Talent.com
Mercor
iOS Engineer - AI Model EvaluatorMercor • London, England, United Kingdom
iOS Engineer - AI Model Evaluator

iOS Engineer - AI Model Evaluator

Mercor • London, England, United Kingdom
30+ days ago
Job type
  • Part-time
  • Remote
  • Quick Apply
Job description

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position: iOS Engineer (Coding Agent Experience)
Type: Contract
Compensation: $85/hour
Location: Remote

Role Responsibilities

  • Use frontier AI coding agents to complete and evaluate complex engineering tasks.
  • Review model-generated mobile application code for correctness, quality, maintainability, and performance.
  • Identify bugs, edge cases, and failure modes in model outputs.
  • Compare outputs from multiple frontier models and assess their strengths and weaknesses.
  • Apply professional engineering judgment to realistic mobile engineering scenarios.

Qualifications

Must-Have

  • 2+ years of professional iOS engineering experience.
  • Experience building and maintaining production iOS applications using Swift and modern iOS frameworks.
  • Regular use of AI coding agents such as Cursor, Claude Code, Codex, Windsurf, Gemini CLI, or similar tools.
  • Ability to evaluate model-generated mobile implementations and architectural decisions.

Preferred

  • Experience shipping production mobile applications.

Compensation & Legal

  • $400 per accepted task
  • Typical tasks take approximately 2–3 hours after ramp-up.
  • Compensation is tied to accepted work.

Application Process (Takes 20–30 mins to complete)

  • Upload resume
  • AI interview based on your resume
  • Submit form

Resources & Support

  • For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
  • For any help or support, reach out to: support@mercor.com

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

Create a job alert for this search

IOS Engineer - AI Model Evaluator • London, England, United Kingdom

Similar jobs

Senior iOS Engineer: SwiftUI, AI Tools, Hybrid

MoneyboxGreater London, England, GB
Full-time

Moneybox is looking for a Senior iOS Developer to join its mobile team in the Greater London area.This role emphasizes technical ownership, leading end-to-end project streams, and mentoring fellow ... Show more

 • Promoted

iOS Engineer: Craft Magical AI UIs (SwiftUI)

SpaceXAIGreater London, England, GB
Full-time

SpaceXAI is seeking an exceptional iOS engineer to join a small, high-impact team dedicated to creating the world’s most valuable AI application, judged by the impact it delivers to users.You’ll sh... Show more

 • Promoted

Generative AI ML Engineer for Next-Gen Dating Apps

BumbleGreater London, England, United Kingdom
Full-time

Join our team at Bumble, where we’re revolutionizing online dating through innovative AI-driven experiences.We’re seeking machine learning engineers to spearhead the development of next-generation ... Show more

 • Promoted

AI Enablement Engineer

ClearBankGreater London, England, GB
Full-time

You’ll be joining the Developer Experience team as an AI Enablement Engineer.Reporting to the Engineering Manager, you’ll be part of a fast‑growing business that is challenging the market and doing... Show more

 • Promoted

iOS Engineer — SwiftUI, AI UI & High Performance

Pantera CapitalGreater London, England, United Kingdom
Full-time

A leading AI technology company is seeking an exceptional iOS engineer to join their high-impact team.The ideal candidate will have expertise in Swift and strong skills in performance optimization ... Show more

 • Promoted

Senior iOS Engineer - SwiftUI & AI Audio Platform

Clutch CanadaGreater London, England, GB
Full-time

Clutch Canada seeks a Senior iOS Engineer to enhance its innovative text-to-speech products.Located in Greater London, the role involves leading engineering decisions, shipping production code, and... Show more

 • Promoted

Senior iOS Engineer: Build High-Stakes AI Defense Apps

Sweep360Greater London, England, GB
Full-time

A technology defense company seeks a Mid-Senior iOS Engineer to build high-performance systems that protect critical users.You will leverage tools like Swift and ARKit to develop innovative solutio... Show more

 • Promoted

iOS Engineer

Air AppsGreater London, England, GB
Full-time

As a Senior iOS Engineer, you will play a key role in developing and maintaining our suite of iOS applications, ensuring high performance, scalability, and a seamless user experience.You will colla... Show more

 • Promoted

iOS Engineer for AI-Driven Mobile Code Evaluation

ObsidianGreater London, England, United Kingdom
Full-time

Obsidian is seeking candidates for a mobile engineering project with a leading AI research lab.This role involves using frontier AI coding agents for engineering tasks, evaluating generated mobile ... Show more

 • Promoted

Senior MLOps Engineer: AWS AI Platform (On-site London)

Talenzon groupGreater London, England, United Kingdom
Temporary

Talenzon group is seeking a Senior MLOps Engineer to join our London-based on-site team for a 6-month contract.You will design and implement an enterprise MLOps platform on AWS, deploy production-r... Show more

 • Promoted

Apple AI Apps Consulting Engineer

OmazeGreater London, England, GB
Full-time

Omaze is seeking an experienced engineer to join their team, focusing on building exceptional AI experiences on Apple's platforms including iOS, watchOS, and macOS.You will work closely with custom... Show more

 • Promoted

iOS Engineer (Swift) – Fintech Platform, Hybrid

Starling BankGreater London, England, GB
Full-time

Starling Bank is on the look out for iOS Engineers to work on our Engine platform.You will be tasked with building new features and products from scratch, enhancing our existing offerings for banks... Show more

 • Promoted

iOS Engineer — AI-Powered Mobile Experiences (Swift)

xAIGreater London, England, United Kingdom
Full-time

A leading technology firm in Greater London is on the lookout for an exceptional iOS engineer to develop cutting-edge AI mobile applications.The role demands deep proficiency in Swift and framework... Show more

 • Promoted

AI Interfaces & API Engineer

AnthropicGreater London, England, United Kingdom
Full-time

Anthropic is looking for a skilled software engineer to join the Claude.This role involves building innovative APIs and interfaces that facilitate interactions with advanced AI models.Collaborate w... Show more

 • Promoted

iOS Engineer

Checkout.comLondon, England, GB
Full-time

Get AI-powered advice on this job and more exclusive features.Our mission is to enable businesses and their communities to thrive in the digital economy.We’re the strategic payments partner for som... Show more

 • Promoted

iOS Engineer

MonzoGreater London, England, GB
Full-time

Our mobile engineers have a variety of different backgrounds.There are ~40 iOS engineers at Monzo and we’re looking for more to join the team.Whether you studied Computer Science, worked in a huge ... Show more

 • Promoted

AI/ML Engineer

DLA PiperGreater London, England, GB
Full-time

The AI Engineer will be responsible for designing, deploying, managing, and optimising AI products, machine learning models, and agentic AI workflows.Leveraging the Azure ecosystem, the role will f... Show more

 • Promoted

Senior iOS Engineer — AI-Driven Health Platform

Femtech Insider Ltd.Greater London, England, GB
Full-time

OS Engineer to enhance its top-rated health app for women.This role involves owning feature development, ensuring superior user experiences, and contributing to a Continuous Delivery pipeline.Ideal... Show more

 • Promoted

iOS Engineer

JD.COMGreater London, England, GB
Full-time

OS Engineer responsible for the development of our eCommerce iOS apps in European countries such as the UK, France, Germany, and the Netherlands.In this role, you will implement the mobile user fri... Show more

 • Promoted

iOS Engineer

LystGreater London, England, GB
Full-time

Lyst is a global fashion shopping platform founded in London in 2010 and catering to over 160M shoppers per year.We offer our customers the largest assortment of premium and luxury fashion products... Show more