Javascript Developer jobs in United States
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Marlabs · 15 hours ago

Javascript Developer

Marlabs is seeking a highly skilled Senior Frontend Developer to join their team on a contractor basis. This role will focus primarily on web development using Angular and mobile development using Flutter, working across multiple enterprise frameworks and platforms.

Information Technology & Services
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H1B Sponsor Likelynote

Responsibilities

Design, develop, and maintain complex web applications using Angular framework
Work extensively with enterprise-grade solutions
Implement responsive, accessible, and performant user interfaces
Develop reusable components and front-end libraries for future use
Collaborate with backend teams to integrate RESTful APIs and services
Ensure cross-browser compatibility and optimize applications for maximum speed
Participate in code reviews and maintain high code quality standards
Work with state management solutions (NgRx, RxJS)
Implement modern UI/UX designs and ensure pixel-perfect implementation
Build and maintain cross-platform mobile applications using Flutter/Dart
Develop mobile-first features that integrate with existing web platforms
Ensure consistent user experience across iOS and Android platforms
Optimize mobile app performance and handle device-specific requirements
Implement native features and third-party integrations as needed
Work with Flutter state management solutions (Provider, Riverpod, Bloc)

Qualification

AngularFlutterTypeScriptRESTful API integrationHTML5CSS3JavaScript (ES6+)GitAgile/ScrumProblem-solvingCommunication skillsAttention to detail

Required

4+ years of professional frontend development experience
Expert-level proficiency in Angular - TypeScript, RxJS, Angular Material, NgRx
Strong Flutter/Dart experience (2+ years minimum) - cross-platform mobile development
Deep understanding of HTML5, CSS3, SCSS/SASS, and modern JavaScript (ES6+)
Experience with responsive design and mobile-first development
Proficiency with RESTful API integration and asynchronous programming
Strong knowledge of state management patterns and architectures
Experience with Git version control and collaborative development workflows
Understanding of web performance optimization and best practices
Familiarity with Agile/Scrum methodologies

Preferred

Experience with enterprise framework development
Knowledge of Single Page Application architecture patterns
Experience with component libraries and design systems
Familiarity with CI/CD pipelines (Jenkins, GitHub Actions, Harness)
Experience with automated testing (Jasmine, Karma, Jest, Flutter testing framework)
Knowledge of accessibility standards (WCAG 2.1)
Experience with micro-frontends architecture
Understanding of backend technologies and API design
Exposure to AI/ML integration in frontend applications
Experience with cloud platforms (AWS, Azure, GCP)

Company

Marlabs designs and develops digital solutions with data at the center.

H1B Sponsorship

Marlabs has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (113)
2024 (176)
2023 (148)
2022 (309)
2021 (334)
2020 (253)

Funding

Current Stage
Late Stage

Leadership Team

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Todd Keller
Chief Operating Officer
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Gaurav Gupta
Head- Channels & Strategic Partnerships
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Company data provided by crunchbase