a
andyyanaus

Andy

@andyyanaus

Senior Full Stack Developer, CRM Mobile App Specialist

Australia
English, Chinese
About me
I'm Andy, a senior Full Stack Developer & CRM architect with 25+ years building enterprise web, mobile and marketing systems. Most recently I designed and built an in-house marketing CRM that fully replaced HubSpot — SendGrid email automation, dynamic segmentation, forms and analytics dashboards — and shipped a published React Native app (iOS & Android) with payments, loyalty points and push notifications. From requirements to deployment, I deliver clean, scalable, production-ready code that drives real business value. Let's build something great.... Read more

Skills

a
andyyanaus
Andy
Offline • 
Average response time: 7 hours

See my services

Full Stack Web Applications
I will build email marketing automation and custom CRM
From$120 / projectMore details
Full Stack Web Applications
I will develop a web application with blazor in c sharp
From$150 / projectMore details

Portfolio

Work experience

Full Stack Developer & CRM Architect

Nutri • Part-time

Mar 2025 - Present • 1 yr 2 mos

Designed and single-handedly built NutriCRM, an in-house marketing CRM that replaced HubSpot — a dynamic segmentation rule engine, multi-trigger email automation with SendGrid, custom forms with double opt-in, suppression/bounce handling and analytics dashboards — on ASP.NET Core 8 and Blazor Server. Also built and published the Nutrimetics VIP cross-platform React Native app (iOS & Android) featuring a loyalty/points program, real-time order tracking, push notifications and multiple payment methods (Credit Card, ZipPay, AfterPay, Apple Pay, PayID). Maintained and enhanced the WordPress/WooCommerce store.

Full Stack Developer

Saville Assessment Asia Pacific • Full-time

Jun 2021 - Dec 2025 • 4 yrs 6 mos

Responsible for system design and implementation, third-party integration, and database design and maintenance. Utilized Java, AngularJS, Vue.js, MySQL, ChatGPT, and GCP. Successfully delivered one customer-oriented system and three internal systems.

Full Stack C# Developer

On-Track Technology Pty Ltd. • Full-time

Nov 2016 - Jun 2021 • 4 yrs 7 mos

Analyzed user requirements, proposed solutions, and designed/maintained databases. Constructed systems using C#, ASP.Net, SQL Server, Vue.js, and MySQL. Provided technical support and managed system implementation. Key achievements include developing a Retail Management System (covering purchase, sales, and distribution) and a comprehensive distribution management system (including inventory, gathering & payment, and price management). Also developed customized software for clients using Java, Vue.js, Angular, and MySQL.