Staff Mobile Engineer - Retail

Wolt Oy; Helsinki; On-site; EUR 150,000 - 190,000; Full time

Job summary

Wolt Oy is seeking a Staff Mobile Engineer to shape how customers discover, browse, and buy retail products across Wolt, DoorDash and Deliveroo on mobile platforms. You’ll help replace and improve parts of existing apps, owning retail journeys across large-scale B2C applications with multiple teams.

You’ll lead cross-team initiatives, drive native iOS and Android work, evolve server-driven UI and establish engineering standards, while mentoring engineers and championing AI-enabled tooling to

Qualifications

• Deep expertise in mobile development and iOS best practices.
• Experience leading cross-team initiatives at Staff level.
• Track record on large-scale native B2C applications.
• Pragmatic, impact-oriented mindset with strong communication.

Responsibilities

• Lead cross-team initiatives from design to launch with stakeholders.
• Drive native iOS and Android work within shared apps.
• Help evolve server-driven UI approaches.
• Define engineering standards for scalability and reliability.
• Promote AI-enabled tooling to accelerate development.
• Mentor engineers and uphold engineering culture.

Skills

Staff Engineer

Mobile development

iOS ecosystem

Android familiarity

Cross-team leadership

Server-driven UI

Job description

As a Staff Mobile Engineer in Global Retail, you'll shape how customers discover, browse, and buy retail products - apparel, beauty, electronics, auto parts and more - across Wolt, DoorDash and Deliveroo. Retail is a large growth opportunity for the business, and our mission is to be the most trusted and magical way to shop the brands and local stores customers love. You'll play a key role in making that real on mobile - from product discovery through to shopping experience in the apps millions of people use every day.

You’ll join an evolving area where we are replacing and improving parts of the existing consumer apps, owning specific retail journeys within large-scale B2C applications. This means working in a complex environment where multiple teams own different parts of the same app, and where strong technical judgment is needed to create consistency, quality and speed across teams.

What you'll be doing

• Leading complex cross-team initiatives through design, implementation, launch, and operational ownership, partnering with product, design, and business stakeholders to deliver measurable impact.
• Driving and implementing native iOS and Android initiatives within shared consumer-facing apps - where retail teams ship alongside teams owning other journeys in the same applications - balancing speed, quality, and long-term maintainability.
• Working within and helping evolve our server-driven UI (SDUI) approach, going beyond UI implementation to design configurable, component-based views.
• Anticipating future product and architectural needs while establishing engineering standards across architecture, testing, release processes, observability, and incident management - proactively addressing scalability, performance, and reliability.
• Championing AI-enabled tooling and practices that help mobile engineers move faster, without lowering the bar on quality.
• Communicating complex technical decisions to technical and non-technical stakeholders - with clear estimates, timelines, and trade-offs that support predictable delivery.
• Mentoring engineers - including those transitioning into mobile - and upholding engineering culture and best practices across teams.

What we're looking for

• Deep expertise in mobile development and particularly with the iOS ecosystem, including modern best practices, performance optimization, observability, modularity, SDK design, server-driven UI, CI/CD, and the navigating the AppStore processes.
• Experience operating at Staff Engineer level or equivalent scope, having led cross-team / cross-org initiatives.
• A track record working on large-scale, native consumer (B2C) applications, ideally at a company where app ownership is split across multiple teams by vertical or feature area.
• A pragmatic, impact-oriented mindset with a bias for action and simple, effective solutions. Comfortable navigating ambiguity and driving clarity and execution in a fast-changing business environment.
• Ability to influence and align stakeholders through clear communication and technical leadership.
• Experience mentoring engineers and contributing to a culture of continuous learning.
• Practical experience using AI as part of your engineering toolkit, with good instincts for validation, quality, and when not to take output at face value.
• Being familiar with Android, along with iOS, is a plus. Deep expertise in mobile development and the iOS ecosystem, Experience at Staff Engineer level leading cross-team initiatives, Track record with large-scale native B2C applications, Pragmatic, impact-oriented mindset, Ability to influence and align stakeholders, Experience mentoring engineers, Practical experience using AI tools in engineering, Familiarity with Android is a plus