Front End Engineer

Category: Technology Location: Role Overview Rayyan is an AI SaaS startup developing a research collaboration platform with an AI-assisted workflow that helps accelerate searching, extracting, and synthesizing relevant information from research studies to inform evidence-based decision making, including evidence-based medicine. As a Frontend Software Engineer at Rayyan Systems Inc., you will design, develop, and implement new and next-generation features with a focus on frontend technologies. You'll ship end-to-end product experiences from onboarding and core workflows to complex data interactions and AI-powered features. Working within a collaborative environment, you'll partner with product managers, designers, and backend engineers to transform user needs into elegant, functional software. This is a growth role where you'll expand your skills in SaaS product development, AI-first interfaces, and complex frontend architecture while contributing meaningfully from day one. What We're Looking For You're excited about building products that solve real problems in research and evidence-based decision making. You understand that great frontend engineering is about creating experiences that are fast, usable, and delightful. You're hungry to learn, especially about AI-powered interfaces and modern SaaS architecture. You're comfortable with ambiguity and eager to grow your skills while making an immediate impact. Key Responsibilities Product & Feature Development - Design, develop, and implement new and next-generation frontend features for our research collaboration platform - Build and maintain user interfaces for web-based SaaS applications, including onboarding flows, core features, settings, and admin interfaces - Implement responsive, accessible UI from designs and prototypes, solving complex problems with simple, maintainable solutions - Contribute to and maintain shared component libraries and design-system implementations that ensure consistency across the product - Develop data-driven interfaces including dashboards, tables, filters, and visualizations AI-First Experience Engineering - Implement user experiences for AI-powered features, making sophisticated capabilities feel natural and accessible - Build intuitive interfaces for AI interactions, automated workflows, and intelligent recommendations - Balance automation with user control, ensuring transparency and clear feedback in AI-driven flows Collaboration & Growth - Partner with product managers, designers, and backend engineers to define features and align on technical approach - Participate in code reviews, design critiques, and sprint planning within an Agile process - Write clean, tested code and help improve frontend quality, performance, and developer experience - Stay current with frontend best practices, SaaS UI patterns, and AI interface trends Requirements Required Qualifications Experience - 2+ years of demonstrated frontend engineering experience for web applications - Strong portfolio or GitHub profile demonstrating your engineering process and problem-solving approach - Experience with consumer or SaaS products Skills - Proficient understanding of HTML/CSS and ES6+ - Proficient with responsive design and browser compatibility practices - Proficient understanding of ReactJS and its fundamentals (JSX, Virtual DOM, component lifecycle, etc.) - Experience with a JavaScript state management library (e.g. Redux or similar) - Good understanding of asynchronous request handling and RESTful services/APIs consumption - Familiarity with a JavaScript testing framework - Experience with web performance optimization - Proficient understanding of code versioning tools such as Git - Understanding and experience with the Agile process - Excellent communication skills and ability to articulate technical decisions - Self-directed and comfortable managing multiple projects Mindset - Eager to learn and grow in SaaS and AI-first product development - User-centered approach balanced with business pragmatism - Collaborative team player who thrives in cross-functional environments - Comfortable with ambiguity and fast-paced startup environments Nice to Have - Experience building AI/ML-powered product features - Familiarity with SaaS or enterprise applications, especially research or healthcare-adjacent domains - Understanding of accessibility standards (WCAG) and inclusive UI implementation - Experience with TypeScript - Experience with design tools (e.g. Figma) and close designer collaboration - Experience with monorepos, Nx, and CQRS architecture - Experience with E2E testing or analytics-informed product decisions Location Job: Remote Headquarters: Cambridge, Massachusetts, United States Timezone: EMEA timezones required for team collaboration Benefits Rayyan is an equal opportunity employer. Details Originally posted on Himalayas