Staff iOS Engineer

Sunnyvale, CA or San Diego, CA or Seattle, WA or New York, NY

ABOUT US

E-commerce got real-time data infrastructure decades ago. Physical stores still have not. RADAR is changing that. RADAR is building the data infrastructure layer for the physical world, starting with retail. Our hardware-enabled SaaS platform uses proprietary overhead sensors, software, and AI-powered analytics to locate every product in a store, continuously, down to the fixture. We are deployed across 1,500+ stores with retailers including American Eagle Outfitters and Old Navy, processing tens of billions of real-world events every day, delivering 99%+ accuracy in complex, noisy environments - at fleet scale. RADAR is one of the best-funded companies in retail technology, backed by a recent Series B financing at a $1 billion valuation. Inventory accuracy is only the beginning. We believe RADAR can become foundational infrastructure for the physical economy, powering new AI-driven commerce experiences across retail and beyond. Join us if you want to work on a large, unsolved, technically challenging problem with an ambitious team building category-defining technology.

OUR VALUES

• Mission-Driven: We're transforming retail with cutting-edge technology and building something that truly matters.
• Collaborative Team: We thrive on curiosity, shared goals, and solving complex problems together.
• High Impact: You’ll make meaningful contributions from day one and help shape the future of our product and company.
• Clear Communication: We value honesty, humility, and respectful dialogue—everyone’s voice matters.
• Balanced Lives: We work hard, but not at the expense of well-being. We respect time, boundaries, and life outside of work.
• Diverse Perspectives: We believe better ideas come from diverse backgrounds, experiences, and viewpoints.
• Empathy-Driven Design: We build with deep respect for our end users, listening closely to their feedback and needs.

ABOUT THE JOB

We’re looking for a Staff iOS Engineer to shape Radar’s mobile and cross-platform technical strategy and influence engineering direction well beyond the iOS team. We’re redesigning and rebuilding our mobile apps from the ground up, and you’ll be the technical leader shaping it. This is a senior individual contributor role with no formal management duties. You’ll lead through deep technical expertise, sound judgment, and influence. You’ll work with significant autonomy to set long-term architecture, drive innovation, and guide major cross-functional initiatives with product, design, Android, platform, and backend leaders. You’ll stay hands‑on in the code while multiplying the impact of engineers across the organization.

Responsibilities:

• Define the multi-year mobile architecture and technical strategy.
• Co‑lead cross‑platform strategy, including shared code and Kotlin Multiplatform adoption, in partnership with Android and backend leaders.
• Drive innovation by finding new technical bets and platform capabilities that open up product opportunities.
• Guide major cross‑functional initiatives across mobile, platform, and backend teams from concept to measurable outcome.
• Stay hands‑on: design and build the most complex, highest‑leverage parts of the iOS codebase in Swift and SwiftUI.
• Set engineering standards for architecture, quality, performance, and reliability, and get them adopted across teams.
• Mentor Staff and Senior engineers and help grow Radar’s next generation of technical leaders.
• Help drive the technical vision and architecture as we rebuild Radar’s mobile apps, a rare chance to define the foundation of our next‑generation product.
• Plan and drive the migration of existing customers from legacy apps to the new app, keeping the experience smooth and low‑risk with minimal disruption.
• Keep supporting and improving Radar’s legacy products, balancing their stability and customer needs against investment in the new platform.

ABOUT YOU

Required :

• You have extensive experience building and shipping iOS applications, including setting the technical direction for large‑scale, widely used apps.
• You have deep expertise in Swift, SwiftUI, UIKit, and Apple platform internals, including concurrency, performance, and memory management.
• You have set technical strategy across multiple teams or an organization, with clear influence on product and business outcomes.
• You have led major, multi‑quarter initiatives across functions and delivered measurable results.
• You are able to define your own priorities and problem space with little direction, and you work with a high degree of autonomy.
• You are skilled at influencing without authority and can get senior engineers and leaders aligned on complex technical decisions.
• You are an excellent communicator who explains complex tradeoffs clearly to technical and non‑technical audiences.
• You are a proven mentor to senior engineers and a multiplier who raises the bar for everyone around you.
• You are energized by ambiguity and high ownership in a fast‑moving startup.

Preferred :

• You have worked as a Staff+ engineer, or in an equivalent technical leadership role, at a company through a period of significant scale.
• You have led a major app rewrite or re‑platforming and migrated existing users to it successfully.
• You have hands‑on experience with Kotlin Multiplatform or other cross‑platform code‑sharing approaches on iOS.
• You have experience with modular app architecture, and build‑system optimization
• You have shipped features using newer Apple capabilities such as widgets, Live Activities etc.
• You are passionate about design detail, accessibility, and delightful user experiences.
• You have experience developing and shipping a configurable UI
• You have experience building iOS apps on gRPC and Protocol Buffers, including API contract design, streaming, and network performance tuning.

WHAT YOU'LL DO

In your first 30 days, you will:

• Learn Radar’s mission, technology stack and core values.
• Complete onboarding and security compliance training.
• Meet engineering, product, design, and leadership stakeholders to understand company priorities, and ship your first production change.

In your first 60 days, you will:

• Get familiar with Radar’s legacy apps: their architecture, customer usage, and technical debt.
• Make significant contributions to a feature in the rebuilt app.
• Lead architecture and design reviews and begin mentoring Staff and Senior engineers.

In your first 90 days, you will:

• Deliver measurable progress on the rebuild, with core foundations in place and the team building on them.
• Contribute to a new feature in the legacy app, keeping it valuable to customers.
• Get engineering standards and best practices adopted across multiple teams.
• Become a go‑to technical authority across Radar whose input shapes key product and engineering decisions.

At RADAR, your base pay is one part of your total compensation package. The expected base salary range for this position is$172,000 - $250,000. Individual pay is determined by work location and additional factors, including job‑related skills, experience and relevant education or training. You will also be eligible to receive other benefits including: equity, comprehensive medical and dental coverage, life and disability benefits, 401k plan, flexible time off, and paid parental leave. The pay range listed for this position is a good faith and reasonable estimate of the range of possible base compensation at the time of posting.

Research has shown that women & underrepresented minorities are more likely to read lists of requirements and consider themselves unqualified if they don't meet every single one. This list represents what we're ideally looking for, but everyone has unique strengths & weaknesses, and we hire for strength & potential, not lack of weakness.