Dennis Lo Email & Phone Number

London, Gb

London, England, United Kingdom

● Architected and led a team to build tooling and capabilities to re-platform their web services with Cloud Entity & Contentful● Designed a new GQL schema for the basket and checkout flows Technologies used: HTML/CSS, Typescript, Node, React (Next.js, Urql, Nx, Playwright), Vercel, Azure, Github Actions, Terraform, Newrelic, PagerDuty

London, England, United Kingdom

● Enhanced and managed high-volume transactions with Chargebee, Commerce Tools, Adyen, Auth0, Eagle Eye & Braze● Spearheaded engineering practices through full remote pair programming, increased test coverage & regular code reviewsTechnologies used: HTML/CSS, Typescript, Node, React (Next.js, Apollo Client), Google Cloud Platform, Github Actions, Terraform, Alerts & Monitoring (Sentry)

London, England, United Kingdom

● Developed green field, responsive web app using React, Redux, Node for HR Banking startup / disruptive venture● Synergised with diverse disciplines: natural language processing, legal, insurance, human resources● Focused on managing employees, their data and HR processes, safely and securely: https://www.natwestmentor.co.uk/Technologies used: HTML/CSS, Typescript, Node, React (Nx, Apollo), Gatsby + Strapi, Testing (Jest, Cypress, BrowserStack), AWS (Lambda, S3), Docker, Monitoring (NewRelic synthetics), Continuous Integration & Deployment (GitHub, Github actions)

London, United Kingdom

● Developing green field, responsive web app using React, Redux, Node for a startup / disruptive venture● Collaborated with a mixed team hardware, backend, data science, machine learning, artificial intelligence● Heavy focus on real time data science, data engineering, graphing and tabular data: ​https://machinemax.com/Technologies used: HTML/CSS, Javascript, React (Flow, Sagas), Graphical charting (D3.js, Victory.js) Unit & end-to-end testing (Mocha, NYC, Jest, Storybook), Google Cloud Infrastructure (Firebase), Continuous Integration & Deployment (CircleCI)

London, United Kingdom

● Developed the Elsevier journal home pages: https://sciencedirect.com/journal/cell or https://sciencedirect.com/journal/the-lancet ● Proposed the design, construction & implementation of a shared “UI” library for consistent & faster cross team developmentTechnologies used: NodeJS (Hapi), HTML/CSS (ReactJS, Redux), Unit & end-to-end testing (Mocha, NYC, Jest, Storybook, Backstop), Cloud SaaS: Infrastructure (AWS), Continuous Integration & Deployment (GoCD), Error events (Getsentry), Logging (Kibana, ElasticSearch)

London, United Kingdom

● Developed the “Vibe” web app that intelligently sources social media content (Facebook, Twitter, Instagram, YouTube, Google+) for accomplished clients http://vibe.starcount.com/#/vibes/fourfourtwo● Architected & implemented the “Vibe” web components as an embeddable 3rd party widget for web & mobile apps. ● Proposed the design & construction of an online “enterprise platform” for analytical demographics & brand insights with a scalable PDF report generator https://observatory.starcount.comTechnologies used: HTML5, CSS3, Mongo (Compose.io, MongoLabs), NodeJS, AngularJS, PolymerJS, ReactJS, Unit & end-to-end testing (Mocha, Jasmine, Protractor, Cucumber, Webdriver.io), Redis (RedisLabs), Cloud SaaS: Infrastructure (Heroku, AWS), Message queues (CloudAMQP), Batch workers (Iron.io), Elastic Search (Found.io), Continuous Integration & Deployment (CircleCI), Error events (Getsentry), Logging (Paper Trail), Code quality (Codacy, Code Climate)

Sydney, Australia

● Contributed to system architecture, design, creation and delivery. Trained over 35 consultants infunctional development and hired new consultants.● Delivered many successful projects for some of Australia's largest companies and startups,including: HealthDirect Australia (Symptom Checker, HealthDirect, Widget)● Implemented a symptom checker used to clinically assess, diagnose and recommend professional or self care steps (similar to the symptom checker at WebMD http://symptoms.webmd.com/default.htm).● Collaborated with continuous integration and delivery to automate and improve the process of software delivery by removing manual deployments.● Designed and implemented a embeddable health service search widget to consolidate their existing desktop, mobile and smartphone widget.Technologies used: HTML5, CSS3, NodeJS, AngularJS, Grunt, Bower, Jasmine, Karma, Protractor, Java, Maven, AWS (EC2, ESB, ELB, VPC, S3), Solr Indexer with Camel and ActiveMQ, Ehcache , Alfresco CMS, Postgres DB, Puppet, Layer7, WSO2 ESB, Captiva DMS, Bamboo, Google AnalyticsMacquarie Bank● Consolidated 2 online private wealth FX/FIX (securities, warrants, options) web portals into a single centralised customer portal achieving 50% bandwidth reduction and improving website rendering speeds.Technologies used: HTML5, CSS3, AngularJS, Underscore, jQuery, Java, Facelets, Spring, Hibernate, Maven, Junit, Jetty, JBossPeters of Kensington● Remodeled, optmised and implemented the gift cards eCommerce component of http://www.petersofkensington.com.au that is still currently used to generate over $25M/year in revenue.● Engineered and programmed a REST JSON API with full shopping and bridal functionality for utilisation with bespoke built smartphone (iPhone and Android) app.Technologies used: HTML5, CSS3, C#, .NET Web forms, .NET Web API, SQL Server 2008 R2, jQuery, Java, Objective C, Google Analytics

Dover, Delaware Area

● Co foundered mobile app & web startup (USA Delaware C Corporation).● Moojive/Hipvite is a mobile app that extends your Facebook event experience. It makes it easy toshare your location for group events and saves you the hassle of calling or texting to find yourfriends when heading out without draining your battery. A startmate 2012 company:http://www.startmate.com.au/portfolio / http://angel.co/moojive● Ride Raider is a online marketplace for freelance travel experts. Customers pay a finder's fee andexperts compete to save them the most time and money. It assists with hiring all vehicles,frequent rental programs, special offers and travel routes.Technologies used: C#, JSON REST, MVC 3, Entity Framework, SQL Server 2008 R2, HTML5, CSS3, jQuery, iOS (Objective C), AWS (EC2, ESB, VPC), Rackspace.

Sydney, Australia

● Designed, created, and tested a responsive desktop/tablet/mobile website for UBank http://peoplelikeu.com.au/, a subsidary of National Australia Bank, that shows spending habits by age, location, gender, income and frequency (monthly, quaterly, yearly) to provide factoids and analytical credit card data.Technologies used: C#, MVC 3, Entity Framework, SQL Server 2008 R2, HTML5, CSS3, jQuery

Sydney, Australia

● Designed, built and tested media rich, scalable, high traffic web based eCommerce applicationsfor the fitness, health and beauty sector. They generated over $100M/year in revenue for GuthyRenker Australia Pty Ltd.● Proactiv AU/NZ: http://www.proactiv.com.au● Zumba: http://www.zumba.com/● Facebook Opera House competition: https://www.facebook.com/sydneyoperahouse● Sheer Cover: http://www.sheercover.com.auTechnologies used: C#, JSON REST, ASP.NET 3.5 web forms, SQL Server 2008 R2, PowerShell, Windows Server 2008, Team City continuous integration with Web Deploy, Google Analytics, Kiss Metrics

Sydney, Australia

● Developed innovative, reliable and easy to use property management, strata management andreal estate trust accounting systems that support over 4400 customers who use the softwareevery day.● Collaborated with the business to build an online Property/Tenancy Management system toreplace “REST professional” Australia’s leading desktop property management and sales trustaccounting software.Technologies used: MVC Silverlight 4.0, C#, .NET 4.0 framework, WCF services, SQL Server 2008 R2

Sydney, Australia

● Implemented and tested a suite of online financial products and services for Australia's leadingprovider of integrated financial services and the most recognised brand in the Australian financialservices industry, including:● CommSee is a CBA branch desktop application developed in rigid and large teams usingthe waterfall methodology with PL/SQL (Oracle), C# and ASP.NET 2.0.● NetBank https://www.my.commbank.com.au/ is a scalable, high traffic online bankingwebsite developed in rigid and large teams using the waterfall methodology with PL/SQL(Oracle), C#, ASP.NET 2.0, Javascript, HTML and CSS.● Projects.cba (to support CBA’s PMLC) and SDLC.cba (to support CBA’s SDLC). Theseare intranet websites developed in a small team (2 developers and 1 business analyst) using the agile methodology with ASP.NET 4.0, Javascript, SQL Server 2008, HTML andCSS.Technologies used: C#, .NET 4.0 framework, PL/SQL (Oracle), SQL Server 2008 R2

Sydney, Australia

● Researched and implemented Canon Ink Jet Printers and Large Screen Display software. Newalgorithm increases efficiency by 50% on average, reducing processing time by 25%, andcreating more usable endproduct.Technologies used: C, SVG, XML/XSLT, Java, Bash/Shell

Sydney, Australia

● Managed and supported a highly scalable online customer management portal for Optus, thesecond largest telecommunications company in Australia, a subsidiary of Singtel.● Performed UNIX application deployment, installations, configurations, production troubleshootingand procedure documentation.Technologies used: Bash/Shell, Perl, UNIX, Apache, Apache Bench tool, MySql