iOS Developer (f/m/d)

ZEAL Network SE is a leading international provider of online lottery products, operating for over 20 years with brands like LOTTO24 and Tipp24. As Germany’s largest digital lottery operator and a trusted partner of Spain’s ONCE, we are passionate about shaping the future of lottery experiences.


ZEAL Iberia, S.L.U., a leading Company in the management of Lotteries through Internet, has a contract with ONCE to provide Marketing Services to manage and maximize the sales and results of the JuegosONCE website (www.juegosonce.es) as well as other digital channels (i.e. mobile, apps).

Our team of 350+ professionals from diverse backgrounds is united by a visionary mindset, a passion for collaboration, and a commitment to inspire dreams. At ZEAL, we empower our people to think ambitiously and work together toward a shared purpose: helping people imagine and achieve their aspirations.

We are currently looking for a talented, driven, and well-organized iOS Developer (f/m/d) to join our Apps Development team, in our efforts on providing world-class, unforgettable digital experience to the customers of the JuegosONCE app.

This will include collaborating with Product Owner and UX Design colleagues to deliver inspirational games apps and continue to optimise their performance post release.

• Develop and produce functional solutions with quality designs and code in accordance with architecture design standards, code standards and environment configuration management.

• Being responsible for the whole product lifecycle (development, testing deployment, operations, and monitoring), together with your team.

• Perform code-reviews and pair programming to share your knowledge.

• +4 years’ experience in iOS development (Xcode, ObjectiveC, Swift, JSON, REST).

• Experience using MVVM and familiarity with other iOS Architecture patterns.

• A good understanding of iOS UX/UI guidelines/best practices and the ability to engage with the creative team to deliver pragmatic solutions, balancing design, quality and velocity.

• Experience writing apps using UIKit and Combine.

• Flair for clean code, testability, reusability, and readability (SOLID, TDD).

• Experience of writing User Interface Tests using XCUITests.

• Solid understanding and practical knowledge of the full mobile development and application lifecycle.

• Experience with mobile development issues related to performance optimization, caching, security and native components / SDK's.

• Working knowledge of the general mobile landscape, architectures, trends and emerging technologies.

• Excellent communication skills across all levels of the organization and external 3rd parties/ suppliers.

• Enjoy working within self-organized teams with an eagerness for responsibility. 

• Excellent communication skills and proficient in English and Spanish.

• A modern, dynamic culture grounded in the success of a leading-edge e-commerce company.

• A talented team of ambitious, like-minded colleagues where your knowledge and ideas truly make an impact.

• Ongoing personal growth, supported by an annual development budget of €1,500 to invest in your professional development.

• Trust and autonomy, no micromanagement, just confidence in your ability to deliver and excel.

• Flexible work options with a hybrid setup focused on results.

• Unlimited vacation days in addition to your yearly 25-day vacation allowance, plus days off on your birthday and 24th and 31st December.

• Opportunity for workations abroad using our WorkFlex tool.

• Remote work monthly allowance of €47,20.

• Gym benefit, with a company contribution of up to €40 per month

• Quarterly company events, along with regular team activities and informal gatherings