Services • Cloud & Back-end Engineering

Cloud Backends Engineered to Scale

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Cloud Architecture
APIs & Microservices
DevOps & CI/CD

cloud-console / production Operational

Requests / sec 12.4k

p95 latency 42 ms API Gateway

Uptime 99.99% Last 90 days

Services

Core Capabilities

3 Specialized Domains

01

APIs & Microservices

High-throughput event streaming and gRPC messaging.
- Kafka
- gRPC
- Go
02

Cloud IaC & DevOps

Reproducible Terraform blueprints and automated K8s pipelines.
- Terraform
- K8s
- AWS/GCP
03

High-Speed DBs

Multi-master read replicas and sub-millisecond Redis caching.
- PostgreSQL
- Redis
- ClickHouse

How we work

Our Proven Engineering Process

From initial discovery to enterprise scaling, explore our 4-stage delivery pipeline. Hover over each circle to inspect the milestone deliverables.

Self-HealingAuto-restarts pods
SOC2 & HIPAAFull audit trail
Fast FailoverRTO under 3m
FinOps Trim>30% compute cut

A 2 Million Euro Feature Project Delivered to an EU Client

RyseUp Wellness Device

ExtreemTek supported a connected wellness ecosystem, bringing smart hardware together with mobile, desktop, web, cloud and operational platforms.

iOS and Android appsNative mobile performance

Windows and macOS appsDesktop client builds

Smart-device connectivityBLE and Wi-Fi communication

RyseUp platform shown on desktop, tablet and mobile

RyseUp wellness mobile app screens on three phones

RyseUp wellness devices with the companion mobile app

Connected hardware & app

Cloud and back-end servicesScalable data structures

Website and online storeE-commerce transactional flow

CMS and reseller platformsPartner distribution controls

FAQ

Cloud Operations FAQ

Answers to common questions about ExtreemTek's cloud operations services.

What cloud services does ExtreemTek offer?

ExtreemTek designs, builds and runs cloud back ends: cloud architecture, APIs and microservices, DevOps and CI/CD pipelines, and high-speed databases. We set up auto-scaling and zero-downtime deployments so your product stays fast and available as it grows.

Which cloud platforms and tools does ExtreemTek use?

We work on AWS and Google Cloud, with Terraform for infrastructure as code and Kubernetes for container orchestration. Our back ends use Go, Kafka and gRPC, with PostgreSQL, Redis and ClickHouse for data, and Cloudflare at the edge.

What is a zero-downtime deployment?

A zero-downtime deployment releases a new version of your software without taking it offline. With a blue/green rollout, the new version runs next to the current one and traffic switches over only when it is healthy, so users never see an outage and you can roll back instantly.

How does ExtreemTek build a scalable cloud back end?

We build in layers: a Cloudflare edge with CDN caching, WAF, TLS 1.3 and DDoS protection; an API gateway with mTLS, JWT authentication and rate limiting; and a Kubernetes fleet with horizontal pod auto-scaling, gRPC communication and self-healing services.

Can ExtreemTek take over or modernize an existing back end?

Yes. Besides new builds, we scale existing products and modernize legacy technology, including moving older systems to a modern, containerized cloud back end with automated deployments.

Practical guides

Guides for product teams

Hardware, firmware, app and cloud from one teamHow end-to-end product engineering works, step by step.Read the guide →App development cost in the Netherlands (2026)Price ranges by app type, Dutch hourly rates, timelines and maintenance.Read the guide →What does an AI development company cost?Day rates and budgets from discovery and proof of concept to production.Read the guide →

Start a conversation

Let's Discuss What You Are Building

Tell us where you are in your product journey and what is preventing you from moving forward. We will help you identify a practical next step.

Aqeel Wahlah Founder and CEO ExtreemTek, Eindhoven, Netherlands

I personally join the initial conversation to understand your product goals and ensure we bring the right technical expertise to the discussion.

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