Fractional CTO & Engineering Leadership

We help companies succeed with product- and technology-driven businesses.

Book an intro call

Services

cloudsential is a boutique consulting firm focused on technology leadership and senior engineering talent. We adapt the engagement model to your needs: fractional, project-based, or advisory retainers.

Fractional CTO / VP Engineering

Technology leadership without hiring full-time. We provide clarity, direction, and execution support across product, engineering, and organizational development. Ideal for scaling companies or teams in transition.

Board Advisory & Executive Technology Guidance

Independent senior perspective for boards and leaders. We act as trusted advisors to help executives navigate technology, organization, and strategy with clarity and confidence.

Technical Due Diligence & Capability Assessment

Objective evaluation of technology, teams, and scalability. Designed for investors, acquirers, and companies preparing for major milestones.

Senior Engineering & Architecture Execution

Hands-on experts who can execute immediately. When strategy requires action, we provide senior engineers, architects, and specialists who bring experience, stability, and technical leadership.

Management Team

We are technology executives with extensive experience leading and scaling engineering organizations in Japan and internationally. Alongside the partners, cloudsential includes a senior engineering team that works hands-on on complex engagements.

We work seamlessly across global and Japanese teams, supporting clients in English, Japanese, French, German, and Swiss-German.

Andreas Alexelis

Co-Representative Director

Andreas is a senior technology leader with over 20 years of experience in Japan and overseas, directing multilingual and cross-functional teams across fintech, HR-tech, and manufacturing industries. He has served in executive roles including CTO and Vice President of Engineering, leading complex engineering organizations and driving large-scale digital transformation initiatives.

His experience spans enterprise systems, trading platforms, cloud modernization, and global ERP rollouts, with hands-on technical depth in software engineering and applied machine learning—particularly in fintech use cases. He has a strong ability to align technology execution with business outcomes and has represented overseas shareholders on boards, ensuring governance, compliance, and strategic clarity in regulated environments.

Key expertise: Technology strategy, applied machine learning, fractional CTO leadership, digital transformation, engineering management, system integration, and cross-border technology operations.

Languages: English, Greek, Japanese

Stefan Meier

Co-Representative Director

Stefan is a Swiss engineering leader with over 20 years of experience in Switzerland and Japan. He held roles from Software Engineer to Vice President of Engineering at BizReach (now Visional), where he led a 300-engineer organization and contributed to the company’s growth from 250 to over 1,600 employees leading up to its $2.4B IPO in 2021.

He also played a key role in the early development and organizational foundations of the Stanby platform, which later became a joint venture with Yahoo Japan (now LY Corporation).

Key expertise: Fractional CTO leadership, engineering organization scaling, technology strategy, technical due diligence, and organizational design.

Languages: English, French, German, Swiss-German, Japanese