Senior Frontend Developer / Tech Lead

Description

Senior Frontend Developer / Tech Lead

R&D – Tel Aviv / Ra'anana (Hybrid)

DriveNets is a leader in cloud-native networking software for hyperscalers and service providers building the world’s largest infrastructures for network services and AI platforms. Founded in 2015, DriveNets disrupted high-scale networking markets by transforming how networks are built, scaled, and consumed. Today, more than half of AT&T’s backbone runs on DriveNets’ Network Cloud.

With $587M raised across three funding rounds, we are scaling fast and building a world-class engineering organization to support our continued growth.

The Role

We are looking for a Senior Frontend Developer to join our group, where we build scalable, high-performance systems that manage complex network infrastructures at massive scale.

In this role, you will take end-to-end ownership of a core domain within our application - an area defined by complex user workflows, intricate application logic, and high-scale data interactions. You will be responsible for shaping its technical direction, ensuring architectural soundness, and building the foundation that enables the domain to evolve alongside a broad and ambitious roadmap.

This is a high-impact position that requires strong technical judgment, long-term thinking, and a commitment to engineering excellence in a fast-paced, collaborative environment.

Responsibilities

• Design and implement complex UI workflows with advanced client-side logic.
• Architect scalable frontend solutions to support high-volume data and real-time interactions.
• Build and maintain domain-specific infrastructure, abstractions, and reusable components.
• Lead major technical decisions and guide implementation strategies.
• Integrate real-time data streams into responsive, reliable interfaces.
• Develop advanced visualization components (e.g., graph-based UIs).
• Write comprehensive unit and E2E tests to ensure stability and maintainability.
• Optimize performance, accessibility, and overall user experience.
• Collaborate closely with backend engineers, product managers, and UX designers.
  
  

• 10+ years of experience building modern, production-grade frontend applications.
• 5+ years of hands-on experience building large-scale applications with React in production.
• Deep expertise in JavaScript and TypeScript, including async patterns, event loop, memory management, and advanced type modeling.
• Strong understanding of React architecture and modern patterns (hooks, context, suspense, concurrent features, composition patterns).
• Proven experience designing and implementing scalable frontend architectures.
• Experience managing complex client-side state (Redux, Zustand, or similar).
• Experience building complex, dynamic UIs with intricate workflows and advanced interaction patterns.
• Hands-on experience integrating real-time data streams (WebSockets / SSE).
• Strong knowledge of performance optimization techniques (code splitting, memoization, virtualization, lazy loading).
• Experience writing comprehensive unit and E2E tests (Jest, Playwright or similar).
• Strong CSS/SCSS knowledge, including layout systems and responsive design.
• Experience working in cross-functional Agile teams with strong communication skills.
  
  

• Experience building graph-based or visualization-heavy interfaces (e.g., React Flow, D3, Cytoscape).
• Experience building or contributing to shared component libraries or design systems.
• Experience working in distributed or cloud-native environments.
• Prior ownership of a technical domain or subsystem.
• Experience with monorepos (Nx / Turborepo).
• Familiarity with containerized development environments (Docker/Kubernetes).
  
  

• https://drivenets.com/company/