Upwork

Senior/Lead Javascript Developer

Upwork

contract

Posted on:

Location Type: Remote

Location: Remote • 🇪🇺 Anywhere in Europe

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Job Level

Senior

Tech Stack

AngularAWSFlutterJavaScriptJUnitMockitoNode.jsNuxtPHPReactTypeScriptVue.js

About the role

  • Collaborate with project stakeholders to understand requirements and deliver high-quality solutions.
  • Design, develop, test, and maintain scalable and robust server-side logic, databases, and APIs according to project requirements.
  • Utilize programming languages such as TypeScript or JavaScript for frontend development.
  • Develop, test, and maintain high-quality front-end code for web applications.
  • Utilize modern frameworks like Vue.js, Nuxt, React.js, or Angular for efficient development.
  • Optimize front-end performance and ensure cross-browser compatibility.
  • Integrate front-end interfaces with backend APIs for seamless data flow.
  • Contribute to the enhancement of our codebase by improving quality and documentation and reducing technical debt.
  • Stay updated on current and emerging technologies.
  • Utilize collaborative tools such as Gmail, Slack, Confluence, Jira, and various others for efficient communication, documentation, and project management.
  • Participate in code reviews and design reviews.
  • Document code and technical specifications for future reference.
  • Analyze system performance, respond to incidents within specified deadlines, and provide services during on-call rotations to address system issues.
  • Provide services in the Scrum process, including sprint planning, daily stand-ups, and retrospective meetings, to contribute to project progress and team coordination.
  • Participate in project-critical meetings and provide regular status updates on deliverables.
  • Manage your time independently and effectively to achieve project deliverables, which may require an estimated 40 hours of project-related effort per week.
  • Coordinate with the team during core hours (8:00 am to 11:00 pm Pacific Time) to enhance project collaboration. Some roles or urgent matters may require availability until 12:00 pm Pacific Time on occasion.

Requirements

  • 8+ years of professional software development experience;
  • Deep knowledge of modern JavaScript (ES6+) or TypeScript, CSS, and HTML;
  • Extensive experience with a modern JS framework, such as Vue (preferred), React, or Angular;
  • Flutter experience or mobile experience is a major plus;
  • Experience with unit testing and end-to-end UI testing;
  • Basic understanding of accessibility (WCAG) guidelines and engineering principles;
  • Self-motivation, self-organization, and self-education skills;
  • English on at least an intermediate level (should be able to pass the technical interview in English);
  • Basic knowledge of PHP, server-side JavaScript or TypeScript, or other server-side languages. Basic knowledge of Node.js backend framework;
  • Basic understanding of system design principles.
  • Extensive knowledge of REST
  • Experience in writing well-structured, easily maintainable unit tests (such as JUnit, Mockito, etc)
  • Experience with relational databases
  • Consistent track record of collaborating with large, distributed teams of engineers over documentation and code
  • A desire to learn new technologies and continually develop your professional skills
  • Comfortable working with AWS
  • Experience building / supporting high-load web applications and solving scalability issues
Benefits
  • Upwork is proudly committed to fostering a diverse and inclusive workforce.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
TypeScriptJavaScriptCSSHTMLVue.jsReact.jsAngularNode.jsRESTunit testing
Soft skills
self-motivationself-organizationself-educationcollaborationcommunication