Senior/Lead Javascript Developer

Description

• 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.

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