How Sephi Scaled His Founder Voice Into a Growth Engine on LinkedIn

Serial entrepreneur Sephi Shapira wanted to help founders raise capital with sharper stories and smarter strategies. With MadScript, he turned LinkedIn into a growth engine to scale his audience by nearly 20% in six weeks while protecting his time.

Sephi's perspective

"MadScript gave me a system that works. I can share my perspective without adding to my workload; the content actually cuts through. In just a few weeks, I saw more reach, engagement, and conversations with the founders and investors I want to connect with."

Sephi Shapira

The challenge

Sephi is a 4x tech founder with a mission: make other founders more fundable. By mid-2025, he already had a solid LinkedIn base of ~9,300 followers. However, to reach the right founders and investors at scale, he needed two things: consistency and leverage.

The challenge? His time was maxed out running new ventures. He needed a system to capture his voice, publish frequently, and grow his influence without turning content into another full-time job.

The solution

MadScript deployed its founder-first content framework:

Voice-note capture & guided interviews – fast, authentic content sourcing
Consistent 5x/week cadence on LinkedIn
Experimentation with formats like carousels, audiograms, and short videos
Weekly performance loops to double down on what worked

By anchoring everything in Sephi’s authentic perspective, MadScript ensured that his content cut through the noise while scaling efficiently.

Execution

Patterns emerged quickly in the first weeks. Sephi’s audience resonated with his voice and perspectives: contrarian insights, founder psychology, and list-based clarity consistently outperformed.

Momentum accelerated in September. Multiple posts topped all-time high engagements, sparking conversations across founder and investor circles. Within six weeks, Sephi’s audience grew nearly 20%.

The results

With MadScript’s system in place, Sephi transformed LinkedIn into a growth engine:

+18.6% follower growth (9.7k → 11.5k) in six weeks
832k total post impressions over two months
25 avg. reactions per post
Repeatable content playbook: emotion-forward hooks + short contrarian insights consistently led performance

Beyond numbers, Sephi’s content began sparking meaningful inbound from early-stage founders seeking advice to VCs engaging directly with his ideas.

What's next

Having demonstrated early traction on LinkedIn, Sephi is looking to double down on his content, optimizing and scaling his messages while growing his newsletter subscribers. The foundation is set: a scalable content engine, a proven playbook, and a growing audience of founders and investors who see him as a must-follow voice.