Web Development
High-performance websites and web applications built around your business goals, users, and long-term growth.
- React
- Next.js
- Node.js
- PostgreSQL
Custom software development
We build the software businesses run on
A small, senior team designing and shipping web, mobile and custom platforms end to end. You talk to the people writing the code.
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Trusted by teams building with us
We are six people who design, build and maintain software for growing companies. Small enough that you work directly with the engineers. Senior enough that you only explain it once.
Klaas Technologies works with founders and operations teams who need a product built properly the first time, then kept running after launch.
- 40+
- Projects delivered since 2025
- 4
- Countries our clients operate in
- 6
- Specialists, no account managers
- 8 to 12
- Weeks from kickoff to launch
Our Services
From the first call through to launch and the years after it, we bring the technical depth and the business context to build across every layer of your stack.
Mobile App Development
Reliable iOS and Android applications designed to deliver seamless experiences and scale with your business.
- React Native
- Flutter
- Node.js
- Firebase
Custom Software Development
Purpose-built software that solves your unique business challenges, streamlines operations, and grows with your team.
- Node.js
- NestJS
- React
- PostgreSQL
SaaS Development
Scalable SaaS products designed from the ground up, from MVP to production-ready platforms built for real users.
- Next.js
- Node.js
- PostgreSQL
- AWS
AI & Automation
Intelligent solutions that automate repetitive work, connect your systems, and help your business operate smarter.
- OpenAI
- Node.js
- Python
- APIs
UI/UX & Product Design
Thoughtful digital experiences that turn complex ideas into intuitive products people enjoy using.
- Figma
- Design Systems
- Prototyping
- User Research
Shipped, not slideware
Four products in production across events, retail, mobility and marketing, built end to end by the same six people.
- React
- Node.js
- PostgreSQL
An event platform vendors actually use
A two-sided marketplace connecting planners with venues and vendors — real-time availability, bookings, packages and payouts in one system.
- 4
- Months to launch
- 1.2k+
- Vendors onboarded
- 98
- Lighthouse score
- Next.js
- GSAP
- Tailwind CSS
A brand site with the torque to match
A cinematic product site for an electric motorcycle range — scroll-driven reveals, specification comparisons and dealer enquiry routing.
- 2.1s
- Largest contentful paint
- 6
- Models catalogued
- +38%
- Enquiry rate
- Shopify
- Liquid
- Klaviyo
Luxury retail that loads in a heartbeat
A ready-to-wear and unstitched fashion storefront — size and colour variants, consultant chat, and a checkout tuned for the local market.
- +52%
- Conversion lift
- 400+
- SKUs migrated
- 3
- Weeks to launch
- React
- Three.js
- GSAP
An agency site that sells the agency
A capabilities-led site for a web development and marketing studio — animated service orbits, case study routing and lead capture.
- 12
- Services mapped
- +2.4x
- Time on page
- 95
- Lighthouse score
- Python
- FastAPI
- Next.js
- LangChain
Intelligent agent workflows for high-volume customer ops
An enterprise conversational AI orchestration engine handling autonomous ticket resolution, CRM syncing, and multi-lingual voice dispatch.
- 72%
- Autonomous resolution
- 3.4x
- Agent throughput
- < 250ms
- LLM latency
- React Native
- Expo
- Go
- AWS IoT
Seamless parking & access right from the pocket
A cross-platform mobile application with license-plate recognition integration, instant touchless gate clearance, and integrated e-wallet checkout.
- 85k+
- Active drivers
- 4.9★
- App Store rating
- 99.98%
- Barrier uptime
- Flutter
- Dart
- Firebase
- Node.js
Next-gen personal finance built for high velocity
A consumer banking and multi-currency transfer app featuring biometric authentication, real-time FX conversions, and sub-100ms push settlement.
- 140k+
- Monthly transactors
- 4.9★
- App Store rating
- <100ms
- Transaction latency
- React Native
- Expo
- HealthKit
- GraphQL
Personalized athletic coaching synced with wearables
A cross-platform fitness companion with live biometric telemetry, offline workout caching, and adaptive training algorithms.
- 50k+
- Active athletes
- 60 FPS
- Native gesture rate
- +44%
- 30-day retention
- Node.js
- NestJS
- PostgreSQL
- Redis
- Docker
Centralized operations for multi-hub supply chains
A bespoke ERP and automated inventory dispatch engine replacing three disconnected legacy tools with real-time telemetry and sub-50ms audit logging.
- 3.2x
- Throughput speed
- 0 ms
- Inventory sync lag
- 99.99%
- System availability
We don't just build software. We build it to work.
From the first conversation to launch and beyond, we combine strong engineering with a clear understanding of your business. You work directly with the people designing and building your product, without unnecessary layers between you and the team.
- Product design
- UX research
- Frontend
- Backend
- Infrastructure
- QA
01
Senior Expertise
Experienced designers and developers working directly on your product.
02
Business-First Thinking
We solve real business problems, not just build features.
- Your workflows
- Your goals
- Your users
03
Built for Your Needs
Custom solutions designed around your workflows, goals, and users.
- Clean code
- Thoughtful UX
- Strong performance
- Reliable architecture
04
Quality by Default
Clean code, thoughtful UX, strong performance, and reliable architecture.
- Interface
- API
- Data
05
Built to Scale
Technology that can evolve with your users, features, and business.
- Launch
- Support
- Improvements
- What's next
06
Beyond the Launch
We stay with you after launch for support, improvements, and what's next.
Our industry expertise
Technology built around your business.
Every industry has its own challenges, workflows, and customers. We build digital solutions around the way your business actually works.
01Real Estate
- Property Platforms
- Property Management
- CRM
- Booking Systems
- Real Estate Portals
We build digital platforms that help real estate businesses manage properties, listings, leads, bookings, and customer relationships in one place.
02Retail & E-Commerce
- E-Commerce
- Shopify
- WooCommerce
- Inventory
- Payment Integrations
We create seamless online shopping experiences with powerful storefronts, inventory systems, payment integrations, and tools designed to help retail businesses grow.
03Food & Hospitality
- Food Ordering
- Restaurant Platforms
- Booking Systems
- Delivery
- Customer Apps
We build digital experiences that make ordering, booking, and managing hospitality operations easier for both businesses and their customers.
04Field Services & Operations
- Workforce Management
- Job Scheduling
- Booking Platforms
- Worker Tracking
- Dashboards
We develop solutions that connect customers, workers, and management while simplifying bookings, scheduling, job tracking, and everyday operations.
05Startups & SaaS
- MVP Development
- SaaS Platforms
- Product Development
- Multi-Tenant Systems
- API Integrations
We help startups turn ideas into working products, from early MVPs to scalable SaaS platforms built for real users and growing businesses.
Have a business challenge to solve? Let's build the technology around it.
The stack we build on
Chosen for what the work needs, not for what is trending. Grouped by the job it does, so you can see what would actually be used on your project.
44 tools across 8 disciplines
- 01
Frontend
The part people actually touch.
- React
- Next.js
- TypeScript
- Tailwind CSS
- GSAP
- Three.js
- 02
Backend
The part that has to stay up.
- Node.js
- NestJS
- Express
- Python
- GraphQL
- 03
Database
Where the business actually lives.
- PostgreSQL
- MySQL
- MongoDB
- Redis
- Prisma
- Supabase
- 04
Native mobile
When the platform's own tools are the right call.
- Swift
- SwiftUI
- Kotlin
- Jetpack Compose
- 05
Cross platform
One codebase, both stores.
- React Native
- Expo
- Flutter
- Dart
- Firebase
- 06
CMS and commerce
So your team can edit and sell without booking us first.
- WordPress
- Sanity
- Payload
- Shopify
- Liquid
- Klaviyo
- 07
DevOps and cloud
Shipping it, and knowing before you do when something breaks.
- AWS
- Vercel
- Docker
- GitHub Actions
- Cloudflare
- Nginx
- 08
AI and automation
Removing the manual steps, not bolting on a chatbot.
- OpenAI
- LangChain
- pgvector
- Whisper
- n8n
- Zapier
What clients say
We came in with a spreadsheet and a lot of opinions, and they turned it into something our vendors log into every day. Nobody has asked for the spreadsheet back.