Senior Full-Stack Engineer, SaaS Platform

SundaySky; Northern (KY); On-site; USD 110,000 - 150,000; Full time

Job summary

SundaySky is seeking a Senior Full-Stack Engineer to independently design, build, test, and operate complex capabilities across our web app, backend services, data integrations, and video creation platform. This hands-on role requires ownership of significant product capabilities from discovery through production deployment.

You will combine frontend and backend expertise with architectural judgment, product thinking, and the ability to raise the technical performance of the broader team,

Qualifications

• 7+ years of professional software development experience.
• Strong full-stack development with JavaScript/TypeScript and React.
• Backend experience with Node.js, Python, Java, or C#.

Responsibilities

• Design and implement end-to-end product capabilities across frontend, backend, APIs, databases, and integrations.
• Translate requirements and UX designs into scalable technical solutions.
• Lead moderately complex technical initiatives and break work into executable components.
• Develop responsive, accessible UIs using modern JavaScript/TypeScript frameworks.
• Build and maintain backend services, APIs, data models, and data workflows.
• Integrate with third-party systems and enterprise platforms.
• Write unit, integration, and end-to-end tests.
• Improve observability with logging, metrics, and alerts.
• Collaborate with Product, UX, QA, DevOps, and engineers.

Skills

7+ years experience

JavaScript/TypeScript

React

Frontend performance

Backend development

REST APIs

PostgreSQL

AWS

CI/CD

Testing strategies

Git workflows

Security best practices

Mentoring

Tools

PostgreSQL

Git

Docker

AWS

Job description

SundaySky is seeking a Senior Full-Stack Engineer to independently design, build, test, and operate complex capabilities across our web app, backend services, data integrations, and video creation platform. This hands-on role requires ownership of significant product capabilities from discovery through production deployment.

You will combine frontend and backend expertise with architectural judgment, product thinking, and the ability to raise the technical performance of the broader team,