Sassi M

I build and improve React product frontends.

Senior frontend developer for React and TypeScript products with real users, real business rules, and UI work that has to hold up after launch.

I help teams ship features, clean up brittle flows, and turn repeated UI work into systems the next developer can keep building on.

Best fit

Product teams, founders, and agencies that need senior frontend execution without slowing the whole roadmap down.

React / TypeScriptProduct UI systemsWorkflow-heavy appsFrontend ownership
See services

Selected experience

IntuitTurboTax
St. Michael's HospitalHealthcare
CandidateXHR Tech
ReitiumFintech
City of RichmondGovernment

Where I’m useful

Best when the product already has users, the UI has real constraints, and the team needs someone who can both ship and improve the system.

The app is outgrowing the frontend

New features still ship, but old decisions now make every change more expensive.

  • State flow
  • Component boundaries
  • Performance
  • Refactors

The same patterns keep getting rebuilt

Tables, forms, filters, modals, and settings pages should not be one-off work every time.

  • Forms
  • Tables
  • Filters
  • Modals
  • Shared UI

The work is product-heavy, not just page-building

Dashboards, portals, auth, billing, and internal tools need someone who can follow the full user flow.

  • Dashboards
  • Admin tools
  • Portals
  • Billing
  • Auth

The UI depends on backend details

I can work through API shape, loading states, data modeling, and integration edge cases.

  • APIs
  • PostgreSQL
  • Prisma
  • Stripe
  • CI/CD

Shipped work

CandidateX

2022 - 2023

Hiring platform with 10K+ users and too many repeated UI decisions

What I worked on

Reusable components, cleaner screen structure, and repeated product patterns

What changed

Less rebuild work across candidate and employer flows

Case study
CandidateX

Reitium Crowdfunding

2021 - 2022

Real estate crowdfunding product moving from concept to a public investor experience

What I worked on

Property pages, account areas, investment forms, and dashboard views

What changed

First public frontend shipped in 3 months

Case studyVisit site
Reitium Crowdfunding

Tractor at Home

2021 - 2022

Meal-delivery checkout that needed to feel easier before customers dropped off

What I worked on

Meal selection, ordering flow, checkout UI, and page-speed improvements

What changed

Ordering path became clearer and faster to complete

Case studyVisit site
Tractor at Home

Where I’ve done it

Sept 2024 – Present

Senior Frontend Developer (Full-Stack Scope)

LockeBio

  • Led frontend architecture for a regulated healthcare EMR platform using React and TypeScript, including application structure, theming, and state management
  • Built and maintained shared UI components for core product workflows

June 2020 – Sept 2024

Senior Front-End Developer (Contract)

MSDC LTD.

  • Delivered frontend-led SaaS products, public-sector platforms, and internal tooling for startups and enterprise teams

MSDC Internal

Implemented end-to-end authentication including SSO and OAuth, supporting multiple client configurations

MyRichmond (Radical I/O Technology)

Delivered a city-wide citizen portal aggregating taxes, utilities, licensing, and waste services

Jul 2019 – Jul 2020

Senior Web Developer

St. Michael's Hospital

  • Maintained and enhanced WordPress and Yii2 websites in a healthcare environment with privacy and compliance constraints
View full experience

If the frontend needs clearer ownership, I can help.

I’m a fit when the work has real product constraints, existing code, and users waiting on the next improvement.

Based in Canada

Usually replies within one business day.

Resume