A selection of engineering themes from my career: integration-heavy,
production-critical systems, financial platforms, partner integrations,
cloud and legacy modernisation work, technical leadership, AI-assisted
engineering workflows, and the SaaS products I design, build, and operate
myself.
Engineering work
Representative areas of professional and independent work. Details are
anonymised where they relate to commercial platforms.
Loan Management & Fintech Platform
Aryza · Senior Software Engineer
Secure, resilient .NET services supporting the full loan lifecycle, integrating with credit agencies, fraud and identity providers, and payment gateways.
Hosted checkout, card tokenisation, 3-D Secure, and webhook-driven payment processing
Resilience patterns: retries, circuit breakers, idempotency, and correlation IDs
Fintech
Payments
Azure
.NET
Dealer Management Partner Integrations
Pinewood Technologies · Senior Software Engineer
Two-way integrations between car dealers, manufacturers, governments, and other partners for a long-running dealer management platform.
Configurable inbound and outbound integrations across files, SOAP/WCF, REST, FTP/SFTP, WebDAV, OAuth, and OAuth2
Generic frameworks to reduce duplicated integration code and lower bug risk
Mentoring, technical debt reduction, SQL debugging, Azure monitoring, and production support
Integrations
Automotive
.NET
SQL
Document, Workflow & Communication Systems
AS White Global / Harvey Nash · Technical Lead
Lead delivery for document management, communication engines, workflow prototypes, meeting tools, and compensation submission systems.
Solution architecture, data design, release strategy, build ownership, code review, and client-facing delivery
Teams up to 17 people across Agile and waterfall delivery models
ASP.NET MVC, Web API, WCF, Entity Framework, AngularJS, Workflow Foundation, SQL Server, Jenkins, and TFS
Leadership
Workflow
Communication
.NET
E-payment, Healthcare & Data Transformation Products
Easy IT Solutions · Senior .NET Developer / Team Leader
Product and project work across e-banking, e-business, healthcare, insurance, payments, document design, and data transformation.
Payroll cheque and payment document tooling, EDI 835 auto-posting, appointment reminders, and AS/400 document design
Early multi-tenant SaaS and Windows Azure research for cloud data transformation processes
C#, Windows Services, WCF, SQL Server, DB2, Spring.NET, NHibernate, GDI+, TFS, and Microsoft Project Server
Payments
Healthcare
Azure
Data
AnhBui Dev — SaaS Product Suite
Independent · Design, build & operate
A growing portfolio of eight live browser products on Chrome, Edge, and Chromium, owned end-to-end from product discovery through licensing, billing, release, and support.
MV3 extensions with SaaS backends: licensing, device activation, and Stripe billing
Privacy-conscious design with free and Pro capabilities
Release management and a short feedback loop between real usage and improvement
SaaS
Product Engineering
TypeScript
AI-Assisted Engineering Workflow
Personal productivity and team workflow
Agentic AI development workflows for real production engineering: codebase understanding, root-cause investigation, automation, QA, and team enablement.
Claude Code on a large production .NET/SQL codebase for navigation, debugging, refactoring, and QA
MCP server setup and troubleshooting, including scope-gated results and tool resolution behaviour
Reusable skills, slash-commands, session hooks, structured memory, and PowerShell distribution for shared team workflows