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Offer summary
(Summary generated by AI based on the full job description)
The project is a large-scale VPN application used by millions of users. Core stack includes Kotlin, Java with Android SDK and modern architectures (MVVM, Clean Architecture). Required knowledge covers TCP/IP, UDP, DNS, HTTP/HTTPS and experience with networking and VPN-related functionality. Responsibilities include developing and maintaining the app, building new features, working on networking, performance and security, plus debugging and testing. Offered long-term cooperation, fully remote, private healthcare and Multisport card.
from: 26 October 2026
to: 25 November 2026
24 000 - 34 000 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:remote
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
Kotlin
Java
Optional technologies
C
C++
Wireshark
Our requirements
- 5+ years of commercial experience in Android development.
- Strong experience with Kotlin and Java.
- Good knowledge of Android SDK and modern Android architecture (MVVM, Clean Architecture).
- Good understanding of networking concepts (TCP/IP, UDP, DNS, HTTP/HTTPS).
- Experience with Android networking, connectivity, or VPN-related functionality.
- Understanding of Android security principles.
- Experience with debugging, performance optimization, and testing.
- Good English communication skills.
Optional
- Experience with VPN applications or protocols (WireGuard, OpenVPN, IPSec, etc.).
- Experience with NDK, C, or C++.
- Familiarity with network debugging tools (Wireshark, tcpdump).
- Experience working in international teams
Your responsibilities
- Develop and maintain Android applications using Kotlin and Java.
- Build new features and improve existing VPN functionality.
- Work on networking, connectivity, performance, and security.
- Troubleshoot technical issues and improve application stability.
- Collaborate with Android, backend, networking, and QA engineers.
- Contribute to technical decisions and code quality.
About the project
We are looking for a Senior Android Engineer to work on a large-scale VPN application used by millions of users worldwide. You will focus on Android development, networking, security, and building new features in an international engineering team.
What we offer
- Long-term cooperation on a large-scale international product.
- Fully remote work.
- Opportunity to work with experienced international engineers.
- Autonomy and influence on technical decisions.
- Private healthcare and Multisport card.
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- remote work opportunities
- flexible working time
BRAVER IT SPÓŁKA AKCYJNA
As Venture Building, we create profitable technology companies from scratch. We collaborate with partners who share similar aspirations and are open to leveraging the potential of their networks, cultivated over years. We regularly launch new projects founded on long-term, amicable relationships with our associates.
Senior Android Engineer
24k–34k zł / mth. (B2B)
I apply to:
BRAVER IT SPÓŁKA AKCYJNA
Warszawa, Masovian
Need more information?
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