Willie is available for hire

Willie Jan Altarejos

Verified Expert in Engineering

MuleSoft Developer

Mandaluyong, NCR, Philippines

Toptal member since March 10, 2023

Expertise

Back-end Developers Debugging Integration API Web Development Technical Writing Artificial Intelligence XML REST API HubSpot Development Salesforce Development CRM RPA OKTA ERP Development

Bio

Willie is a seasoned solutions and integrations architect and developer. Skilled in consulting, designing, implementing, and managing solutions, he is deeply interested in enterprise architecture, strategy, integrations, and artificial intelligence. Passionate about helping businesses grow, Willie is committed to delivering exceptional results that meet his client's needs.

Portfolio

Mobius NEXT

Anypoint Studio, MuleSoft Anypoint Platform, MuleSoft, ETL, Informatica, Jira...

Hello to Simplify, LLC

Stripe, Zapier, Squarespace, Subscription Processing, Payment Processing, IT...

Cambaa LLC

Technical Writing, Technical Documentation, CRM Design, AI Design...

Experience

Integration - 14 years
Web Services - 14 years
Consulting - 12 years
MuleSoft Anypoint Platform - 6 years
Anypoint Studio - 6 years
MuleSoft - 5 years
Solution Architecture - 5 years
HubSpot - 4 years

Preferred Environment

Eclipse, IntelliJ IDEA, Visual Studio, Anypoint Studio, n8n, AI Agents, Zapier, HubSpot, MuleSoft Anypoint Platform

The most amazing...

...thing I've done is provide value to the client with a solution I architected, developed, implemented, supported, and ran.

Work Experience

Solutions Architect | Principal Consultant

2021 - PRESENT

Mobius NEXT

Worked for a large Australian university. Attended meetings and gathered information on new project requirements. Conducted proof of concept, MuleSoft, and AWS SQS integration.
Researched and tested existing APIs for the solution fit. Created and maintained integration of high-level design and technical specification documents. Presented and discussed the designs for the integration review board approval.
Made integration designs for several projects, including a parking solution, a customer data platform, and a residential and work request system. Worked on ETL integration design with Informatica.
Created designs and implemented the exam management integration for a consultancy client on a higher ed project. Participated in SIT, UAT, and post-production deployment. Tested post-environment upgrade and implemented revision on additional fields.
Designed and uplifted Mule integrations to version 4, including procurement, locations, transportation concession, special considerations, industry community projects, utility, broadcast, and employee API.
Analyzed and designed a canvas for records management integration for a consultancy client on a higher ed project.
Defined company directions and priorities. Planned, managed, monitored, and financed company initiatives and ventures. Provided technical input, estimates, costing, and resource planning on projects. Worked with company consultants.
Trained and mentored associates. Identified and pursued opportunities. Reached out and established partnerships with vendors and technology partners.
Conducted R&D on generative AI/LLMs (Google Gemini and Claude), AI agents, and workflow automation (n8n), building POCs for email managers, invoice AI agents, and newsletter automations.
Led HubSpot solutions practice, launching new service offerings and developing a solution delivery framework for HubSpot, AI, and mobile app solutions.

Technologies: Anypoint Studio, MuleSoft Anypoint Platform, MuleSoft, ETL, Informatica, Jira, Confluence, Jenkins, SoapUI, Postman, Oracle Database, Web Services, REST, Solution Architecture, Technical Architecture, High-performance Design, Technical Design, Unit Testing, System Integration Testing (SIT), IT Service Management (ITSM), Stakeholder Management, Change Management, XML, APIs, Miro, Enterprise Resource Planning (ERP), Customer Relationship Management (CRM), Data Integration, DataWeave, Git, Data Transformation, HubSpot, Monday.com, Project Discovery, Architecture, Data Visualization, Microsoft Project, Microsoft Excel, Data Strategy, MySQL, SQL Management Studio, Social APIs, Social Media Content, Make (formerly Integromat), HubSpot API, WordPress, PHP, Databases, Enterprise Architecture, API Integration, Integration, Cloud Computing, Consulting, Solution Design, REST APIs, Legacy Code, Landing Pages, API Development, Authentication, Databricks, Zapier, CSV, Python, Bots, WhatsApp, API Architecture, API Testing, API Design, Back-end Architecture, AI Agents, HubSpot CRM, Workflow Automation & System Integration, Data Management, JavaScript, Email Automation, Automation, Cloud, Data Analysis, Funnel Analysis, Sales Funnel, Performance Marketing, Agentic AI, Cursor AI, Claude, Google Cloud Platform (GCP), GitHub, Data Labeling, Data Annotation, HubSpot Marketing Hub, CSS, System Architecture, Typeform, Recurly, B2C, Intuit QuickBooks, Ticket Systems, LinkedIn API, Google Sheets, Actions on Google, QuickBooks API, MuleSoft API, DNS, DNS Configuration, Gmail, Gmail API, Technical Writing, AI Prompts, Retrieval-augmented Generation (RAG), Large Language Models (LLMs), Error Handling, Azure Cosmos DB, Node.js, Technical Documentation, Data Modeling, Machine Learning, SaaS, CRM Design, Zoho CRM, Stripe API, Stripe Checkout, Data Migration, CRM Implementation (Salesforce), CRM Systems, Lawmatics, AI Design, AI Programming, Natural Language Processing (NLP), Prompt Engineering, Software Architecture, Vector Databases, Webflow, Agentic Frameworks, Agentic RAG Systems, Google Calendar, Documentation, Twilio, Microsoft Power Automate, Business Email, IT Consulting, Salesforce REST API, Salesforce, Microsoft Access, Google Workspace, Sales Operations, Requirements Analysis, Business Analysis, Systems Analysis, Product Management, System Integration, CRM APIs, Webhooks, Technical Leadership, IT, Workday Report Design, Workday API, PostgreSQL, Artificial Intelligence (AI), Marketing, RAG Architecture, Data Lakes, Back-end, AI Integration, RAG Systems, Model Context Protocol (MCP), Workflows, LLM Integration, Cloud Infrastructure, Go, Rust, TypeScript, Debugging, AI Model Training, Advisory, CRM, CTO, Fractional CTO, Enterprise Systems, Third-party APIs, Third-party Integration, Product Discovery, Product Development, Troubleshooting, AI Chatbots, Administration, Reporting, Web Development

Stripe Integration Specialist for Billing Date Optimization

2025 - 2026

Hello to Simplify, LLC

Automated monthly billing cycles by integrating Zapier with the Stripe API, shifting 100% of new subscription charges from immediate checkout to a synchronized 1st-of-the-month schedule.
Developed a deferred payment workflow for a Squarespace-hosted site, successfully delaying credit card processing while maintaining secure payment authorizations at the point of sale.
Optimized the subscription pipeline through rigorous testing of API triggers, reducing billing errors and manual intervention by 20% during the transition to the new schedule.

Technologies: Stripe, Zapier, Squarespace, Subscription Processing, Payment Processing, IT, Marketing, Node.js, Back-end, Workflows, Cloud Infrastructure, Debugging, Advisory, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting

Technical Writer

2025 - 2025

Cambaa LLC

Created and edited technical documentation, including architectural diagrams and explanations.
Collaborated with engineering teams to understand technical systems and architecture.
Developed comprehensive and accessible content that communicates complex technical concepts.

Technologies: Technical Writing, Technical Documentation, CRM Design, AI Design, Software Architecture, Documentation, Requirements Analysis, Systems Analysis, System Integration, IT, System Architecture, Debugging, Advisory, Enterprise Systems

Zapier API Developer

2025 - 2025

Story of Self LLC

Developed a custom Zapier integration to connect the Mighty Networks community platform with HubSpot.
Utilized Zapier Tables to create a stable and manageable system for maintaining event and event date data.
Automated subscription management by integrating portal data into HubSpot Static Lists, eliminating manual data entry and reliably triggering processing workflows.

Technologies: Zapier, Mighty Networks, HubSpot, HubSpot API, SaaS, CRM Design, CRM Systems, Requirements Analysis, Systems Analysis, System Integration, Stripe, CRM APIs, Webhooks, IT, Back-end, Workflows, Cloud Infrastructure, Debugging, Advisory, CRM, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting

HubSpot Developer

2025 - 2025

Michael James Remodeling LLC

Optimized HubSpot workflows to ensure all leads from all channels are captured, processed, and assigned correctly.
Implemented enhanced spam protection and security on public forms.
Stopped lead leakage, providing the sales team with a reliable, automated pipeline.

Technologies: HubSpot, JavaScript, CSS, HubSpot Marketing Hub, HubSpot API, HubSpot CRM, SaaS, CRM Design, CRM Systems, Requirements Analysis, Systems Analysis, System Integration, IT, Marketing, Back-end, Workflows, Debugging, Advisory, CRM, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting

Technical Delivery Manager

2024 - 2024

Inchcape Digital

Managed team priorities, leading team leads and members, and communicating with stakeholders.
Oversaw service management as a level two escalation point person, collaborating with team members and market stakeholders.
Led technical leadership to implement team-wide initiatives based on leadership directives.

Technologies: MuleSoft, Apigee, Robotic Process Automation (RPA), Integration, Management, ITIL, Data Visualization, Microsoft Excel, eCommerce, Data Strategy, IT Service Management (ITSM), API Integration, Cloud Computing, Security, XSLT, Change Management, MuleSoft Anypoint Platform, XML, APIs, REST APIs, API Development, IT Project Management, CSV, API Architecture, API Testing, API Design, Back-end Architecture, Automation, Data Analysis, BI Reporting, Google Cloud Platform (GCP), GitHub, Ticket Systems, MuleSoft API, Technical Writing, Error Handling, Technical Documentation, Data Modeling, Data Migration, AI Design, Documentation, Requirements Analysis, Business Analysis, Systems Analysis, Product Management, System Integration, Webhooks, Technical Leadership, IT, Cloud Infrastructure, Debugging, Advisory, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting, Administration, Reporting

Solutions Architect

2023 - 2024

Security Bank Corporation

Worked on overseeing approved solution architecture implementation for four projects: Oracle Financials Remediation, Regulatory Reporting, Qualtrics CSAT Survey, and International Transaction Reporting Systems.
Collaborated with the vendor on the Qualtrics CSAT project, focusing on requirements documentation, functional design creation, and review and approval.
Communicated with the project team and vendor on technical aspects of the implementation, such as API testing, vendor-required infra and accesses, and coordination with other internal teams, such as the Enterprise API Team.

Technologies: Amazon Managed Workflows for Apache Airflow (MWAA), Amazon Web Services (AWS), Solution Architecture, Data Engineering, Financials, API Integration, ETL, Postman, Technical Design, JSON, XML, APIs, Enterprise Resource Planning (ERP), Oracle Financials, Cloud Platforms, Project Discovery, Architecture, Microsoft Excel, Data Strategy, Data Science, Enterprise Architecture, Integration, Cloud Computing, Security, Solution Design, REST APIs, Miro, Legacy Code, API Development, Authentication, IT Project Management, CSV, API Architecture, API Testing, API Design, Back-end Architecture, Data Management, Data Analysis, BI Reporting, GitHub, System Architecture, Ticket Systems, Technical Writing, Error Handling, Technical Documentation, Data Modeling, Machine Learning, AI Design, Software Architecture, Documentation, Salesforce REST API, Salesforce, Requirements Analysis, Business Analysis, Systems Analysis, System Integration, Webhooks, Technical Leadership, IT, Cloud Infrastructure, Debugging, Advisory, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting, Reporting

Technical Architect

2019 - 2021

DXC Technology

Contributed to reviewing and responding to RFPs on over 20 opportunities. Provided technical input, estimates, costing, and resource planning. Attended and participated in the Manila resource planning meeting.
Worked on MuleSoft retail POC for an FMCG, implementing eight RFPs from the accelerator. Provided instructions to two developers, reviewed code, and did actual coding for the template standardization and in the notifications API (SMS and email).
Participated in global application integration services as a MuleSoft capability lead in PH. Worked on innovations workstreams for DXC Manila. Developed proof of concepts for MuleSoft and Azure DevOps, code scanning, Artifactory API, and Common API.
Set up Runtime Fabric POC on DXC CloudHub for RFP demonstration purposes. Presented to the potential client along with the bid team. Explained the approaches to address the RFP asks in MuleSoft DevOps, DevOps tooling, DevOps approach, and practices.
Helped review the AIS delivery methodology by working with an integration architect from India. Worked with counterparts in India for the standard code review and production readiness estimation tool review.
Onboarded as part of the platform team for a manufacturing client. Investigated and provided feedback on Mendix API performance issue, which involves MuleSoft Runtime Fabric on Azure. Set up MuleSoft Runtime Fabric for an automation initiative.
Participated in architecture discussions of MuleSoft Initiatives. Conducted review of use cases, requirements, and specifications provided design suggestions, feasibility review leading to proposals, estimates, and resource plan.
Developed and utilized a MuleSoft integration estimation tool. Worked with SAP Ariba GIS integration as one of the architected solutions. Managed the delivery team in technical inquiries, delivery, and deployment tasks.
Set up and demoed Ansible playbooks for updating RTF and appliance operating system initiatives. Drafted operations architecture for MuleSoft and Azure. Demonstrated code scanning, SAST using SonarQube and GitLab libraries with MuleSoft DevOps.
Participated in the MuleSoft current and future mode of operations consulting for the manufacturing client, drafting a proposal for the DevOps team, including tools, methodology, and practice setup.

Technologies: Anypoint Studio, MuleSoft, MuleSoft Anypoint Platform, DevOps, Azure, Estimations, Sales, Solution Architecture, Technical Architecture, Technical Design, Workday, Workday EIB, Workday Report Design, Web Services, XSLT, JSON, IT Service Management (ITSM), Request for Proposal (RFP), Apache Kafka, APIs, REST APIs, Enterprise Resource Planning (ERP), Salesforce, Data Integration, DataWeave, Git, Data Transformation, Project Discovery, Architecture, Salesforce API, Microsoft Excel, SQL Management Studio, Management, API Integration, Integration, Cloud Computing, Consulting, Solution Design, XML, Legacy Code, API Development, IT Project Management, CSV, API Architecture, API Testing, API Design, Back-end Architecture, HTML, System Architecture, Intuit QuickBooks, Ticket Systems, MuleSoft API, Technical Writing, Error Handling, Technical Documentation, Data Modeling, Data Migration, CRM Systems, AI Design, Software Architecture, Documentation, Requirements Analysis, Systems Analysis, System Integration, CRM APIs, Webhooks, Technical Leadership, IT, Workday API, Back-end, Debugging, Advisory, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting, Administration

Senior Consultant | Team Lead

2018 - 2019

Deloitte (Deloitte Consulting Philippines Delivery Center)

Implemented new APIs and updated existing apps for an insurance client. Performed unit testing via MUnit and functional testing via Postman BDD. Utilized DevOps methodology, Git, Bamboo, Jira, Bitbucket, and Slack notifications.
Acted as an internal admin, monitoring finance and time charges, validating and sending them to clients. Onboarded new hires and caught up with team members, talking about tasks, status, and wellness. Provided performance reviews for team members.
Implemented Workday integrations to the capital management company's systems and MuleSoft. Performed unit testing and end-to-end testing. Updated document deliverables, such as technical design documents, unit testing documents, and build checklists.
Provided feedback and review on MuleSoft integrations for a capital management company. Ensured MuleSoft and Workday integration quality. Developed project and budget integration with Workday and project management system.
Developed reference MuleSoft code messaging and MQ capability for an education client. Set up and utilized ActiveMQ instead of Anypoint MQ for the reference code. Implemented logging and ID conventions.

Technologies: Anypoint Studio, MuleSoft, MuleSoft Anypoint Platform, Anypoint MQ, Unit Testing, Testing, System Integration Testing (SIT), Technical Design, Postman, DevOps, Jira, Confluence, Bitbucket, Jenkins, Slack, Workday, Financials, Web Services, REST, XSLT, IT Service Management (ITSM), XML, APIs, REST APIs, Insurance, Enterprise Resource Planning (ERP), Customer Relationship Management (CRM), Salesforce, Data Integration, DataWeave, Git, Data Transformation, Salesforce API, Microsoft Excel, SQL Management Studio, Management, API Integration, Integration, Consulting, Solution Design, API Development, CSV, API Architecture, API Testing, API Design, Back-end Architecture, GitHub, Ticket Systems, MuleSoft API, Technical Writing, Error Handling, Technical Documentation, Data Modeling, CRM Implementation (Salesforce), CRM Systems, AI Design, Documentation, Salesforce REST API, Requirements Analysis, Telecommunications, Systems Analysis, System Integration, CRM APIs, Webhooks, IT, Workday Report Design, Workday API, Debugging, Advisory, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting

Lead Workday Developer

2017 - 2018

Concentrix (formerly ServiceSource International Philippines)

Implemented, enhanced, and supported Workday integrations. Resolved issues raised by the support ticketing system. Communicated with stakeholders from different functions. Proposed, clarified, and recommended solutions.
Integrated Workday to Litmos learning management system via REST API. Understood and applied recruitment business process and Workday web service equivalent. Defined and implemented integration security. Created and updated existing BIRT reports.
Participated in change management board process. Followed the audit process for SOX compliance. Administered other business applications like Okta and Litmos LMS. Utilized client tooling such as Salesforce as an issue-tracking tool and ITSM.

Technologies: Workday, Workday EIB, Workday Report Design, Workday Implementation, Web Services, XSLT, REST, SoapUI, Postman, Learning Management Systems (LMS), BIRT, Okta, Change Management, IT Service Management (ITSM), Solution Design, Technical Design, XML, JSON, APIs, REST APIs, Enterprise Resource Planning (ERP), Customer Relationship Management (CRM), Data Integration, Data Transformation, Microsoft Excel, Integration, CSV, Data Analysis, Ticket Systems, Technical Writing, Error Handling, Technical Documentation, SaaS, AI Design, Documentation, Salesforce REST API, Requirements Analysis, Systems Analysis, System Integration, Webhooks, IT, Workday API, Back-end, Debugging, Advisory, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting, Administration

Senior HR IT Integrations Expert

2016 - 2017

Unilever

Implemented, enhanced, and supported Workday integrations. Communicated with stakeholders from different functions. Proposed, clarified, and recommended solutions.
Implemented Workday payslip integration. Assessed impacts being brought by updates in integrations.
Tested Workday upgrade. Defined and implemented Workday integration security. Trained in MuleSoft Anypoint development.

Technologies: Workday, Workday EIB, Workday Report Design, Workday Implementation, Web Services, XSLT, MuleSoft, Technical Design, XML, Enterprise Resource Planning (ERP), Data Integration, Data Transformation, Retail & Wholesale, Integration, CSV, Data Analysis, Technical Documentation, SaaS, Documentation, Requirements Analysis, Systems Analysis, System Integration, IT, Workday API, Back-end, Debugging, Advisory, Enterprise Systems, Third-party Integration, Troubleshooting

Workday Integration Consultant

2015 - 2016

KPMG

Continued tasks from carried-over Towers Watson projects (manufacturing and telecommunications client) during the post-KPMG acquisition of the human resources services delivery division.
Designed, developed, tested, and documented deliverable integrations. Communicated with stakeholders. Proposed, clarified, and recommended solutions.
Enhanced a previously developed global payroll integration solution. Interfaced with SAP HCM via SAP infotypes. Utilized SAP infotypes for human capital, payroll, and benefits.
Mapped the SAP infotype file into Workday PECI XML with confirmation from onshore SAP subject matter experts. Defined and implemented Workday integration security.

Technologies: Workday, Workday EIB, Workday Report Design, Workday Implementation, Web Services, XSLT, SAP Infotype, Technical Design, XML, Enterprise Resource Planning (ERP), Data Integration, Data Transformation, Retail & Wholesale, Integration, CSV, Technical Documentation, SaaS, Documentation, Requirements Analysis, Systems Analysis, System Integration, IT, Workday API, Back-end, Debugging, Advisory, Enterprise Systems, Third-party Integration, Troubleshooting

Workday Integration Consultant

2013 - 2015

Willis Towers Watson

Proposed, clarified, and recommended solutions. Developed custom report EIB integrations. Communicated with stakeholders. Distributed workload to other developers. Designed, developed, tested, and documented integrations for a manufacturing client.
Supported, enhanced, and maintained integrations for a telecommunications client. Communicated with stakeholders, proposing, clarifying, and recommending solutions. Defined and implemented Workday integration security.
Designed, developed, tested, and documented delivered integrations for a manufacturing client. Communicated with stakeholders. Proposed, clarified, and recommended solutions. Resolved integration issues and enabled global payroll integration.

Technologies: Workday, Workday EIB, Workday Report Design, Workday Implementation, Web Services, XSLT, Technical Design, Unit Testing, Integration Testing, System Integration Testing (SIT), XML, Enterprise Resource Planning (ERP), Data Integration, Data Transformation, Retail & Wholesale, Integration, CSV, Technical Documentation, SaaS, Documentation, Requirements Analysis, Systems Analysis, System Integration, IT, Workday API, Back-end, Debugging, Advisory, Enterprise Systems, Third-party Integration, Troubleshooting

Integration Developer

2013 - 2013

Macquarie Group

Performed carryover tasks from Vertere as I continued my tenure as a direct employee.
Developed, updated, maintained, supported, and tested for new and existing integration projects.
Supported existing webMethods Integration Platform. Utilized client tooling—Confluence, Jira, and Green Hat Tester.

Technologies: webMethods, SoapUI, Jira, Confluence, Anypoint Studio, XML, Data Integration, Data Transformation, Integration, Requirements Analysis, Systems Analysis, System Integration, IT, Back-end, Debugging, Enterprise Systems, Third-party Integration, Troubleshooting

Middleware Integration Developer

2011 - 2013

Vértere Global Solutions

Supported, developed, updated, maintained, and tested new and existing integration projects for a financial services client. Migrated JBoss and web services layer from JDK 6 to 7.
Developed integrations in IBM Message Broker and data transformation using Java for a consumer business client. Performed unit testing using Mockito and JUnit and utilized DevOps methodology and practices such as Jenkins, Mercurial, and Confluence.
Implemented OSB business and proxy services for a public sector client. Developed transformation and mapping using XQuery. Performed unit and integration testing using SoapUI. Developed integrations with Siebel CRM and Oracle ADF.

Technologies: webMethods, Jira, Confluence, IBM MQ, Unit Testing, JUnit, Jenkins, Mercurial, Oracle Service Bus (OSB), SoapUI, SOAP, Web Services, TortoiseSVN, Technical Design, Anypoint Studio, Data Integration, Data Transformation, SQL Management Studio, Integration, Requirements Analysis, Systems Analysis, System Integration, IT, Back-end, Debugging, Enterprise Systems, Third-party Integration, Troubleshooting

Technical Associate

2008 - 2011

GlobalBridge Resources

Provided technical support to the internal systems of the client in the banking industry.
Developed a utility program for exporting files for credit card transactions.
Made a program for a fund management system that accesses web services.
Built a VB .NET-based client application that displays and layouts data for home and auto loan reporting.

Technologies: Visual Basic .NET (VB.NET), Java, SQL, Apache Tomcat, Crystal Reports, Oracle Database, Web Services, Databases, HTML, BI Reporting, CSS, Requirements Analysis, IT, Debugging, Third-party Integration

Experience

Workday Global Payroll Integration

This Workday Studio integration is designed to process a PICOF payroll file, transform it, and send it to multiple destinations. I initially developed this in 2015 for a manufacturing client and revised 2016 for another client. The revision features the utilization of document tags, which makes routing easier.

Mule 4 Uplift

The higher ed client implemented MuleSoft several years earlier, with APIs developed in the Mule 3 version. The extended end-of-support warranty for Mule 3 version apps will transpire by 2024. There was a need to uplift existing Mule 3 apps into Mule 4.

I was tasked to create designs to uplift the Mule 3 integrations to Mule 4. The APIs in scope are procurement, locations, transportation concession, special considerations, industry and community projects, utility, broadcast, employee API HR, and exam manager. Uplift required analysis of the integrations on the business and technical levels, creating a high-level design, technical design, and development.

I worked on high-level designs and presented them to the integration review board for approval. As for the exam manager, I am also involved as the developer, test support, and further in the 2023 changes, such as integration tests for server upgrades and the addition of ExamType field mapping.

The objective of decommissioning the Mule 3 integrations was met, guaranteeing vendor support for the Mule 4 APIs.

Data Pipeline for Worker and Organization APIs

The pharmaceutical client wanted to develop version 2.0 of its worker and organization APIs. Data would come from Workday, and objects, such as personal information, address, and job for worker API, or cost center, company, location, and supervisory organization for organization API separate its structure.

The data pipeline consists of Workday, AWS S3, Talend, Mongo DB, and MuleSoft. The file extract from Workday (JSON) is stored in AWS S3, processed by Talend, then stored in MongoDB, and retrieved by MuleSoft APIs.

My contribution was developing the Workday integration via Workday Studio, custom reports, and core connectors, performing event and change detection, transforming the XML output into JSON, sending it to AWS S3, scheduling the integrations, and supporting the SIT and UAT.

Education

2023 - 2025

Master's Degree in Information Technology

AMA Computer University - Quezon City

2004 - 2008

Bachelor of Science Degree in Computer Science

Cavite State University - Indang, Cavite, Philippines

2001 - 2003

Coursework in Applied Computer Science

Asian Institute of Computer Studies - Bacoor, Cavite, Philippines

Certifications

FEBRUARY 2026 - FEBRUARY 2029

Generative AI Leader

Google

FEBRUARY 2026 - PRESENT

AI Essentials for Partners

HubSpot

FEBRUARY 2026 - PRESENT

Breeze Essentials for Partners

HubSpot

JUNE 2025 - JUNE 2028

Associate Cloud Engineer

Google

MAY 2025 - MAY 2027

HubSpot Solutions Partner

HubSpot

MAY 2025 - JUNE 2026

Objectives-Based Onboarding

HubSpot

MAY 2025 - JUNE 2026

Service Hub Software

HubSpot

APRIL 2025 - MAY 2026

Platform Consulting

HubSpot

APRIL 2025 - APRIL 2028

Cloud Digital Leader

Google

MARCH 2025 - APRIL 2026

HubSpot Marketing Software Certified

HubSpot

FEBRUARY 2025 - MARCH 2026

HubSpot Sales Software Certified

HubSpot

JANUARY 2025 - FEBRUARY 2026

HubSpot Guided Client Onboarding

HubSpot

JANUARY 2025 - FEBRUARY 2026

HubSpot Growth-Driven Design Agency

HubSpot

DECEMBER 2024 - JANUARY 2026

Integrating With HubSpot I: Foundations

HubSpot

DECEMBER 2024 - JANUARY 2026

HubSpot Solutions Architecture Foundations

HubSpot

APRIL 2024 - MAY 2026

HubSpot Inboud Marketing

HubSpot

SEPTEMBER 2023 - AUGUST 2026

Certified in Cybersecurity

ISC2

JANUARY 2023 - JANUARY 2024

AZ-104: Azure Administrator Associate

Microsoft

JANUARY 2023 - JANUARY 2024

AZ-400: Microsoft Azure DevOps Engineer Expert

Microsoft

OCTOBER 2022 - OCTOBER 2023

DP-100: Microsoft Azure Data Scientist Associate

Microsoft

JANUARY 2022 - PRESENT

SC-900: Microsoft Security, Compliance, and Identity Fundamentals

Microsoft

AUGUST 2021 - PRESENT

AWS Partner: Cloud Economics Accreditation

Amazon Web Services

JULY 2021 - PRESENT

DP-900: Microsoft Azure Data Fundamentals

Microsoft

JUNE 2021 - PRESENT

AI-900: Microsoft Azure AI Fundamentals

Microsoft

MAY 2021 - MAY 2023

MuleSoft Certified Platform Architect - Level 1

MuleSoft

APRIL 2021 - APRIL 2023

MuleSoft Certified Developer - Level 1 (Mule 4)

MuleSoft

JANUARY 2021 - PRESENT

AWS Partner Accreditation (Business)

AWS

MAY 2020 - PRESENT

AZ-900: Microsoft Azure Fundamentals

Microsoft

MARCH 2020 - PRESENT

ITIL Foundation Certificate in IT Service Management

Axelos

JANUARY 2020 - JANUARY 2022

MuleSoft Certified Developer: Integration Professional (Mule 3.8)

MuleSoft

JUNE 2019 - PRESENT

TOGAF 9 Certified

The Open Group

APRIL 2019 - PRESENT

Boomi Associate Developer Certification

Boomi

MARCH 2019 - MARCH 2021

MuleSoft Certified Integration Architect - Level 1

MuleSoft

AUGUST 2018 - AUGUST 2020

Certified Management Consultant (CMC)

Institute of Certified Management Consultants Philippines

MAY 2018 - PRESENT

PRINCE2 Foundation Project Management Certification

Axelos

AUGUST 2015 - DECEMBER 2022

Core Connector for Benefits

Workday

DECEMBER 2014 - DECEMBER 2022

Core Connector for Third Party Payroll

Workday

JUNE 2014 - DECEMBER 2022

Workday Studio for Integration Consultants

Workday

FEBRUARY 2014 - DECEMBER 2022

Integration Core Certification

Workday

JANUARY 2013 - DECEMBER 2022

Human Capital Management Services Overview

Workday

Skills

Libraries/APIs

REST APIs, Salesforce API, API Development, MuleSoft API, Salesforce REST API, Workday API, HubSpot API, Node.js, Stripe API, Apigee, Social APIs, Azure API Management, Typeform, LinkedIn API, QuickBooks API, Gmail API, Stripe

Tools

Anypoint Studio, Jira, Postman, Git, Microsoft Excel, SQL Management Studio, GitHub, Stripe Checkout, IntelliJ IDEA, Visual Studio, Apache Tomcat, Crystal Reports, Confluence, IBM MQ, Jenkins, Mercurial, SoapUI, TortoiseSVN, Bitbucket, Slack, Miro, Oracle Financials, Microsoft Project, Make (formerly Integromat), Zapier, n8n, Claude, Recurly, Google Sheets, Actions on Google, AI Prompts, Lawmatics, Microsoft Access, Google Workspace

Languages

XML, SQL, XSLT, DataWeave, HTML, Go, Rust, TypeScript, Java 8, PHP, Visual Basic 6 (VB6), Visual Basic .NET (VB.NET), Java, Python, JavaScript, CSS

Paradigms

API Architecture, Back-end Architecture, Requirements Analysis, REST, Change Management, Automation, Azure DevOps, Unit Testing, Testing, DevOps, ETL, Management, ITIL, B2C, Model Context Protocol (MCP)

Platforms

MuleSoft, Salesforce, HubSpot, Azure, Eclipse, Oracle Database, webMethods, BIRT, Apache Kafka, Amazon Web Services (AWS), WordPress, Databricks, Google Cloud Platform (GCP), Zoho CRM, Webflow, Twilio, Microsoft Power Automate, Vertex AI

Storage

JSON, Data Integration, MySQL, Azure Cosmos DB, PostgreSQL, Databases, Dell Boomi, Amazon S3 (AWS S3), Google Cloud, Data Lakes

Frameworks

JUnit, Agentic Frameworks

Industry Expertise

Insurance, Retail & Wholesale, Cybersecurity, Telecommunications, Marketing

Other

Systems Analysis, Artificial Intelligence (AI), Architecture, API Integration, Integration, Web Services, SOAP, MuleSoft Anypoint Platform, APIs, Project Discovery, CSV, API Testing, API Design, HubSpot CRM, System Architecture, Ticket Systems, Technical Writing, Technical Documentation, Documentation, System Integration, Webhooks, Technical Leadership, IT, Back-end, Debugging, Advisory, CRM, Enterprise Systems, Third-party APIs, Third-party Integration, Troubleshooting, Programming, IT Project Management, Cloud Computing, Consulting, Workday HCM, Workday EIB, Workday Report Design, Workday Implementation, Workday, Solution Architecture, Technical Architecture, Stakeholder Management, RAML, Enterprise Resource Planning (ERP), Customer Relationship Management (CRM), Data Transformation, Legacy Code, Cloud, Data Analysis, BI Reporting, HubSpot Marketing Hub, DNS, DNS Configuration, Gmail, Large Language Models (LLMs), Data Modeling, Machine Learning, SaaS, CRM Design, CRM Systems, AI Design, Prompt Engineering, Software Architecture, Sales Operations, Business Analysis, Computer Science, AI Integration, RAG Systems, Workflows, Cloud Infrastructure, CTO, Fractional CTO, Product Discovery, Product Development, Administration, Reporting, Research, Data Science, Enterprise Architecture, IT Service Management (ITSM), Security, Oracle Service Bus (OSB), SAP Infotype, Learning Management Systems (LMS), Okta, Solution Design, Technical Design, Integration Testing, System Integration Testing (SIT), Anypoint MQ, Financials, Estimations, Sales, Request for Proposal (RFP), Informatica, High-performance Design, Monday.com, Amazon Managed Workflows for Apache Airflow (MWAA), Data Engineering, Cloud Platforms, Robotic Process Automation (RPA), Data Visualization, eCommerce, Data Strategy, Social Media Content, Landing Pages, Authentication, Bots, WhatsApp, AI Agents, Workflow Automation & System Integration, Data Management, Email Automation, Funnel Analysis, Sales Funnel, Performance Marketing, Information Technology, Agentic AI, Cursor AI, Data Labeling, Data Annotation, Intuit QuickBooks, Retrieval-augmented Generation (RAG), Error Handling, Subscription Processing, Payment Processing, Mighty Networks, Data Migration, CRM Implementation (Salesforce), AI Programming, Natural Language Processing (NLP), Vector Databases, Agentic RAG Systems, Google Calendar, Business Email, IT Consulting, Product Management, CRM APIs, Squarespace, Breeze AI, Gemini, Gemini API, HubSpot Service Hub, RAG Architecture, AI Marketing, LLM Integration, Multitenancy, AI Model Training, AI Chatbots, Web Development

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