Job Description: Front End Developer

About Resupply

Resupply is a mission-driven logistics technology company revolutionizing charitable donations. We make it seamless for individuals to donate household items like furniture, appliances, and clothing from their homes, while empowering nonprofit partners to maximize the value of those donations. Our platform connects donors, independent haulers, and charities through efficient scheduling, routing, and fulfillment. At the heart of our operations is our native mobile driver app, which enables haulers to manage pickups end-to-end – from notifying donors and navigating routes to capturing photos, processing payments, and confirming deliveries at charity stores. We're a fast-paced, cross-functional team blending product innovation, data science, and operations to scale impact across markets.

We’re now expanding our front-end engineering team to build the next generation of our web and app experiences – AI-driven, responsive, and deeply user-focused. We're seeking a talented Front End Developer to focus on consistently improving platforms across our suite of technology. If you're passionate about building intuitive experiences that drive real-world efficiency and social good, join us in making charitable giving more accessible and effective.

Job Overview

We’re seeking a skilled Front End Developer to lead the evolution of Resupply’s user-facing products across web and mobile. You’ll work on improving the donor, hauler, and charity experiences through clean, scalable, and high-performing interfaces – powered by modern frameworks and new AI-first workflows.

This role is ideal for someone who thrives in a fast-paced, collaborative environment, embraces experimentation, and wants to help define the future of our front-end architecture.

This is a full-time position in Belgrade, Serbia. You'll have the autonomy to drive technical decisions while contributing to our high-priority goals, such as raising donation completion rates to 85% and deploying AI-powered tools for better user support.

Key Responsibilities

• Lead Front-End Development: Architect, build, and maintain React-based web applications and shared component libraries used across web and mobile platforms.
• Integrate AI-Driven Workflows: Experiment with and implement AI-assisted features and developer tooling.
• Continuous Improvement: Constantly identify opportunities to improve performance, developer efficiency, and user experience across the front end.
• Collaborate Across Teams: Work closely with backend, product, and design to deliver smooth, data-rich user experiences.
• React Native (Secondary Focus): Support our React Native app as needed – especially for shared logic, design systems, or cross-platform components.
• Maintain Quality & Velocity: Write clean, maintainable code and drive adoption of best practices for testing, accessibility, and scalability.

Required Qualifications

• Experience: 5+ years in front-end development, including 3+ years building production applications in React.
• Technical Expertise:
  • Strong proficiency in JavaScript/TypeScript, React, Redux, and modern CSS frameworks.
  • Experience integrating RESTful APIs
  • Comfort with AI tools/workflows
• Problem-Solving: Strong debugging and optimization skills; able to tackle real-world product challenges under fast iteration cycles.
• Collaboration: Excellent communication and self-management skills in a distributed, cross-functional team.
• Location: Based in Belgrade, Serbia, and willing to work in-office 1 day a week on Wednesdays.

Preferred Qualifications

• Experience in logistics, e-commerce, or SaaS platforms.
• Familiarity with deploying apps to AWS (or similar cloud).
• Understanding of accessibility standards and offline-first design principles.
• Passion for social impact and mission-aligned work.

What We Offer

• The chance to directly impact our users, nonprofits, and communities by streamlining donations.
• A collaborative culture with incremental rollouts, data-driven decisions, and tools like internal dashboards for monitoring success.
• Opportunities for team collaboration with our US office.
• Professional development budget for courses and tools.