NorthStar NorthStar HQ / AI apps
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[Proof 01] Parallel Completions · Australia

A field platform, rebuilt one module at a time.

We moved the platform from Angular and Ionic to React and TypeScript, shipped it to iPhone and Android, and kept the old app running until each module was replaced.

Since
August 2025
Runs on
Web, iPhone, Android
Team now
2 developers, 1 tester
Get this scoped See the modules
Web and mobile · approval centre
app.••••••.com.au/approvals
Approval Centre
Site 4 · East Pit Processing · Areas 1 to 4
JPAKRSExport+ New ITR
Systems tracked
1,291+12
ITRs signed
88%+2.1%
Punch items open
39-3 today
Handovers this week
8+1
Completion by areaSignedReviewOpen
Area 1
78%
Area 2
64%
Area 3
91%
Area 4
52%
ITRs by statusThis month
Signed 1,104In review 112Open 68
Waiting for sign-off3 items
TagItemDisciplineStatus
P-104Pump skid · ITR-BMechanicalIn reviewSigned off
SR-02Switchroom · punch listElectricalOpenSigned off
CV-11Conveyor · handover packMechanicalIn reviewSigned off
✓3 items signed off · synced to mobile
9:415G
My sign-offs3
P-104 · ITR-B✓Pump skid
SR-02 · punch list✓Switchroom
CV-11 · handover✓Conveyor
Sign off 3 items
Illustration · sample data
[01] At a glanceThe build in six lines

At a glance

Client
Parallel Completions, a completions and commissioning SaaS in Australia
Industry
Mines, processing plants and offshore projects
What we built
A rebuilt web app, a mobile companion app, and an AI training-video generator
Stack
React, TypeScript and Capacitor on a Java and PostgreSQL backend
Time
Design from August 2025, modules shipped one by one through 2026
How it runs now
A monthly team of two full-stack developers and a tester
[02] The problemBefore the rebuild

The app worked. Changing it didn't.

The platform's front end was built on Angular and Ionic, and each new module took longer to add than the last. A full rewrite would have stopped the product for months, and its customers were in the middle of live projects.

So the old app had to keep running while the new one took over, one module at a time, on the web and on the phones crews carry on site.

[03] The architectureApps, AI, data

New front end, same backend.

The Java API and the database stayed. Everything people touch was rebuilt on one codebase that runs on the web and both phone stores.

People
Field teamsOn iPhone and Android
SupervisorsApprove and sign off
AdminsSites, users, roles
Apps
Web appReact · TypeScript
Mobile appCapacitor, same code
Services
Java APIKept from before
SearchSystems, tags, documents
AI training videosGenerated from procedures
Data and reports
PostgreSQLProjects, records, sign-offs
Looker StudioProgress reports
[04] What we builtModule by module

Four modules, each replacing its old screen.

Each module went live on its own while the rest of the old app kept working. Screens are redrawn with sample data.

Module 01 · about 9 weeks

Approval Centre

Every inspection and test record goes to the right approver, with a trail of who signed what and when.

app.••••••.com.au/approvals
Waiting for your sign-off12 waiting
TagRecordAreaStatus
P-104Pump skid · ITR-BArea 1Signed off
SR-02Switchroom · punch listArea 2In review
CV-11Conveyor · handover packArea 3In review
LT-07Level transmitter · loop checkArea 3Open
HV-21HV cable · test sheetArea 4Signed off
Module 02

Admin Centre

Sites, users and roles in one place, so project admins set up access without raising a support ticket.

app.••••••.com.au/admin
Site 4 · people and access+ Invite
NameRoleSitesAccess
JPJ. PatelAdminAll
AKA. KumarSupervisor2
RSR. SinghTechnician1
MLM. LeeTechnician1
Module 03

WBS matrix

Every system against every discipline, coloured by how complete it is, so the gaps show at a glance.

app.••••••.com.au/wbs
WBS matrix · Area 180%+50 to 79%Under 50%
MechElecInstCivilPipeHVAC S-100 Crushing9688711009285 S-200 Grinding906441977781 S-300 Flotation685532946045 S-400 Thickening8480731008666 S-500 Water382922754430 S-600 Power919587988379
Module 04

Search

One search across systems, tags and documents, on the web app and the phone.

app.••••••.com.au/search
pump skid P-1044 results · 0.2 s
P-104 Pump skidSystem · Area 1 · 96% complete
ITR-B · P-104 mechanical checkRecord · signed off 4 Nov
P-104 general arrangement, rev CDrawing · PDF
Punch item 0312 · coupling guardPunch list · open
[05] The resultFigures and quote from the client

The result

+40%Revenue growth the client quotes, across the rebuild and the go-to-market work
6Modules rebuilt or added while the old app kept running
3Platforms from one codebase: the web, iPhone and Android
"NorthStar and its team helped us rebuild our platform with new tech, and market the product to the right ICP with the best GTM plan."
Ben Cash · Director, Parallel Completions
[06] How it runs nowA monthly team

Still shipping, every month.

Since the rebuild, a monthly team of two full-stack developers and a tester ships features, fixes and releases, with a report every month. The team also took the platform through an ISO 27001 and GDPR review.

[07] Use cases this provesBuild the same for you

Three builds this one proves.

Each is a use case with its own page, price range and timeline.

Rebuild a legacy platform on a modern stack

Module by module, with the old app running until each part is replaced.

Use case: platform rebuild →

Support inbox triage that drafts every reply

Tickets tagged and answered in draft, with a person sending every reply.

Use case: inbox triage →

Escalations that arrive with the likely code area

Bug reports that reach engineering already pointing at the file to look in.

Use case: smart escalations →
[08] Next30 minutes · no slides

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