0403 153 929 danh@treeshake.com.au 127 York Street, Sydney

Sydney-based technology consultancy

Growth throughtechnologythat works.

We build secure, dependable software for government, banking, finance, cybersecurity and telecommunications, and we build it with the people who will use it.

Experience you can trust

Trusted with systems people rely on every day.

15+years building software people rely on

Services Australia · ReturnToWorkSA · PLANR

Government

Federal and state. Health identity, workers' compensation, nature repair.

ABN AMRO

Banking and finance

Trading platforms, exchange connectors, compliance and audit.

archTIS · Kojensi

Cybersecurity

Classified collaboration, accredited to PROTECTED.

Industry experience

Telecommunications

High-volume, always-on systems.

Veris · PLANR

Agritech and spatial tools

Carbon and biodiversity planning for landholders.

Organisations our team has worked with

  • Services Australia
  • ABN AMRO
  • archTIS
  • ReturnToWorkSA
  • Veris
Client names and logos are trademarks of their respective owners. They identify past engagements by members of our team and do not imply endorsement.

What we do

Build, modernise, lead.

Full-stack engineering across web and cloud, from the first screen to the services, data and pipelines behind it.

Build

  • Full-stack web applications
  • APIs and microservices
  • Angular and React
  • Java and Spring Boot
  • .NET
  • Node.js
  • Spatial visualisation
  • Secure portals

Modernise

  • Digital transformation
  • Monolith to microservices
  • Event-driven architecture
  • Azure cloud
  • Domain-driven design
  • Secure configuration
  • Service discovery
  • Exchange and system integration

Lead and deliver

  • Technical leadership
  • High-performing teams
  • Technology uplift
  • CI/CD and Azure DevOps
  • Code quality gates
  • Automated testing
  • Release verification
  • Production support

Our work

Highlighted projects.

Proven on real programs: the platforms our team has helped build, and the practices behind them.

  1. Screenshot of the PRODA portal's My linked services page, with tiles for HPOS and Medicare Online

    Federal government / Identity and access

    Medicare and PRODA

    Secure identity for health professionals reaching Medicare Online, HPOS and PBS Online.

    HowDesign for the people who use it

    What we did
    • Full-stack engineering on Medicare and PRODA services.
    • Worked within the delivery standards of a national government agency.
    • Also delivered on the Veteran Centric Reform program, getting productive in SAP UI5 quickly.
  2. Candlestick trading chart on a laptop screen against dark, blurred city lights

    Banking / Trading and compliance

    Trading platforms and exchange connectivity

    Trading platforms, exchange connectors, and compliance and audit projects.

    HowModel the business before the code

    What we did
    • Built connectors linking trading platforms to exchanges.
    • Delivered compliance and audit projects for a heavily regulated bank.
    • Domain-driven design, with clear boundaries so each area can change safely.
  3. Kojensi logo with the tagline Accredited Platform for Compartmentalised Classified Information Collaboration and Sharing

    Cybersecurity / Modernisation

    Kojensi

    Classified collaboration for Defence and government, accredited to PROTECTED.

    HowModernise without the big bang

    What we did
    • Contributed to its move from one large application to microservices.
    • Central, secured configuration and service discovery with Spring Cloud Config, Consul and Vault.
    • Message-driven services designed to handle errors and tolerate failure.
  4. ReturnToWorkSA Online Services portal showing the WPI referrals screen with a red navigation bar and a table of referrals

    State government / Digital transformation

    Online services portal

    Phone and paper moved to self-service online, saving cost on every transaction.

    HowProve every release

    What we did
    • Digital transformation of employer and provider services onto a secure, self-service portal.
    • Cost savings from shifting phone and paper transactions online.
    • Automated smoke tests in the production deployment, so every release confirms it has worked.
  5. PLANR mapping tool: satellite view of a rural property with drawn project areas showing carbon, biodiversity and cost-per-hectare estimates

    Agritech and spatial tools / Technical leadership

    PLANR: Platform for Land and Nature Repair

    Science-based spatial tools helping landholders plan carbon and biodiversity projects.

    HowLead and uplift the team

    What we did
    • Lead the technical delivery of PLANR with Veris.
    • Spatial mapping tools for drawing project areas and assessing land suitability.
    • Carbon and biodiversity estimates, and a marketplace linking landholders with buyers.
Danh Nguyen

Meet the founder

My passion is delivering software for a purpose, software that is a joy to use.
Danh NguyenPrincipal Software Engineer and Managing Director

Danh brings more than fifteen years of software development expertise across telecommunications, banking, cybersecurity, finance and government. As a Technical Lead at Lapis, he leads PLANR, a science-based platform whose rich spatial visualisation helps the Australian Government and landholders unlock biodiversity opportunities on their land.

With deep knowledge of web applications and cloud technologies, including Azure, .NET, Angular, React and Java, his greatest strength is versatility. He adapts to every level of technical maturity, from early-stage startups to large enterprises, and builds high-performing teams through a human-centric approach, continuous improvement and technology uplift.

  • Human-centric leadership
  • Continuous improvement
  • Technology uplift
  • Startups to enterprise

Technologies we love

Deep, hands-on expertise.

We pick the right tool for your team and your constraints, and we know these ones inside out.

Two engineers at their desks in a bright open-plan office, one reviewing code on a large monitor
  • Angular
  • React
  • TypeScript
  • RxJS
  • NgRx
  • SAP UI5
  • Java
  • Spring Boot
  • Spring MVC
  • .NET
  • Node.js
  • Azure
  • Azure DevOps
  • Consul
  • Vault
  • Git
  • Maven
  • SonarQube
  • JUnit
  • Jest
  • Cypress
  • Playwright

Let's talk!

Tell us about the system you need to build, fix or modernise. We reply within two business days.

Get in touch

Contact

Start a project.

Office
127 York Street, Sydney NSW 2000
We only use your details to reply to you.

Privacy notice

Treeshake Pty. Limited (ABN 88 639 243 262) respects your privacy. This notice explains what this website collects and why.

What we collect

How we use it

We use contact form details only to reply to your enquiry and discuss possible work with you. We don't sell or share your details, and we don't add you to mailing lists.

Cookies and third parties

The site doesn't use advertising or tracking cookies. Fonts are served by Google Fonts, which receives your IP address to deliver them. Contact form messages are delivered by email through our mail provider.

Your choices

To access or correct the information you've sent us, or to ask us to delete it, email danh@treeshake.com.au.