CTO / Technical Co-Founder — AI B2B SaaS

We are looking for a hands-on CTO / Technical Co-Founder to help take an existing AI-powered B2B SaaS platform from technically fragile to dependable, commercially ready and scalable.This is not a conventional salaried role. It is a pre-funding opportunity for someone prepared to invest time and technical leadership in exchange for meaningful equity and founder-level influence. The opportunityOur SalesTech platform helps sales reps and managers turn meetings into intelligence, preparation, actions and deal insights.The product is already live with recording, transcription, summaries, meeting prep, Ask SAM, Tasks, analytics and calendar integrations.The immediate priority is not to build more for the sake of it. It is to stabilise, simplify and strengthen the platform so we can onboard pilot customers, convert paying customers and prepare for funding.What you will ownYou will:stabilise uploads, authentication and performancestrengthen multi-tenant security, identity and permissionsimprove observability, testing and release confidencesimplify unnecessary technical complexityestablish pragmatic engineering disciplineremain hands-on in the .NET codebasedevelop the existing engineering and QA resourceshelp shape product and technical priorities with the founderWhat we are looking forYou are a commercially pragmatic technical leader who has previously taken an imperfect SaaS platform from unstable to dependable.Strong experience in:SaaS stabilisation and architecture.NET / ASP.NET Coremulti-tenancy, authentication and RBACAPIs and third-party integrationsdatabases, migrations and data integrityobservability, testing and CI/CDdeveloping junior engineersmaking technical decisions based on customer value and runwayExperience with Azure B2C / Entra, Microsoft Graph, React, Python, HubSpot, Salesforce and applied AI/LLMs is valuable.We value someone comfortable saying: “We should fix this, not rewrite it.” “This technical debt can safely remain.” “We don't need that complexity yet.”Equity and commitmentThis is currently an equity-only role, with no cash salary until an agreed funding or commercial milestone.The preferred structure is:meaningful co-founder equity with agreed vestingclearly defined authority and commitmenttransition to full-time CTO after fundingmarket-aligned salary after the agreed triggerThis is probably not for you if you:need a salary from day onedefault to rewrites, microservices or Kubernetesprefer strategy and delegation over being hands-onhave only worked with large specialist engineering teamswant the CTO title more than the responsibilityIf you have previously inherited a fragile SaaS platform, made it dependable without rewriting everything, and want meaningful ownership in what you build next, we'd like to hear from you.When applying, briefly describe the platform you stabilised, what you prioritised first, what you chose not to rebuild, and the outcome.Australia-based candidates only.