FullStack Engineer

Sperton Global AS•Village of Highland Falls, NY

1d•Hybrid

About The Position

A fast-growing early-stage creator marketing startup based in New York City is seeking a Full Stack Engineer to join its lean, highly collaborative engineering team. This role is ideal for engineers who enjoy building consumer-facing products end-to-end, thrive in fast-moving startup environments, and want direct ownership over product development across web, mobile, and backend systems. The company is building a platform that helps local businesses and creators collaborate through authentic, high-volume influencer campaigns. Engineers work closely with founders and cross-functional teammates to rapidly ship features, improve user experiences, and scale platform capabilities for both SMB and enterprise customers. This is a highly hands-on role where engineers are expected to operate with autonomy, navigate ambiguity, and contribute across the full product stack.

Requirements

3+ years of experience in full-stack software engineering
Strong experience with React, JavaScript/TypeScript, and Node.js
Experience building and shipping customer-facing applications in startup or fast-paced environments
Familiarity with mobile application development using Flutter and/or native iOS technologies
Experience working with third-party APIs and integrations
Strong product mindset with the ability to operate independently and solve ambiguous problems
Ability to own features end-to-end from concept through deployment
Strong communication and collaboration skills within small, cross-functional teams

Nice To Haves

Experience with Meta/Instagram APIs or creator/social platform integrations
Background building consumer-facing, marketplace, or creator economy products
Familiarity with UIKit and SwiftUI
Experience shipping apps to the Apple App Store
Strong design instincts and product UX awareness
Personal projects, side projects, or portfolio work demonstrating technical curiosity and ownership

Responsibilities

Build and ship full-stack product features across web applications, mobile apps, and backend systems
Develop scalable frontend experiences using React, JavaScript, and TypeScript
Build backend services, APIs, integrations, and business logic using Node.js
Work on mobile product development across Flutter and native iOS environments
Own and maintain third-party integrations, particularly social and creator platform APIs
Build analytics dashboards and reporting features for business users and campaign performance tracking
Contribute to App Store release processes and mobile deployment workflows
Partner closely with founders and internal stakeholders to shape product direction and user experiences
Develop flexible custom solutions for strategic enterprise customers while supporting ongoing product growth
Operate independently in a fast-paced startup environment with high ownership and minimal oversight