Senior iOS Developer - Translators & Dictionaries

Who are we?

Founded in 2001, MobiSystems is a Bulgarian software company dedicated to empowering users with a better choice for office suite apps. Our feature-rich tools - MobiOffice and MobiPDF - offer a seamless, privacy-conscious, and affordable alternative to traditional office suite software for Windows, Android, iOS, and macOS. Trusted by over 550 million users worldwide, MobiSystems is committed to delivering accessible, cost-effective solutions that make work and personal tasks easier. Our headquartered in Sofia with a team of 200 and we have a sales office in San Diego, CA.

What are we looking for? 

We are looking for a Senior iOS Developer to join our Dictionaries & Translators team composed of talented professionals passionate about building innovative, high‑quality applications using the latest Apple technologies.

Our team thrives in a collaborative, creative, and quality‑driven environment, where strong engineering principles, elegant design, and continuous improvement are core values. In this role, you’ll have the opportunity to make a meaningful impact on how people around the world experience language, communication, and translation.

Responsibilities:

• Deliver high‑quality, secure, well‑tested, and maintainable code

• Collaborate directly with Product Managers and key stakeholders to clarify and refine requirements

• Work closely with fellow engineers to enhance and evolve the product architecture, maintaining long‑term stability and performance

• Design and implement robust unit and integration tests to ensure reliability and functionality

• Contribute to a positive, inclusive team culture that encourages collaboration, learning, and knowledge sharing

• Provide guidance and mentorship to less experienced engineers

• Ensure applications fully comply with Apple’s design principles and Human Interface Guidelines

Requirements:

• Strong experience with Swift

• 5+ years of professional iOS development experience

• Solid knowledge of iOS frameworks, including: SwiftUI, UIKit, Foundation / Core Foundation, Core Graphics

• Experience with Flutter - strong advantage

• Experience with Objective‑C - advantage

• Excellent analytical and problem‑solving skills

• Ability to find pragmatic solutions and deliver value despite obstacles

• Enjoyment of working in a fast‑paced, design‑driven product development cycle

• Ability to amplify productivity and code quality using AI coding agents

• Strong passion for learning and staying up to date with industry trends, best practices, and AI‑driven development

• High affinity for Apple’s latest advancements and a commitment to staying current with new technologies

• Degree in Informatics, Computer Science, Engineering, or equivalent - a plus

What do we offer? 

• Working on inspiring products in a team of supportive professionals

• Compelling salary and regular performance assessment with salary review

• Work at the Headquarters of a product company and have a say in the direction of its products

• A great location - right next to a metro station, Paradise Center and the best park in Sofia

• Work from the office, with the option to work from home two days per week

• Opportunities for professional growth and freedom to make an impact

• Multiple secondary benefits: additional health insurance with dental care coverage, sport program, corporate discounts, 25 days paid yearly leave + additional days off, etc.