Remember the 2nd review I mentioned above? Now we're optimizing for that. This is the
last thing that stands between you and an interview. Recruiters will review your resume in
more detail at this stage, but 95% of the screening decision is made on the most
recent role.
That's logical: your most recent role should be the most representative of your current
seniority, abilities, and responsibilities. To get recruiters to say "yes", you need
to cover the entire role profile for a Front-End Developer, with one
dedicated bullet point for each of the areas we listed in the Profile Summary's Domain
Expertise bullet.
1
Modular UI Development
This is where most front-end resumes turn into framework lists. Hiring managers want
engineering judgment: reusable components, clear prop contracts, and slot patterns that
scaled across teams without becoming brittle. Name the design-system patterns you owned.
Techniques
Composable APIs
Prop contracts
Slot patterns
Container/presentational
Headless components
Tools
React, Vue, Svelte
Tailwind CSS, CSS Modules
Storybook, Bit
Metrics
Component reuse rate
Design-system adoption %
Story coverage %
2
State, Data Flow & Client Architecture
This is where most mid-level candidates fall over. Show that you tame complexity: cache
invalidation, suspense boundaries, and a reasoned split between client store and server-state
library. Name the libraries you chose and why.
Techniques
Client/server split
Cache invalidation
Suspense boundaries
Optimistic updates
Tools
Redux Toolkit, Zustand, Jotai
TanStack Query, SWR, RTK Query
Metrics
Cache hit rate
Form completion %
Re-render count
3
Performance & Optimization
Hiring managers want Core Web Vitals numbers, not vibes. Name the metric and the move you
made (LCP 4.2s to 1.6s, not "improved page speed"). The bullet works because the
recruiter can verify it.
Techniques
Code splitting
Lazy loading
Server components
Hydration discipline
Tools
Lighthouse, WebPageTest, RUM
Webpack, Vite, Turbopack
Next.js Image, Cloudinary
Metrics
LCP, INP, CLS
JS bundle size, hydration time
4
Accessibility, Usability & UX Quality
Two stakes here: legal risk and conversion lift. Show WCAG audits, semantic HTML, keyboard
flows, and screen-reader testing you actually ran. Not "familiar with WCAG" on a
skills row.
Techniques
Semantic HTML
ARIA patterns
Focus management
Screen-reader testing
Tools
Axe, WAVE, Lighthouse a11y
NVDA, VoiceOver, JAWS
Metrics
WCAG 2.2 AA pass
Axe issue count
A11y closure rate
5
Integration with APIs & Back-End Systems
Prove you keep the UI usable when the network fails. Auth flows, retry and backoff, schema
validation, and ownership of a real workflow end-to-end (payments, uploads, async jobs).
Techniques
REST integration
GraphQL queries
Auth flows
Schema validation
Error boundaries
Tools
Fetch, Axios, ky
Apollo, urql, Relay
Zod, Yup, Valibot
MSW, OpenAPI codegen
Metrics
API error rate
P95 latency
Retry success rate
6
Testing, Reliability & Observability
This is the single biggest separator between mid and senior. Layered tests in Vitest and
Playwright, plus RUM driving MTTR down on the bugs that actually reach users. Test coverage
on its own doesn't count.
Techniques
Unit tests
Component tests
E2E tests
Visual regression
Tools
Vitest, Jest, Testing Library
Playwright, Cypress
Sentry, Datadog RUM, LogRocket
Metrics
Coverage %
MTTR
Production error rate
Flaky test rate
7
Build Systems, Tooling & CI/CD
Show that you make the whole team faster. Type-checked CI, preview deploys, and bundle-size
budgets enforced in PR. The senior signal most mid-level candidates skip because it
doesn't feel "front-end" enough.
Techniques
Monorepo setup
CI pipelines
Preview deploys
Bundle budgets
Tools
Vite, Turbopack, esbuild
Turborepo, Nx, pnpm
GitHub Actions, Vercel, Netlify
Metrics
Build time
CI duration
Deploy frequency
8
Collaboration & Delivery Processes
Companies promote engineers with release discipline. PR-review standards you raised,
design-system contributions, and rollouts behind flags that protected customers when a
launch went sideways.
Techniques
PR reviews
RFC writing
Design-system contributions
Feature flag rollouts
Tools
GitHub PRs, GitLab MRs
Figma, Zeplin
LaunchDarkly, Statsig
Linear, Jira
Metrics
PR review SLA
DS contributions
Rollout success rate