Mobile Developer, iOS

Neurolabs

Mobile Developer (iOS) at Neurolabs, owning SDK integrations and enhancing on-device ML for retail execution. Lead key client integrations and manage app performance.

Posted 4/30/2026full-timeLondon • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

GraphQLiOSPyTorchSwiftTensorflow

About the role

Key responsibilities & impact

Own the mobile layer across SDK integrations, on-device ML, and ZIA Capture - and make it the most reliable part of what we ship.
Lead SDK integrations with partners and clients - you own the integration between 375's platform and Neurolabs' technology, ensuring both products work seamlessly together.
Drive mobile app integrations with key clients - Smollan, CPM, and Randstad - working alongside Customer Success to deliver these successfully.
Manage versioning, documentation, and direct support for partner and client engineers integrating our SDKs into their own products.
Maintain and extend our camera SDK library, covering real-time image quality checks including blur, focus, lighting, exposure, framing overlays, and domain-specific capture guidance.
Manage distribution via SPM and keep the SDK stable, documented, and integration-ready.
Deploy models end to end - PyTorch to Core ML conversion, quantisation, and performance profiling across device tiers.
Run vision models including YOLO, Grounding DINO, and similar VLMs natively on device for real-time image processing.
Keep ZIA Capture stable - resolving bugs and shipping feature development that connects the mobile layer to our backend technology.
Own authentication, REST/GraphQL API integration, and custom camera capture flows within the app.
Improve and extend the existing CI/CD pipeline for builds and releases, and maintain Cordova plugin integrations for current clients.

Requirements

What you’ll need

Startup background - has worked in a pre-seed, seed, or Series A environment, with evidence of wearing multiple hats, moving fast, and delivering under resource constraints.
Standalone mobile developer - has operated as the sole or lead mobile developer on a product, with end-to-end ownership from scoping through to shipping and maintaining in production.
On-device ML in production - has shipped a mobile feature powered by an on-device ML model, not just a prototype. Evidence of model conversion pipelines, quantisation, performance profiling, and edge case handling. Bonus for vision models such as YOLO, Grounding DINO, or similar VLMs.
SDK built from scratch - has designed and shipped an SDK as a product, with evidence of versioning, documentation, and direct support of integrating engineers.
Live app ownership - has maintained a live application over time, fixing bugs, shipping incremental features, and keeping a product stable.
External collaboration - has worked directly with external engineers or partner teams on a shared technical goal.
CI/CD and release ownership - has set up or meaningfully improved build and release pipelines.
Evidence of curiosity - personal projects, experimental work, or active use of AI tooling. Someone who builds outside of their day job and stays ahead of what is coming.
Swift / iOS (native) - deep, primary platform focus.
On-device ML deployment - experience deploying vision models on-device using Core ML, ONNX Runtime, or TensorFlow Lite, with a solid understanding of model optimisation for mobile constraints.
Model conversion pipelines - PyTorch to Core ML or TFLite, with performance profiling across device tiers.
SDK development and distribution.
SPM packaging.
GraphQL integration.
CI/CD pipelines.
Active use of AI tooling.

Benefits

Comp & perks

Equity share options - we operate an EMI share option scheme, so when the company grows in value, you share in it. Options vest over 48 months with a 12-month cliff.
Pension - we contribute 3% through Penfold via salary sacrifice, with 5% employee contributions. Auto-enrolment applies after a 3-month postponement period, though you can join sooner if you'd like.
Hybrid-first - minimum 2 days a week in our London office near Liverpool Street Station with flexibility built around delivery and trust.
Perks at Work - access to thousands of discounts across 30,000+ brands via CharlieHR, including up to 44% off cinema tickets and 15% off high street retailers.
Cycle to Work scheme - purchase a bike and accessories in a tax-efficient way through salary sacrifice via Cyclescheme.
Holiday Purchase scheme - buy up to 5 additional days of annual leave per year, spread across monthly salary deductions.
25 days annual leave plus bank holidays, with the option to carry forward up to 3 days.
Friday office lunch - every Friday in the London office, lunch is on us.
Company socials - throughout the year we take time to reflect, reconnect, and recharge together.
AXA private medical insurance - Neurolabs covers the full premium. Cover includes cancer treatment, diagnostics, physiotherapy, counselling, and European travel insurance. Dental and optical handbooks also available.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

on-device MLSDK developmentmodel conversion pipelinesperformance profilingreal-time image processingCI/CD pipelinesREST APIGraphQLSwiftiOS

Soft Skills

external collaborationevidence of curiosityend-to-end ownershipproblem-solvingcommunication