Descrição:
BE PART OF THE EXITLAG CLAN
GPTW certified company Great Place to Work
Are you a fan of games, technology, and challenges that make a difference? ExitLag could be your next big mission.
We are the world s first AI-powered game optimization platform, ensuring maximum performance and connection stability for millions of players in over 190 countries.
Born in Brazil, we operate with a global culture, high performance, and a total focus on user experience. Here, gaming is serious business, and we always deliver in PRO mode.
Why work at ExitLag?
We are GPTW Great Place To Work
A high-performance team, strong culture, and people who truly believe in what they do.
Impact beyond gaming
Your work transforms the experience of millions of gamers around the world.
Growth + Real challenge
An environment that accelerates your technical and professional development with autonomy and delivery.
Global Mindset
We are Remote First and work on global projects. Where you are never limits how far you can go.
We are seeking an experienced Senior Backend Engineer to join our team working on the ExitLag QML Client, a high-performance desktop application that provides network optimization and routing services for gaming applications. This role requires deep expertise in modern C++, Qt framework, and system-level programming to deliver low-latency, real-time network solutions.
About The Role As a Senior Backend Engineer, you will be responsible for designing, implementing, and optimizing the core backend systems of our desktop client application. You ll work on performance-critical networking code, system-level integrations, and maintain the bridge between our C++ backend and QML frontend. This position offers the opportunity to work on challenging problems involving real-time network diagnostics, connection management, and system-level operations in a Windows environment.
Key Responsibilities
Design and implement backend features** for network optimization and proxy management functionality
Optimize performance-critical networking code** to ensure minimal latency for gaming applications
Maintain and extend the Qt/QML integration layer** that connects backend C++ code with the frontend QML interface
Debug and resolve system-level issues** related to network connections, process management, and Windows API interactions
Write and maintain comprehensive unit tests** using Boost.Test framework
Conduct code reviews** and provide technical leadership to junior developers
Collaborate closely with the frontend team** on QML integration, signal-slot architecture, and data model design
Implement network diagnostics features** including ping monitoring, RTT measurement, packet loss analysis, and connection diagnostics
Work on cryptographic operations** for secure authentication and data integrity
Maintain build system configurations** using CMake for cross-platform compilation (x64/ARM64)
Required Qualifications
Technical Skills
5+ years of professional C++ development experience** with strong proficiency in modern C++ (C++17/C++20)
Deep understanding of Qt Framework** (Qt 6.x preferred), including: - QObject model and signal-slot mechanism - QML integration and QQmlEngine - Qt s memory management and parent-child relationships - Qt Network module for asynchronous operations
Expert-level knowledge of network programming:
TCP/UDP socket programming
Connection pooling and management
Low-latency network optimization
Real-time data processing
Strong system programming skills
Windows API experience (process management, system calls)
Understanding of operating system internals
System-level debugging and troubleshooting
Proficiency with build systems:
CMake (advanced usage, conditional compilation, cross-compilation)
Understanding of dependency management
Performance optimization expertise
Profiling and performance analysis
Memory management and leak detection
Real-time system constraints
Understanding of latency-sensitive applications
Testing and quality assurance
Unit testing frameworks (Boost.Test or similar)
Integration testing
Debugging complex issues
Memory leak detection and analysis
Version control
Git proficiency with experience in collaborative development workflows
Technical Environment
Primary Language
C++20
Framework
Qt 6.8.3 with QML
Build System
CMake 3.16+
Platform
Windows (primary), with cross-platform considerations
Libraries
Boost, Qt modules (Core, Network, Qml, etc.)
Testing
Boost.Test
Version Control
Git (Bitbucket)
Development Tools
Qt Creator, MSVC 2022, debugging tools
BENEFITS AND ADVANTAGES:
Hiring as a legal entity (PJ)
100% remote and flexible environment
Solid career plan aligned with performance.
Allowance for home office, health, wellness, and food of R$1,300.00 on a Flash card
Partnership with TotalPass, Zenklub, and Exitlag free of charge, available to everyone in the Clan.
Paid time off and days off to ensure you are always at your best.
Profit sharing plan + company shares after 6 months of employment.
50% assistance for courses and specializations after 6 months of employment.
Bradesco health plan 100% paid by the company for the holder
Annual bonus of one salary for the entire company, proportional to your length of service.
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