iOS Engineer

• Build and maintain native iOS features in Swift, from architecture and implementation through App Store release
• Partner with design and product to turn complex financial workflows into clear, responsive mobile experiences
• Shape how the app handles authentication, account state, transactions, errors, and interrupted flows
• Work with backend and platform engineers to define reliable app-facing contracts
• Improve quality through thoughtful testing, observability, code review, and attention to real user behavior
• Help set technical direction for iOS and mentor other engineers through collaboration and feedback
• Own features from early product discussions through release and improvement, working closely with design, product, and engineers across the stack

Senior iOS Engineer

• Lead engineering development of Slack mobile experiences used by millions of users daily
• Lead complex, ambiguous, cross-functional initiatives from technical exploration through production rollout and long-term evolution
• Lead feature prototyping to define the mobile user experience for Slack’s biggest opportunities
• Partner with Product and Design to balance user needs, technical constraints, and long-term maintainability
• Influence engineering decisions through technical leadership, product reviews, and mentorship
• Set and evangelize best practices for mobile feature development and operational excellence across the engineering organization
• Mentor senior engineers and contribute to the broader mobile engineering community
• Frame ambiguous problems, align stakeholders, and move from ideas to working prototypes and shipped experiences

Senior Staff Prototyping Engineer, iOS

• Shape the future of Slack on mobile by leading engineering development of experiences used by millions of users daily
• Lead complex, ambiguous, cross-functional initiatives from technical exploration through production rollout and long-term evolution
• Lead feature prototyping to define the mobile user experience for Slack’s biggest opportunities
• Partner with Product and Design to balance user needs, technical constraints, and long-term maintainability
• Influence engineering decisions beyond the immediate team through technical leadership, product reviews, and mentorship
• Set and evangelize best practices for mobile feature development and operational excellence across the engineering organization
• Mentor senior engineers and contribute to the broader mobile engineering community at Slack
• Frame ambiguous problems, align stakeholders, and move rapidly from ideas to working prototypes to shipped experiences

• Use Visual Studio Code on macOS for assigned projects
• Work on projects focused on training and enhancing AI systems
• Apply hands-on expertise in specialized applications to support frontier AI model development
• Collaborate with leading researchers
• Complete work on an independent, flexible schedule
• Provide services for payment based on work rendered

Application Users – Visual Studio Code, macOS

• Use hands-on expertise in DaVinci Resolve on macOS
• Contribute to projects training and enhancing AI systems
• Complete assigned projects on your own schedule
• Capture screenshots meeting the required resolution specifications
• Collaborate with leading AI researchers
• Provide services as an independent contractor

Application User – DaVinci Resolve, macOS

• Own key aspects of the native iOS application
• Contribute to core features and architecture
• Build beautiful, polished user experiences
• Architect elegant, maintainable code
• Keep up-to-date with best practices and bleeding-edge Apple features
• Work with Design and Product teams to build UI that is beautiful, performant, and well-engineered
• Architect and build the app for performance, growth, scalability, ease of future development, and code quality
• Write unit and functional tests
• Investigate, debug, and fix user-reported production issues
• Brainstorm product ideas and improvements with Design and Product teams
• Refactor existing code to improve quality of life for other engineers
• Work within a highly cross-functional team and suggest process improvements

• Own key aspects of the native iOS application
• Contribute to core features and architecture
• Build beautiful, polished user experiences
• Architect elegant, maintainable code
• Keep up-to-date with best practices and bleeding-edge Apple features
• Work with Design and Product teams to build UI that is beautiful, performant, and well-engineered
• Architect and build the app for performance, growth, scalability, ease of future development, and code quality
• Write unit and functional tests
• Investigate, debug, and fix user-reported production issues
• Brainstorm product ideas and improvements with design and product teams
• Refactor existing code to improve quality of life for other engineers
• Work within a highly cross-functional team and suggest process improvements

• Work on specialized application expertise projects involving macOS Sonoma 14.5
• Use macOS desktop features including Finder, System Settings, window and Space management, and bundled applications
• Contribute hands-on, real-world expertise to projects training and enhancing AI systems
• Collaborate with leading researchers
• Complete projects on an independent schedule
• Provide services rendered under project terms

Application User – macOS Sonoma 14.5 Expert

• Work on projects focused on training and enhancing AI systems
• Apply hands-on expertise in macOS Sonoma 14.5, including Finder, System Settings, window and Space management, and bundled applications
• Capture screenshots meeting the required resolution
• Collaborate with leading researchers
• Complete work on an individual schedule
• Work will not involve access to confidential or proprietary information from any employer, client, or institution

Application Users – macOS Sonoma 14.5 Expert

• Use Excel on macOS for spreadsheet modelling, formulas, pivot tables, and charting
• Work on projects training and enhancing AI systems
• Provide human expertise to Mercor's AI lab and enterprise partners
• Collaborate with leading researchers
• Complete projects on an independent schedule; projects may be extended, shortened, or concluded early based on needs and performance

iOS Engineer jobs in United States

Senior iOS Engineer

Senior Staff Prototyping Engineer, iOS

Senior Staff Prototyping Engineer, iOS

Application Users – Visual Studio Code, macOS

Application User – DaVinci Resolve, macOS

Senior iOS Engineer

iOS Engineer

Application User – macOS Sonoma 14.5 Expert

Application Users – macOS Sonoma 14.5 Expert

Application Users – Excel, macOS