iOS Engineer

Senior iOS Engineer — Collaboration

Remote · EST (UTC-5) to UTC+2 · Full-time

USA $150k–$180k USD, Rest of World: $80k–$130k USD, depending on location and experience + equity · Reports to Head of Engineering

🌍 OUR MISSION

Slate was born out of our founders’ experiences watching how difficult it is for brand content creators to keep up with the pace and demands of social media. We came together out of a passion for solving real problems, building a company based on deeply held values, and making social content creation effortless for brands.

Our vision is to become the undisputed leader in social media content creation; uniting every part of the creation workflow into a one-stop solution for brands.

THE PITCH

Slate’s iOS app sits at the centre of a big shift: creators and brand managers are increasingly building, managing, and publishing from their phones. That means the native mobile experience has to be excellent — not a cut-down version of the web, but a first-class surface in its own right.

WHAT YOU’LL ACTUALLY DO

RAISE THE PERFORMANCE BAR

• Profile and resolve memory issues, CPU spikes, and rendering bottlenecks using Xcode Instruments

• Apply modern concurrency patterns — async/await, GCD, Operations — to keep the UI responsive under load

• Contribute to Slate’s architecture evolution toward MVVM; bring strong opinions about clean, maintainable iOS structure

• Bring UIKit depth alongside SwiftUI fluency; many of our most performance-sensitive components live in UIKit

• Use Firebase (or comparable real-time stacks) to power near-real-time collaboration signals on the iOS client

SHIP WITH THE TEAM

• Work end-to-end: from scoping with product, through implementation, to iterating on live feedback

• Write sustainable, testable, high-quality code and hold that bar through code review

• Integrate AI tooling naturally into your workflow — we move faster because we use it well

• Share knowledge openly and help the team grow; we’re a collaborative team and it shows

YOU’D BE A GREAT FIT IF

YOUR IOS DEPTH IS REAL

• 5+ years of native iOS development, with production apps that handled media — images, video, or rich asset libraries

• Strong command of Swift, UIKit, and SwiftUI

• Solid understanding of iOS memory management, profiling, and optimisation

• Experience with video rendering (AVFoundation composition / custom compositor), image processing, or real-time collaboration on iOS is a strong plus

• Hands-on with Core Text or TextKit for custom text editor work, or Metal/MetalKit for media processing

• Experience with Firebase Realtime Database or a comparable real-time sync stack on mobile

• Hands-on experience with URLSession for networking

• Comfortable with GCD, NSOperation, and modern concurrency patterns (async/await); Combine is a plus.

• Familiar with MVVM, MVC, and modular architecture patterns

• Persistence (CoreData),

• Testing (Swift Testing / XCTest),

• Agentic development

YOU’VE LIVED MEDIA-ADJACENT PROBLEMS

• You’ve built persistence (CoreData) and networking pipelines that keep working when the app is backgrounded, the network drops, or the device is under pressure

• You’ve used AVFoundation for audio/video handling — not just consumed a player, but built something with it

YOU’VE DONE GROWTH WORK BEFORE (HIGHLY DESIRABLE)

• You’ve worked on a growth, activation, or monetisation surface of a shipped product — onboarding, trial, paywall, or upgrade flows — not just features

• Familiar with real experimentation discipline: proper controls and test groups, statistical significance, guardrails / anti-goals, exposure logging, and longitudinal measurement

• Product analytics chops (Amplitude, Mixpanel, Segment, Statsig, LaunchDarkly, or similar) — you instrument events, funnel attribution, and cohort tracking yourself rather than waiting on a data team

• You’ve owned a new-user journey: getting someone from first open to their first moment of value fast, before they bounce — you’ve applied activation frameworks like the hook model (Trigger → Action → Variable Reward → Investment)

• You treat product changes as hypotheses: design them, run them, ship or kill based on the data — measuring retention, paid uptake, and LTV, not just short-term conversion

• You balance what the data says with what feels right for users — both the “soul” and the “statistics”

YOU WORK THE WAY WE WORK

• You’re a self-starter who thrives with autonomy and communicates clearly across engineering and product

• You use AI tools as a genuine force multiplier, not as a novelty

• You’re comfortable in a fast-moving, async-first, remote environment

• Strong written and verbal English; at least upper-intermediate level

TECH STACK

Swift · UIKit · SwiftUI · MVVM · AVFoundation · Core Data · Combine · GCD / Operations · async–await · Firebase · URLSession · SPM · Swift Testing / XCTest · Xcode Instruments · Fastlane

Bonus familiarity: CoreText / TextKit · Metal / MetalKit, Amplitude / LaunchDarkly or other analytics, A\B Testing tools

(Cross-platform frameworks such as React Native or Unity are not part of this role.)

OUR VALUES

🧑‍🤝🧑 #PeopleFirst We put people first — colleagues and customers alike. We go above and beyond for each other.

⛰️ #EmbraceAdventure We take on new challenges, grow fast, and pitch in outside our comfort zones.

🚀 #InnovateToBeGreat We think big, move fast, and blaze our own path through creativity and invention.

🙋‍♀️ #WinOrLoseWearIt Celebrate your wins and own your failures — both move us forward.

🤝 #StrongerTogether We keep communication open and know we can only win as a team.

THE DETAILS

• Location: Remote — we hire anywhere from EST (UTC-5) to UTC+2. No visa sponsorship.

• Compensation: US $170,000–200,000 | Rest of World $95,000–140,000 USD + equity options

• Reports to: Maciej Kucharek, Head of Engineering

BENEFITS

• 🏡 Fully remote — work where you want

• 🕰 Flex hours — we just ask you’re available for core meetings

• 📈 Equity options

• 🌏 Unlimited PTO — we mean it and actively encourage you to take it

• 🩺 Medical, dental, and vision coverage; market-rate stipend for international health plans

• 💪 $200/month health and wellness stipend

• 🖥 Home office budget or co-working space allowance

• 🌱 Learning and development support

• 👨‍👨‍👧‍👦 A genuinely fun, collaborative team that takes the work seriously and each other warmly

ABOUT SLATE

Slate is a social media creation platform that gives content teams the tools to design, collaborate, and publish — all in one place. We’re a remote-first company backed by leading investors, growing fast, and building software that creative teams genuinely love to use. Our engineering team is small, senior, and serious about craft.

Slate does not offer visa sponsorship for this role.

We are an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Slate is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of background, identity, or experience.