Mobile Engineer (Flutter)

Overview

Senior Mobile Engineer (Flutter) at Harnham, New York City. FinTech startup building a next-generation investment platform enabling real-time discovery and replication of high-performing trading strategies. Hybrid role based in NYC with three in-office days per week. Base pay range: $150,000.00/yr - $170,000.00/yr + equity.

Responsibilities

Design, develop, and ship features in the Flutter app for iOS and Android

Collaborate with design and product teams to create performant, intuitive user experiences

Optimize app performance and maintain scalable architecture patterns

Write clean, testable code and participate in code reviews

Monitor analytics and crash reports to identify and resolve production issues

Contribute to infrastructure decisions, including CI/CD, testing, and release workflows

Assist with future web development efforts (Next.js) as needed

Requirements

Experience in mobile development with Flutter and Dart

Proven track record of deploying apps to iOS and Android app stores

Strong knowledge of mobile architecture, RESTful APIs, and reactive programming

Familiarity with Figma and modern UI/UX design systems

Exposure to Next.js and React is a plus

Experience with Firebase, CI/CD, and A/B testing in production

AWS experience (EKS, S3, Lambda, API Gateway) preferred

Startup experience valued; big tech backgrounds less preferred

Bachelor’s degree in Computer Science or related field preferred

Compensation & Benefits

Base salary of $150,000 - $170,000 plus equity. Comprehensive benefits include health, dental, vision, and 401(k).

How to Apply

Please express your interest by submitting your resume via the Apply link on this page.

Keywords

Mobile Engineering, Flutter, Dart, iOS, Android, Firebase, CI/CD, REST APIs, FinTech, Cross-Platform Development, AWS, Next.js, Figma, Startup, A/B Testing, Event-Driven Architecture

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Engineering and Information Technology

Industries

Financial Services and Engineering Services #J-18808-Ljbffr