Senior Frontend Engineer (NYC)
Build high-performance React and TypeScript tools for real-time logistics, own frontend architecture end to end, and help shape systems that coordinate critical operations in NYC.
Location: New York, NY
Work Arrangement: On-site, 5 days per week
Employment Type: Full-time
Compensation: $176,000–$242,000 base + competitive equity + bonus
Visa: Open to visa transfers, including OPT and H-1B transfers
About the Company
A well-funded technology company is building advanced automation and software systems for critical real-world industries.
Its products operate in live environments where software directly coordinates physical operations, including logistics, food delivery infrastructure, transportation, and autonomous systems.
The organization has substantial financial backing and a strong engineering culture. Engineers are given significant ownership over technical decisions and are expected to solve complex problems across software, operations, and physical systems.
About the Role
We are looking for a Senior Frontend Engineer to build and scale real-time applications that power live logistics and operational workflows.
You'll work primarily with React and TypeScript, building high-performance interfaces that consume continuously changing data through WebSockets, Server-Sent Events, and GraphQL subscriptions.
This is a hands-on role with ownership from architecture through production. You'll collaborate closely with backend engineers and operational teams while helping establish frontend engineering standards as the platform scales.
What You'll Do
Design and build high-performance React applications for real-time operational workflows
Build interfaces powered by WebSockets, SSE, and GraphQL subscriptions
Own complex frontend projects from technical design through production rollout
Improve frontend performance, reliability, latency, and scalability
Build data-rich interfaces for live logistics and operational environments
Contribute to mobile applications built with React Native
Collaborate closely with backend engineers and operations teams
Make architectural decisions around state management, data synchronization, and frontend infrastructure
Mentor other engineers and contribute to frontend engineering standards
Help scale the frontend platform as the company's operations expand
What We're Looking For
3+ years of professional software engineering experience
Strong production experience with React and TypeScript
Experience building complex, high-performance frontend applications
Experience working with real-time systems, such as:
WebSockets
Server-Sent Events
GraphQL subscriptions
Live state synchronization
Strong understanding of frontend architecture and performance optimization
Ability to lead technical design from an initial problem through production
Understanding of backend systems and APIs
Strong ownership and ability to work independently
Willingness to work on-site in New York City five days per week
Preferred Qualifications
React Native or other mobile development experience
Experience with logistics, transportation, delivery, marketplaces, or operational software
Experience building mapping, dispatch, fleet, inventory, or real-time tracking interfaces
Experience working on high-throughput consumer or operational platforms
Strong system-design experience
Experience mentoring engineers or leading technical projects
Strong Backgrounds Include
Candidates from companies working on:
Food delivery and logistics
Marketplaces
Fleet and transportation
Real-time operations
Supply chain
Mapping and location-based products
High-scale consumer applications
Experience at companies such as delivery marketplaces, logistics platforms, transportation technology companies, or other high-growth technology organizations is particularly relevant.
What We're Not Looking For
Frontend engineers who have only worked on static CRUD applications
Candidates without meaningful real-time application experience
Engineers without production React/TypeScript experience
Candidates focused exclusively on design systems or internal tooling
Candidates unwilling to work on-site in New York City
Interview Process
Recruiter screen
Frontend technical interview
System design / architecture interview
Team interview
Final leadership interview
The technical process focuses heavily on React, TypeScript, frontend architecture, real-time systems, performance, and ownership.
Why Join
Build software that directly powers real-world operations
Work on high-scale, real-time systems with tangible operational impact
Join an engineering-first environment where engineers have significant decision-making authority
Work across web, mobile, backend integrations, and real-time infrastructure
Take ownership of complex technical problems during a major scaling phase
Competitive compensation, equity, and bonus
- Locations
- United States
- Employment type
- Full-time
- Job location
- New York
Workplace & Culture at Sperton
At Sperton, we believe that great results come from great people.
Our culture is built on trust, collaboration, and a shared passion for delivering quality in everything we do.
We are a Norwegian-owned international company with colleagues across Europe, Asia, and the USA, working together seamlessly across time zones and cultures. Our teams are diverse, yet united by the same goal — to connect people and companies in meaningful ways.
We value openness, initiative, and continuous learning. Everyone at Sperton is encouraged to take ownership, share ideas, and challenge existing ways of working to make our solutions even better.
Even though we operate globally, our approach is personal. We take pride in creating a supportive and inclusive environment where people feel heard, respected, and motivated to grow — both professionally and personally.
