Senior Staff iOS Prototyping Architect

Salesforce, Inc.; California City (CA); On-site; USD 218,000 - 401,000; Full time

Job summary

Salesforce, Inc. is seeking a Senior Staff Engineer for Slack's mobile team to shape the future of Slack on mobile.

You will serve as a Prototyping Engineer, embedding as a leader on greenfield initiatives, influencing product and design direction, and delivering first versions of new features for millions of users worldwide. You will collaborate with Product, Design, Backend, and mobile engineers to drive ambitious opportunities, balancing user needs with technical constraints, while mentoring

Qualifications

• 10+ years of professional software engineering experience, including significant experience building complex, high‑craft iOS applications at scale.
• Proven track record of moving outside of organizational boundaries to start new initiatives, prototype the path to production, and reorient the organization to support the new initiative.
• Experience working in fast‑paced environments, whether at a start‑up, incubator, or zero‑to‑one team inside a larger enterprise.
• Proven track record of leading large, ambiguous, org‑spanning technical initiatives with significant business impact.
• Deep expertise in Swift framework and modern iOS development.
• Strong understanding of iOS architecture, application lifecycle, concurrency, networking, and performance optimization.
• Demonstrated ability to influence product and technical direction through expertise and collaboration, driving alignment across executive stakeholders, Engineering/Product/Design leadership, and multiple teams.
• A bias toward ownership, execution, and continuous improvement, with the judgment to prioritize the highest‑leverage work across the organization.

Responsibilities

• Shape the future of Slack on mobile by leading the engineering development of experiences used by millions of users every day.
• Lead the most complex, ambiguous, cross‑functional initiatives from early technical exploration through production rollout and long‑term evolution.
• Lead feature prototyping to define the mobile user experience for Slack’s biggest opportunities.
• Partner closely with Product and Design to shape experiences that balance user needs, technical constraints, and long‑term maintainability.
• Influence engineering decisions beyond your immediate team through technical leadership, product reviews, and mentorship.
• Set and evangelize best practices for mobile feature development and operational excellence across the broader engineering organization.
• Mentor senior engineers and contribute to the growth of the broader mobile engineering community within Slack.

Skills

iOS development

Swift

Leadership

Cross-functional teamwork

Mentorship

Product collaboration

Tools

Swift Concurrency

Combine

Dependency Injection

Job description

Salesforce, Inc. is seeking a Senior Staff Engineer for Slack's mobile team to shape the future of Slack on mobile.

You will serve as a Prototyping Engineer, embedding as a leader on greenfield initiatives, influencing product and design direction, and delivering first versions of new features for millions of users worldwide. You will collaborate with Product, Design, Backend, and mobile engineers to drive ambitious opportunities, balancing user needs with technical constraints, while mentoring