Senior Staff Prototyping Engineer (iOS)

Quick Facts

• Role: Senior Staff Engineer focused on prototyping and zero-to-one delivery for Slack’s iOS mobile product

• Focus: Greenfield initiatives, hands-on technical leadership, cross-functional alignment, and shipping first versions of newly imagined features

Description

You will embed as a leader on greenfield, zero-to-one prototyping initiatives for Slack’s iOS mobile experiences, taking ambiguous problems from idea to working prototype and shipped product. You’ll partner with Product and Design while collaborating with Backend and fellow mobile engineers to deliver intuitive, performant, and reliable experiences for millions of users. You’ll also influence engineering decisions beyond your team and set mobile development best practices.

Responsibilities

• Lead engineering development of mobile experiences used by millions across multiple teams

• Drive complex, ambiguous, cross-functional initiatives from technical exploration through production rollout and evolution

• Lead feature prototyping to define the mobile user experience for major opportunities

• Balance user needs, technical constraints, and long-term maintainability with Product and Design

• Influence decisions via technical leadership, product reviews, and mentorship

• Set and evangelize best practices for mobile feature development and operational excellence

• Mentor senior engineers and grow the mobile engineering community

Requirements

• 10+ years of professional software engineering experience, including complex iOS application development at scale

• Experience prototyping paths to production and reorienting organizations for new initiatives

• Experience in fast-paced environments, including zero-to-one teams

• Proven ability to lead large, ambiguous, org-spanning technical initiatives with business impact

• Deep expertise in Swift and modern iOS development

• Strong understanding of iOS architecture, application lifecycle, concurrency, networking, and performance optimization

• Ability to influence product and technical direction across stakeholders and multiple teams

• Bias toward ownership, execution, continuous improvement, and high-leverage prioritization

Benefits

• Benefits and resources to support work-life balance and your best performance

• AI agents to accelerate your impact

• Time off programs, medical, dental, vision, mental health support, paid parental leave, life and disability insurance, 401(k), and employee stock purchasing program