Jewel Jacob
Jewel Jacob

Jewel Jacob

Frontend • Middle • 31 years • Kochi, India • UTC+05:30 • In office, Fully remote • Work permits: India • Citizenship: India • English: B2 • Available now
Software Developer
6+ years exp
TypeScript
Node JS
JavaScript
State Management & Data Flow: 5/10
UI Component Architecture: 4/10
UX & Visual Polish: 4/10
Active 17 days ago
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Overview
Technical skills
Timeline
Roles

Overview

Frontend app engineer (middle) focused on building interactive Angular single-page features with reliable client-side state management. The strongest proven skill is designing paginated selection state and persistent selection semantics implemented in angular-grid-bulk-selection-jj387/src/app/services/data.service.ts together with coordinated components (DataGrid, BulkActions, Pagination). There is limited evidence of test coverage, CI/tooling, measured performance work, or advanced accessibility and therefore those areas are not proven in public code.
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Technical skills

Languages
3
TypeScript
Node JS
JavaScript
DevOps
5
AWS
Azure
API Gateway
Rest API
Git
Other
13
Angular
React.js
Sass
Amazon S3
RxJS
AWS Lambda
Angular Material
Bootstrap
.NET
GitHub
Highcharts
PrimeNG
Nginx

Timeline

Sr. Software Engineer • Senior
Cambium Networks • Full-Time
Jul 2022 to Sep 2026 4 Years 2 Months Kochi In office
Led a small frontend team to modernize a legacy network management system using Micro Frontend architecture and Angular, enabling faster modular deployments while delivering core product features. Designed and built customer-focused market applications in React and integrated them with backend services using Node.js and the platform’s REST APIs. Also supported local office networking setup and deployment for the engineering team.
Angular
React.js
Node JS
Rest API
Front-End Web Developer • Middle
Infosys • Full-Time
Dec 2017 to Jun 2022 4 Years 6 Months Thiruvananthapuram In office
Led an Agile team to build scalable, high-performance single-page applications using Angular. Implemented robust REST API integration layers with error handling, fallback behavior, and optimized data flow. Worked with international enterprise stakeholders in North America and Europe to refine specifications and deliver multilingual web solutions.
Angular
Rest API
Mahatma Gandhi College
Bachelor's Degree • Electronics and Communication
2013–2017 Thiruvananthapuram, Kerala
Middle Frontend Developer Confidence: Medium App Engineer
Frontend app engineer (middle) focused on building interactive Angular single-page features with reliable client-side state management. The strongest proven skill is designing paginated selection state and persistent selection semantics implemented in angular-grid-bulk-selection-jj387/src/app/services/data.service.ts together with coordinated components (DataGrid, BulkActions, Pagination). There is limited evidence of test coverage, CI/tooling, measured performance work, or advanced accessibility and therefore those areas are not proven in public code.
UI Component Architecture
4/10
How interface parts are built
Component composition and separation are present with standalone components and a dedicated service, but much is scaffolded and there is no custom design system or advanced composition patterns.
Evidence
angular-grid-bulk-selection-jj387/src/app/components/data-grid/data-grid.component.ts: DataGridComponent standalone composition
angular-grid-bulk-selection-jj387/src/app/components/bulk-actions/bulk-actions.component.ts: BulkActionsComponent for selection UI
angular-grid-bulk-selection-jj387/src/app/app.component.ts: app composition of DataGrid, BulkActions and Pagination
Responsive & Cross-browser
3/10
Works on all screens and browsers
Basic responsive layout and media queries are implemented but there is no explicit RTL/i18n or advanced feature-detection strategy.
Evidence
motorpi/src/index.html: responsive CSS media queries and layout adjustments
angular-grid-bulk-selection-jj387/src/app/components/data-grid/data-grid.component.ts: .data-grid-container overflow-x:auto for narrow screens
Performance Optimization
1/10
Speed of the interface
Little to no measured performance work; standard reactive primitives are used but no virtualization, bundle analysis, or advanced optimization patterns.
Evidence
angular-grid-bulk-selection-jj387/src/app/services/data.service.ts: BehaviorSubject-based state but no performance measurements
angular-grid-bulk-selection-jj387/src/app/components/data-grid/data-grid.component.ts: manual subscriptions alongside async pipe (potential inefficiency)
Accessibility & Semantics
3/10
Usable for everyone
Some accessible patterns are used (labels, use of Angular Material components) but there is no explicit ARIA on custom widgets or focus management for complex controls.
Evidence
angular-grid-bulk-selection-jj387/src/app/components/data-grid/data-grid.component.ts: inputs with id/label pairing for checkboxes
motorpi/src/app/device-card/device-card.component.html: use of Angular Material controls (mat-slide-toggle) which provide baseline accessibility
State Management & Data Flow
5/10
Managing data in the app
Clear, non-trivial client-side state discipline for paginated selection is implemented (include/exclude semantics, select-all-pages, observables), showing solid app-level state design.
Evidence
angular-grid-bulk-selection-jj387/src/app/services/data.service.ts: selectionState with include/exclude list, allPagesSelected toggle and BehaviorSubject streams
angular-grid-bulk-selection-jj387/src/app/components/pagination/pagination.component.ts: subscribes to currentPage$, totalPages$, totalItems$ for coordinated paging behavior
UX & Visual Polish
4/10
Look and feel quality
Thoughtful UX touches exist such as explicit loading states, disable states and clear selection messaging, but there are no advanced perceived-performance patterns (skeletons, optimistic rollback, undo).
Evidence
motorpi/src/app/device-card/device-card.component.html: Loading.. template and controls disabled while state loads
angular-grid-bulk-selection-jj387/src/app/components/bulk-actions/bulk-actions.component.ts: selection messaging and conditional action visibility
Verified artifacts
akhiljohnson2000/jamlights-webapp• PR crud-mix/react• PR
Expertise
Angular• Middle
Technologies
JavaScript
TypeScript• since 2020 • Middle
Node JS• since 2022 • Middle
RxJS
Azure• since 2019
Angular• since 2017
Bootstrap
Git• since 2019
AWS• since 2017
Nginx
React.js• since 2022
PrimeNG
Sass
Highcharts
AWS Lambda
Angular Material
GitHub
Amazon S3
API Gateway• since 2019
Recommendations
  • Build data-driven admin interfaces or dashboards where paginated selection, bulk actions and client-side state coordination are required.
  • Develop reusable Angular component libraries and composition patterns (design tokens, documented API surfaces) to productize the existing components.
  • Implement feature work for IoT or device control UIs that need simple device state flows and robust error handling similar to the device-card patterns.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories:
motorpi angular-grid-bulk-selection-jj387 mac2ip