Will (Guillermo) Orrantia
Solution Architect
Experience
Solution Architect
Stuttgart Police Authority
Designed strategy for migrating WLS applications to BKA Cloud and Stack IT
Created a hybrid cloud for internal testing and development with Kubernetes
Transformed the IT landscape from outdated monolithic architecture to cloud-based architecture
Integrated new CI/CD processes using Azure Pipelines
Quadrupled the throughput of personal security checks
Migrated personal security check applications to Docker-based applications
Built CI/Deploy pipelines using Azure DevOps
Environment: Java Springboot, Kubernetes, Oracle Weblogic, OpenID, Camunda, JUnit, TOGAF
Solution Architect
Theben Haigerloch
Automated data transfer processes
Developed new API interfaces for CRM and ERP systems
Implemented a secure data transfer system between networks using Kafka
Integrated new artifacts, data objects, and processes into the IT landscape
Reduced order processing time from about 3 weeks to just a few days
Environment: Java Springboot, Docker, Kubernetes, Kafka, Camunda, TOGAF
IT Consultant
German Federal Printing Office Berlin
Converted and reengineered interconnected micro-apps
Migrated data and schema securing for Java micro-apps
Authenticated portal users through PKI and Keycloak processes
Automated authentication API tests with JUnit and Cucumber
Migrated all micro-apps from Oracle database to PostgreSQL database
Optimized GitLab pipelines and implemented new processes
Environment: Kubernetes, Java, GitLab, Bash, Helm, JUnit, Kibana, Liquibase, Kustomize
IT Consultant
Federal Migration Office Nuremberg
Extended previous reporting and update processes for individuals
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Improved outdated personal data update processes
Embedded new application deployment processes
Environment: JDeveloper, Java, Oracle Service Bus, BPEL, SOAP WebServices, 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 tracking and external interface connections with Java delegates
Connected to backend services via Swagger UI
Implemented a new Camunda-based application for recording station data
Environment: Eclipse, Java, Springboot, Camunda, DMN, Camel, OpenAPI
Solution Developer/Architect
IBM Böblingen
Developed a new NoSQL database solution for packages, snapshots, and transformation rules
Created Liquibase scripts to implement new RDBMS data structures
Implemented test plans with JUnit
API services for signing and releasing RPM binaries using PGP encryption
Implemented new REST API applications for service support in Docker-based Spring Boot apps
Environment: Eclipse, OpenShift, Java Spring Boot, Liquibase, Ansible, Cloudant, Jenkins, JUnit
API Developer
Schwarz IT Neckarsulm
Developed container-based (Docker) Spring Boot API applications
Implemented supplier contract processes using Camunda composites
Created multistage Docker containers and implemented Azure pipelines
Coordinated database schema for the Lidl Big Data Lake with Liquibase Java micro-apps
Set up 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, Switzerland
EDI data transfer and router mapping for document intake
Approval and validation of orders through BPM processes
Designed and implemented an internal API hub using REST interfaces
Introduced a new Kubernetes-based data transfer application
Environment: Kubernetes, Java, Seeburger BIS, Camunda
Solution Architect
Würth Stuttgart
Developed API endpoints for price inquiries, availability checks, and orders for external partners
Implemented the API interfaces
Generated order and purchase documents using Jasper Reports
Built a new OpenShift cluster API for external partners
Environment: Eclipse, OpenShift, Java, Spring, Camel, Seeburger BIS
Cloud Architect
Allianz Stuttgart
Developed a new IT landscape architecture to migrate legacy applications to AWS cloud
Converted JCL jobs to Bash/Cron jobs
Ported Cobol programs to Java
Implemented monitoring using Java-based APIs and Prometheus
Set up 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 from OSB composites to Apache Camel/Spring Boot applications
Database revision control and validation using Liquibase micro-apps
Implementation of embedded human workflows for document processing and adjustment
Provision of a Swagger-based user interface for API management
Introduction of a new OpenShift cluster with extended 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 to capture and store 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 adapter configuration
Integration between Oracle EBS 12 and 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
Designed processes for security and exception handling
Set up B2B partner agreements and document exchange
Designed architecture 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 WebServices, WebLogic
Enterprise Architect
American Airlines Dallas, TX
Gathered and analyzed requirements for flight initialization and lifecycle
Designed interfaces between passenger reservation system and Flight Operation/Control System
Performed gap analyses and implemented BPM ISA
Planned the SOA roadmap and implementation including a 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 WebServices
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 a workflow-based data collection system with high availability
Identified and documented BPM intake processes
Environment: Oracle BPEL, Oracle EBS R11, BPM
SOA Architect
US Steel Pittsburgh, PA
Design of AP interfaces to EBS
Implementation of token-based security with SAML, SSO, and LDAP
Integration of SOA Gateway with SOA Suite for concept reviews
Environment: Oracle SOA Suite 11g, Oracle WebLogic 10.3, Oracle EBS R12, OIM
SOA Developer/Architect
CCC IS Chicago, IL
Resolved timeout issues in production between OWSM and ESB
Designed reprocessing workflows
Architecture design for new Geico interface
Environment: Oracle SOA Suite 10g, Oracle B2B
SOA Architect
CoServ Corinth, TX
Performed health checks for integration projects
Developed roadmaps and strategies for upcoming projects
Created BPM-based electronic service order systems
Implemented SOA Suite management plans and dehydration cleanups
Monitored health and performance using BAM
Environment: Eclipse, Oracle SOA Suite 11g, BAM, Oracle Service 10.3, WebLogic
SOA Architect/Developer
LCRA Austin, TX
Integrated PeopleSoft 9 with Maximo 7 Financials for PO, personnel, memberships, PR, vouchers, invoices, receipts, work orders, and chart of accounts
Analyzed data structure gaps and documented business processes
Designed, implemented, and deployed BPEL processes
Performed continuous testing and system integration
Migrated BPEL processes from 10g to 11g
Introduced new interfaces via Oracle SOA Suite
Environment: Eclipse, Oracle SOA Suite, WebLogic, IBM DB2, OIM, OID, OAM
IT Consultant
Physician Capital Group Houston, TX
Designed BAM data structures, dashboards, and report implementations
Developed BPEL processes for data collection 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 automated inventory update process with Oracle Service Bus
Creation of a BPEL process repository for order fulfillment processes
Setup 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
Migration of a homegrown ERP system to Oracle EBS (general ledger, accounts payable, accounts receivable, HR, financial reporting)
Implementation of Subversion repositories via WebDAV server
Converting legacy modules to MVC standards with Oracle ADF, JDeveloper 10.1.3.4, and JSF
Switching 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
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Government and Administration (6 years), Retail (3 years), Manufacturing (2.5 years), Insurance (2 years), Healthcare (2 years), and Utilities (1.5 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (17.5 years), Operations (2 years), Product Development (2 years), Supply Chain Management (1.5 years), Project Management (1.5 years), and Strategy (0.5 years).
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 Manager – 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, Application Transformation, And Customization
Creating And Analyzing Togaf Diagrams/models
Business Process Optimization/redesign
Soa/cloud Architect
Developing It Landscapes, Integrating New Architecture/technologies, And Assessing Impact
Developing Scalable And Secure Cloud Foundations
Microservices
Designing And Implementing Java Microservices/web Services With Rest Or Soap Interfaces
Supporting Open Api And Swagger
Container Applications
Developing Multistage Containerized Applications With Docker/podman
Deploying Services, Images, And Routers In Preparation For Helm Script Implementation
Application Security
User Authentication Via Oidc/openid, Jwt Tokens
Security Authorization Via Oauth2
Implementing Sso Practices With Saml/tokens
Devops Operations
Developing Ansible/azure/gitlab Pipeline Scripts
Provisioning Cloud Component Infrastructure Using 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
Document And Data Architecture Design With Sql/nosql Databases
Kubernetes Cloud Applications
Designing And Implementing New Kubernetes Ecosystem
Monitoring Kubernetes Clusters And Cloud Applications With Kibana, 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 in 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
Profile
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