Interim / Fractional CTO
Step in as steady hands for executive teams needing experienced product and engineering leadership, covering hiring, vendor management, and board reporting.
Senior software consultancy
Interim CTO and technical leadership for ambitious teams.
Red Marina is Darren's independent practice, guiding venture-backed companies through platform rebuilds, large-scale delivery programmes, and critical architectural decisions with hands-on leadership.
About Darren
Principal consultant and fractional CTO.
Two decades leading engineering at VC-backed ventures, scale-ups, and complex enterprises. I specialise in rebuilding core platforms, governing large multi-vendor programmes, and mentoring emerging tech leaders while keeping delivery velocity high.
Engagement models
Where Red Marina creates leverage
Programme Rescue & Delivery
Assess troubled initiatives, reset scope and governance, then lead multi-disciplinary teams to ship, keeping stakeholders aligned and budgets under control.
Architecture & Platform Modernisation
Replatform legacy stacks, design cloud-native target states, and build pragmatic roadmaps that balance debt reduction with feature delivery.
Leadership Coaching
Mentor emerging heads of engineering or product, instil healthy delivery rituals, and create succession plans that outlast interim engagements.