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:
- For any help or support, reach out to: Show email
PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the iOS Engineer - AI Model Evaluator in London vacancy
- £50k - £65k per annumEstimated...The Role We’re looking for a Senior iOS Engineer who is passionate about building a scalable... ...ecosystem (StoreKit), including subscription models, entitlements, and edge cases (restoration... ...appreciate that individuals may leverage AI tools as part of their job application process...SuggestedHybrid workingFlexible hours
- ...Are you a seasoned IOS Developer driven to innovate in the EdTech and AI space? If you have extensive experience in IOS development and are eager to revolutionise language learning with AI, we want you on our team! About us: At Praktika, we are building the best AI tutors...SuggestedRemote
- £71k - £90k per annumEstimated...industry for the better. Hi, I'm Manuele Maggi, Engineering Manager at Motorway. I'm looking for a seasoned Senior iOS Engineer to join our Mobile engineering group and... ...minds in engineering, product, and design - with AI deeply embedded in how we build and how we work. Join...SuggestedFull-timeHybrid workingOn-siteWork from home
£95k - £120k per annum
...building the next generation of digital health – AI-powered, privacy-first, clinically backed... ...their body better. The job As an iOS Engineer at Flo, you'll help shape the mobile... ...person collaboration and work in a hybrid model, with 3 days per week spent in the office...SuggestedHybrid workingOn-site£107k - £262k per annum
...xAI’s mission is to create AI systems that can accurately understand... ...motivated, and focused on engineering excellence. This organization is... ...We’re seeking an exceptional iOS engineer to join a small, high-... ...engineers to deploy state-of-the-art models globally. BASIC...Suggested- £53k - £70k per annumEstimated...flows.The Accounts Team is one of the key engineering teams that are centrally positioned to... ...on Kotlin (on Android) and on Swift (on iOS), with a growing shared codebase in Rust.... ...Privacy Policy. This information is used to evaluate your suitability for the posted position....On-siteWork from homeFlexible hours
- ...what good looks like across digital LEGO modelling, from full interactive worlds down to sub-... ...specifications, and tooling requirements that engineers and artists can act on. Reporting to the... ..., or validation tasks. Ability to use AI models as part of a modelling or review...
- £31k - £40k per annumEstimated...am looking to get back into photography. I want to do some portrait/ fashion location and maybe even female fitness shoots in London during the spring and summer. If any female models, stylists and MUAs are looking to update portfolios please get in touch with me, TimSummer work
- £75k - £99k per annumEstimated...technically ambitious products with real-world impact. As a senior engineer, you’ll collaborate closely with product, design, and engineers... ...You have extensive experience building and shipping high-quality iOS applications You care deeply about product quality, usability,...Full-timeOn-siteFlexible hours
- £49k - £65k per annumEstimated...that you attend the office a minimum of 1 day per week. Our Engineering Environment Starling engineers are excited about helping us deliver... ...UK, with over 300K ratings and an average rating of 4.9. Our iOS application is entirely written in Swift. It is highly modular...16 hoursHybrid workingOn-siteFlexible hours
- £60k - £80k per annumEstimated...any adjustments throughout the process in whatever way works best for you. Job Description We’re looking for a Senior iOS Engineer to join our Customer Experience team and help continue the success of our iPhone and iPad apps. This role is about delivering high‑...Extra incomeFull-timeFlexible hours
- £68k - £90k per annumEstimated...life—spanning banking, cards, savings, and open banking. This is a high-impact, hands-on engineering role where you'll own the development and quality of the SumUp Consumer iOS application . You'll work directly on the features that consumers interact with every day, collaborating...
- £70k - £93k per annumEstimated...of living, to empowering talented heating engineers to perform outstanding installations, to... ...Heat Geek community is excited to bring an iOS Developer into our team. This is your... ...tax-incentivised scheme ~ Salary that’s evaluated regularly, and based on skills, impact, and...Full-timeSummer workHybrid workingOn-site
- £46k - £61k per annumEstimated...At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid... ...About Engineering at Engine by Starling - We’re looking for iOS Engineers to work on the Engine Platform and make our existing features...16 hoursFull-timeHybrid workingFlexible hours
- ...stimulating English lessons for KS3/4/5 students Devise and implement creative lesson plans aligned with the school's curriculum Evaluate student progress and provide constructive feedback Collaborate with colleagues to enhance the English department's effectiveness...PermanentFull-timeTemporary
- £26k - £34k per annumEstimated...The Prom Gown requires models (UK size 6 to 8) to model for us at the UK's biggest special occasion wear brand. Models will be required to do a Zoom fitting before being offered the shoot. We will offer a contract for each successful model. Requirements: UK size 6...
- £29k - £37k per annumEstimatedWe're looking for a White Female aged 20-35 who is 5ft 10" Tall with long dark hair to be a stand-in for a Music Artist. Filming is on Thursday 25th June in London. Payment is £175 for 10 hours including 1 hour for break. Please apply! Payment is subject ...
£500 per day
...Model, Actors and Extras Urgently Required London Modelling assignments are £1,200 to £2,000 per day, music videos £180 to £300 per day and film extras can earn £90 to £150 per day. Company client, Casting Hub currently looking for Male and Female Adults and Children...Extra incomeLong-term contractFull-time£20 per hour
Payment is subject to Talent Talks commission, this being 15% for subscribed Talent Talks members.- £36k - £48k per annumEstimated...connect with a minimalist aesthetic and want to create strong, considered portfolio imagery together. Currently seeking: Art Director Fashion Stylist Hair & Makeup Artist Model(s) Location shoot, London. Please send portfolio/work links if interested. TFP
£30k per annum
HTB is looking for a Digital Storyteller to help capture and share the life, faith and mission of our church through compelling video content on Instagram and YouTube. This is a hands-on, video‑first role for someone with strong creative instincts, a great feel for social media...$50 - $150 per hour
...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...Remote jobSummer workMercor
London18 days ago- £49k - £65k per annumEstimated...around the world. We hire exceptionally smart, analytical, and hard working people who are lifelong learners. About The Role As an iOS Developer you'll be tasked with working on iOS application development. Working within the software development team, your duties will...Full-timeHybrid workingWork from homeFlexible hours
£14k - £18k per annum
Liberty Woodland School is seeking a Digital Storyteller & Content Creator to help capture and share the life of our school. This is not a traditional marketing role. We are looking for a thoughtful, observant and creative person who enjoys noticing the small moments of...16 hoursPermanentFull-timePart-timeTerm-timeRemoteDay shift3 days/week£100k per annum
...Role: Mid-Level iOS Developer Client: Elite Technology Firm Compensation: Up to £100k + Bonus Location: London (Flex-Remote Options) Experience Level: 2+ Years Overview An elite tech firm are searching for iOS Developers to join a group of highly regarded...PermanentRemote£70k per annum
...iOS and Android Developer– Fintech Flex Hours Up to £70,000 Quant Capital is urgently looking for an iOS and Android Developer to join our high profile client. My Client is a well known global (yet not too corporate) financial software (fintech) business...Remote$60 per hour
...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...Remote jobHourly paySummer workMercor
London11 days ago- Location: Hillingdon, West London A creative and supportive secondary school in Hillingdon is seeking a passionate and dynamic Drama Teacher to join their thriving Performing Arts department on a full-time, permanent basis. This is an exciting opportunity to inspire a love...PermanentFull-time
- Calling all storytellers in Barking! Are you passionate about bringing characters to life and igniting a love for theatre in young minds? Do you possess the creativity to transform any space into a captivating stage? Barking's Thriving School seeks a dedicated and inspiring...
- Are you an actor, performer, or freelancer looking for a fun and flexible side hustle? This role is perfect for building confidence, real-world skills and serious earning potential - while developing one of the most valuable skills you can have in your career: sales and...Weekly payFreelanceSecond jobFlexible hoursShift work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to iOS Engineer - AI Model Evaluator. Be the first to apply!
