Senior Android Developer

Project overview

Salary: 1000 – 1200/ MD + VAT (B2B)

Work model: elastic hybrid (with occasional visits to the client’s office – 1 x week)

Why choose this offer?

Project

We are looking for a Senior Mobile Developer to support a project for one of Poland’s leading e-commerce platforms. The engineer will work within a team responsible for the technological layer of ad delivery in a large-scale mobile application. You will work closely with product owners, designers, and other engineers to translate user needs into robust, high-performance mobile experiences. This role is ideal for someone with solid experience in mobile development, a strong understanding of software engineering principles, and a desire to grow their expertise in a fast-paced e-commerce environment.

What you will be doing on this postion:

Expected competences and knowledge

• Working in a team you can always count on we have on board top-class specialists and experts in their areas of expertise
• A high degree of autonomy in terms of organizing your teams work – we encourage you to develop continuously and try out new things
• Work on a consumer-focused mobile project improving category experience and user interactions, directly impacting business results
• Design, develop, test, and deploy features, ensuring high quality, performance, and responsiveness
• Collaborate with product, design, and other engineering teams to define and implement innovative solutions
• Participate in code reviews, contribute to technical discussions, and help maintain high code quality standards
• Identify and resolve performance and scalability issues
• Continuously improve our development processes, tools, and infrastructure
• 5+ years of commercial experience in native Android development (Kotlin)
• Strong understanding of mobile application architecture patterns (e.g., MVVM, MVI, Clean Architecture)
• Experience with REST APIs and asynchronous programming
• Proficiency in writing unit and integration tests
• Familiarity with version control systems (e.g., Git)
• Solid understanding of software engineering principles, data structures, and algorithms
• Experience with continuous integration and continuous delivery (CI/CD) pipelines
• Good communication skills in English, both written and spoken

Nice to have

Technologies you’ll work with

Client – why choose this particular client from the Jit portfolio?

Our Client dominates the Polish e-commerce arena as the market leader since 1999. With a user base of over 20 million and growing, this well-established platform is at the forefront of e-commerce, constantly striving for growth through market expansion and investment. As a major player in technology, our Client boasts a talented IT team of over 1,000 employees who focus on developing their own cutting-edge technologies.

Jit Team has had a successful partnership with our Client since spring 2021, with multiple software development teams dedicated to our Client’s platforms. These teams operate autonomously, designing platform components through micro-services.

Working with our Client offers a chance to contribute to a solution used by millions on a daily basis and to tackle the challenge of delivering software at a massive scale, where even a single second of delay can have a significant impact. This project provides a unique opportunity to work with state-of-the-art technologies and tools, making it a rare and valuable experience.

About Jit Team

The Human factor of IT – it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme.

Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.

• Experience with high-traffic mobile applications
• Knowledge of RxJava/RxKotlin, Coroutines, or Jetpack Compose
• Familiarity with A/B testing
• Open-source contributions or active GitHub profile
• Experience in Agile/Scrum environments
• Kotlin (Android)
• REST APIs
• Git
• Jetpack Compose
• Coroutines / RxJava

Project details

• Start: flexible
• Remote: remote
• Location: Warszawa, PL
• Rate: 125-150 EUR/h