cloudNX provides Fractional CTO services, Sovereign AI Architecture, and AI Migration for high-growth companies. We bridge the gap between keeping the lights on and multiplying revenue.
$1,500,000+ billed on Upwork with 100% Job Success, 12,000+ hours, and full contract history visible.
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Every contract, rating and review from 2016–2020 is visible on Upwork.
Alexander L. was the "break glass in emergency" engineer. With 100% Job Success, he specialized in fixing critical outages that other agencies couldn't solve.
Revenue milestone compensation
Started as CTO. Saw untapped growth potential. Negotiated revenue-share agreement, took ownership of digital marketing, and delivered 7x growth over 5 years.
We paused new client intake to embed with Alvatek Electronics. We led a complex Legacy-to-Hybrid Cloud + On-Premises migration while simultaneously overhauling the digital marketing stack to drive 7x revenue growth.
"June 2025: Successfully handed over operations to the replacement team. Full systems documentation delivered."
Escalation partner for high-severity incidents and scaling projects in multi-million-dollar environments.
We are the escalation point for critical outages. If your team has been stuck on a "High Traffic Cluster" issue for weeks, we fix it in hours. We diagnose unfixable 502 errors, database locks, and DDoS attacks.
We architect systems for extreme load, from High-Frequency Trading platforms requiring microsecond latency to High-Traffic E-Commerce clusters serving 2 million users. We optimize for raw throughput and zero downtime.
Privacy. Security. Total Control.
Your data is your competitive advantage. Don't leak it to public APIs. We architect secure, on-premises AI pipelines that run inside your VPC or on bare metal.
Air-gapped deployments. GDPR compliance by design. No data ever leaves your VPC.
Eliminate per-token fees. Run 70B models flat-rate on owned hardware (CapEx vs OpEx).
Analyze sensitive financial or legal documents offline with secure RAG pipelines.
Self-hosted "Copilot" alternatives that don't train on your proprietary IP.
Train open-weight models on your specific corporate knowledge base.
Transform business logic with the world's most powerful frontier models.
We don't bet on one horse. We architect model-agnostic gateways that route your prompts to the best-in-class provider for the specific task—whether that's reasoning, creativity, or coding.
Move beyond "chatbots." We deploy autonomous agents capable of performing actions: processing refunds, updating bookings, and resolving complex Tier-1 tickets without human intervention.
Scale your brand voice. We build pipelines that generate hyper-personalized content, newsletters, and ad copy in real time, strictly adhering to your company's tone and style guidelines.
Streamline the back office. We utilize high-context models to ingest and process massive archives of invoices, legal contracts, and compliance documents with near-human accuracy.
Accelerate velocity. We integrate advanced reasoning models into your CI/CD pipelines to assist with legacy code refactoring, automated test generation, and complex architectural planning.
Talk to your data. We convert unstructured data lakes into queryable knowledge bases, allowing executives to ask plain English questions and receive predictive forecasts and trend analysis.
cloudNX is a principal-led practice. Alexander Liemen is a Triple-Certified AWS Solutions Architect who chose molecular biology over computer science — not as a fallback, but because he'd been programming since age 8 and was already running a 2-million-user web hosting platform by university.
This was pre-cloud. Clustering meant hand-built servers, each hosting 50,000 users — only possible by patching MySQL's connection/authentication handling, hardening PHP's filesystem isolation, and writing custom Apache modules for injection-safe analytics.
The kind of work that doesn't exist anymore because AWS abstracted it away.
Molecular Biology was simply what he was curious about — how genetics and complex systems actually work. The field was decades from practical application then. With AI, that's finally changing.
"You can teach a physicist finance, but you can't teach a finance person physics."
— Jim Simons, Renaissance Technologies
With 20+ years of experience, Alexander approaches infrastructure the same way:
"Most professional contractor we have worked with yet... Available pretty much 24/7."
— AWS/Azure Retainer Client
We are selective. Tell us about your scaling challenges.
cloudNX Limited
Centris Business Gateway II SALIB TAL
IMRIEHEL STR ZONE 3 CENTRAL BUSINESS DISTRICT
Birkirkara, CBD 3020
Malta
Director: Alexander Liemen
Email:
Register: Malta Business Registry
Reg. No: C 84341
VAT: MT24856834
EU Commission platform for online dispute resolution: https://ec.europa.eu/consumers/odr. We are neither obligated nor willing to participate in a dispute settlement procedure before a consumer arbitration board.
Controller: cloudNX Limited, Malta. (See Imprint)
Purpose: Evaluating your application for a strategic consult.
Legal Basis: GDPR Art. 6(1)(b) (Pre-contractual measures) and Art. 6(1)(f) (Legitimate interest in security).
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