Senior iOS Developer (f/m/x)
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on developing iOS mobile applications across domains like healthcare, banking, media. Key technologies include Swift, SwiftUI, UIKit, Xcode, CocoaPods, SPM, Carthage and architectural patterns Clean Swift, MVVM, MVC. Responsibilities cover designing, implementing, and testing iOS features, maintaining CI/CD systems, ensuring code quality, and creating documentation per standards.

new

Senior iOS Developer (f/m/x)

Company: Sii Sp. z o.o.

from: 10 June 2026
to: 10 July 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:hybrid • full office
Gdańsk, Oliwa
Gdańsk, Oliwaaleja Grunwaldzka 472eView on map

Requirements

Expected technologies

Swift (programming language)
XCode
SwiftUI
UIKit
CocoaPods / SPM / Carthage
iOS

Our requirements

  • At least 5 years of experience in mobile application development for the iOS platform
  • Expertise in Swift and Xcode
  • Proficiency with SwiftUI, UIKit, CocoaPods / SPM / Carthage
  • Knowledge of architectural patterns: Clean Swift, MVVM, MVC
  • Familiarity with user interface design patterns and principles
  • An advanced level of spoken and written English
  • Fluent Polish required
  • Residing in Poland required

Your responsibilities

  • Designing and implementing mobile applications for the iOS platform
  • Creating new functionalities in Swift
  • Maintaining and developing CI/CD systems in the project
  • Collaborating with other team members to design new functionalities
  • Taking care of the code quality
  • Testing the developed functionalities
  • Creating project documentation in accordance with applicable standards

About the project

As our employee, you will have the opportunity to be part of our community of over 80 Mobile Technology Developers.
Our experts are working on a wide range of projects in industries such as healthcare (e.g., the creation of apps to support the lives of citizens), banking (banking apps for individual and corporate customers), media (mobile apps for the presentation of news), loyalty, and many more!
To learn the latest technologies, our Mobile Engineers create internal projects for their own development. They have a personalized training offer and an internal development plan (e-training, book publications, dedicated access to training platforms), a training budget, and the support of a mentor.
Our candidates receive a personalized offer that matches their career plan and preferences, with many different projects to choose from.

This is how we work on a project

  • Continuous Deployment
  • Continuous Integration
Company

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

Recruitment stages

  • 1.
    Send your CV
  • 2.
    Talk to us about your expectations
  • 3.
    Learn more about our projects and choose the best
  • 4.
    Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

This is how we work

Senior iOS Developer (f/m/x)
I apply to:
Sii Sp. z o.o.
Gdańsk, Oliwa
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