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NoxStack Hq — Custom Software Development Company NoxStack Hq Logo

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Global Software Engineering Company

End-to-End Engineering
Services for Companies
That Refuse to Compromise

NoxStack Hq engineers AI systems, enterprise platforms, cloud infrastructure, mobile applications, and cybersecurity solutions for ambitious startups and global enterprises. Every engagement is grounded in senior-level engineering, transparent delivery, and code built to outperform for years not months.

25+ Projects Shipped
20+ Startups Scaled
5+ Countries Served
99% On-Time Delivery Rate
React & Next.js TensorFlow & PyTorch Flutter & React Native AWS & Azure & GCP Kubernetes & Terraform Node.js & Python PostgreSQL & MongoDB Java & .NET Zero Trust Security OWASP & SOC 2 React & Next.js TensorFlow & PyTorch Flutter & React Native AWS & Azure & GCP Kubernetes & Terraform Node.js & Python PostgreSQL & MongoDB Java & .NET Zero Trust Security OWASP & SOC 2
What We Build

Six disciplines.
One engineering partner.

We are not a generalist agency that takes any project. We are a specialist engineering firm with deep expertise in six interconnected disciplines so when your AI system needs cloud infrastructure and your cloud needs securing, you don't manage three vendors. You call us. Talk to an engineer.

AI & Machine Learning

We build AI systems that actually ship from custom LLM integrations and predictive analytics engines to computer vision pipelines and intelligent automation workflows.

  • + TensorFlow
  • + PyTorch
  • + LLM APIs
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Web Development

High-performance SaaS platforms, e-commerce stores, and web apps built with React and Next.js Lighthouse scores above 95, Core Web Vitals that rank, UX that converts.

  • + React
  • + Next.js
  • + Node.js
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Mobile App Development

Native iOS, Android, and cross-platform apps using Flutter and React Native sub-2-second loads, offline-first sync, and 4.5-star ratings from day one.

  • + Flutter
  • + React Native
  • + Swift
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Enterprise Software

Custom ERP, CRM, and BI systems precisely engineered to your workflows eliminating off-the-shelf compromise and improving operational efficiency by up to 60%.

  • + Java
  • + .NET
  • + Python
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Cloud & DevOps

Cloud migrations, Kubernetes orchestration, and CI/CD automation on AWS, Azure, and GCP reducing costs by up to 40% while achieving verified 99.9% uptime SLAs.

  • + AWS
  • + Kubernetes
  • + Terraform
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Cybersecurity

Penetration testing, zero trust architecture, SAST/DAST scanning, and compliance engineering for GDPR, SOC 2, and ISO 27001 regulated environments security built in.

  • + Pen Testing
  • + Zero Trust
  • + SOC 2
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In Detail

Every service. Every capability.
Explained in full.

Each of our six engineering practices is staffed by specialists not generalists reassigned for convenience. Here is exactly what you get when you engage NoxStack Hq for any of our core services.

AI & Machine Learning Engineering 01 AI/ML

AI & Machine Learning Engineering

We build AI systems that ship to production not experiments that live in Jupyter notebooks. From custom LLM integrations and predictive analytics pipelines to real-time computer vision systems, we engineer AI that delivers measurable ROI within the first quarter of deployment. Every system includes MLOps infrastructure for automated model monitoring, retraining pipelines, and data drift detection.

TensorFlowPyTorch OpenAI APIMLflow
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Web Application Development 02 Web Dev

Web Application Development

We design and build web applications that convert visitors into customers and customers into advocates. From multi-tenant SaaS platforms to headless e-commerce stores and progressive web apps, we build with React and Next.js achieving Lighthouse scores above 95, Core Web Vitals that rank, and interfaces engineered with both UX psychology and full-stack precision.

ReactNext.js Node.jsPostgreSQL
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Mobile App Development 03 Mobile

Mobile App Development

We build mobile applications that users actually enjoy apps with sub-2-second load times, smooth 60fps animations, offline-first data sync, and the UX polish that earns 4.5-star store ratings on launch day. Using Flutter for cross-platform excellence and Swift/Kotlin for native performance, we engineer apps that work flawlessly on every device, screen size, and network condition.

FlutterReact Native SwiftKotlin
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Enterprise Software Development 04 Enterprise

Enterprise Software Development

Off-the-shelf software is a compromise built for the broadest possible market it fits your business the way a generic suit fits a specific body. We build bespoke ERP, CRM, and BI systems precisely engineered to mirror your workflows and your growth ambitions. The result: operational efficiency improvements up to 60%, elimination of manual data entry, and software that scales without re-licensing fees.

Java.NET MicroservicesGraphQL
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Cloud & DevOps Engineering 05 Cloud

Cloud & DevOps Engineering

We migrate, modernise, and manage cloud infrastructure on AWS, Azure, and GCP making your systems more resilient, more observable, and significantly less expensive to run. From Kubernetes cluster architecture and CI/CD pipeline automation to Infrastructure-as-Code with Terraform and real-time observability with Prometheus and Grafana, we build cloud environments that achieve 99.9% uptime SLAs and cost up to 40% less.

AWSKubernetes TerraformGrafana
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Cybersecurity Engineering 06 Security

Cybersecurity Engineering

Security cannot be an afterthought. We embed security engineering throughout the entire development lifecycle from threat modelling in the design phase, through SAST/DAST scanning during development, to penetration testing and compliance certification before launch. We design zero trust architectures, implement secrets management, and engineer compliance programmes for GDPR, SOC 2, and ISO 27001. Our clients pass their audits. First time.

Pen TestingZero Trust OWASPISO 27001
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Featured Capability

AI Engineering That Moves From Prototype to Production Revenue

AI is no longer optional. Companies that deploy intelligent systems outcompete on speed, personalisation, and insight. At NoxStack Hq, we build AI infrastructure that is not experimental it is production-grade, battle-tested, and engineered to deliver measurable ROI within the first quarter of deployment.

We have shipped AI systems that reduced customer support costs by 55%, increased e-commerce conversion by 34%, and cut manual data processing time from 8 hours per day to under 12 minutes using models trained on our clients' own data, owned entirely by them.

  • Custom LLM integrations tailored to your proprietary data and workflows
  • Predictive analytics engines with 90%+ accuracy baselines on your datasets
  • Real-time computer vision pipelines for manufacturing, retail, and logistics
  • Intelligent chatbots with context memory and multi-turn conversation
  • MLOps infrastructure for automated model retraining and drift monitoring
Explore AI Engineering
AI & Machine Learning Engineering
Custom Software Development
Custom Software

Bespoke Software That Gives You a Genuine Technical Advantage

Off-the-shelf software is built for the broadest possible market which means it fits your business the way a generic suit fits a specific body. NoxStack Hq builds bespoke software architectures that mirror the exact shape of your business, your workflows, and your growth ambitions.

The companies that win are not those with the biggest budgets they are the ones with software that does exactly what their business needs, at the exact moment it needs it. We engineer that competitive edge into every codebase we ship.

  • Full-stack SaaS platforms built from the ground up with your users in mind
  • ERP and CRM systems that replace expensive annual SaaS licenses
  • Multi-tenant architecture for companies serving multiple clients or markets
  • Microservices built for independent scaling and zero-downtime deployment
  • RESTful and GraphQL APIs engineered for seamless third-party integration
Discuss Your Project
How We Deliver

From first call to
production launch in 5 phases.

Our delivery process is engineered to eliminate ambiguity, compress timelines, and ship great software consistently regardless of scope, complexity, or geography. Every phase has defined outputs, approvals, and accountabilities.

Phase 01

Discovery & Architecture

We map your requirements, audit technical constraints, and produce a formal Architecture Design Document with technology stack justification, system topology diagrams, and security zone definitions all signed off before a single line of code is written.

Phase 02

Design & Sprint Planning

UX wireframes, interactive Figma prototypes, and a detailed sprint plan with itemised deliverables and milestone dates. You review and approve every design decision before development begins. No assumptions, no surprises.

Phase 03

Engineering & Integration

Full-stack development executed in two-week sprints with weekly live demos. Every sprint closes with working software — not progress reports. Code is reviewed by senior engineers, deployed to staging, and always accessible for your review in real time.

Phase 04

QA, Security & Launch

Automated test suites covering unit, integration, and E2E scenarios. OWASP Top 10 validation, load testing at 2× projected peak traffic, and full UAT before production. Launch is coordinated with rollback coverage on standby throughout go-live.

Phase 05

Support & Scale

30-day dedicated post-launch support included in every engagement at zero additional cost — bug fixes, performance tuning, and compatibility updates. Ongoing retainer or project-based support available for continued iteration and scaling.

25+

Software projects shipped to production and serving live users globally

20+

Startups scaled from MVP to Series A-ready infrastructure

40%

Average infrastructure cost reduction delivered to cloud migration clients

99%

Projects delivered on schedule across all engagements since 2025

Client Results

Don't take our word for it.
Take theirs.

Every testimonial below comes from a client who has live, working software in production built by NoxStack Hq, running without issue, and generating real business value today.

★★★★★

NoxStack Hq rebuilt our entire payment infrastructure from a legacy PHP monolith to a microservices architecture in 14 weeks. The system now processes 40% more transactions at 60% lower infrastructure cost. They didn't just build software — they gave us a genuine competitive edge that took our competitors years to build.

★★★★★

We interviewed eight agencies. We chose NoxStack Hq because they were the only team that arrived at the first call with architectural questions not a sales deck. They shipped our MVP in 8 weeks, helped us get into YC interviews, and the codebase was so clean that two new engineers onboarded to it with zero issues.

★★★★★

The zero trust security architecture NoxStack Hq designed for us passed our ISO 27001 audit on the first attempt no exceptions, no remediation required. I have worked with security consultants who charge three times as much and deliver a fraction of the technical rigor. These engineers are the real deal.

Included in Every Project

Our minimum bar. Not our selling points.

These are not upsells. They are not optional extras. They are the non-negotiable standard we hold every engagement to — from a two-week MVP to a 12-month enterprise platform build.

Architecture Design Document

A formal technical document covering system topology, data flow diagrams, security zone definitions, and technology choices with written justifications delivered and signed off before development begins, every time.

Weekly Live Software Demos

Every sprint closes with a live walkthrough of the working software not a report, not a screenshot gallery. You see what was built, interact with it directly, and give feedback to the engineers who wrote it.

Automated CI/CD Pipeline

Continuous integration and deployment from sprint one automated testing, staging environment with feature flags, one-click production deploys, and full rollback capability. Shipped into your infrastructure, owned by you.

OWASP Security Review

Every codebase reviewed against OWASP Top 10 before launch authentication security, input validation, dependency scanning, secrets management, and data encryption verified as a condition of launch approval.

Full Source Code Ownership

Complete IP transfer on delivery. Annotated source code, technical documentation, CI/CD configuration, and architecture diagrams deposited into your repository on final delivery day. No strings attached, no hidden clauses, ever.

30-Day Post-Launch Support

A dedicated 30-day support window after go-live, covering bug fixes, performance tuning, browser and OS compatibility updates, and monitoring alert response included in every engagement at zero additional cost, no exceptions.

Trusted By

Companies from Lagos to London to San Francisco trust NoxStack Hq with their most critical systems.

NoxStack Hq client partner logo
NoxStack Hq client partner logo
NoxStack Hq client partner logo
NoxStack Hq client partner logo
NoxStack Hq client partner logo
NoxStack Hq client partner logo

Work with us

The best time to start was yesterday.
The second best time is right now.