Jane Doe
Senior Frontend Engineer · React/TypeScript
Freelancer/Consultant rate
E&O (Errors & Omissions)
Insurer
Hiscox
Policy #
EO-77421-B
Limit / claim
$1,000,000
Aggregate
$2,000,000
Deductible
$1,000
Effective
Mar 12, 2026
Expires
Mar 12, 2027
Cyber Liability
Insurer
Coalition
Policy #
CY-30918-A
Limit / claim
$1,000,000
Aggregate
$1,000,000
Deductible
$2,500
Effective
Feb 20, 2026
Expires
Feb 20, 2027
- Includes: data breach response, ransomware, business interruption
- Third-party privacy & regulatory defense included
equilibrium.co/freelancers/jane-doeVideo introduction
About
Senior frontend engineer with 8+ years shipping product-grade React applications for SaaS, fintech, and healthcare teams. I care about performance, accessibility, and design systems that survive re-orgs. Comfortable owning a slice end-to-end — from API contracts to pixel polish.
Work philosophy
Ship small, ship often. Optimize for the team behind you and the users in front of you. I default to written communication, async updates, and honest estimates.
Skills & tech stack
Frontend
Backend
Tooling
Portfolio
Northwind Analytics Dashboard
Cut load time by 62% and improved DAU by 24%
“Jane rebuilt our entire analytics stack — best hire we've made.”
Helio Fintech Onboarding
Reduced KYC drop-off from 41% to 12%
“Shipped a production onboarding flow in 3 weeks. Exceptional.”
Cascade SaaS Design System
Shipped 40+ reusable components across 3 products
“The design system Jane built accelerated every team.”
Meridian Health Portal
HIPAA-compliant portal serving 80k patients
“Deep technical expertise, and a great communicator.”
GitHub activity
@janedoe47
Repos
1.2k
Followers
1,284
Contributions (yr)
react-forms-lite
Tiny form primitives for React 19.
tsx-router-kit
Type-safe route helpers for TanStack.
vite-plugin-metrics
Ship Web Vitals from Vite builds.
Work history
- Verified Placement
Senior Frontend Engineer (Contract)
Northwind Analytics · Jan 2025 – Present · 6 mo
“Delivered a full dashboard rebuild ahead of schedule. Would hire again in a heartbeat.”
- Verified Placement
Frontend Engineer (Contract)
Helio Financial · May 2024 – Dec 2024 · 8 mo
“Rare mix of product intuition and engineering rigor.”
- Verified Placement
Design Systems Lead (Contract)
Cascade SaaS · Aug 2023 – Apr 2024 · 9 mo
“Set the technical bar for the entire org.”
Client reviews
Based on 23 verified reviews
5.0
Communication
4.9
Quality of Work
4.8
Deadlines
5.0
Professionalism
Marcus Chen
Northwind Analytics
Jane is the kind of engineer you build a team around. She onboarded fast, shipped early, and elevated our whole frontend org.
6-month contract · $120/hr
Priya Rao
Helio Financial
Excellent communicator, deep React expertise, and a bias for shipping. Would gladly work together again.
8-month contract · $115/hr
Daniel Okafor
Cascade SaaS
Set up our design system and documentation. Delivered exactly what we scoped, on schedule.
9-month contract · $110/hr
All reviews are from verified Equilibrium placements only.
Certifications & education
AWS Certified Developer — Associate
Amazon Web Services · 2024
Certified Kubernetes Application Developer
CNCF · 2023
B.S. Computer Science
UC Berkeley · 2016 – 2020
Thought leadership
The pragmatic case for TypeScript strict mode
personal blog · 12 min
Design systems that survive re-orgs
React Summit 2024