Software · AI · End-to-end products
We transform bold business ideas into exceptional digital products
HIIS [haɪ-ɪz] pronounced High-is is a full-service software development company with extensive experience building large-scale AI, backend, web, and mobile applications.
Why HIIS
You share your idea. We get it done.
Carefully chosen technology, security by default, and senior engineers who move fast.
Good performance
We pick our stack to build highly performant, scalable and concurrent applications.
Highly secure
Security at the core — systems designed and built to industry standards.
Fast development
Cut time-to-market by up to 50% with a team of senior engineers.
Trusted by teams across Africa and Europe
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What we do
End-to-end product engineering
From AI and backend to web and mobile , one team, the whole journey.
Where we've shipped
Deep domain experience across the sectors that move fastest , from public institutions to crypto exchanges.
AI at the core
Production-grade AI, not just demos
We design and ship AI that holds up in production — retrieval-augmented assistants, LLM-powered workflows, ML pipelines and intelligent automation — wired into robust backends and polished web & mobile experiences.
Explore AI solutions- LLM & RAG applications
- ML pipelines & MLOps
- Computer vision & NLP
- AI-powered automation
We build across the leading AI platforms
One team, the whole stack
We go deep across mobile, web, backend, cloud and AI — so your product is built and run by one accountable team.
Explore technologiesOur engineering stack
- Flutter
- React
- Next.js
- Scala
- Java
- Python
- Node.js
- Kotlin
- Swift
- Android
- Apple
- MongoDB
- PostgreSQL
- Docker
- Kubernetes
- TensorFlow
- PyTorch
- GraphQL
- Flutter
- React
- Next.js
- Scala
- Java
- Python
- Node.js
- Kotlin
- Swift
- Android
- Apple
- MongoDB
- PostgreSQL
- Docker
- Kubernetes
- TensorFlow
- PyTorch
- GraphQL
A clear path from idea to scale
- 01
Discover
We dig into your goals, users and constraints to define what success looks like.
- 02
Design
We shape the architecture and experience , interfaces, data models and APIs.
- 03
Build
We ship in short iterations with tests, reviews and continuous delivery.
- 04
Launch
We harden, secure and release , then monitor closely from day one.
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Scale
We optimize, extend and support as your product and users grow.
Testimonials
Trusted across industries
From public institutions to crypto exchanges, teams choose HIIS to ship software that performs , and they say so.
- AI
“We carried decades of legacy systems. HIIS delivered secure, well-documented APIs and an AI document-classification pipeline in Python and Hugging Face that cut manual processing by 60%.”
Claire MensahHead of Modernisation · National Records AgencyGovernment “HIIS built our spot exchange, order book, wallets and KYC, to take real volume under load. We have run at sub-50ms order latency and 99.99% uptime since launch.”
Marco RossiFounder & CEO · Vertex ExchangeFinance & Crypto“Our headless storefront on Next.js loads in under a second and conversion is up 38%. HIIS sweated every Core Web Vital.”
Isabelle MoreauVP of Ecommerce · Lumière Retail GroupEcommerce- AI
“HIIS built offline-first farm-management tools that sync the moment our growers get signal, plus TensorFlow yield-forecasting models, output up 22% and waste down 30%.”
Aïcha TraoréChief Executive Officer · GreenField AgritechAgriculture “HIIS delivered a HIPAA-compliant telehealth platform, secure video, scheduling and e-prescriptions, that our clinicians actually enjoy using. Wait times fell 45%.”
Dr. Sarah ChenChief Medical Officer · Lumen HealthHealth
- AI
“The mobile banking app HIIS shipped in Flutter feels instant, and their real-time AI fraud-scoring models caught threats we were missing, dropping fraud losses by 40%.”
David OkekeHead of Digital Banking · Meridian Retail BankBanking - AI
“HIIS built a multilingual semantic search engine across 20+ African languages using RAG, OpenAI and a vector pipeline, sub-300ms over 100M+ documents.”
Olivier NkurunzizaFounder · Sahara AISearch - AI
“The AI recommendation engine HIIS built lifted our average order value noticeably, personalised discovery that genuinely converts.”
Mei LinChief Digital Officer · StyleNestEcommerce “Our core payments engine, re-engineered by HIIS in Scala and Kafka, clears five million transactions a day at sub-100ms latency. It has stayed rock-solid through every peak.”
Sophie LaurentChief Technology Officer · Atlas Commercial BankBanking
Live across Cameroon, expanding across the globe.
A growing network of teams, clients and partners in the cities that matter.
- 14
- Countries served
- 30+
- Cities
- 4
- Continents
- 40+
- Partners
Have a project in mind?
Tell us about it , we'll get back to you within 48 hours.