Lead Software Developer (Full Stack)

The Lead Software Developer will serve as the technical backbone of the platform- responsible for the architecture, performance, and reliability of an app that guides users through the entire journey. From our AI-powered search engine and real-time pricing analytics to multi-vendor communication hubs and secure transaction workflows, you will build and scale the systems that make Nestly’s one-stop-shop vision a reality. This role is equal parts hands-on coding and technical leadership., Architect and maintain Nestly’s mobile application (iOS and Android) and supporting backend services, ensuring scalability from launch through rapid user growth.

• Lead 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.

Do you have experience in Team leadership?, * 6+ years of software development experience with at least 2 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., * Experience building real estate, proptech, or marketplace platforms that aggregate data from multiple external providers.
• Familiarity with AI/ML integration in production systems, including recommendation engines, natural language processing, or predictive analytics.
• Experience with real-time communication systems (WebSocket, push notifications, in-app messaging).
• Knowledge of geospatial data, mapping APIs (Google Maps, Mapbox), and location-based search functionality.
• Experience with app store review processes, App Store Connect, and Google Play Console.
• Contributions to open-source projects or a strong public portfolio of technical work.

Pulled from the full job description

• Paid training
• On-the-job training
• Health insurance
• Retirement plan
• Paid time off
• Paid sick time
• Flexible spending account, FSA Capital is an equal opportunity employer, and we foster an inviting, inclusive and collaborative environment.

Pay: $120,000.00 - $150,000.00 per year

Benefits:

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

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.