Senior Mobile Engineer (React Native)

Tarteel; Polska; Hybrid; PLN 544,000 - 738,000; Full time

Benefits offered by this job

Fully remote work

Unlimited time off with manager/CTO?

Islamic work week + holidays

Job summary

Tarteel is hiring a mobile-focused engineer to design, build, and maintain our React Native app with Kotlin Multiplatform for performance-heavy tasks. You will work offline-first, tackle tough challenges, and help scale features for a large user base.

The role emphasizes strong React Native skills, collaboration with cross-functional teams, and proactive code quality improvements, all while delivering polished, high-quality software.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field.
• 5+ years of experience in mobile or full-stack development.
• 1+ years of experience in React Native development.
• Strong understanding of mobile/web architecture, patterns, and best practices.
• Experience with version control systems (Git) and CI/CD processes.
• Experience with feature flagging and A/B testing.
• Experience serving 1M+ users.

Responsibilities

• Design, develop, and maintain mobile applications using React, React Native, Kotlin, and SQL.
• Collaborate with cross-functional teams to define, design, and deliver new features.
• Complete medium to large features independently with minimal guidance.
• Implement pixel-perfect, responsive designs with a polished UI.
• Focus on delivering functional, delightful user experiences.
• Write clean, maintainable code and adhere to best practices.
• Identify and drive changes across product areas when needed.
• Resolve performance and scalability issues.
• Participate in code and design reviews to ensure quality.
• Provide strategic technical guidance to scale the codebase as features grow.

Skills

React Native

Mobile development

Full-stack development

Education

Bachelor's degree in Computer Science or Engineering

Tools

React

React Native

Kotlin

SQL

Git

CI/CD

Kotlin Multiplatform

Job description

In this role, you will help design, build, and maintain our mobile application. Our mobile app is primarily built with React Native, including some native modules. We’ve also integrated Kotlin Multiplatform for certain performance-critical tasks. Because we build most features in Tarteel to work offline, the kind of challenges you will get to solve will push the limits of your skillset and expose you to challenges you haven’t previously encountered. If you have a strong background in mobile development (especially with React Native) and a passion for building high-quality software, we want to hear from you!

Responsibilities

• Design, develop, and maintain mobile applications using React, React Native, Kotlin, and SQL
• Collaborate with cross-functional teams to define, design, and deliver new features
• Complete medium to large features (each with many tasks) independently without guidance
• Execute on pixel-perfect responsive designs and animations with a high degree of polish and an eye for detail
• Strong alignment towards creating functional and delightful user experiences for the intended audience
• Write clean, maintainable, and efficient code, adhering to best practices
• Proactively identify and drive changes as needed across all product areas
• Identify and resolve performance and scalability issues
• Participate in code and design reviews, ensuring adherence to coding standards and product quality
• Provide strategic insight and technical guidance on how to architect our code base to support our user base as we scale product features

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field
• 5+ years of experience in mobile or full-stack development
• 1+ years of experience in React Native development
• Strong understanding of mobile and web application architecture, design patterns, and best practices
• Solid knowledge of version control systems (e.g. Git)
• Familiarity with continuous integration and deployment tools and processes
• Experience with feature flagging and A/B testing
• Experience with development and maintenance of products serving 1M+ users
• Excellent problem-solving skills and attention to detail
• Strong verbal and written communication skills
• Ability to work independently and in a team-oriented environment
• Availability for meetings from Monday to Thursday between 8am and 12pm Eastern

Preferred Qualifications

• Experience with native (iOS, Android) code development using Swift, Objective-C, Kotlin, or Java
• Experience with Kotlin Multiplatform
• Experience with SQL
• Fully remote work - Work anytime, anywhere
• Dunya + Akhira — Islamic work week + Islamic Holidays and culture
• Unlimited time off with manager approval
• Yearly team retreats and off-sites
• Ability to work in your thobe/abaya or traditional clothes in the comfort of your own home
• Work directly with the core founding team, reporting to the CTO

Interview Process

Our interview process for this role consists of three stages:

• 60-minute technical screener, including a live coding problem
• 60-minute technical interview diving into more depth than the screener and also including a live coding problem
• 60-minute culture fit interview focused on situational scenarios and personal perspectives

About Tarteel

Tarteel was founded with one mission: to strengthen the relationship Muslims have with the Quran. This goal has been at the very heart of Tarteel since its creation, and we continue to strive to provide the proper tools to empower the Muslim ummah to better connect with the words of Allah SWT, nourishing their faith in doing so. Inspired by the Islamic Golden Age, we saw untapped potential in the area of religious technology. We built Tarteel to help Muslims improve their Quranic study using the best digital tools. The Quran is a journey, and Tarteel is your companion.