Entrepreneur & CTO

Ciprian (Chip) Rarau

Systems thinker and hands-on builder with 25+ years across tech, product, and business. I've built companies from scratch, scaled platforms to millions in revenue, and delivered high-performance systems that keep growing.

Currently leveraging AI to unlock new areas of business that were previously unimaginable. If you're building something and need a partner who can move across code, product, and business with speed and care—let's talk.

About me

I'm an entrepreneur, systems thinker, and hands-on builder with over 25 years of experience across tech, product, and business. I've built companies from scratch, scaled platforms to millions in revenue, and delivered high-performance systems that keep growing.


I'm not just writing code—I'm deeply involved in every part of the business. From architecture to AI, product to marketing, hiring to strategy. I see the full picture, and I act on it.


What drives me right now is the shift we're living through. AI isn't just speeding things up—it's unlocking entire areas of business that were previously unimaginable. I work with B2B, B2C, B2N, across industries like health, hospitality, and performance management.


Connect with me to discuss your next technical challenge or venture:

Projects

A selection of ventures I've founded, co-founded, or contributed to as CTO

WISK.ai
Next-level food & beverage intelligence platform

Role:

CTO/CPO, Co-Founder (2016 - Jan 2025)

Description:

WISK is a next-level food & beverage intelligence platform built for the hospitality industry—serving restaurants, bars, hotels, and distributors across multiple countries. With an extraordinary team, I built WISK from the ground up into a robust, real-time system that powers inventory, ordering, costing, and analytics for thousands of venues. We went from zero revenue to a multi-million dollar business.

Mentorly
AI-powered mentorship platform

Role:

CTO/CPO (Jan 2025 - Present)

Description:

AI-powered mentorship platform connecting professionals with the perfect mentors to accelerate career growth. Using advanced machine learning algorithms for intelligent matching and personalized career development recommendations.

Eli Health
Digital health platform

Role:

Technical Advisor (Apr 2025 - Present)

Description:

Digital health platform focused on improving patient outcomes and healthcare accessibility. Building innovative solutions that combine telehealth, AI-powered clinical decision support, and comprehensive patient engagement tools to transform healthcare delivery.

Alvéole
Urban beekeeping platform

Role:

Advisor (Jan 2023 - May 2024)

Description:

Provided strategic technical guidance for Alvéole's urban beekeeping platform. Focused on clean coding, systems design, database systems, and architecture reviews to support their mission of bringing urban beekeeping to cities worldwide.

OMsignal
Bio-sensing wearable technology (Acquired by Honeywell)

Role:

VP Engineering & 1st Employee (Feb 2012 - Mar 2014)

Description:

I was the #1 employee. Built the software infrastructure from ground up: design, coding, QA, support. Kickstarted the development stack that includes a wearable device, mobile app, API and web portal. During my time OMsignal raised $10M+ and secured a partnership with Ralph Lauren. Company was later acquired by Honeywell.

XpertSea
Aquaculture technology platform

Role:

CTO Advisor (Dec 2021 - Apr 2022)

Description:

Assured the transition of technical leadership for XpertSea's aquaculture technology platform. Worked with the existing team on React Native development, data synchronization, offline support, and development hiring. Key technologies: AWS, NodeJS, Python, TypeScript/JavaScript, React JS/Native.

IdeaPlaces
Location-based note organization app

Role:

Founder (2014 - 2016)

Description:

IdeaPlaces - Map Your Dropbox, Evernote and Photos. The first Evernote&Dropbox app designed for field professionals and travellers to organize their notes and pictures by location. Featured by Evernote in their ecosystem, achieved 25,000+ downloads with significant business traction.

Eastern Bank
Mobile banking application

Role:

Head Of Mobile (2015 - 2016)

Description:

Led the mobile development for Eastern Bank's mobile banking app from the start of implementation. Worked closely with API teams for integration and collaborated with the internal design team for smooth user experience. The mobile team passed a PWC full security audit during this time.

Work Experience

CTO/CPO
Mentorly
Jan 2025 - Present

I lead all things tech at Mentorly, a mentorship platform helping enterprises circulate knowledge internally. I manage the platform end to end—backend, infrastructure, AI systems, and internal tools—while staying hands-on in product, sales, and marketing. From sentiment analysis to LLM-powered mentor matching, I bring speed and stability to a growing system that's delivering real value. I don't just build the tech—I help drive the business.

Technical Advisor
Eli Health
Apr 2025 - Present

Leading the tech strategy and execution at Eli, a fast-paced health tech startup measuring hormonal biomarkers like cortisol and progesterone. I architect and maintain the mobile backend infrastructure, ensuring secure handling of personal health data. My role spans product development, hands-on coding, cross-functional leadership, and rapid iteration cycles. I bring deep technical and operational experience to early-stage ventures—especially where speed, trust, and precision matter.

Co-Founder
WeHappers
Jan 2024 - Present

Our mission: Reshaping wealth distribution to spark global happiness. Our action: Combining Investment ($) and Intelligence (i) on tech initiatives that enable wealth sharing while providing Happiness Experience. Our objective: Positively impact (>0) the level of happiness (Δh) of the people (p). Focus areas: Efficient engineering, Incubating positive initiatives, Platform building for NPOs' actions, Measuring Happiness.

CTO/CPO, Co-Founder
WISK.ai
2016 - Jan 2025

WISK is a next-level food & beverage intelligence platform built for the hospitality industry—serving restaurants, bars, hotels, and distributors across multiple countries. With an extraordinary team, I built WISK from the ground up into a robust, real-time system that powers inventory, ordering, costing, and analytics for thousands of venues. It's modular, secure, and built on scalable microservices architecture. We went from zero revenue to a multi-million dollar business, delivering real value to restaurateurs who needed better tools to run their operations.

Advisor
Alvéole
Jan 2023 - May 2024

Provided strategic technical guidance for Alvéole's urban beekeeping platform. Skills: Clean Coding, Systems Design, Database Systems, Problem Solving, Software Quality, Communication, Architecture Reviews, Design Patterns.

CTO Advisor
XpertSea
Dec 2021 - Apr 2022

Assured the transition of technical leadership. Interviewed and hired the full-time CTO, Mohamed Mehdi, who became my friend and advisor as well. In the leadership team I assured the technical voice. Worked with the existing team on key deliverable: react native development, data synchronization, offline support, development hiring. Key technologies: AWS, NodeJS, Python, Ansible, Terraform, TypeScript/JavaScript, React JS/Native, GitLab/GitHub.

Head Of Mobile
Eastern Bank
2015 - 2016

I led the mobile development for the Eastern Bank mobile app from the start of the implementation. I worked closely with the API teams to make the integration. Interacted with the awesome Eastern Bank internal design team to have a smooth user experience. During this time the mobile team also passed a PWC full audit for security.

Founder
IdeaPlaces
2014 - 2016

IdeaPlaces - Map Your Dropbox, Evernote and Photos. IdeaPlaces is the first Evernote&Dropbox app designed for in field professionals and travellers to organize their notes and pictures by location. IdeaPlaces is the evolution in note taking by helping users pin point their notes on a map for greater accuracy, improved collaboration and ultimately drive productivity. Professionals and travellers now have a simple and efficient tool to keep track of their notes and pictures by location on a map. IdeaPlaces provides independent workers to small-medium businesses with their location-based notes.

VP Engineering & 1st Employee
OMsignal
Feb 2012 - Mar 2014

I was the #1 employee. During my time OMsignal successfully raised 1.5 mil in seed round, 10mil in Series A and we successfully made a partnership with Ralph Lauren. I've built the software infrastructure from ground up: design, coding, QA, support. I've kickstarted the development stack that includes a wearable device, a mobile app, an API and a web portal. I've assured system quality and support for the first customer trials. Applied the Lean Startup learnings in a fast paced startup and driving company wide learning. OMsignal is a branded consumer platform at the intersection of the mobile, well-being and fashion markets.

Education

Bachelor in Computer Science Engineering
Technical University of Cluj-Napoca, Romania
1998 - 2003

High School in Computer Science
High School of Computer Science, Tiberiu Popoviciu
1994 - 1998

Technical Skills

Technologies and expertise I bring to every project

Architecture & Design

Microservices, scalable systems, API design, and cloud-native architectures

Leadership

CTO experience, team building, mentoring, and strategic technical decisions

Full-Stack Development

TypeScript, Node.js, React, Python, Java, and modern web technologies

Cloud & DevOps

AWS, GCP, Docker, Kubernetes, CI/CD, and infrastructure as code

Mobile Development

React Native, iOS, Android, and cross-platform mobile architectures

Data & AI

Machine learning, data pipelines, analytics, and AI-driven products

Entrepreneurship

Startup founding, product development, fundraising, and business strategy

Agile & Lean

Scrum, Kanban, MVP development, and rapid iteration methodologies

Security & Compliance

Security best practices, data privacy, and regulatory compliance

Let's build something amazing together

Whether you need a Fractional CTO, technical advisor, or co-founder for your next venture

Latest insights and thoughts

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Sharing my experience in technology, entrepreneurship, and building scalable products.