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Vetted developer in Australia (UTC+10)
I'm a Lead Software Engineer with extensive experience in backend development and cloud computing through AWS. I have mostly been working with JavaScript/TypeScript, and I now use AI to supercharge my development process.
Vetted developer in Australia (UTC+10)
As a seasoned Senior Engineer with 18 years of diverse industry and technology experience, I bring a wealth of knowledge to any team. With expert level C++ as well as .NET in C#, my skillset also extends to the front-end with React/Redux proficiency. I am now seeking my next challenge, where I can leverage my technical dexterity to drive impactful results.
Vetted developer in Australia (UTC-7)
CSE engineer skilled in Java, SQL, Android Development, Full-Stack Development and having a keen interest in problem-solving. Looking for a job opportunity in an esteemed organization to grow professionally and enhance my skill set.
Vetted developer in Australia (UTC+8)
Experienced Software Engineer with a proven ability to deliver projects on time. Solid understanding of Web Development, using JavaScript, TypeScript and various others. Capable of mentoring colleagues new and old. Experience in driving projects as a development team lead, and working together as part of a team. Passionate about learning and development with a desire to apply my existing knowledge.
Vetted developer in Australia (UTC+10)
Have been working as software developer for more than 5 years and been in fields of technology, finance, fintech.
Vetted developer in Australia (UTC+10)
I am an experienced Ruby on Rails developer with other 7 years experience. I am a co-author for the Ruby on Rails book, Active Rails [https://leanpub.com/rails](https://leanpub.com/rails) I have also worked with Javascript to build front ends as well as HTML and CSS, with frameworks like jQuery, React and Vue. I have also worked on mobile native apps and have built several for iOS and Android.
Vetted developer in Australia (UTC+10)
[https://linktr.ee/ivanchiou](https://linktr.ee/ivanchiou) Throughout my career, I have held roles as a Software Engineer, System Engineer, System Analyst, Project Manager, Product Manager, Scrum Master, and Front-end Manager. Currently, I am leveraging my expertise to lead film production, software development, drive innovation, and introduce new technology to our team. My experience in multimedia integration and cross-functional collaboration has equipped me with valuable skills to effectively mentor and inspire the team, providing young engineers with guidance and hope for their future careers.
Vetted developer in Australia (UTC+10)
I build Unity applications across architecture, engineering and construction (AEC), games,
mobile apps, simulations and real-time 3D.
I have worked in software engineering since 2005 and with Unity and C# since 2012. As a
Certified Unity Expert Programmer, I take projects from technical planning
through architecture, development, optimisation and deployment across WebGL, iOS, Android
and desktop.
My work spans Unity development, gameplay systems, 3D pipelines, native mobile integrations,
backend APIs, multiplayer, cloud infrastructure and CI/CD.
I create Unity solutions for architecture, engineering and construction, including:
I develop custom SketchUp extensions that inspect model structures, extract geometry and
metadata, apply project rules, generate configurable variants and export Unity-ready assets.
In Unity, I build runtime systems for materials, colours, dimensions, component options,
pricing, camera controls, saved configurations and backend integrations.
My experience includes commercial mobile games, PC and console titles, location-based apps,
educational software, training simulations, multiplayer systems and virtual environments.
I can assist with:
I have delivered mapping applications using Unity with Mapbox, WRLD and Google Maps, and
Angular applications using Leaflet, HERE Maps and Esri ArcGIS. Use cases include
architectural visualisation, indoor navigation, asset tracking, drone simulation and
GeoJSON processing.
For backend and web development, I work with Node.js, Express, TypeScript, PHP, Firebase,
MongoDB, AWS, Azure and Google Cloud. I build APIs, authentication, admin tools, content
pipelines, analytics integrations and real-time services.
I create automated pipelines using GitHub Actions, GitLab CI/CD and Fastlane for Unity
builds, mobile signing, WebGL deployment and release management.
I use Claude, OpenAI Codex and MCP-based tooling for codebase analysis, prototyping,
implementation, testing, documentation and maintenance.
My AI-assisted workflow combines clear specifications, experienced architectural direction,
source control, code review, automated testing and CI/CD validation. I also help teams adopt
AI-native workflows through agent-ready documentation, reusable skills, coding standards,
test-driven development and automated reviews.
I can lead a complete technical workstream or join an established team to solve a defined
problem. I contribute as a senior Unity engineer, technical lead, solution architect,
full-stack developer or consultant.
As the founder of multiple companies, I understand the commercial realities behind software
decisions. Clients value my ability to understand the goal, identify risks early,
communicate options clearly and turn complex requirements into maintainable software.
If you need an experienced Unity developer or technical lead for an AEC platform, game,
app, simulation or real-time 3D product, send me a message.
AEC, Construction and Real-Time 3D
Games, Apps and Simulations
GIS, Full-Stack Development and DevOps
AI-Native Software Development
Selected Projects
How I Work
Credentials
Vetted developer in Australia (UTC+8)
Senior full-stack engineer with over a decade of experience shipping production software across enterprise, government, healthcare, and consumer domains. Lead developer on enterprise project portfolio platforms for Fortescue Metals Group, ML-driven revenue management systems for Japanese aviation, and government geospatial applications. Combines deep expertise in Python (FastAPI, Django) and .NET with modern frontend frameworks (Vue 3, React, Next.js), backed by 15 years working in the United States and a current Master's in Data Science. Top Rated Plus on Upwork with a 100% Job Success score.
Vetted developer in Australia (UTC+10)
SAP Development Architect and SAP BTP Certified Solution Architect with 19 years of experience delivering large-scale enterprise SAP solutions across banking, retail, and government sectors, including high-volume and performance-critical applications. Strong hands-on experience in SAP S/4HANA using ABAP on HANA including CDS, AMDP, and RAP, with focus on scalable and optimized solution design for large and complex systems. Delivered measurable impact through high-volume processing and performance optimization, including runtime reduction from 240 hours to 6 hours in enterprise workloads. Hands-on with SAP Business Technology Platform through project delivery and public engineering work, including CAP, Integration Suite, event-driven patterns, and selective AI/MCP implementations. Built MCP-based tooling in Node.js to expose SAP RAP services as controlled tools and developed SAP CAP/CDS-oriented natural-language query tooling. Active SAP Community contributor, blogger, and TechEd speaker with multiple SAP certifications and a granted patent US10304013B2.
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