Senior iOS Engineer - Paris - Qonto

Description

Our mission

Creating the freedom for SMEs to succeed in business and beyond, by delivering Europe's leading finance workspace. We combine business‑class tools (seamless invoicing, spend management, and pre‑accounting) with unwaveringly attentive 24/7 support, designed to help businesses breeze through all things finance.

Our journey

Founded by Alexandre and Steve in July 2017, Qonto has rapidly gained trust, serving over 600,000 customers. Thanks to our wonderful team of 1,600+ Qontoers, we also made it to the LinkedIn Top Companies French ranking

Our values

• Customer focus – Prioritize customers in everything you do
• Ownership – Own your part, get things done
• Teamwork – Make (team)work easy
• Mastery – Continuously raise the bar
• Integrity – Always do what's right, and respect people

Our beliefs

At Qonto, we're committed to fostering a welcoming environment where everyone can thrive. We prioritize evaluating applicants based solely on skills and potential, ensuring diversity with 55% international team members, 44% women, and 20% parents. Join us in building a workplace that celebrates diversity and individuality. Discover the steps we took to create a discrimination‑free hiring process.

Mission

Join us as an iOS Engineer and help us build the most intuitive mobile banking experience for European businesses. You'll be crafting features that directly impact the daily financial operations of over 600,000 SMEs across Europe, making their business finance simpler and more efficient.

Responsibilities

• Craft cutting‑edge financial features: Work on critical architectural and UI features that will directly impact our end users.
• Foster meaningful collaboration: Work closely with back‑end teams, designers, and product managers to create a unified vision.
• Solve real‑time challenges: Tackle real‑time synchronization issues and spearhead new initiatives.
• Champion quality: Maintain an exceptional level of quality by implementing continuous refactoring and unit testing to consistently enhance the codebase.

What You Can Expect

• Market context: You'll be building for Europe's fastest‑growing business banking market, with 600K+ clients across multiple countries and ambitious expansion plans.
• Technical excellence culture: Work in an environment that prioritizes quality, comprehensive code reviews, component approach and continuous refactoring as standard practice.
• Cross‑functional collaboration: Partner directly with Product, Design, and Backend teams in small, autonomous squads where your technical input shapes product decisions.
• Modern iOS stack: Contribute to a fully Swift‑based app using MVP and Coordinators architecture, with modern CI/CD through GitHub, Firebase, and Bitrise.
• Continuous learning: Access to expert mentorship, Tech Weeklies & Monthlies, and conference opportunities to stay at the forefront of iOS development.

Our stack & practices

Our app is 100% Swift based, built on MVP & clean Architecture principles with modular design (35+ independent modules can already be built and rendered separately). We leverage the Coordinator pattern to ensure a robust and scalable codebase. We are committed to a modern UI: all new screens are built with SwiftUI in MVVM, and we have already migrated 80+ screens, with modern async/await patterns to follow modern standards. We also use Tuist for project generation and Tuist cache to decrease build time.

Our CI/CD pipeline includes GitHub Actions, Bitrise, Firebase Test Lab, Sonar, and Fastlane for comprehensive automation.

We prioritize technical excellence by:

• Adhering to Clean Code / SOLID principles.
• Investing heavily in stability & tests: 30,000+ unit tests and 450+ snapshot tests.
• Adopting a module‑based architecture with 32 reusable modules and a centralized design system ensuring faster builds, clear ownership, and safer iterations.
• Using SwiftyMocky for comprehensive mock generation and protocol‑oriented testing.
• Latest LLMs are used heavily to increase our ability to add meaningful code and rely on AI when necessary.

About Your Future Team

You'll join a 350 strong Product Engineering department, organized into cross‑functional teams across four domains.

These domains include:

• Customer Lifecycle, focusing on account management and compliance.
• Business Account, enhancing payments and financial tools.
• Systems & Monetization, optimizing integrations and pricing.
• Financial Tools, supporting cash flow management and bookkeeping.

The mobile engineering team at Qonto currently has over 140 highly skilled engineers, coming from all over the world, working closely to shape the best business finance solution app. You'll be part of one of our Cross‑Functional Teams, directly contributing to our main app & features.

About You

• iOS Expertise: Proven experience as a Mobile engineer with strong Swift skills and deep understanding of the iOS ecosystem, SDK, and development lifecycle.
• Quality‑driven development: Strong commitment to best practices, including unit testing (XCTests, FBSnapshots), Clean code / SOLID principles, and organized workflows.
• Problem‑solving approach: Pragmatic and solution‑oriented approach to engineering challenges, with ability to deliver tangible value in a fast‑paced environment.
• Collaborative spirit: Excellent communication skills, fluent English and experience working effectively in cross‑functional teams with both technical and non‑technical colleagues.
• Growth mindset: Curious and proactive developer who thrives on learning new technologies and contributing to a product serving hundreds of thousands of users.

Perks

A tailor‑made and dynamic career track. An inclusive work environment. And so much more to help you succeed.

• Offices in Paris, Berlin, Milan, Barcelona, and Belgrade.
• Competitive salary package.
• Meal vouchers.
• Public transportation reimbursement (part or global).
• A great health insurance (depending on the country).
• Employee well‑being initiatives: access to Moka Care to take care of your mental health and great offers for sports and wellness activities.
• A progressive disability and parenthood policy and childcare benefits with selected partners.
• Monthly team events.

Our hiring process

• Interviews with your Talent Acquisition Manager and future managers.
• A remote or live exercise to demonstrate your skills and give you a taste of what working at Qonto could be like.

Find more information about our interview process on our careers website. On average, our process lasts 20 working days and offers usually follow within 48 hours.

Find out more about us

Qonto's Blog | Les Échos I L'Usine Digitale | Courrier Cadres

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