier interfaces
Design and implementation of artifact encryption/decryption processes
Design of endpoint security procedures and governance integration
Setup of an external partner portal interface system
Environment: Eclipse, Oracle SOA Suite 11g, Jenkins, OPA, OID, OAM, Spring Beans, Java Web Services
Technical Lead
Oregon Health Exchange Salem, OR
Designed interfaces between WebCenter Portal and external healthcare providers
Process design for security and exception handling
Setup of B2B partner agreements and document exchange
Architecture design for connectivity in the federal hub
Created a strategy and roadmap for the external partner portal
Environment: Eclipse, Oracle SOA Suite 11g, Oracle B2B, Spring Beans, Java Web Services, WebLogic
Enterprise Architect
American Airlines Dallas, TX
Requirements gathering and analysis for flight initialization and lifecycle
Designed interfaces between passenger reservation system and Flight Operation/Control System
Conducted gap analysis and implemented BPM ISA
Planned SOA roadmap and implementation including canonical data model
Built a new application landscape for flight initialization and FOS
Environment: Oracle SOA Suite 11g, igniteXML, IBM Process Server, DataPower
SOA Developer
Qualcomm San Diego, CA
Developed middle-tier services with OSB
Connected legacy applications via REST services
Automated API testing with JUnit
Implemented web services using Coherence and JAX-WS
Environment: Oracle SOA Suite 11g, WebLogic, Ant, Oracle Coherence, Java Web Services
SOA Developer
CenterPoint Energy Houston, TX
Converted JCAPS code to SOA Suite using JDeveloper and Spring Context Composites
Developed EDI-to-XML document interfaces via B2B and Spring Beans
Implemented B2B partner agreements and document exchange
Integrated EBS R12 with SOA Gateway for incoming invoices
Environment: Oracle SOA Suite 11g, WebLogic, Ant, B2B, EBS R12
IT Technical Consultant
Edgen Murray Boca Raton, LA
Analyzed data gaps, business processes, and enterprise architecture
Designed architecture for workflow-based data collection system for high availability
Identified and documented BPM intake processes
Environment: Oracle BPEL, Oracle EBS R11, BPM
SOA Architect
US Steel Pittsburgh, PA
Designing AP interfaces to EBS
Implementing token-based security with SAML, SSO and LDAP
Integrating the SOA Gateway with SOA Suite for concept validation
Environment: Oracle SOA Suite 11g, Oracle WebLogic 10.3, Oracle EBS R12, OIM
SOA Developer/Architect
CCC IS Chicago, IL
Resolving timeout issues in production between OWSM and ESB
Designing reprocessing processes
Designing the architecture for the new Geico interface
Environment: Oracle SOA Suite 10g, Oracle B2B
SOA Architect
CoServ Corinth, TX
Conducting health checks for integration projects
Developing roadmaps and strategies for upcoming projects
Developing BPM-based electronic service order systems
Implementing SOA Suite maintenance plans and dehydration cleanups
Monitoring health and performance using BAM
Environment: Eclipse, Oracle SOA Suite 11g, BAM, Oracle Service 10.3, WebLogic
SOA Architect/Developer
LCRA Austin, TX
Integrating PeopleSoft 9 with Maximo 7 Financials for purchase orders, personnel, memberships, purchase requisitions, vouchers, invoices, receipts, work orders, and chart of accounts
Data structure gap analysis and business process documentation
Designing, implementing, and deploying BPEL processes
Continuous testing and system integration
Migrating BPEL processes from 10g to 11g
Introducing new interfaces via Oracle SOA Suite
Environment: Eclipse, Oracle SOA Suite, WebLogic, IBM DB2, OIM, OID, OAM
IT Consultant
Physician Capital Group Houston, TX
Designing BAM data models, dashboards, and report implementations
Developing BPEL processes for data capture and XML transformations
Environment: Oracle SOA Suite 10g, BAM
IT Consultant
Lifelock Tempe, AZ
Development of BPEL/OSB processes for main orchestration
Design of bulk enrollment strategies
Exception handling strategies with human workflow and business rules
Implementation of an integration interface to Salesforce
Introduction of a new bulk enrollment process
Environment: Oracle SOA Suite 10g, Oracle Service Bus, WebLogic
SOA Developer/Architect
Ethan Allen Danbury, CT
Analysis of data gaps and business processes using BPM tools
Implementation of an automatic inventory update process using Oracle Service Bus
Creation of a BPEL process repository for order fulfillment processes
Development of a new Oracle SOA Suite-based interface between the customer portal and JD Edwards ERP
Environment: Oracle SOA Suite, Oracle Database, BPEL, WebLogic, IBM DB2
Project Manager, SOA Architect
Cargill/Zucarmex Navolato, Mexico
Gathering requirements and designing training programs
Aligning the IT landscape with the business model
Migrating a homegrown ERP system to Oracle EBS (general ledger, accounts payable, accounts receivable, HR, financial reporting)
Implementing Subversion repositories via a WebDAV server
Converting legacy modules to MVC standards using Oracle ADF, JDeveloper 10.1.3.4, and JSF
Transitioning monolithic applications to a loosely coupled architecture
Embedding SOA-based APIs and web services
Optimizing applications through a new IT architecture
Environment: Eclipse, Oracle SOA Suite, BPM, TOGAF
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Government and Administration, Retail, Manufacturing, Insurance, Healthcare, and Utilities.
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Product Development, Supply Chain Management, Project Management, and Strategy.
Summary
I have built a strong profile as a solution architect with extensive experience in transforming IT landscapes across various sectors, including government, transportation, banking, and healthcare. I design clear migration strategies, modern cloud architectures, and secure APIs that deliver tangible improvements such as increased throughput and reduced processing times.
My work spans diverse technologies like Java Springboot, Kubernetes, Docker, and various CI/CD tools. I am known for reengineering legacy systems, integrating modern security, and returning measurable benefits through efficient digital transformations.
Skills
Digital Process Control
Technical Project Lead – Implementing Business Processes From An Integration Perspective
Technical Lead / Analyst – Designing/adapting Processes Using Bpmn
Soa Developer / Architect
Solution Architect – Transforming Legacy Applications
Converting Monolithic Applications To Object-oriented Architecture
Optimizing Legacy Business Processes By Embedding New Technologies
Enterprise Architecture
Developing Cloud Landscapes, Transforming And Adapting Applications
Creating And Analyzing Togaf Diagrams/models
Business Process Optimization/redesign
Soa/cloud Architect
Developing It Landscapes, Embedding New Architectures/technologies, Conducting Impact Analysis
Developing Scalable And Secure Cloud Foundations
Microservices
Developing And Implementing Java Microservices/web Services With Rest Or Soap Interfaces
Supporting Openapi And Swagger
Containerized Applications
Integrating Multistage Containerized Applications With Docker/podman
Preparing Helm Script Implementation For Services, Images, And Ingress Routing
Application Security
User Authentication Via Oidc/openid And Jwt Tokens
Authorization Security Via Oauth2
Implementing Sso Practices With Saml/tokens
Devops Practices
Developing Ansible, Azure, And Gitlab Pipeline Scripts
Building Cloud Component Infrastructure With Terraform Scripts
Implementing Jenkins Scripts For Application Deployment
Creating Helm Charts For Kubernetes/openshift Clusters
Big Data Middleware
Electronic Document Processing On Big Data Platforms
Developing Document And Data Architectures With Sql/nosql Database Systems
Kubernetes Cloud Applications
Developing And Implementing New Kubernetes Ecosystems
Monitoring Kubernetes Clusters And Cloud Applications With Kibana And Rancher
Test Automation
Creating Test Plans With Junit, Cucumber, And Pipelines
Implementing End-to-end Tests With Mockito Support
Jdeveloper
Sql Developer
Eclipse
Java 21 Se/j2ee
Spring/springboot
Docker
Podman
Maven
Gradle
Rhel 9
Ubuntu 22
Oracle Rdbms Database
Mongodb
Apache Hadoop
Jira
Twiki
Confluence
Alfresco
Aws
Azure
Stackit
Apache Camel
Apache Kafka
Camunda
Kubernetes
Glassfish
Weblogic
Jboss/wildfly
Languages
Education
University of Arizona
Master of Science, focus on optimal discrete control · Electrical Engineering and Information Technology · Tucson, United States
Certifications & licenses
ArchiMate® and the use of MID Innovator
MID GmbH · Stuttgart, Germany
Oracle SOA Suite 12c Certified
Oracle University · Munich, Germany
Statistics
Experience
Expertise
Qualifications
Profile
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