Strategic Technology Leadership for High-Growth Startups
Drive rapid growth, scale your engineering team, and achieve your business goals faster with my proven technology leadership.
Agentic AI Transformation Landscape
Introduce a Fractional AI Team that augments your squads with specialised agents orchestrated around a spec-driven, human-led delivery model.
Always-on AI Coworkers
Dedicated AI teammates sit alongside every squad, handling the repeatable workload and amplifying your human talent so a lean crew ships like a team twice its size.
Human–AI Collaborative SDLC
From planning to delivery, specialised agents stay synced with the CTO’s direction — generating specs, validating assumptions, and giving teams the context they need to ship with confidence.
Agentic Delivery, Measurable Velocity
The Agentic AI SDLC keeps humans focused on creativity and judgment while agents manage the heavy lifting, accelerating throughput without sacrificing quality.
Human CTO & Leadership Team
Orchestrate a Fractional AI Team that extends product, engineering, and delivery with disciplined, spec-driven collaboration.
- Phase 01
Strategic Intake & Backlog Intelligence
AI discovery analysts map product goals, surface risks, and translate human direction into prioritised, data-backed opportunities.
- Phase 02
Solution Architecture & Planning
Design agents co-create specs, architecture options, and effort models that stay aligned with engineering standards and compliance needs.
- Phase 03
Build, Test & Review
Delivery agents pair with engineers to generate code, tests, and documentation while human leads review, refine, and approve.
- Phase 04
Release & Operations
Launch agents automate deployment runbooks, observability checks, and rollout communications to safeguard quality.
- Phase 05
Learning Loop & Governance
Performance monitors capture outcomes, feed retrospectives, and propose optimisations that keep the human–AI SDLC evolving.
About Me
With 20 years of experience in the tech industry, I've helped start-ups and enterprises build scalable products and led high-performing engineering teams to deliver innovative solutions and significant business outcomes across Sydney, Australia and Paris, France. I'm passionate about helping founders and executives leverage technology as a strategic advantage.
Strategic Leadership
Proven track record in developing and executing technology strategies that align with business objectives. Successfully led multiple venture-backed startups through critical growth phases, from seed to Series B and beyond, while maintaining clear vision and execution focus.
Team Leadership
Led multiple high-growth startups as CTO and VP Engineering, building highly efficient engineering organizations that deliver exceptional results. Experienced in scaling engineering teams from 5 to 35+ members while maintaining high performance and culture.
Technical Innovation
Experienced in architecting scalable and resilient software solutions across fintech, legaltech, and SaaS domains. Skilled in cloud infrastructure, data security, analytics integration, and modern development practices that drive business growth.
Cross-functional Excellence
Mastered the art of aligning technology with business goals through effective cross-functional collaboration. Successfully bridged gaps between engineering, product, and business teams to deliver solutions that exceed expectations.
Process Optimization
Implemented robust product development processes that ensure quality and efficiency. Established best practices in agile methodologies, code quality, and deployment strategies that enable rapid, sustainable growth.
Talent Development
Passionate about building high-performing engineering cultures through effective coaching and mentoring. Proven track record in developing technical leaders and implementing performance management systems that drive talent acquisition and career growth.
Services
Flexible technical leadership services tailored to your startup's stage and needs.
Agentic AI Transformation Landscape
Layer an agentic AI operating model onto your teams at any stage — from validating your MVP to orchestrating post-Series B scale.
Let's discuss your needs →
Case Studies
Recent engagements with high-growth startups.
Seed to Series B Startup
Chief Technology Officer • 3 years
Estate Planning and Administration Platform
Safewill provides estate planning products and services that enable Australians to ensure their wealth is transferred as intended while their legacy, family and loved ones are protected.
Publicly Listed Company
Head of Engineering • 1+ years
Compliant, Secure, Privacy-Preserving Smart Data Collaboration Solutions
IXUP creates privacy-preserving technology solutions for all levels of security, governance and data sensitivity, to respond to the rapidly increasing demand for safe and effective data collaboration.
Series A to Series B and M&A Startup
Deputy Chief Technology Officer • 4.5+ years
Data Sharing & Governance Platform
Data Republic is the trusted platform for data-driven innovation to unlock the potential of the world's data with trust and transparency. Connect data to the world's best people, apps and algorithms in a fully governed cloud computing environment. Match sensitive data with partner data in a privacy-preserving way to facilitate smarter insights.
Pre-Seed to Seed Startup
Advisory Board Member • 3+ years
Experiences Discovery & Booking Platform
Leezair defines the future of tourism by bringing new possibilities to providers, travellers and individuals, reducing barriers to entry and increasing choice of activities.
Seed to M&A Startup
Technical Lead • 2.5+ years
Simple and Secure Online Cash Investments Platform
Cashwerkz is a term deposit and cash management marketplace to invest and manage cash for consumers, professionals and financial institutions.
Pre-VC to Pre-IPO Startup
Senior Software Engineer • 3 years
Logistics and supply chain software platform
WiseTech Global is combining centuries of logistics expertise and intelligent software to build a modeless and borderless global platform.
Let's discuss the results and how I can help you →
Testimonials
Feedback from founders, executives and investors I've worked with.
"Julien operates with a rare balance of strategic thinking and executional focus. He brings calm, clarity, and high standards to complex environments, consistently demonstrating sound judgment. He possesses an incredible amount of resilience, navigating the immense challenges of joining a business at its developing stage and transforming it into a scaled venture. As a member of the executive team, he’s contributed not just as an outstanding technologist but as a trusted business leader, always willing to take on more under his remit."
"I have had the privilege of working with Julien twice now. He was promoted to Deputy CTO at Data Republic during the 3 years I was CEO there and he joined Safewill as the initial CTO for the company after I led their Seed round. Julien is a highly conscientious builder of teams and technology. He has worked on some complex and mission critical capabilities, especially where data and security are paramount. I have valued his strategic approach of building a technology roadmap that supports business and strategic objectives while building a quality and cadence in teams that endures. I wouldn’t hesitate to work with Julien again."
