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 a month ago
Similar jobs that could be interesting for youBased on the iOS Engineer - AI Model Evaluator in London vacancy
- ...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
£78k - £108k per annum
...have set aside more than £2 billion with our clever automation and AI – that’s the magic of Plum! As recognition for our work, we’ve... .... The Role We’re looking for a user-focused Senior iOS Engineer to join our engineering team. Plum has been featured multiple times...SuggestedFull-timeRemoteFlexible hours2 days/week- £56k - £75k per annumEstimated...work together to transform the future of fashion shopping through AI and technology. At Lyst, we obsess over the customer,... ...for every fashion shopper. The Role We are looking for an iOS Engineer to join our Product Development tribe. You will help build shopping...SuggestedFull-timeOn-siteRemoteFlexible hours
£107k - £262k per annum
...SpaceXAI’s mission is to create AI systems that can accurately... ...highly 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....SuggestedOn-siteWork from homeFlexible hours
- £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
- £49k - £66k 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
- Company: RANDSTAD TECHNOLOGIES Job Type: Contract Salary: £550.00 - £700.00
- £45k - £66k per annumEstimated...international transfers feel as easy as sending a message. As an iOS product engineer, you won't just build that — you’ll decide what it looks like.... ...split between London and Tallinn. We follow a hybrid working model, ensuring enough collaboration in-person and focus time where...Full-timeHybrid working
- £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
- £35k - £51k per annumEstimated...listeners around the world and delivering the right value to them, at the right time. With research, product development, product design, engineering, and marketing all collaborating in one organization, we’re able to quickly create meaningful features and services for millions of...Permanent
- £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...
- £66k - £88k 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 hoursFull-timeHybrid workingOn-siteFlexible hours
£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- £27k - £36k per annumEstimatedMixed race male aged 18-40 wanted for a lighting stand-in shoot. Ideal measurement we are looking for are: Height: 5ft 8 - 5ft 10 Build: Athletic / Slim The shoot will take place in London most likely in Barnet on Thursdy 6th August, exact location TBC. Payment...Immediate start
£175 per day
We are shooting an advert for a UK Retailer and need a Lighting Stand In for one of the lead cast. Please apply if you are similar to these sizes: Height - 5’11" General measurements: 30" waist 30" / 32" inside leg 38R jacket, 15.5" collar 10 UK Shoe Size ...Immediate start- £29k - £39k per annumEstimatedWe are looking for a stand in to join us over a set block of dates. Please see brief and dates below; White Male aged 25-35 Height 6ft Sporty Good availability over 19th August - 23rd September (no weekends or bank holidays) Payment is £175 based on an 11 hour ...
- £29k - £39k per annumEstimatedPayment is subject to Talent Talks commission, this being 15% for subscribed Talent Talks members and 20% for non-subscribed Talent Talks members.
- £30k - £40k per annumEstimatedWe're looking for a White actress aged 35-60 wanted for Theatre show photoshoot. In the images you will be partially recognisable. The photos will be to promote a local theatre shoot in Stratford upon avon. We're looking for someone that can take on the role of the lead...
- £35k - £46k per annumEstimatedWe're Casting for Female Actress with long hair aged in their 30's. Conventionally appealing. Well dressed. Previous acting experience preferred. Hair long enough to be stylised. Professional aura. Someone with good style and a strong wardrobe would be desired...
- £30k - £40k per annumEstimatedWe're casting for Pan European Looking Actor/Actress Aged 21-35 For Socials shoot. must be able to relatively athletically run into a room and run back out again You will need to upload a self-tape video if shortlisted Location: London Paid £250 for half a day shoot...
- £31k - £42k per annumEstimatedWe are working with a client who wants to build a bank of presenters to use for Vox Pops for a variety of brands for future work. There are no set dates but once we know who is interested we will be in touch to check availability when client comes with dates. Fees will...
£400 per day
ACTORS ONLY: Rough, thuggish looking male actors aged 30-55 wanted for a 2 day music video shoot. Please note, this is a NIGHT SHOOT. This is a key role so previous acting experience is essential, if you don't have any acting experience then this role is NOT for you. ...Immediate startNight shift£2,500 per month
Black or mixed race male comedy actor aged 21-40 wanted for a health campaign shoot. This is a featured role so confident acting skills are a must. We are looking for someone with strong comedy instincts, particularly physical comedy and non-verbal performance. You need...Immediate start- £28k - £38k per annumEstimatedWe're looking for a Male Actor aged 40-50 to be a feature role in a short film shoot. The role will require full nudity so please only apply if you are comfortable with this. Filming will be on Friday 4th and Saturday 5th September in London. The shoots are likely to ...Night shiftAfternoon shift
- £27k - £36k per annumEstimatedWe're Casting for a comedy Actor aged 25-40 for a Social Media Shoot. It's a mockumentary sitcom, think Peep Show or The Office. We need naturalistic comic performers with strong timing who can play it straight opposite a costumed character. Each brief has a short scene ...On-site
- £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
- £29k - £40k per annumEstimatedACTRESS ONLY: White female with a dance background aged 20-30 wanted for a music video shoot. Please note, this is a NIGHT SHOOT. This is a co-lead role so previous acting experience is essential, if you don't have any acting experience then this role is NOT for you. ...Immediate startNight shift
£700 - £800 per day
We're currently looking to cast a stage actor for an exciting project. The project involves several filming days in August for a short corporate film for one of our clients, followed by a one-day live event in London in November, where the same actors will perform an on-stage...Daily payImmediate startNight shift1 day/week
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to iOS Engineer - AI Model Evaluator. Be the first to apply!
