Senior iOS Graphics Engineer

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.