00 / Index
- Based
- Newcastle, UK
AuliaZulkarneidi
Senior Software Developer
Senior Software Developer with 7+ years' experience delivering event-driven, production systems at scale. Specialising in distributed messaging, .NET microservices on Azure, reactive component based UI architecture and full-stack engineering across retail and enterprise environments.
01 / About
Newcastle, UK
Building production systems that scale.
I'm a Senior Software Developer with 7+ years' experience building event-driven, production systems across retail and enterprise settings.
I specialise in distributed messaging and .NET microservices on Azure, with a strong eye for performance, observability, and clean system design. I hold an MSc in Data Science & Artificial Intelligence from Newcastle University (Distinction), which informs my approach to building intelligent, data-driven systems, from ML-powered recommendation engines to real-time analytics pipelines.
- 7+
- Years
- 3
- Industries
- 85%
- Fewer queries
- MSc
- DS & AI
Event-Driven Systems
Distributed messaging with NATS, Kafka, Websocket and Azure Service Bus in high-availability retail environments.
Measurable Impact
Cut support queries by 85%, eliminated missing-order incidents across major delivery platforms, and improved accessibility scores by 10 points.
Full-Stack Ownership
From Azure infrastructure and .NET microservices through to Flutter, React and Vue.js frontend frameworks.
02 / Stack
29 tools across the full stack
Technologies I work with.
- TypeScript / JS
- C#
- SQL
- Dart
- React / Next.js
- Vue.js / Nuxt
- Flutter
- Tailwind CSS
- Three.js
- GSAP
- ASP.NET Core
- Node.js
- REST APIs
- Terraform
- PostgreSQL
- MongoDB
- MySQL
- Azure
- Docker
- Kubernetes / AKS
- CI/CD (Azure DevOps)
- Nginx
- NATS
- Kafka
- RabbitMQ
- LaunchDarkly
- ONNX
- xUnit / Jest
- Cypress
ExpertProficientFamiliar
03 / Work
8 of 8 shown
Selected projects.
01
linux
Kitchen Management System
A unified kitchen management system that handles in-store and digital oridering channels running on Linux and Kubernetes across Greggs stores. I re-architected the backend and infrastructure of the cloud and edge computing and re-assessed cloud messaging by introducing data streaming that suports persistence which reduced missing orders up to 98% in the Greggs estates and implemented websocket, a trading backend and edge sidecar to replace continuous polling over the internet and menu data availability regardless of poor internet connection in store.
02
linux
Greggs Kiosk
Customer-facing self-service kiosk running on Linux across Greggs stores. I joined as one of the first developers, shaped the early prototype, and led development of reusable order-sharing, loyalty and promotions packages which are now adopted by POS and drive-through teams.
03
web
Greggs Website
Full-stack development on greggs.co.uk ranging from Click & Collect, gift cards, account management, checkout and CMS-driven contents. I also led the implementation of secure mobile number change in .NET, Zendesk integration, and accessibility improvements raising the score from 72% to 82%.
04
mobile
Activate ERP
Mobile-first Entrprise Resource Planning system for retail and distribution ranging from goods receiving, stocktaking, inventory, picking, and transfers. I architected and built the frontend layer from scratch with a single codebase targeting both App Store and Google Play which has features such as biometric auth, camera for photo upload, geolocation as a verification, and secure storage.
05
web
Katie Jayne
Production-quality e-commerce storefront for a premium glassware brand. I built it with React, Next.js, and TypeScript which has features such as product catalogues, cart, checkout, Redux state management, Mailchimp integration, and Playwright end-to-end tests.
06
web
The Contour Atlas
A field guide to the twelve regions of the UK ranging from food, festivals, landmarks and live weather which is drawn as an Ordnance Survey sheet. A server-side producer polls Open-Meteo for all twelve regions in a single request every 60 seconds, filters out readings that haven't actually changed, and publishes them over Server-Sent Events to a station-style split-flap board. Streaming sits behind an EventBus interface, so moving to a Kafka-compatible broker swaps one file rather than reworking the app. Coastline, borders and pins all project from real coordinates through one shared function, and the whole thing runs without an API key.
07
web
iPhone Clone
Interactive clone of Apple's iPhone product page, built to master 3D rendering and scroll-driven animation. It has real-time device rotation with Three.js, fluid reveals with GSAP, and storytelling-led UI architecture.
08
web
Beauty & Spa Landing Page
Marketing landing page for a Singapore-based beauty clinic. I built it with clean HTML, CSS and javascript which features Mobile-first development, with jQuery-powered sliders, smooth scroll, and consultation journey.
04 / History
Most recent first
Where I've worked.
Dec 2025 — Present
Greggs PLC
Senior Software Developer
Leading architecture and delivery across the Greggs digital ordering estate ranging from cloud infrastructure, .NET microservices, machine learning integrations, and real-time data pipelines supporting the Kiosk, Kitchen Management System, and delivery platforms such as Uber Eats, Just Eat, Click & Collect and Deliveroo.
- Re-architected cloud-to-edge delivery partner integration from WebSocket relay and Service Bus to data streaming, eliminating missing-order incidents across Uber Eats, Just Eat, and Click & Collect
- Introduced a sidecar with an overnight cron job to sync SAP menu data locally, decoupling KMS from cloud availability and reducing offline scenarios caused by poor in-shop connectivity
- Built an ONNX machine learning recommendation service for kiosk add-ons to improve upsell relevance
- Contributed to evaluation of AI-assisted developer tooling for code review and implementation workflows
- Managed Azure infrastructure supporting production Website, KMS, and Kiosk deployments
Jan 2024 — Nov 2025
Greggs PLC
Web Developer
Full-stack development across the Greggs Kiosk, Kitchen Management System, and consumer and comapny websites, owning features from .NET microservices on Azure through to the Vue.js and Flutter frontends.
- Introduced feature flagging, A/B testing, and user behaviour analytics using LaunchDarkly and Google Analytics across the kiosk funnel, enabling safe rollouts and funnel optimisation
- Developed secure guest checkout and mobile update flows in .NET Azure microservices, reducing support queries by 85%
- Introduced WireMock for API mocking and Nginx as a reverse proxy to enable parallel frontend/backend development
- Improved website accessibility score from 72% to 82%
Nov 2021 — Nov 2022
Vi8e Interactive Pte Ltd
Web Developer
Built and maintained a cross-platform SPA ERP application published on the App Store and Google Play in Singapore, working across a full product lifecycle from requirements to release.
- Shipped a cross-platform SPA ERP app to the App Store and Google Play
- Integrated geolocation verification, biometric authentication, camera, and i18n support
- Delivered multiple third-party API integrations using Axios and Fetch
- Liaised with designers, developers, testers and project owner to ensure the efficiency of APIs, software security, continuous improvement and user experiences
Apr 2021 — Oct 2021
Vi8e Interactive Pte Ltd
Frontend Developer
Frontend development for ERP tooling and e-commerce projects, with a focus on cross-platform delivery and custom theming.
- Built a Vue.js/Quasar ERP application with price calculation, dashboards, and Cordova mobile deployment
- Connected features with JSON-based APIs via Vuex, Axios and javascript modules
- Developed a custom theme for the Cold Storage e-commerce website
- Debugged and resolved software defects and issue
January 2017 — April 2020
Universitas Sumatera Utara
Full Stack Developer
Monorepo development for bachelor's thesis management portal, lecturer's research project management portal and finance allocation management portal for the University.
- Collaborated with cross-functional teams to identify user requirements and to invent system designs
- Orchestrated continuously a student thesis management portal and research publication management system with user-centric approach
- Debugged and resolved software defects and issues
March 2016 — Febuary 2017
Universitas Sumatera Utara
Laboratory Assistant
Teaching second year students in Internet Programming and Relational Database Management System.
- Taught web applications by implementing PHP, MySQL, Object Oriented Programming, Codeigniter Framework and Twitter API
- Taught Relational Database Management System using MySql
September 2019 — December 2019
Universitas Sumatera Utara
Data Science Instructor Assistant
Assisted lecteurers teaching Data Science in the Digital Talent Scholarship Program, an intensive program of the Ministry of Communication and Information of Indonesia to enhance the quality of human resource in ICT field.
- Taught students Python programming
- Taught students NumPy and Spark
- Taught students Natural Language Generation and NLTK
05 / Method
Six principles, applied from first commit to production rollout.
How I work.
Event-Driven by Default
I design systems around events and async messaging using NATS, Kafka, Websocket and Azure Service Bus which keep services decoupled, resilient, and independently deployable.
Observability First
Every production system I ship includes structured logging (Seq), metrics (Prometheus or Grafana), and dashboards from day one. If you can't observe it, you can't own it.
Ship Safely
Feature flags (LaunchDarkly), A/B tests, and staged rollouts let me push to production continuously without big-bang releases or late-night rollbacks.
Test at Every Layer
Unit, integration, contract, and E2E tests using frameworks such as xUnit, Flutter Test, Vitest, Jest, Cypress and Playwright. Good test coverage enables confident refactoring and fast PR reviews.
Reusable Architecture
I build shared packages and clean domain boundaries that other teams can adopt. At Greggs, my order-sharing and loyalty packages were picked up by POS team.
Accessibility & Performance
Every UI I build starts from semantic HTML and ARIA standards. I measure Core Web Vitals from the start (not as an afterthought) and treat accessibility as a first-class requirement.
06 / Contact
Reply within 24 hours on business days.