Frontend Web Application Developer

Location: Remote Availability: 35-40 hours per week Working hours: US East business hours Reporting to: Lead developer KoboToolbox has an immediate opening for a Frontend Web Application Developer to fill a full-time position of approximately 35-40 hours per week, for a commitment of at least 1 year. As a member of our team, you will share in the challenge and excitement of writing code used by over 32,000 organizations around the world. These organizations create data-driven change through the collection and analysis of more than 20 million surveys per month. Only candidates who already have experience working on large web applications will be considered. Beyond technical acumen, we are seeking a team member who demonstrates curiosity, initiative, and a cooperative approach to problem solving and decision-making. If you're passionate about leveraging technology to make a positive impact, we want to hear from you! Responsibilities Searching and reading an extensive, long-lived code base to understand existing behavior and conventions. Recognizing when existing conventions may no longer be the best approach and suggesting improvements aligned with contemporary best practices. Writing robust, concise, and reusable code with accompanying tests and documentation. Reviewing other developers' code and providing constructive feedback. Incorporating feedback from code reviews to improve your skills and align with team standards. Using AI-assisted development tools effectively while maintaining responsibility for code quality and correctness. Efficiently investigating bug reports from the support team, creating well-scoped fixes or actionable plans for resolution. Scoping, prioritizing, estimating, and organizing work into manageably sized tasks. Attending regular video-conference check-ins with other members of the technical team. Communicating with the public in conjunction with our support staff or directly through forums, issue trackers, etc. Contributing to discussions about design and architecture collaboratively with the larger team. Performing other related duties as directed by the lead developer. Requirements Required Qualifications Professional experience writing, deploying, and maintaining client-side code for real-world, API-driven single-page applications. Proficiency with TypeScript, React, and related technologies, including styling, state management, and efficient data exchange over HTTP. Unflinching ability to work with legacy technologies such as Backbone and CoffeeScript. Recent experience giving and receiving code reviews. Ability to independently set up and troubleshoot a local development environment, knowing when to ask for help on genuine roadblocks. Interest in data collection (surveying), particularly in humanitarian emergencies and other challenging contexts, and a desire to improve our platform for our users. Proficiency with spoken and written English. Fluency with Git. Overlap with working hours in the Eastern time zone. Ave