Senior/Staff iOS Engineer

Quidax; London; Remote; GBP 59,000 - 90,000; Full time

Job summary

A leading crypto platform is looking for an experienced iOS Engineer to optimize app architecture and mentor junior engineers. This role involves leading cross-functional teams and shaping mobile strategies that impact thousands of users. You will benefit from competitive salary, unlimited paid time off, and a fully remote work environment.

Benefits

Competitive salary

Unlimited paid time off

Fully remote work

Personal development fund

Qualifications

• 8+ years of hands-on experience in iOS development.
• Experience leading projects or teams.
• Strong command of mobile architecture principles.

Responsibilities

• Own and optimize our iOS app's architecture.
• Lead cross-functional delivery with product and design.
• Mentor and coach junior and mid-level engineers.

Skills

Swift

SwiftUI

Kotlin Multiplatform

Dart

Job description

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Quidax is where money meets limitless possibilities. We’re making it super easy for individuals, businesses, and fintechs in Africa to access crypto. Our goal? Providing real value for our customers today while shaping the future of money.

About the Role
We’re looking for an iOS Engineer with serious chops — someone who builds smooth, reliable, and high-performing apps. You’ll work on complex mobile experiences that power crypto access for thousands of users across Africa (and beyond). Whether you’re a senior engineer ready to deepen your impact or a staff engineer ready to lead architectural decisions and mentor the next generation, this role was made for you.

What You’ll Be Owning

Drive Mobile Engineering Excellence

In your first 90 days: Own and optimize our iOS app’s architecture—make it scalable, fast, and future-proof.

By 6 months: Lead cross-functional delivery with product and design, shipping major features that delight users.

On-going: Define and enforce iOS best practices, from code quality to performance optimization.

Technical Leadership

Be a thought leader on the team and across the organization

Lead technical decisions around native iOS contributions

Mentor and coach junior and mid-level engineers to elevate the team’s output and culture.

Architect and develop mobile strategy in alignment with Quidax’s growth and crypto roadmap.

Team & Culture Building

Collaborate closely with product, design, and other stakeholders to ship great products

Provide technical structure to teams and collaborate with management and stakeholders to define and implement strategic roadmaps

Biggest Challenges You’ll Tackle

Here’s what will keep you up at night, but you will want to get it solved like yesterday

Balancing rapid feature delivery with bulletproof app performance and stability, no pressure.

Navigating complex integrations between native and web content without losing your mind.

Driving technical strategy and implementation for iOS, including architecture, performance, and security

Raising the technical bar while mentoring others and keeping delivery fast

Balancing product velocity with long-term architectural decisions

Helping define what great looks like for crypto experiences on Mobile

What We’re Looking For

You write clean code. You sweat the small stuff when it matters. You obsess over system design. And you care about impact.

8+ years of hands-on experience in iOS development with proven experience leading projects or teams

Experience architecting and developing solutions to ambiguous problems with significant impact

Strong command of Swift, SwiftUI, and mobile architecture principles

Proficiency in Kotlin Multiplatform and Dart for cross-platform projects

Familiarity with Combine, MVVM, and performance optimization techniques

Nice-to-haves:

Familiarity with blockchain integrations or custody wallets

Experience working in a remote startup environment

You’ve built secure, highly reliable financial systems (bonus point if in crypto space)

Reporting Line

You’ll report to the Engineering Manager. You’ll jam regularly with senior engineers, product managers, and mobile/frontend teammates to build the backbone of our infrastructure.

Why Quidax
At Quidax, we’re building the future of finance in Africa through crypto. You’ll have the freedom to innovate, the space to lead, and the backing to build something that truly scales. If you’re ready to build an engineering org that delivers excellence at scale—let’s talk.

What’s In It For You
When you join Quidax, you’re not just taking a job — you’re jumping into a community that’s bold, remote-first, and building for the future. Here’s what you get:

Competitive salary based on your skills and experience; annual merit-based reviews to keep your growth visible and rewarded

Growth That’s Real

Annual performance reviews + clear promotion cycles; recognition for great work — from shoutouts to milestone rewards

Personal development fund (courses, books, conferences); study leave so you can keep learning

Work That Works For You

Fully remote forever + flexible working hours

️ Time Off That Respects Life

Unlimited paid time off + Nigerian national holidays

Parental, sick, compassionate, and life event leave — we show up for you

Connection That Feels Real

Quarterly remote team hangouts + annual offsite; interest-based communities (SIGs)

Health & life coverage in select locations

TL;DR:
You’ll do meaningful work, grow fast, and have the flexibility to live your best life — all while building something big with people who care.

Let’s build the future of finance together

How to apply:

We love seeing applications that speak directly to us. It’s easy for your application to get lost in a sea of generic ones, especially when we’re sorting through dozens of them. So, make yours stand out! Show us your personality, your passion, and why you’re the perfect fit. We appreciate the effort it takes to create something thoughtful and unique.

If you make it through to the next stage, you’ll likely get a pre-interview questionnaire. Think of it as a chance to show us how you’d approach the challenges we face here at Quidax. Imagine you’re already part of the team and walk us through your thought process as you tackle the problems we throw your way.

What our hiring process looks like

It’s a four-step process!

1. First Connect (with the Recruiter) - 30 mins Let’s talk about your experience, your story, and how you might fit at Quidax.

2. Skills Assessment

Work through a practical scenario; show us your process.

3. Technical Interview - 60 - 90 mins
Show us how you solve problems, live with the team.

4. Culture Chat - 45 - 60 mins
Get to know Quidax culture and the people you’ll work with.

Stay connected with Quidax through LinkedIn and Instagram for the latest updates.