Fractional CTOParisInsightrix SASU

I Build AI That Ships to ProductionFractional CTO | AI Strategist & MVP Builder

I architect production-grade AI systems built to ship: intelligent RAG pipelines, autonomous agents, and sovereign LLM infrastructure that stands up to compliance, scale, and scrutiny.

Whether you're a founder mapping a technical roadmap or a team racing to launch an AI product, I close the gap between cutting-edge generative AI and real business impact, with systems built secure by design, compliant by default, and engineered to win.

Aru Bhardwaj - Freelance AI Developer, ChatGPT Expert, Claude AI Specialist, Data Scientist in Paris specializing in OpenAI, LLMs, generative AI, machine learning, NLP, and predictive analytics

Email

bonjour@arubhardwaj.eu

Phone

+33 (0) 766985210

Location

Paris, France & Remote

Aru Bhardwaj

With 7+ years across AI and data engineering, I serve as a Fractional CTO for startups and scale-ups turning complex data into production intelligence. My specialty: architecting sovereign AI solutions, from custom ML models and agentic RAG systems to secure predictive pipelines running on European infrastructure.

I don't just build models; I build the scalable, audit-ready technical foundations that compound in business value over time and keep your data under European jurisdiction.

Professional Services

Working With Me

Every engagement is scoped around outcomes the business needs, not hours billed. Pricing and structure are agreed in writing after a discovery call, tailored to your stage and constraints.

  • Senior-led, hands-on technical delivery
  • Outcome-scoped proposals, not hourly meters
  • Weekly written progress, confidentiality by default

Start with a 30-min discovery call

Aru Bhardwaj - Fractional CTO, AI Strategist & MVP Builder based in Paris, specializing in sovereign AI infrastructure, RAG systems, and GDPR-compliant LLM deployments across Europe

Aru Bhardwaj

How We Work Together

Discovery Sprint

3-5 days

A paid 3-5 day scoping engagement. Stack audit, team assessment, roadmap, and a written proposal. Often credited toward the work that follows.

Fractional CTO Retainer

From 2-3 days/month

Senior technical leadership embedded with your team. Roadmap, architecture, hiring, vendor selection, regulatory advisory. Cadence scales with traction.

Startup-Friendly

Partnership

Fee + Equity

Reduced cash component traded against equity. For aligned early-stage startups where mission, market, and milestone path are clear on both sides.

Service fee always applies. Pure-equity engagements are not offered.

Discuss Engagement →

Engagement structure and pricing tailored per client. Most start with a 60-min scoping call or a paid discovery sprint.

AI & Machine Learning Expertise

Comprehensive AI and data science solutions tailored to transform your business challenges into competitive advantages.

ChatGPT, Claude & LLM Solutions

Custom integrations with ChatGPT, OpenAI, Claude AI, and other large language models. RAG pipelines, fine-tuning, AI agents, agentic workflows, and AI chatbot development

Deep Learning Specialist

Expert in CNN, RNN, LSTM, Transformer architectures using TensorFlow/PyTorch

Advanced ML Algorithms

Mastery of Random Forest, XGBoost, SVM, and ensemble methods for optimal predictive accuracy

Generative AI & Prompt Engineering

Production-ready generative AI solutions: text generation, image AI, sentiment analysis, multimodal AI, AI agents, and intelligent prompt engineering for GPT-4, Claude & Gemini

MLOps & Deployment

Streamlined model deployment with monitoring and maintenance for sustainable AI solutions

Statistical Analysis & Modeling

Proficient in Hypothesis Testing, Mixed Models, ARIMA, and more advanced statistical methods

Additional Key Skills

Data Visualization & Dashboards

Advanced skills in ggplot2, matplotlib, and R Shiny for insightful visual presentations

NLP & Text Analysis

Competent in clustering, text generation, and sentiment analysis

Geospatial & Biostatistical Analysis

Proficient in applying computational methods to biostatistics and geospatial data

Multi-Cloud AI Platforms

AWS (SageMaker, Bedrock, EC2, Lambda), Google Cloud Vertex AI (Gemini, Model Garden, AutoML), Azure OpenAI Service. Portable AI workloads across providers.

EU Sovereign Cloud & GDPR AI

GDPR-compliant AI on European infrastructure: OVHcloud, Scaleway, Hetzner. Mistral AI, Aleph Alpha, open-source LLMs. Full data sovereignty for regulated industries.

Data Scraping & ETL Processes

Efficient in extracting and processing large datasets

Industries Served

I have successfully delivered AI and data science solutions across diverse industries, helping organizations unlock the power of their data.

Management Consulting

Healthcare

Technology

Marketing

Real Estate

Government

Luxury

Political Campaigns

Don't see your industry listed? I work with businesses across all sectors.

Discuss Your Industry Needs

What Sets Me Apart

Beyond technical expertise, I bring unique value propositions that make me the ideal data science partner for your business.

AI Strategy Consulting

Not just implementation, but strategic guidance on AI adoption to maximize ROI

Rapid Prototyping

Quick proof-of-concept development to validate AI solutions before full investment

Explainable AI

Making complex models interpretable for stakeholder buy-in and trust

Flexible Collaboration

On-call support and timezone-aligned project updates for seamless communication

Special Rates

Discounted services for non-profits and startups to support innovation

End-to-End Ownership

From ideation to deployment and monitoring: I own the full lifecycle so nothing falls through the cracks

Ready to experience the difference? Let's discuss how I can help transform your data challenges into opportunities.

Frequently Asked Questions

Quick answers to the questions I get most often. Still not sure? Book a call, the first answer is on me.

Get the playbook

Short, practical AI essays for founders, CTOs, and Heads of AI. One email a month. Unsubscribe anytime.

Book a Consultation

Ready to transform your data into actionable insights? Let's discuss your project and explore how AI can drive your business forward.

Contact Information

Location

Paris, France (Remote)

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Trusted by founders and teams across fintech, healthtech, luxury, and the public sector in France, Germany, the UK, and the Middle East.

Aru Bhardwaj

Fractional CTO architecting sovereign AI systems for startups and scale-ups across Europe. Custom ML, agentic RAG, and secure LLM infrastructure. 7+ years turning complex data into production intelligence.

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Services

  • Fractional CTO & AI Strategy
  • MVP Development & Rapid Prototyping
  • Sovereign LLM Deployment (OVHcloud, Scaleway)
  • Multi-Cloud AI (AWS Bedrock, Vertex AI, Azure)
  • RAG Pipelines & Autonomous Agents
  • GDPR & EU AI Act Compliance
  • Generative AI & Prompt Engineering
  • Machine Learning & Predictive Analytics

Monthly playbook

Practical AI essays for founders and tech leaders. One email a month.

Tactical AI essays, monthly.

© 2026 Insightrix SASU. All rights reserved.Aru Bhardwaj, Fractional CTO & AI Strategist

60 Rue François Ier, 75008 Paris, France · SIRET 989 236 856 00013 · TVA FR42989236856