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Senior Frontend Engineer

Atoms - New York, NY, USA - In-office - posted 2026-08-28

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Salary: USD 176,000 - 242,000 / annual

Picnic is reinventing the workplace lunch experience by partnering with top local restaurants and batching orders to deliver high-quality, individually packed meals to companies without fees or tips. As a Senior Frontend Engineer, you'll build and scale Picnic's real-time logistics and operations platforms. This role combines high-performance web and mobile development with architectural leadership in a fast-growing startup environment. Key responsibilities include: - Design and build high-performance React applications powered by WebSockets, SSE, and GraphQL subscriptions - Contribute to and shape courier mobile apps built in React Native - Lead technical design for complex features from architecture through production rollout - Own projects end-to-end, driving execution, technical decisions, and cross-functional alignment - Improve frontend reliability, latency, and scalability in real-time, high-throughput environments - Lead debugging, incident response, and performance investigations - Mentor and coach engineers, raising the bar for frontend engineering across the team Required qualifications: - 3+ years of software engineering experience with deep frontend expertise - Strong TypeScript and modern web application development skills - Solid understanding of client networking, async programming, performance optimization, caching, and state management - Experience integrating with GraphQL and REST APIs - Proven ability to lead technical initiatives and influence architecture - Experience mentoring junior engineers - Comfort working outside your comfort zone as the product and team evolve Preferred: experience with delivery/logistics systems at scale, full-stack background, track record improving developer productivity, and familiarity with modern frontend architecture best practices. The role is based in the New York office with five-day-per-week onsite collaboration. You'll drive real impact on a mission-driven team redefining workplace experience for thousands of employees.

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