Senior Software Engineer, Frontend

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🕒 April 14

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Optimal Ways

WebsiteLinkedInAll Job Openings

1 - 10 employees

Founded 2011

🛍️ eCommerce

eCommerce • Digital Analytics • Training

Optimal Ways is an agency specializing in digital analytics and optimization for eCommerce. Based in Paris and Lille, the company focuses on enhancing the quality of data, analyzing customer journeys, and optimizing conversion rates on eCommerce sites and applications. With a team of experts in digital analytics, they provide strategic support and training to eCommerce teams, helping them maximize their performance and leverage data effectively. Optimal Ways is committed to sustainable eCommerce and is recognized for its responsible business practices through B Corp certification.

📋 Description

• Frontend Architecture & Development: 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. • Design Systems & UX Excellence: 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. • Performance & Quality: Optimize application performance, load times, and responsiveness. Establish best practices around testing, observability, and frontend reliability. • Cross-Functional Collaboration: 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

• Educated: Bachelor’s or Master’s degree in Computer Science, or equivalent practical experience. • Experienced • 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. • Nice to Have (Bonus Points) • 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.

🏖️ Benefits

• Competitive compensation, including Series C level equity • Health / Dental / Vision 100% covered for employee and 50% for dependents • Life Insurance, with optional supplemental insurance • Flexible Spending Account (FSA) • Health Spending Account (HSA) • 401(k) with match • Unlimited PTO (vacation, personal days, sick days, jury duty, military leave, bereavement) • 11 Holidays • Paid Parental Leave for all employees • Short-term and Long-term Disability Insurances, and AD&D Insurance • Fitness membership reimbursement • Commuter benefits