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Software Development Engineer IV, React

ZrgSeattle, WAL6 LeadAugust 12th, 2026
Software Development Engineer IV, ReactWoodbury, MNSeattle, WABoca Raton, FLWe're looking for a Software Engineer and Tech Lead who combines strong hands-on development with the judgment to guide technical decisions. You'll own both the code and the direction.In this role, you'll spend significant time writing production code—building robust, performant front-end systems with React and Next.js on AWS. You'll help set the standard for code review, ensuring the team maintains high standards while growing together. Beyond the code, you'll articulate a clear technical vision for our front-end architecture, helping the team understand the trade-offs behind our decisions and building confidence in the direction we're moving.Purpose/Impact: (Duties & Essential Functions) Design and Development: Architect and build scalable, performant front-end applications using React and Next.js on AWS. Make thoughtful decisions about component architecture, state management, performance optimization, and browser compatibility.Technical Leadership: Lead by example through high-quality code and clear technical judgment. Guide the team through architectural decisions, conduct collaborative code reviews, and mentor engineers on complex front-end problems.Requirements and Planning: Participate actively in planning meetings to understand product goals and user needs. Shape and verify technical requirements, identifying risks and trade-offs early, and pushing back when necessary.Full Lifecycle Ownership: Own features from conception through production—working with product and design to understand requirements, building and testing solutions, and supporting deployment and monitoring.System Reliability: Ensure the stability and performance of front-end systems through proactive monitoring, debugging, and addressing production issues. Drive improvements in build times, bundle size, and runtime performance.Cross-Stack Collaboration: Work across the full stack when needed, collaborating with backend and infrastructure teams to ensure cohesive solutions. Understand how front-end decisions impact overall system architecture.Documentation: Maintain clear technical documentation on architectural patterns, decision-making processes, and system behavior to help the team move faster and make informed decisions.REQUIRED STRENGTHS AND BACKGROUNDExperience: 5+ years of professional front-end development experience with demonstrated technical leadership.Additionally, broad technical knowledge across the full stack (backend, infrastructure, databases) and proven ability to execute effectively across diverse technologies and domains.Education: Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent professional experience).Technical Skills: Deep proficiency in React and JavaScript/TypeScript. Strong understanding of component architecture, state management, performance optimization, and modern front-end patterns.Specialized Skills: Hands-on experience with Next.js and AWS.Proven ability to lead code reviews, mentor engineers, and articulate technical trade-offs to both technical and non-technical stakeholders. Experience optimizing front-end systems for performance and scale.Salary: $135,000-152,000