Full Stack Engineer, Data Operations Tooling

Sunday1 months ago

Location

Redwood City, CA

Type

Full Time

Salary

USD 130,000 – 180,000

Level

Mid

Role

Full Stack Engineer

Posted

Feb 19, 2026

Full TimeMid

The role

Summary

Sunday is seeking a Full Stack Engineer for their Data Operations Tooling team, focusing on building innovative platforms to manage and process human motion data for robotics development. The ideal candidate will develop high-performance internal tools that support the company's mission of creating personal robots to automate repetitive household tasks.

What you'll do

Memory Developer Systems: Build and maintain an internal platform to manage thousands of remote memory developers, tracking performance and monitoring hardware health to ensure a consistent, high-quality data stream.

Audit Lab Development: Develop high-performance React interfaces for replaying and verifying human motion data, enabling curation of gold-standard datasets from thousands of uploads.

Data Ingestion & Orchestration: Architect robust backend services to handle massive amounts of data, ensuring it is prepared and optimized for audit and analysis.

Startup Adaptability: Demonstrate flexibility in a high-growth environment, with the ability to shift priorities and contribute across different parts of the technology stack as the company scales.

What we look for

Technical

Full-Stack DevelopmentProficiency in building cloud-native applications with modern frontend and backend technologies

Frontend TechnologiesAdvanced skills in React and TypeScript for creating complex, data-intensive interfaces

Backend TechnologiesStrong experience with Node.js and Python for building scalable backend services

Education

DegreeBachelor's degree in Computer Science, Software Engineering, or related technical field preferred

Experience

Professional ExperienceMinimum 3 years of experience in building and scaling cloud-native applications

Internal ToolingExperience building high-throughput internal platforms or human-in-the-loop systems

Skills

Required skills

ReactAdvanced development of complex, data-intensive user interfaces

TypeScriptStrong typed JavaScript development for robust frontend applications

Node.jsBackend service development and API creation

PythonBackend scripting and data processing capabilities

Nice to have

Startup ExperiencePrevious work as a founding or early-stage employee, with ability to define roadmaps

Synchronized PlaybackExperience with complex video or data synchronization technologies

Marketplace PlatformsBackground in gig-work, data-labeling, or similar distributed work platforms

Compensation & benefits

Salary

USD 130,000 – 180,000 (annual)

Stock options

Available

Benefits

Equity Compensation

Stock options in an innovative robotics startup

Healthcare

Comprehensive medical, dental, and vision insurance

Professional Development

Opportunities for continuous learning and skill enhancement in cutting-edge robotics technology

Flexible Work Environment

Innovative company culture with opportunities to work on groundbreaking technology

Interview process

1
Initial Screening — Phone or video call with recruiting team to discuss background and role fit
2
Technical Assessment — Online coding challenge focusing on full-stack development skills and system design
3
Technical Interviews — Multiple rounds of technical interviews covering frontend, backend, and system architecture
4
Team Fit Interview — Discussion with potential team members to assess cultural and collaborative fit
5
Final Interview — Meeting with engineering leadership to discuss role expectations and company vision