Senior FrontendEngineer buildingproduction-grade web.
Seven years shipping financial platforms, AI tooling, and editorial websites for teams across Africa and the US.
About — /01
A senior frontend engineer who cares about the kerning.
I'm Olusegun, a senior frontend engineer with seven years shipping financial platforms, insurance platforms, and AI tooling. On the side I design and build editorial portfolio sites for founders, designers, and consultants who want a presence that holds up to the work it represents.
- 7+
- Years engineering
- 20+
- Products shipped
- 6
- Companies
- 95+
- Lighthouse default
Selected work — /02
A few things I am proud of.
- /01
Things
Designed and built an editorial e-commerce marketplace from scratch — storefront, product detail pages, cart, and merchant onboarding — for a client positioning their brand as the antidote to generic online stores.
- /02
TellerOne
Replaced a legacy jQuery banking interface with a modern React frontend — faster, easier to maintain, and built around the workflows tellers actually use every day.
- /03
Unyte Africa
Scaled the frontend of a digital insurance platform serving thousands of policy holders, and rebuilt the operator dashboards that policy teams use every day.
Services — /03
Two tracks. One standard of craft.
I split my year between senior frontend engagements with product teams, and bespoke editorial portfolio sites for founders, designers, and consultants. Two tracks, each with a primary engagement and a companion offering — held to the same standard.
- /01Engineering
Frontend engineering, on contract
Embedded with your team as a senior or fractional lead. I own architecture, ship features, and raise the bar on the existing codebase.
- React + TypeScript architecture
- Design systems & component libraries
- Performance & accessibility audits
- Migrations (Pages → App Router, JS → TS)
- Code review & engineering standards
Companion offering
Frontend systems consulting
Short-form audits and roadmaps when you need a senior eye but not a full hire. I walk in, listen, and leave you with a plan and a prototype.
- /02Websites
Portfolio websites for professionals
Bespoke editorial portfolio sites for founders, consultants, designers, and creative professionals — built to win clients, not just to look good.
- Custom editorial design grounded in your brand
- Conversion-focused structure and clear positioning
- Page speed that helps you rank, not just look fast
- Content you can update yourself, without a developer
- Hands-on launch, hosting setup, and ongoing care
Companion offering
Ongoing care & support
For the projects I ship: a flat monthly retainer for refinements, content updates, and the occasional new section.
Scope & investment — /04
Every engagement is priced to fit.
I don't publish prices because no two projects are the same. Answer four short questions and I'll recommend the right engagement, what's included, and a fair price for your scope.
Free discovery call
A 45-minute conversation to understand the work before any quote.
Fixed quote in 48 hours
Written scope, clear deliverables, no surprises after.
Milestone-based payment
You only pay as we ship. Nothing upfront before we've talked.
Process — /05
How we ship together.
A four-step process that has shipped financial platform MVPs, insurance dashboards, and editorial portfolios — same rhythm, same standard.
- 01
Discovery
A 45-minute call to understand the audience, the brand, and the outcome you need. You leave with a written summary and a fixed scope within 48 hours.
- 02
Design
I draft the editorial direction in Figma — typography, palette, key sections — then refine in two structured rounds before any code is written.
- 03
Build
Engineering with the stack that fits your business — strict typing, semantic structure, and a Lighthouse target of 95+ on every page. You get a live preview URL on day one to share with collaborators.
- 04
Launch & care
A polished launch on the hosting platform that suits your business, with custom domain, SEO essentials, social previews, and analytics already wired. Two weeks of refinements included; an optional retainer for everything after.
Testimonials — /06
People I've shipped with.
Olusegun gave us a platform we can finally compete on. Branches move faster, customer wait times are down, and we can promise our partners a delivery timeline and actually hit it. The kind of hire that pays for itself in the first quarter.
Founder
Founder, TellerOne
He cut our production defects by 60% with a thoughtful testing strategy and built dashboards our policy operators actually wanted to use. Rare combination of taste and rigor.
Product lead
Head of Product, Unyte Africa
The aesthetic is exactly what I wanted but could never articulate — restrained, considered, and beautiful in a way that feels timeless. Every detail, from the typography to the spacing, reads like a printed magazine. Clients now mention the website in our first calls.
Benjamin A.
Independent designer, Studio Benjamin
FAQ — /07
Everything you need to know.
Let's talk
Have a project in mind?
Hiring a senior frontend lead, or commissioning a portfolio site that finally reads the way you write? Four questions, one tailored quote, no generic price list.
Direct email: olayinkasegunsolo@gmail.com
