Frontend Engineer (mobile & Web)

About the role

BLVCK SAPPHIRE is seeking a talented Frontend Engineer to design and develop innovative digital products across mobile and web platforms. You will work closely with product managers, designers, and backend engineers to deliver intuitive, scalable, and reliable user experiences.

Key responsibilities

• Design, develop, and maintain mobile and web applications focusing on logistical workflows and high‑density data environments.
• Translate product requirements into scalable frontend architectures and intuitive user experiences.
• Collaborate with designers to improve interfaces, workflows, and overall product usability.
• Build reusable components, frontend libraries, and design systems supporting multiple products.
• Integrate frontend applications with backend services, APIs, authentication systems, and real‑time communication platforms.
• Optimize performance, responsiveness, reliability, and accessibility of applications.

Required profile

• Strong proficiency in React Native, React, Next.js, TypeScript, and JavaScript.
• Experience building production‑grade mobile and web applications.
• Solid understanding of frontend architecture, component‑driven development, and state‑management patterns.
• Experience working with REST APIs, GraphQL, WebSocket, and real‑time data applications.
• Familiarity with modern development tools, testing practices, and Git‑based workflows.

Required skills

• React Native
• React
• Next.js
• TypeScript
• JavaScript
• REST APIs
• GraphQL
• WebSocket
• AWS
• Figma
• Sketch
• Penpot
• Git

What we offer

• Competitive compensation based on experience and expertise.
• Fully remote working environment.
• Opportunity to build impactful products from concept through production.
• Exposure to modern technologies across AI, cloud computing, and enterprise software.
• Performance‑based incentives and project bonuses.