ExpressVPN
Senior / Staff Rust Engineer - Backend(m/w/x)
Full-timeOn-siteSenior
Übach-Palenberg, Aachen
New Job?Nejo!
Your personal AI career agent
EXExpressVPN
Senior/Staff Mobile SDK Engineer(m/w/x)
Übach-Palenberg, Aachen
Full-timeOn-siteExperienced
Nejo AI Summary
Building and optimizing iOS/Android SDK wrappers for VPN integration. Strong mobile networking and system-level APIs understanding required. Open feedback culture, learning through experimentation.
Requirements
- Strong mobile SDK/library development experience
- Good Android (Kotlin, VpnService) expertise
- Good iOS (Swift, Network Extensive framework) expertise
- Strong mobile networking understanding
- Strong system-level APIs understanding
- Experience designing clean SDK APIs
- Experience designing stable SDK APIs
- Experience designing developer-friendly SDK APIs
- Solid software design principles understanding
- Solid software architectures understanding
- Experience with unit testing
- Experience with test-driven development (TDD)
- Strong problem-solving skills
- Strong debugging skills
- Experience with VPN technologies
- Experience working on B2B platforms
- Experience working on white-label platforms
- Knowledge of mobile security best practices
- University degree in a related field
Tasks
- Implement and maintain iOS SDK wrappers using Swift and Network Extension
- Implement and maintain Android SDK wrappers using Kotlin and VpnService
- Collaborate on consistent API design with core SDK engineers
- Build abstractions to simplify VPN integration for developers
- Optimize SDK performance for latency, stability, and battery
- Manage connection lifecycle, errors, and edge cases
- Contribute to SDK architecture, modularity, and extensibility
- Build and maintain demo integration applications
- Document components, traits, and implementation details
- Support enterprise clients with integration and platform issues
Work Experience
- 2 years
Education
- Bachelor's degree
Languages
- English – Business Fluent
Tools & Technologies
- Kotlin
- VpnService
- Swift
- Network Extensive framework
- VPN technologies
Benefits
Informal Culture
- Open and constructive feedback
- Culture of trust and transparency
Learning & Development
- Learning through experimentation
Other Benefits
- Safe space for learning
- Talented engineer support
Career Advancement
- Career growth facilitation
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of ExpressVPN and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.
Not a perfect match?
- Utimaco TS GmbH
Senior C++ Development Engineer(m/w/x)
Full-timeOn-siteSeniorAachen - Utimaco IS GmbH
Customer Success Engineer (Support Engineer)(m/w/x)
Full-timeOn-siteSeniorAachen, Düsseldorf, Neu-Isenburg - Utimaco
Software Developer(m/w/x)
Full-timeOn-siteExperiencedAachenfrom 90,000 / year - 1108 Amadeus Leisure IT GmbH
Lead Platform Architect(m/w/x)
Full-timeOn-siteSeniorHerzogenrath
EXExpressVPN
Senior/Staff Mobile SDK Engineer(m/w/x)
Übach-Palenberg, Aachen
Full-timeOn-siteExperienced
Nejo AI Summary
Building and optimizing iOS/Android SDK wrappers for VPN integration. Strong mobile networking and system-level APIs understanding required. Open feedback culture, learning through experimentation.
Requirements
- Strong mobile SDK/library development experience
- Good Android (Kotlin, VpnService) expertise
- Good iOS (Swift, Network Extensive framework) expertise
- Strong mobile networking understanding
- Strong system-level APIs understanding
- Experience designing clean SDK APIs
- Experience designing stable SDK APIs
- Experience designing developer-friendly SDK APIs
- Solid software design principles understanding
- Solid software architectures understanding
- Experience with unit testing
- Experience with test-driven development (TDD)
- Strong problem-solving skills
- Strong debugging skills
- Experience with VPN technologies
- Experience working on B2B platforms
- Experience working on white-label platforms
- Knowledge of mobile security best practices
- University degree in a related field
Tasks
- Implement and maintain iOS SDK wrappers using Swift and Network Extension
- Implement and maintain Android SDK wrappers using Kotlin and VpnService
- Collaborate on consistent API design with core SDK engineers
- Build abstractions to simplify VPN integration for developers
- Optimize SDK performance for latency, stability, and battery
- Manage connection lifecycle, errors, and edge cases
- Contribute to SDK architecture, modularity, and extensibility
- Build and maintain demo integration applications
- Document components, traits, and implementation details
- Support enterprise clients with integration and platform issues
Work Experience
- 2 years
Education
- Bachelor's degree
Languages
- English – Business Fluent
Tools & Technologies
- Kotlin
- VpnService
- Swift
- Network Extensive framework
- VPN technologies
Benefits
Informal Culture
- Open and constructive feedback
- Culture of trust and transparency
Learning & Development
- Learning through experimentation
Other Benefits
- Safe space for learning
- Talented engineer support
Career Advancement
- Career growth facilitation
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of ExpressVPN and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.
About the Company
ExpressVPN
Industry
IT
Description
The company is one of the world’s leading providers of online privacy and security services for consumers.
Not a perfect match?
- ExpressVPN
Senior / Staff Rust Engineer - Backend(m/w/x)
Full-timeOn-siteSeniorÜbach-Palenberg, Aachen - Utimaco TS GmbH
Senior C++ Development Engineer(m/w/x)
Full-timeOn-siteSeniorAachen - Utimaco IS GmbH
Customer Success Engineer (Support Engineer)(m/w/x)
Full-timeOn-siteSeniorAachen, Düsseldorf, Neu-Isenburg - Utimaco
Software Developer(m/w/x)
Full-timeOn-siteExperiencedAachenfrom 90,000 / year - 1108 Amadeus Leisure IT GmbH
Lead Platform Architect(m/w/x)
Full-timeOn-siteSeniorHerzogenrath