Fastidious Labs Portfolio
Fastidious Labs

Product engineering studio · web, mobile, cloud

Software for work that happens out in the world.

Fastidious Labs turns business ideas and complex challenges into thoughtfully designed digital products. We bring together design, architecture, web and mobile development, back-end systems and cloud delivery—one team, from first sketch through launch and ongoing improvement.

Our work spans The US, Europe, South Asia, New Zealand and Australia.

13products designed and built
600+brand websites running our review widgets
10+industries, from insurance to education
Global reachUS · Europe · South Asia
New Zealand · Australia

Find work like your project

Pick what you need. We’ll point you at the work that matches.

Featured work

Client names withheld. Interfaces redrawn with sample data.

01   Property · Full-stack platform

Every party in a home purchase, in one workspace.

Buyers, inspectors, appraisers and attorneys used to chase each other by email. Now each step has its own documents, payments and chat, on one timeline.

  • Buyer and vendor workspaces with a step-by-step deal timeline
  • Document signing, Stripe payments and real-time chat
  • Serverless AWS back-end with event-driven email
Next.jsTypeScriptAWS LambdaDynamoDBStripe
Buyer workspacesample data

Transaction · in progress

Your next home, coordinated.

Pre-approval ✓Offer ✓InspectionAppraisalClosing
Inspection reportShared with buyer and inspector
Awaiting upload
Inspector chat3 new messages
Open →
Inspection feeCard payment
Paid

02   Sales operations · Mobile + dashboard + API

Field teams log the visit. Managers see it the same day.

Visit notes, site photos, follow-ups and expenses used to live in separate tools. One mobile app captures them, and a dashboard shows each manager their own team.

  • React Native app for visits, photos, reminders and expenses
  • Manager dashboard scoped to each person’s reporting line
  • Two-stage expense approvals enforced by the API
React NativeNext.jsNestJSPostgreSQLMicrosoft sign-in
Field app + manager viewsample data
Today3 visits due
Riverside siteFollow-up today
Central projectAdd photos →
Travel expense2 receipts

Expense approval

Travel expense · sample

✓Submitted by repDone
✓Regional managerApproved
3Zonal headPending

03   Insurance · Geospatial portal · New Zealand

After a disaster, see every claim on the map.

After floods and landslips, insurers get claims in bulk. Here agencies, loss adjusters and engineers upload them in one batch, see them against hazard layers, and track each one to a final report.

  • ArcGIS map with hazard layers and draw-to-filter tools
  • Spreadsheet bulk upload with row-by-row validation
  • Role-based workspaces, status dashboard and PDF reports
ReactArcGISAWS CognitoMicrosoft SSOTanStack Table
Claims triagesample pins
draw to filterhazard zone
ReceivedWith loss adjusterReport complete

04   Consumer brands · Embeddable widgets

One review widget, running on 600+ brand websites.

Hundreds of brand sites needed the same ratings and Q&A, each in its own look and language. We built drop-in widgets and the moderation tool that reviews every submission.

  • Drop-in widgets that load on any host page
  • Per-brand themes, locales and right-to-left layouts
  • Moderation console for text and photo submissions
TypeScriptReactReduxNode.jsMongoDB
Embedded widgetsample content
4.5
5
4
3
Simple to get startedSample reviewer
The setup guide was easy to follow.
Where are the care instructions?Question · answered by brand
600+brand websites worldwide

More we’ve shipped

Nine more products across government, data, education, SaaS and document automation.

Local government · Switzerland

Citizen street reporting

Residents pin a broken light or damaged path on a map, add photos and follow the city’s reply.

ReactLeafletMobile-first

Environmental · NZ & Australia

Weather data, ordered online

Consultants pick a site, years and grid size, pay by card and track their model dataset to delivery.

Next.jsStripeAuth0

Enterprise SaaS

Embedded task workspace

A configurable task table dropped into an existing product without rebuilding its shell.

ReactWeb ComponentsTanStack

Product teams

React design system

Accessible, tested components so every product team builds forms and overlays the same way.

TypeScriptStorybookTailwind

Retail

Product-to-store finder

Shows shoppers which nearby stores carry a product, fed by a pipeline that processes retailer files.

Node.jsPySparkMongoDB

Education

Guided learning app

Assignments, quizzes and answer review for students, with maths, rich text and media.

ReactReduxKaTeX

Health & wellness

Wellness content portal

Articles, exercises and video grouped by topic so readers can find related content easily.

Next.jsSCSSSEO

Recruitment · Full-stack platform

Recruitment platform

Runs a recruitment agency end to end: clients, jobs, screening, placements and invoicing, with AI resume matching.

ReactStrapiMySQL

Document automation · Angular

Document data extraction

Users draw boxes on a scanned document, and the back-end returns the text inside each one.

AngularTypeScriptHTML Canvas

Engineering capabilities

The right technology.
For the outcome you need.

From product experience to the systems behind it. We choose languages, frameworks and infrastructure around your requirements and existing environment.

Capabilities, customer outcomes and representative technologies
What we coverWhat it enables for youTechnologies & approaches
Product design & architectureTurn business needs into clear user journeys and a practical technical plan.UX / UI · design systems · domain modeling · API and data architecture
Frontend & mobile engineeringCreate intuitive customer experiences, internal tools and connected mobile apps.TypeScript / JavaScript · React / Next.js · React Native / Expo · reusable components
Backend & business integrationsConnect systems and automate workflows, permissions, payments and communication.Node.js / NestJS · REST APIs · identity / SSO · WebSockets · payment integrations
Data platforms & processingMake business data usable across applications, reporting and location-based services.SQL / PostgreSQL · MongoDB / DynamoDB · Python / PySpark · geospatial data · ingestion pipelines
Cloud, infrastructure & operationsBuild a repeatable path to deployment, maintenance and application growth.AWS · serverless / containers · CI/CD · database migrations · health checks · automated testing
AI model trainingBring software engineering expertise to model-training work.Grok model-training contribution at xAI · software engineering specialization

Representative experience across the portfolio. The technology mix is tailored to each engagement.

How we work

One partner across
the application lifecycle.

From the first business conversation through design, implementation, deployment and ongoing improvement. We can own the complete solution or work on a focused part of your existing system.

  1. 01 / Discovery

    Understand the business

    Translate goals, users, operational constraints and existing systems into a practical product scope. Prioritize the workflows that create the most value.

    Outputs: workflow map · requirements · delivery roadmap

  2. 02 / Design

    Shape the experience & architecture

    Design user journeys and interfaces alongside domain boundaries, data models, access rules and integration contracts.

    Outputs: prototypes · design system · architecture decisions

  3. 03 / Engineering

    Build the connected product

    Develop web experiences, native mobile applications, dashboards and backend services as parts of one coherent solution.

    Outputs: tested features · APIs · integrations · documentation

  4. 04 / Release

    Prepare, validate & deploy

    Plan environments, configuration, data migrations, build checks and acceptance testing. Define rollout and rollback steps appropriate to the application.

    Outputs: release pipeline · deployment plan · handover

  5. 05 / Maintenance

    Keep the application dependable

    Agree a support model for issue triage, dependency updates, operational monitoring, backup checks and performance work.

    Outputs: runbooks · maintenance plan · agreed service expectations

  6. 06 / Evolution

    Improve as the business changes

    Use feedback and operational evidence to refine workflows, add integrations and extend the platform without losing architectural consistency.

    Outputs: prioritized backlog · enhancements · modernization plan
Build the whole product

Design, front end, back end and cloud for a new platform or app.

Strengthen your team

Software engineers and designers working within your delivery process, with the skills matched to your project.

Take over and maintain

We pick up an existing app, stabilise it and keep it moving.

Product designSystem architectureFrontend engineeringMobile engineeringBackend & APIsData engineeringCloud & infrastructureAI model training

A team built around your project

The right people.
At the right stage.

Our team brings software engineers and designers together to work across product design and delivery. We scale the team up or down to match your project’s scope, timeline and changing requirements.

Define & design

Start with a focused team

Bring design and engineering together early to understand the problem, shape the experience and establish the architecture.

Build & launch

Add capacity where it matters

Expand the team and adjust the skill mix as delivery needs grow, across interfaces, services, integrations and infrastructure.

Maintain & evolve

Adapt as priorities change

Scale down for ongoing support or increase capacity for the next release, with clear documentation and handovers between stages.

Start a project with Fastidious Labs

Got a process stuck in spreadsheets and email?

Tell us what your team does today. We’ll reply with a first take on scope and approach.

hello@fastidiouslabs.com
Email us about a project →Or ask us for a walkthrough of any project above.
Case study

What we built

    Technology

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