Senior Frontend Engineer

Summary

Join CookUnity's Fraîche team as a Senior Frontend Engineer to build and enhance the Flutter-based mobile app and related PWAs. You will collaborate with cross-functional teams, integrating APIs and optimizing user experiences. The role involves working with smart fridge hardware, implementing innovative features, and improving UI/UX based on user feedback. You will contribute to a potential migration to React and React Native. This position requires strong Flutter experience, proficiency in API consumption and state management, and excellent communication skills. The ideal candidate will also have experience with PWAs, IoT integration, and agile methodologies.

Requirements

• Flutter Experience: Senior-level developer with multiple production experiences building and deploying Flutter applications (published on Google Play and/or App Store). While 2+ years of Flutter is ideal, we value demonstrated ownership of features and delivery in production environments over strict time-based criteria
• API & State Management: Proficiency in consuming RESTful APIs and managing app state mobile apps & PWA
• Front-End Fundamentals: Solid understanding of UI design principles, responsive layouts, and performance optimization on mobile. Familiarity with version control (Git) and collaborative development workflows
• Adaptability: Interest or exposure to web/mobile frameworks like React and React Native, and willingness to learn new technologies that align with our stack
• Team Collaboration: Good communication skills and experience working in cross-functional teams. Ability to collaborate with product, design, and backend engineers to deliver features from concept to release
• Language Skills: Intermediate or higher proficiency in English (written and spoken), comfortable working in an international, distributed team environment

Responsibilities

• Develop & Improve Front-Ends: Build new features and enhance existing functionality on our Flutter mobile application and related PWA front-ends. Ensure a high-quality, intuitive UX across both consumer-facing apps and internal tools
• Collaborate on Migration Strategy: Work with the team to plan and gradually implement a potential migration/integration of front-ends to React and React Native, aligning with CookUnity’s broader B2B tech stack. Be open to adopting new frameworks and best practices as the platform evolves
• Cross-Functional Collaboration: Partner closely with backend and full-stack engineers across B2B (including Fraîche) to integrate APIs and ensure smooth end-to-end functionality. Work with product managers and operations teams to refine requirements and improve user workflows
• Hardware & IoT Integration: Implement front-end solutions that interact with our smart fridge hardware – for example, optimizing the in-app scanner feature for fridge unlocks and real-time inventory updates. Bring creative ideas to make fridge-user interactions more seamless and automated
• UX & Workflow Enhancement: Gather feedback from users (office employees, operations staff) and iterate on the UI/UX of our apps. Streamline processes like restocking workflows in the ops PWA or the in-app purchase flow for end users, continually improving usability and efficiency
• Quality & Best Practices: Write clean, maintainable code with proper state management. Participate in code reviews and ensure high performance and responsiveness of all front-end components. Contribute to testing, documentation, and continuous deployment of the front-end apps as needed

Preferred Qualifications

• PWA & Web App Development: Experience building Progressive Web Apps or responsive web front-ends (e.g. using Flutter Web or JavaScript frameworks like React). Understanding of how to create app-like experiences on the web
• IoT/Hardware Integration: Familiarity with applications that interact with hardware or IoT devices. Enthusiasm for connecting software with physical products – bonus if you’ve worked on projects involving scanners, MQTT, RFID/NFC, or smart devices
• Agile & Remote Work: Comfortable with agile development methodologies and asynchronous collaboration. Experience using tools like Jira/Trello for task tracking and Slack/Meet for remote communication
• Continuous Improvement: A proactive mindset toward improving code quality and developer experience. Experience with CI/CD pipelines for front-end apps and automated testing is a plus
• Startup Mindset: Thrives in a fast-paced, innovative environment. Previous experience in a startup or product-focused team where you wore multiple hats is advantageous

Benefits

• Get paid in USD, Crypto, Euro, ARS. Whatever your choice! We use Deel to make things easier for you!
• Work remotely: design the life that you want
• Enjoy 15 business days of vacation each year from the start date
• 16 fully paid Argentinean holidays
• Healthcare Benefit: Monthly stipend to use in your preferred healthcare provider
• 5-year Sabbatical: After 5 years with CookUnity, you get a 4-week paid sabbatical
• Paid family leave
• Compassionate Leave: 3-5 days each time the need arises
• Customize the benefits that suit your needs! Access a range of perks tailored to you, including learning opportunities, wellness memberships, delivery apps, and more through our comprehensive benefit platform
• Personalized English coach