Developer Jobs in Flushing, NY

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1mo ago

Lead Software Developer (Full Stack)

FSA Capital LLC Flushing, NY

Flushing, NY

1mo ago Closed

$120k - $150k/yr Full time Senior API APIs

This position is no longer accepting applications (closed Jul 21, 2026).

Job Description

Responsibilities

Architect and maintain Nestly’s mobile applications for iOS and Android, along with supporting backend services, ensuring scalability from launch through rapid user growth.
Lead the development of core platform features.
Design and implement the data pipeline that powers Nestly’s institutional-grade market analytics.
Build and maintain integrations with external services including MLS data feeds, certified vendor network APIs, payment processors, and mapping/geolocation services.
Establish and enforce engineering best practices: code reviews, automated testing (unit, integration, E2E), CI/CD pipelines, and documentation standards.
Own production infrastructure: server provisioning, auto-scaling, monitoring, alerting, incident response, and database management with automated backups.
Implement robust security measures for user data, transaction information, and financial documents shared within the platform.
Collaborate with the Product Manager to estimate technical feasibility, scope work, and plan sprints; provide clear technical trade-off analysis for product decisions.
Mentor junior developers as the engineering team grows; establish coding standards and onboarding practices that maintain code quality at scale.
Manage app store submission processes, build configurations, and release management for both iOS and Android platforms.

Requirements

Six or more years of software development experience with at least two years in a technical lead or senior engineering role.
Strong proficiency in mobile development (React Native, Swift, or Kotlin) and backend technologies (Node.js, Python, or Go).
Experience designing and operating cloud infrastructure (AWS, GCP, or Azure) including auto-scaling, load balancing, and CDN configuration.
Hands-on experience with relational and NoSQL databases, query optimization, and data modeling for transaction-heavy applications.
Proven ability to build and maintain RESTful APIs and/or GraphQL services consumed by mobile clients.
Experience implementing CI/CD pipelines and automated testing frameworks for mobile and backend deployments.
Strong understanding of application security, authentication (OAuth, JWT), encryption, and secure data handling practices.
Ability to make pragmatic technical decisions in a startup context — balancing long-term architecture with the need to ship quickly.

Technologies

React Native
Swift
Kotlin
Node.js
Python
Go
AWS
GCP
Azure
RESTful APIs
GraphQL
OAuth
JWT
WebSocket
Google Maps
Mapbox
App Store Connect
Google Play Console

Benefits

Health insurance
On-the-job training
Paid sick time
Paid time off
Retirement plan

Work Location

Onsite: Flushing, Queens
In person

Employer Description

FSA Capital is a New York City–based real estate development and investment firm focused on high-quality residential, commercial, and mixed-use projects across Queens, Brooklyn, and Long Island City. Headquartered in Flushing, we take a hands-on, end-to-end approach to creating spaces that deliver lasting value for tenants, buyers, and the communities we serve.

Equal Opportunity Employer

FSA Capital is an equal opportunity employer, and we foster an inviting, inclusive and collaborative environment.

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