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EfeSener

Founding Engineer for Startups

I love working with creative minds

I've brought dozens of startups' ideas to life. Alongside that, I'm building and executing my own ventures and I share how I do it through mentorship.

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9+Years of experience

100+Apps shipped

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Current Projects

Transmissions currently in active orbit.

Kopilot Rehberlik

Head of Tech

Türkiye's hyper-personalised education platform — selected as Best of the Year by Prime Medya. Online guidance for students preparing for university entrance exams.

EdTechHyper-personalPrime Medya award

Buttercup Technologies

Founder

Technology partner for fast-moving startups. Hybrid no-code + AI stack to ship apps that are both very fast to build and highly controllable in production.

No-codeAIHybrid stackStartups

Bubble.io Ambassador

Ambassador

Official Bubble Ambassador since 2024 — direct line to the Bubble product team, early access to features, feedback that shapes the product. Building no-code communities along the way.

Bubble.ioAmbassadorCommunity

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Testimonials

Words from founders and teams I've built with.

“Thank you, Efe. After reviewing the report and videos, I see what a great decision it was to work with you. It highlights critical issues and has been very instructive. I'll apply the changes soon.”

Dilan K.

Co-Founder @ NovaForge

“Working with Efe felt like having an experienced product leader inside our team.”

He didn't just build what we asked for, he helped us define what we should build. His Bubble background shows in every architectural decision, and his business mindset made the product stronger from day one.

Aydın U.

Co-Founder @ Kopilot Rehberlik

“What stood out most was how transparent the entire process was.”

We always knew what was happening, what was coming next, and where we stood in terms of scope and cost. Buttercup never disappeared behind tools or juniors, we worked directly with the senior team from day one.

Fares P.

Founder @ Poptag

“Efe is one of the strongest Bubble developers I've ever worked with.”

You can immediately feel the difference when your project is led by someone recognized by Bubble globally. The architecture, performance decisions, and scalability planning were on another level.