Christopher Yau, Developer in Washington, DC, United States
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Christopher Yau

Verified Expert  in Engineering

Certified Salesforce Developer

Washington, DC, United States

Toptal member since June 5, 2024

Expertise
Software DevelopmentWeb DevelopmentXMLApexJavaScriptVisualforceDevOpsLMSPHPPerlHerokuAWS
Bio

Christopher is a certified senior Salesforce developer and architect with a background encompassing various technologies on the Salesforce CRM platform. He primarily supports large enterprise sales and marketing organizations. With insight into unique business needs, Christopher has a history of providing uniquely creative solutions that will meet complex technical requirements without requiring an advanced background to maintain and update them.

Portfolio

Crucible Cloudworks, LLC
Visualforce, Salesforce Service Cloud, CallRail, MuleSoft...
Rocket Mortgage
Salesforce Service Cloud, App Exchange Managed Packaging, MuleSoft...
Fonteva, Inc
XML, Management Systems, JavaScript, Mentorship & Coaching...

Experience

  • Salesforce - 15 years
  • Salesforce Certified Developer - 12 years
  • Salesforce Experience Cloud - 10 years
  • DevOps - 10 years
  • Salesforce Service Cloud - 10 years
  • Management Systems - 9 years
  • Lightning Web Components (LWC) - 6 years
  • Copado - 4 years

Availability

Part-time

Preferred Environment

Salesforce, Salesforce Certified Developer, Copado, XML, Salesforce Experience Cloud, DevOps

The most amazing...

...solution I've developed from scratch is a middleware product that allows the customer to address changing security needs while remaining on budget.

Work Experience

Senior Lead Developer

2008 - PRESENT
Crucible Cloudworks, LLC
  • Updated Apex integrations for a financial services client, including Qualtrics, Appian, and Workday APIs.
  • Led a development team to turn around a digital transformation project that two other large Salesforce vendors had failed.
  • Configured and deployed an Experience Cloud Community for Chapter membership.
  • Assisted with team deployments and DevOps using Copado, Flosum, and Gearset.
  • Used Salesforce CMS to build a robust portal, including search functionalities, to support a large Salesforce Commerce Cloud integration.
  • Created a custom Lightning Component dashboard to process and display callbacks from CallRail via telephone webhooks.
  • Developed native iOS and Android applications to interface with Salesforce data and other streaming APIs.
  • Built an anonymous proxy to use in conjunction with various webhooks to meet additional external integration requirements.
  • Mentored junior developers and set up deployment and code review processes.
  • Gained experience with various external APIs, including SOAP-based callouts to TRAX and Nalpeiron for licensing, Zuora for billing, document storage in Google Drive and AWS S3, and legacy applications, including HelloFax.
Technologies: Visualforce, Salesforce Service Cloud, CallRail, MuleSoft, MuleSoft Anypoint Platform, Salesforce Experience Cloud, Copado, PHP, Salesforce Sales Cloud, Financial Services Cloud, Web & Mobile Applications, Learning Management Systems (LMS), Salesforce, DevOps, Amazon Web Services (AWS), Salesforce Certified Developer, Heroku, Telephony, Management Systems, Lightning Web Components (LWC), Business Information Systems, Software Development, Content Management Systems (CMS), Web Development, XML, APIs, Mentorship & Coaching, JavaScript, Aura, App Exchange Managed Packaging, Lightning Service Console, Perl, Salesforce Health Cloud, Charm EHR

Senior Software Engineer

2019 - 2021
Rocket Mortgage
  • Worked on external Rocket Mortgage and internal broker licensing projects for the nation's largest mortgage lender.
  • Instituted, mandated, and supported DevOps processes in a continuous integration (CI) environment, particularly enforcing compliance from offshore contractors.
  • Set up integrations to several internal and external AWS and S3 APIs. Additional challenges included complex cryptographical requirements for sensitive data transfer, as befits financial requirements, using the Quicken key service.
  • Supported, through architecture and development, improvements to the existing Avaya telephony system while working on integration to replace the Talkdesk CTI system.
  • Used MuleSoft Anypoint to create integrations for daily file transfers from FTP/Amazon S3 to Salesforce.
  • Developed a service cloud-based support system using real-time notifications through streaming API/PushTopics from Salesforce and Case Milestones.
  • Participated in creating an AppExchange managed package, handling aspects such as packaging and distribution using Salesforce scratch organizations and 2nd-generation managed packaging techniques.
Technologies: Salesforce Service Cloud, App Exchange Managed Packaging, MuleSoft, Financial Services Cloud, Lightning Service Console, DevOps, APIs, Lightning Web Components (LWC), Software Development, Business Information Systems, Salesforce, Salesforce Certified Developer, Salesforce Sales Cloud, XML, Mentorship & Coaching, JavaScript, MuleSoft Anypoint Platform, Telephony, Amazon Web Services (AWS)

Salesforce Delivery Engineer

2015 - 2016
Fonteva, Inc
  • Contracted for the emerging markets team at Fonteva to develop for municipal/311 markets.
  • Utilized Lightning Components for municipal services billing, event registration, and point-of-sale processing.
  • Worked on the mobile point-of-sale iOS system and the credit card reader hardware integration using JavaScript.
  • Acted as the delivery engineer for the Fonteva MemberNation product, focusing on SSO/API customizations required for large association customers.
  • Mentored other developers, particularly in offline tools to extend productivity, such as XML manipulation and Ant, the Salesforce migration tool.
  • Supported a key project for the Chartered Institution of Building Services Engineers (CIBSE) in the United Kingdom.
  • Developed a solution for the National Volunteer Fire Council to use the DigitalChalk learning management system (LMS) for membership training courses.
  • Integrated external systems to Salesforce communities using proprietary and standard Security Assertion Markup Language (SAML) methods.
Technologies: XML, Management Systems, JavaScript, Mentorship & Coaching, Learning Management Systems (LMS), Aura, APIs, Salesforce, Salesforce Certified Developer, Salesforce Sales Cloud, Salesforce Experience Cloud

Salesforce Developer

2014 - 2015
Incapsulate
  • Replatformed the Idmanagement.gov website for the General Services Administration (GSA), moving it from a Drupal-based system to a Salesforce platform.
  • Developed a platform using Salesforce Communities for vendors to receive government accreditation from the GSA.
  • Set up a portal for the Executive Office of the Mayor (EOM) of Washington, DC, to use mobile devices and Salesforce1 to respond to citizen reports.
  • Created multiple internal applications for Salesforce, including a Twitter API and a search product to index federal documents and articles, displaying them as "faceted" results.
Technologies: Salesforce, Web Development, APIs, Software Development, Salesforce Certified Developer, XML, Salesforce Service Cloud, Salesforce Experience Cloud, Visualforce

Senior Marketing Developer

2010 - 2014
Vocus
  • Developed a highly customized system within Salesforce, using Apex for all sales lead assignments, based on predesignated criteria and balancing load between active sales representatives.
  • Designed a presentation platform that polled active Twitter data using REST and updated various real-time displays to reflect customer interest in the company's annual user conference.
  • Transitioned an acquired company from Marketo to Eloqua to merge their customers with the company's nurturing program while transitioning their information into Salesforce.
  • Worked closely with the .NET product development team to design a free trial program to integrate new trial users as leads within Salesforce.
  • Integrated with Recurly and Zuora systems with the existing SOFTRAX finance system.
Technologies: Apex, Software Development, Business Information Systems, Content Management Systems (CMS), Web Development, Salesforce Certified Developer, Salesforce Sales Cloud, Visualforce, DevOps, PHP, Web & Mobile Applications

Application Developer

2003 - 2009
Verizon
  • Developed scripts to automate daily reporting and expense conversions.
  • Set up and maintained a complex content management system for the main corporate website using Bricolage, a template-based CMS using mod_perl and PostgreSQL.
  • Tracked sales leads from all electronic marketing sources and tradeshow referrals using various 3rd-party and self-developed tools, including SalesLogix CRM.
Technologies: Business Information Systems, Content Management Systems (CMS), Web Development, XML, PHP, Perl, Telephony, Web & Mobile Applications

Experience

Salesforce Sales Cloud Implementation

I worked on implementing Salesforce Sales Cloud for a transportation brokerage. Over the years, due to evolving needs, several custom pieces were added, including a real-time telephony integration featuring a custom Lightning Web Component UI, streaming API development for a mobile app to track vehicles in the field, and website and community integrations for customers and vendors.

Salesforce Health Cloud Integration

Built out a complete electronic health record (EHR) integration for Salesforce Health Cloud for an independent medical services provider. The system included real-time and periodic customer data synchronization with both EHR/billing and marketing automation platforms.

Certifications

DECEMBER 2023 - PRESENT

Copado Fundamentals | Metadata Pipeline Certification

Copado

DECEMBER 2017 - PRESENT

Salesforce Certified Platform Developer

Salesforce.com

Skills

Tools

Salesforce Sales Cloud

Languages

Apex, XML, JavaScript, PHP, Perl

Frameworks

Visualforce

Paradigms

DevOps

Platforms

Salesforce, Salesforce Experience Cloud, Copado, MuleSoft, CallRail, Amazon Web Services (AWS), Heroku, Salesforce Health Cloud

Other

Software Development, Web Development, APIs, Aura, Salesforce Service Cloud, Lightning Service Console, Lightning Web Components (LWC), Web & Mobile Applications, Salesforce Certified Developer, Business Information Systems, Content Management Systems (CMS), Management Systems, Mentorship & Coaching, Learning Management Systems (LMS), App Exchange Managed Packaging, Financial Services Cloud, MuleSoft Anypoint Platform, Telephony, Charm EHR

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