Senior iOS Engineer

Sitoo Kassasystem; Stockholms kommun; On-site; SEK 600,000 - 800,000; Full time

Benefits offered by this job

Inclusive culture

Team support and celebrations

Job summary

A leading technology firm in Sweden is seeking a Senior iOS Engineer to develop and maintain their iOS applications. This role involves improving the app's performance and collaborating with cross-functional teams to deliver a world-class user experience. Ideal candidates will have solid Swift experience and a product mindset. Join a dynamic team dedicated to innovation and continuous improvement in the retail technology space. Competitive salary and an inclusive culture are offered.

Qualifications

• Solid experience building and maintaining complex iOS apps in Swift.
• Strong understanding of mobile architecture, system design, and design patterns.
• Experience working in an agile team environment with modern workflows.

Responsibilities

• Develop and maintain features in our iOS app using Swift.
• Improve performance, stability, and scalability while reducing technical debt.
• Collaborate closely with Product, Design, QA, and other engineers.

Skills

iOS app development

Swift

Mobile architecture

System design

Agile methodologies

Collaboration

Job description

Join our highly skilled team of engineers, designers and product managers — breaking new ground and shaping the future of retail. We dare to dream big, we have the courage to keep raising the bar, and we’re committed to being a force for good in retail - helping both established and fast-growing brands meet the ever-changing expectations of their customers. Sitoo is a fast-growing technology company exploring how far we can take innovation to deliver the world’s best Unified Commerce Platform and Point of Sale. Our technology is used in more than 20 countries - a number that keeps growing thanks to our incredible teams in Engineering & Product. And we have no intention of slowing down. Are you the Senior iOS Engineerwe’re looking for?

Your mission at Sitoo

At Sitoo, we’re building a modern retail platform with global ambitions — and we’re looking for aSenior iOS Engineerto help shape that future.

In this role, you’ll work hands‑on in our iOS codebase, build features used by retailers across the world, and contribute to architectural improvements that set the foundation for long‑term success. You’ll collaborate closely with product and design, and help level up your peers through code reviews and knowledge sharing.

What you will do

• Develop and maintain features in our iOS app using Swift and modern iOS frameworks.

• Improve performance, stability, and scalability while reducing technical debt and modernizing our codebase.

• Contribute to architectural discussions and help shape technical direction in partnership with Staff Engineers and Tech Leads.

• Write clean, testable, and maintainable code that supports our product and performance goals.

• Collaborate closely with Product, Design, QA, and other engineers to deliver a world‑class user experience.

• Participate in code reviews, pair programming, and knowledge sharing sessions.

• Contribute to team processes, engineering practices, and continuous improvement efforts.

What you’ll bring to the table

• Solid experience building and maintaining complex iOS apps in Swift.

• A strong understanding of mobile architecture, system design, and design patterns.

• A product mindset — you enjoy working with cross‑functional teams to solve real customer problems.

• Experience working in an agile team environment with CI/CD, feature flags, and other modern workflows.

• A collaborative and supportive approach to teamwork and code quality.

• Fluency in English, both written and spoken.

Why Sitoo

We are forward thinkers. By turning curiosity into knowledge — and knowledge into continuous improvement — we break new ground and shape the future of retail. We believe in an inclusive culture where everyone feels like they belong. We support each other, win together, celebrate success together, and overcome challenges together. Today, we are close to 100 dedicated experts with a positive and solution‑oriented mindset. Most importantly, we take care of each other, and we never forget to have fun.