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About ThunderSoft ThunderSoft is a leading provider of operating system technologies and smart device solutions. Since its founding, the company has continuously innovated in the OS space, expanding from smartphones into smart vehicles, AIoT and intelligent industries. Listed in 2015, ThunderSoft operates in over 40 cities worldwide and employs more than 13,000 professionals globally. About the role We are looking for an Junior Android Application Developer to join our team and contribute to the development, optimization and maintenance of Android system applications for mobile devices. Location: Warsaw, Poland Work model: Fully onsite - 5 days per week from the office Employment type: Employment contract (UoP) or B2B contract Salary range: Employment contract (UoP): PLN 8,500 -12,800 gross per month B2B contract: PLN 10,200 - 15,000 net + VAT per month Key Responsibilities Develop and maintain system applications, covering full cycle from requirements through code writing, self-testing and deployment Ensure the stability, smoothness and performance of system applications through lightweight design, decoupling and architecture optimization Participate in debugging, root cause analysis and issue resolution throughout the product lifecycle Collaborate with cross-functional teams to support software delivery and product improvements Requirements Solid experience in Android engineering development; mobile phone development background preferred Strong programming skills in Java and/or C++; Kotlin experience is a plus. Good understanding of Android application architecture, framework components, multithreading, and system-level development concepts Hands-on experience with Android performance optimization and debugging tools Prior experience with System-level applications (KeyguardSystemUI, Launcher, Settings) is a strong advantage Strong problem-solving skills and ability to work in a fast-paced development environment Languages: fluent English; Chinese language skills are a strong plus Nice-to-have skills Experience with Android platform customization or system-level development Familiarity with mobile chipset platforms and embedded systems What we offer Work on modern mobile products in an international environment Collaborative engineering culture with room for technical growth Private medical care at Luxmed and Multisport card
Here's where they are and how to stand out in your next interview.
24.795Jobs
9.577IN
74%EN
That number includes positions in India (9,577), Poland (3,429), the United States (1,753), Singapore (787), and Brazil (779). If you're looking to move or work remotely, check which countries match your goals — then filter WorkMundi by location to see what's actually hiring near you.
Most developer ads you'll see are written in English: 18,397 of the 24,795. That doesn't tell you whether the job itself requires you to speak English or work in English daily, so read each posting carefully. Don't assume the language of the ad matches the language of the team.
The employers posting the most developer roles are Link Group (369 jobs), Upvanta (257), jobgether (226), and OfferZen (212). If you're applying to any of these, research their hiring patterns. They move fast and post often, which means they're either scaling hard or replacing people who didn't fit.
In your interview, expect this: 'Walk me through the last time you had to debug something that took you more than an hour. What was it, what did you try first, and what would you do differently?' Hiring managers ask this to see if you think systematically or just try random fixes. Have a real example ready with specifics.