Senior iOS Graphics Engineer (Metal)

Senior iOS Graphics Engineer

Own ambiguous product problems end to end: from business and user need to implementation, measurement, and iteration.

ArtWorkout is a mobile drawing app used by millions of people worldwide. We combine creativity, education, and gamification to help users learn to draw, relax, and develop new skills.

You will work with a product serving 1M+ iOS MAU and 1.5M+ Android MAU, about 80 million ClickHouse events per day, and a history of 600+ A/B experiments.

We are looking for a product-minded iOS graphics engineer: someone who understands the business and user need, clarifies ambiguous tasks, proposes solutions, ships them, measures outcomes, and iterates.

What Product Engineering Means Here

• Start with the business goal and user problem, not only a ready-made specification.
• Turn ambiguous problems into clear solutions and execution plans.
• Challenge assumptions and proactively suggest product, UX, graphics, performance, and technical improvements.
• Own delivery end to end: discovery, implementation, release, monitoring, and iteration.
• Work with product, design, analytics, and engineering to define what success looks like.
• Use data and experiments to validate whether the solution actually improved the product.

Responsibilities

• Develop and improve our Metal-powered drawing engine.
• Build interactive drawing and gamification features.
• Own product and technical initiatives from problem definition to production outcome.
• Propose improvements to the drawing experience, engagement mechanics, performance, and reliability.
• Translate business and user needs into practical technical solutions without waiting for a fully specified task.
• Optimize graphics performance and rendering quality.
• Develop client-server integrations.
• Define success signals, monitor released features, and iterate based on results.
• Participate in code reviews and technical and product discussions.

Requirements

• Strong Swift and UIKit skills.
• Experience with Metal or another graphics API such as OpenGL, Vulkan, or DirectX.
• Solid experience building graphics-intensive iOS applications.
• Experience with SwiftUI and Combine.
• Confidence working with a production codebase.
• Strong ownership and the ability to work effectively with ambiguity.
• Product thinking: ability to connect technical decisions with user and business outcomes.
• Ability to communicate trade-offs, propose solutions, and drive work to completion.
• English B1+, Russian B1.

Nice to Have

• Hands-on experience with A/B testing: hypotheses, success metrics, experiment launch, and results interpretation.
• Experience with GrowthBook or another experimentation platform.
• Experience with PencilKit.
• Experience building creative, drawing, or other graphics-intensive applications.
• Experience using product analytics to improve shipped features.

Technologies We Use

Metal, PencilKit, SwiftUI, Combine, Fastlane, GrowthBook, ClickHouse, Redash, Apphud, GitHub, Reviewable.

You will also collaborate with engineers working with JavaScript, React, and Node.js, although experience with these technologies is not required.

What We Offer

• Fully remote work from anywhere in the world.
• Contractor agreement with an individual entrepreneur or private individual.
• Flexible working hours.
• Direct influence on product decisions and the opportunity to own meaningful initiatives.
• Opportunity to work on one of the world's leading drawing apps used by millions of people.