Senior/Lead Full Stack Engineer

Summary

Join Upwork's Hybrid Workforce Solutions Team as a Senior/Lead Software Engineer to design and build high-performance, robust systems. Collaborate with stakeholders, develop scalable server-side logic, databases, and APIs, and utilize modern frameworks like Vue.js, React.js, or Angular. This contract position offers the potential for renewal and requires expertise in JavaScript/TypeScript, Python, and modern JS frameworks. You will contribute to codebase enhancements, stay updated on technologies, and participate in Scrum processes. The role demands strong problem-solving skills, collaboration abilities, and experience with high-load web applications.

Requirements

• 8+ years of professional software development experience
• Deep knowledge of modern JavaScript (ES6+)/TypeScript, and Python
• Extensive experience with a modern JS framework, such as Vue (preferred), React, or Angular
• Experience working with AI Agents to any degree (or extensive experience with LLMs)
• 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

Responsibilities

• 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
• Time zone PST +/-3 (or willing to work in a way that overlaps with 9 am-3 pm PST)