Senior Software Engineer, Frontend

Optimal Dynamics develops data-driven freight and transportation planning software. The company is seeking a Senior Frontend Software Engineer to lead the development of its customer-facing SaaS platform, defining frontend architecture and scalable design systems. The role involves building performant interfaces, optimizing quality and reliability, and collaborating with product, design, and backend teams to deliver end-to-end user experiences.

Responsibilities:

• Design, build, and scale performant, accessible, and maintainable frontend systems using modern frameworks (React, TypeScript). Own key UI architecture decisions, including state management, component design, and application structure
• Lead the development and evolution of reusable component libraries and design systems that ensure consistency and scalability across the platform. Collaborate closely with design to deliver polished, user-centric interfaces
• Optimize application performance, load times, and responsiveness. Establish best practices around testing, observability, and frontend reliability
• Partner with product managers, designers, and backend engineers to deliver seamless, end-to-end features. Translate complex domain requirements into intuitive UI/UX solutions

Requirements:

• Bachelor's or Master's degree in Computer Science, or equivalent practical experience
• Senior level expertise in React and modern JavaScript/TypeScript ecosystems
• Proven experience building and scaling complex, production-grade web applications (SPAs)
• Deep understanding of frontend architecture, including state management, performance optimization, and component design patterns
• Experience integrating with APIs and distributed backend systems
• Familiarity with modern frontend tooling, testing frameworks, and CI/CD workflows
• Experience collaborating with design teams using Figma, including interpreting design specs and contributing to design systems
• Experience mentoring engineers, driving technical decisions, and frontend excellence across teams
• Experience building or maintaining design systems or component libraries
• Familiarity with data-heavy or real-time UIs (e.g., dashboards, operational tools)
• Experience working with event-driven architectures (e.g., Kafka)
• Background in logistics, transportation systems, or other complex operational domains
• Development experience beyond the frontend, with the tech stack/tooling outlined below: