About Sim.

The Coach behind Longevity by Design.

I'm an Executive Assistant with over 20 years of experience working for national and global companies across the Health and Utilities industries. I'm good at my job — organised, driven, high-performing. And like a lot of ambitious professionals, I know what it’s like to pour everything into your career while your health quietly slips down the priority list.

But my real turning point wasn't burnout. It was a pattern I couldn't ignore: injuries, surgeries, and a growing list of things I told myself I couldn't do anymore.

At some point I decided I'd had enough of that story. So I set myself a goal so big it scared me — I was going to compete in bodybuilding.

There's nowhere to hide on stage. You can't half-commit, you can't wing it, and you can't talk yourself out of showing up. For the first time, I had to say "I can" to everything, and just follow the process. I put my trust in my coaches, I did the work, and I got there.

What that experience gave me went far beyond a trophy. It showed me that I was capable of far more than I'd been telling myself. And it taught me something I've never forgotten: the right system, followed consistently, produces results. Every time.

After competing, I made a deliberate choice to step back from the stage and build a different version of health — one that was sustainable, year-round, and built for real life. I rebuilt my nutrition, my training, and my daily habits from the ground up. And something unexpected started happening: people kept asking me what I was doing. How I maintained it. How I always looked and felt good — not just for a competition, but all the time.

That question, asked by so many people I cared about, is what started Longevity by Design.

Because the answer isn't a secret. It's not a supplement, a meal plan you can download, or an influencer's morning routine. It's a simple, evidence-based system — one that you understand, own, and can run independently, without needing anyone to tell you what to do next.

Sim, founder of Longevity by Design, competing as a natural pro athlete at ICN — health performance coach Brisbane

“Using the right systems and not relying on anyone else to tell me what I should be doing is incredibly freeing. That's what I want for you." — Sim

What I bring

  • Certificate III & IV in Fitness (Master Trainer)

  • Former Natural Pro Athlete - ICN (I Compete Natural)

  • Zoom-based coaching, available Australia-wide

  • Evidence-informed approach within Australian fitness scope of practice

Ready to take the first step?