ABOUT TOPSKILLS
Comprehensive Guides and Coaching for Senior Engineers
TopSkills helps senior software engineers and tech leads navigate the AI transition with comprehensive guides and 1:1 coaching—so you can build the skills, judgment, and confidence needed for what comes next.
What To Expect
TopSkills is built for senior software engineers navigating the AI transition who want a clear view of how AI is changing their role, which skills matter now and how to position themselves strategically.
I provide in-depth insights and 1:1 coaching focusing on:

How AI is redefining engineering roles

Which skills matter now

How to position yourself strategically
The insights are based on real delivery work—including the trade-offs, guardrails and mistakes that come with adopting AI inside serious production environments.
I offer honest analysis from leading teams through this transition at Visa.
Why I Created TopSkills
I’m seeing genuine fear and panic among senior software engineers about what’s coming with AI. Not the excitement energy of “let’s try this new tool” but real anxiety about their career survival and existence.
Engineers who’ve spent 10-15 years building deep expertise and skill are watching as AI commoditises their craft wondering:
“What happens to me and my job? What do I focus on? How do I stay relevant?”
Most of the resources out there aren’t helping. Plenty of hot takes from influencers who’ve never led production teams or generic career advice that ignores the AI-specific reality we’re facing.
I created TopSkills to give senior engineers a place to review and determine the skills they actually need to excel through this transition—not just survive it.

To move from panic to strategy.

From reactive to intentional.
I’m navigating this myself—right now, at scale, with real teams—and sharing what’s working as we learn.
Not because I’ve figured it all out, but because I’m a couple years ahead and can help others move from fear to confidence.
That’s what fuels my tank.
My Background
I’m Bramwell Simiyu, a Lead Software Engineer at Visa, where I’m leading a strategic cross-border payments platform redesign involving 6+ squads (around 42 engineers).
Current Work: AI Integration in Production
I’m helping teams embed AI tools—Claude, Cline workflows, and custom agents—across the full development lifecycle, from requirements through CI/CD. We’re building workflows that actually scale in a regulated environment with guardrails and code quality standards.
We’re shipping production code with AI assistance, tracking what works, fixing what breaks and building our processes so AI amplifies good engineering rather than just speed up bad practices.
Previous Foundation: 14 Years at JPMorgan
Before Visa, I spent 14 years at JPMorgan building financial systems where “good enough” wasn’t an option. Some key achievements include:
- Built FX trading and pricing platforms from scratch
- Led the migration of 27 OTC derivative products to a strategic Python-based platform
- Led teams across London, India, and Singapore
- Mentored 100+ engineers through major technical transitions
I know the difference between what works in production for years and what just sounds impressive in a blog post.
Get in Touch

Bramwell Simiyu, Lead Software Engineer at Visa, London

