Front End Engineer

Rayyan Systems, Inc.; Polska; Hybride; PLN 355 000 - 513 000; Plein temps

Résumé du poste

Rayyan Systems Inc. is seeking a Frontend Software Engineer to design, develop, and ship next‑generation frontend features for a SaaS AI‑first research platform. You will collaborate with product, design, and backend teams to deliver onboarding flows, dashboards, and data‑driven interfaces.

You’ll contribute to a scalable frontend architecture, maintain design systems, and stay current with SaaS UI patterns. This remote role offers growth in AI‑powered interfaces and fast‑paced startup dynamics.

Qualifications

• 2+ years frontend engineering experience for web apps.
• Portfolio or GitHub demonstrating engineering process and problem solving.
• Experience with consumer or SaaS products.

Responsabilités

• Design, develop, and implement new frontend features for the platform.
• Build UIs for SaaS applications including onboarding and core features.
• Implement responsive, accessible UI from designs and prototypes.
• Maintain shared component libraries and design system implementations.
• Develop data-driven interfaces with dashboards, tables, filters, and visualizations.
• Partner with product managers, designers, and backend engineers to define features.
• Participate in code reviews and Agile sprint planning.
• Write clean, tested code to improve frontend quality.

Connaissances

HTML/CSS

ES6+

ReactJS

RESTful APIs

Web performance

Git

Agile

Communication

Multi-projects

Frontend engineering

Description du poste

Rayyan is an AI, SaaS Startup company that is developing a research collaboration platform, featuring an AI-assisted workflow to help accelerate the process of searching, extracting and synthesizing relevant information from research studies to inform evidence-based decision making, including evidence-based medicine.

Job Description

This is a remote position.

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
  
• 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 understanding of ReactJS and its fundamentals (JSX, Virtual DOM, component lifecycle, etc.)
  
• Good understanding of asynchronous request handling and RESTful services/APIs consumption
  
• 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

Rayyan is an equal opportunity employer.

Rayyan Systems Inc is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran disability or genetic information or any other reason prohibited by law in employment.