Senior Full-Stack Engineer — AI-Powered SaaS Video Platform

SundaySky; New York (NY); On-site; USD 150,000 - 210,000; Full time

Job summary

SundaySky is seeking a Senior Full-Stack Engineer to design, build, test, and operate complex capabilities across our web application, backend services, data integrations, and video creation platform.

This hands-on engineer will own significant product capabilities, combining frontend and backend expertise with architectural judgment and product thinking, delivering production-grade software with limited oversight.

Qualifications

• 7+ years of professional software development experience.
• Strong full-stack development experience with modern JavaScript and TypeScript.
• Advanced frontend experience with a modern framework, preferably React.
• Backend development experience with Node.js, Python, Java, or C#.
• Experience designing REST APIs, event-driven services, and asynchronous workflows.
• Strong understanding of relational/non-relational data modeling, PostgreSQL or similar.
• Experience with cloud-native development, preferably AWS, and containers.

Responsibilities

• Design and implement end-to-end product capabilities spanning frontend, backend, APIs, databases, and third-party integrations.
• Translate product requirements into scalable technical solutions.
• Lead technical design for moderately complex initiatives.
• Break large capabilities into executable components and increments.
• Develop responsive, accessible frontends using modern JS/TS frameworks.
• Build and maintain backend services, APIs, data models, and workflows.
• Integrate with enterprise platforms, data sources, and AI services.
• Contribute to video creation, rendering, and distribution capabilities.
• Identify performance, scalability, reliability, and security concerns early.

Skills

Full-stack development

React

Node.js

Python

Java

C#

REST APIs

Cloud/AWS

CI/CD

Testing

Tools

PostgreSQL

Git

Docker

Job description

SundaySky is seeking a Senior Full-Stack Engineer to design, build, test, and operate complex capabilities across our web application, backend services, data integrations, and video creation platform.

This hands-on engineer will own significant product capabilities, combining frontend and backend expertise with architectural judgment and product thinking, delivering production-grade software with limited oversight.