Senior Frontend Engineer

What you’ll do

• Design and build high-performance React applications powered by WebSockets, SSE, and GraphQL subscriptions.
• Contribute to and shape our courier mobile apps built in React Native.
• Lead technical design for complex features and systems, from initial architecture through production rollout
• Own projects end-to-end, driving execution, technical decisions, and cross-functional alignment
• Improve frontend reliability, latency, and scalability in a real-time, high-throughput environment
• Lead debugging, incident response, and performance investigations for frontend systems
• Mentor and coach engineers, raising the bar for frontend engineering across the team

What we’re looking for

• 3+ years of experience in software engineering, with deep frontend expertise
• Strong experience with TypeScript and modern web application development
• Solid understanding of client networking, async programming, performance optimization, caching, and client-side state management
• Experience integrating with GraphQL and REST APIs
• Proven ability to lead technical initiatives and influence architecture and best practices
• Experience mentoring junior engineers and supporting team growth
• Comfort working outside your immediate comfort zone and adapting as the product and team evolve

Preferred Qualifications

• Experience building or operating delivery, logistics, or real-time systems at scale
• Full-stack experience and an understanding of backend tradeoffs and system design
• Track record of improving developer productivity through tooling, patterns, or process improvements
• Familiarity with modern frontend architecture best practices, including performance, security, and usability

Why join us

• Drive real impact: Be part of building the operational engine behind a fast-growing startup that’s redefining how work gets done.
• Own your city: Take full ownership of your city’s performance and see the direct results of your ideas and execution every single day.
• Work with purpose: Join a mission-driven team focused on making the workplace experience better for thousands of people.
• Grow with us: At Picnic, there’s room to grow—personally and professionally—as we scale and take on new challenges together.

What else you need to know

This role is based in our New York office location. As a company driven by innovation and continuous change, close collaboration is essential. We’re constantly reimagining our industry, creating new products, and refining our processes, and we do our best work together. That’s why all of our office-based teams work onsite, five days a week.

The base salary range for this role is $176,000 - $242,000 per year.

Actual compensation will be determined on an individual basis and may vary depending on experience, skills, and qualifications.

Base salary is just one part of your total rewards package. You may also be eligible for equity awards and an annual performance-based bonus.

Benefits Summary (USA Full-Time Exempt Employees):

• Medical, dental, and vision insurance (multiple plans, incl. HSA options).
• Company-paid life and disability insurance (short- and long-term).
• Voluntary insurance: accident, critical illness, hospital indemnity.
• Optional supplemental life insurance for self, spouse, and children.
• Pet insurance discount.
• 401(k).
• Health Savings Account (HSA)
• Flexible Spending Accounts (Healthcare, Dependent Care, Commuter)
• Time Off policies:

• Discretionary vacation days
• 8 paid holidays per year
• Paid sick time
• Paid Bereavement leave
• Paid Parental Leave

Benefits are subject to change at the company's discretion.
Atoms accepts applications on an ongoing basis.

Ready to join us as we serve those who serve others?

#LI-Onsite