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Senior Software Engineer, Frontend

Justworks - New York, NY, United States - In-office - posted 2026-10-02

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Salary: USD 188,000 - 242,000 / annual

Justworks is a HR and benefits platform helping businesses streamline HR operations, payroll, and benefits administration. The company operates in a data-driven, iterative environment focused on solving HR challenges for growing businesses. You will join the Frontend Engineering team as a Senior Software Engineer, contributing to the development of customer-facing web applications that power Justworks' product suite. This role involves both internal and public-facing applications, with a focus on delivering high-quality user experiences. Key Responsibilities: - Gather and clarify requirements for frontend features and capabilities - Partner with team leads to design and implement clean, effective, on-brand user experiences - Implement designs with high fidelity and attention to detail - Research design patterns and propose technical solutions to common web UI/UX problems - Write, test, and deploy modern web applications - Contribute to hiring and development of the growing frontend team - Mentor and guide team members through code review and knowledge sharing You will be expected to exercise good judgment in problem-solving, demonstrate resourcefulness in overcoming obstacles, communicate effectively across teams, and foster a collaborative environment. The role emphasizes both technical excellence and alignment with company values (Camaraderie, Openness, Grit, Integrity, Simplicity). Technologies: JavaScript, TypeScript, Vue 3, Vite, PostCSS, Playwright, Node.js, Fastify, Golang, MySQL, AWS, Git. Requirements: - Minimum 7+ years of professional frontend development experience - Mastery of JavaScript, HTML, CSS, and at least one modern framework (React, Vue, or equivalent) - Working knowledge of at least one server-side language (Ruby, Python, Golang, or similar) - Strong sense for design and user experience - Ability to build reliable, modular systems that support team collaboration - Experience with performance and security considerations in customer-facing applications

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