Senior iOS Developer

Join the best bank to work for in Bulgaria*

Who we are:
Do you want to join a well-established bank with a start-up culture? No, we’re not joking!

We, at tbi, have been one the most profitable banks for years and we are growing at a fast pace. We’re a bank with a long history of success that operates as a start-up and we’re always on the lookout for new opportunities to grow our business. How do we do that?

It's all about our people. Our team is made up of brave, passionate and caring people who don’t just want to follow the same path – we want to transform into mobile-first, state-of-the-art lifestyle ecosystem. Our colleagues love working here – 80% of them would recommend tbi as an employer to their friends and family. Our people are engaged in challenging and meaningful work, inspired to grow their potential and career, encouraged to learn and empowered to take decisions. That’s not corporate babble, it’s what our people say.

Do you want to play a key role in our unique success story?

If so, we're looking for a Senior iOS Developer to join our team on the journey to success!

What You’ll do:

• Development, maintenance, and technical management of iOS mobile banking applications in an Agile environment

• Taking ownership of complex functionalities—from design to production environment

• Implementation of new functionalities and optimization of performance, security, and scalability

• Close collaboration with Product Owners, Business Analysts, designers, QA, and backend developers to define technical solutions and integrations

• Writing unit tests, participating in code reviews, and applying best practices in development

• Participating in architectural decisions and technical planning

• Improving and maintaining CI/CD processes

• Ensuring compliance with security standards and regulatory requirements in the banking sector

Requirements

What you’ll need to succeed:

• Strong practical experience in developing iOS applications with Swift

• Experience with architectural patterns (MVVM / Clean Architecture)

• Experience with RxSwift or another reactive framework

• Excellent understanding of REST API and integrations with backend services

• Practice with unit testing, code review, and good practices in writing code

• Experience with CI/CD and Git

• Understanding of mobile security principles

• Experience in financial/banking applications or technical leadership is an advantage

• English language, written and spoken, is mandatory

What we offer:

• Seize the opportunity to grow your career

• Engage in exciting and meaningful work

• Get recognition for your work and attitude

• Become part of a large, friendly and supportive team with 16+ nationalities

• Get additional private health insurance

• Receive special prices for multisport card and multiple retailers

• Obtain preferential prices for our banking products

• Enjoy a great location in Sofia’s city centre near National Palace of Culture and South Park

• Bring your furry bestie: Let's make work pawsome

Visit our Career Page to learn more about what makes us different.

If this sounds like something you’d be interested in, we'd love to hear from you!

To apply for this position, please send us your CV in English.

We'd love to get back to everyone, but due to the number of applications we receive, we can only contact the shortlisted candidates.

*We are ranked the top bank and top 3 employer to work for in Bulgaria according to Kaderabotim.bg official 2025 employer rankings.

All applications are treated with utmost confidentiality.

By submitting your job application to tbi bank, you confirm that you have read the document named “Information related to personal data processing for job applicants” publicly available on tbi Career page.