Fractional & Interim CTO for Startups and Scaleups

William Marchand is the President of Webisoft and co-founder of CTO on Demand, with more than 13 years in senior technology leadership. Before founding Webisoft in 2016, he served as CTO at Nixa and Groupe G-Nix in Montreal, where he led engineering teams, set technology strategy for clients, and built the delivery practices he still uses today.

At CTO on Demand, William personally leads fractional and interim CTO engagements for startups and scaleups: stabilizing engineering after a CTO departure, running fixed-scope engineering audits, and preparing codebases for investor and acquirer technical due diligence. Every engagement follows the firm's three-phase Creating Clarity methodology, which separates honest diagnosis from recommendations and ends with a board-ready narrative and a 30/60/90-day plan. Clients see a 35-50% average improvement in delivery metrics.

His hands-on technical range spans SaaS architecture, cloud infrastructure (AWS Certified, with Webisoft an AWS Select Tier Partner), and blockchain systems across Ethereum, Solana, and Cosmos. He works best with seed-to-growth-stage companies where technical decisions carry real money and board scrutiny, and where someone senior needs to own them this week.