iOS Engineer
Kled AI
iOS Engineer
Kled AI
Specializes data marketplace for AI training
ABOUT KLED
Kled is building the largest opt-in human data network in the world.
We are not a labeling firm. We are not a task marketplace.
We are a consumer application where people upload their real photos, videos, and documents and get paid continuously.
We then filter, standardize, and license that data to frontier AI labs and enterprises that need fresh, rights-aware training data.
Since launching our mobile app in 2026, we have:
• Reached #1 on the App Store (Finance) with 0 paid marketing
• Scaled to 600,000+ active data contributors
• Processed 5M uploads per day
• Raised $15M+ from investors behind SpaceX, Airbnb, Coinbase, xAI, OpenAI, Anthropic, Spotify, Lyft, Uber, and more
Our mission is to let anyone download the app and earn a real living wage from uploading their data.
ABOUT THE ROLE
iOS Engineer - Consumer App
Our entire network starts on the phone.
You’ll help build the mobile experience that powers one of the largest human data collection efforts ever created.
You will:
• Design and ship core upload flows (photo, video, document ingestion)
• Build high-performance media handling systems
• Optimize upload speed, compression, and background processing
• Implement fraud detection hooks and verification UX
• Build incentive systems, payout visibility, and contributor dashboards
• Improve retention, engagement, and contributor lifetime value
• Work directly with backend + ML teams to ship full-stack features
WE’RE LOOKING FOR
• 3+ years iOS development experience
• Strong Swift / SwiftUI experience
• Experience shipping consumer apps at scale
• Deep understanding of performance optimization (media-heavy apps preferred)
• Experience with background tasks, file handling, and networking
• Strong product intuition
Bonus:
• Experience with growth loops or marketplace products
• Experience building creator tools
• Experience with Flutter (we are migrating parts of the stack)
• Experience working closely with ML or backend teams
CURRENT STACK
Frontend
• SwiftUI (primary)
• Migrating parts to Flutter
Backend
• PostgreSQL (Supabase)
• S3 storage
• Deno / TypeScript edge functions
• Python ML pipelines
COMPENSATION
• Base salary: $150,000 - $250,000
• $750,000 – $1,500,000 equity
We move fast and work hard.
If you're excited to build the world’s largest consumer app, let’s talk!
GROWTH OPPORTUNITY
You’ll join a team operating at the frontier of applied AI data infrastructure.
In this role, you’ll have the opportunity to:
• Own core systems that power one of the largest human data networks in the world
• Design infrastructure that directly influences what data trains next-generation AI models
• Build at real scale - millions of uploads per day, adversarial environments, global contributors
• Ship alongside a team that has built marketplaces, AI systems, and products used by millions
If you’re excited to move fast, build systems that matter, and help define how human data powers frontier AI, let’s talk.
Kled AI operates as a specialized data marketplace that connects content owners with AI developers. It sources licensed video libraries from film studios and production houses, then processes and labels the footage to create structured, high-quality data for training generative AI models. This data is sold or licensed to AI companies (for example OpenAI and Midjourney) to improve models, including text-to-video systems. Unlike general data brokers, Kled AI focuses on ethically sourced, licensed media and on turning raw video into labeled datasets that meet the needs of model training. Led by David Luan and a co-founder with deep experience in large language models, the company leverages its expertise to streamline data acquisition for AI labs and to create a new revenue stream for content creators. Its goal is to provide reliable data-as-a-service infrastructure that scales the supply of high-quality training data for the generative AI ecosystem.
Explore more opportunities at Kled AI