Senior C++ Engineer at Tracify GmbH

At Tracify GmbH, we redefine the landscape of analytics and tracking solutions. With innovation at our core, we empower businesses to leverage data, uncover insights, and unlock unparalleled growth. If you thrive in a dynamic, fast-paced environment and enjoy tackling complex engineering challenges while shaping the future of tracking solutions, this role is for you.

As our Senior C++ Engineer, you will take ownership of critical backend systems, pushing the boundaries of performance, scalability, and functionality. You will work on high-performance data pipelines, advanced bot frameworks, and ML-based tools, collaborating with cross-functional teams to deliver features that drive real business value.

• Extend and optimize our core data pipelines (AnalyticsCore) with advanced functionality and improved performance.
• Implement machine learning-based attribution models and custom user matching methods (e.g., clustering, graph-based approaches).
• Integrate new identifiers (e.g., device/browser fingerprinting) and additional data sources for comprehensive tracking.
• Build and maintain unit tests for robust, high-quality code coverage, including edge-case scenarios.
• Identify and resolve architectural bottlenecks, performance issues, and security vulnerabilities.
• Run performance evaluations using tools like Google Orbit to monitor and optimize system efficiency.
• Collaborate with backend, product, and data science teams to enable advanced functionality and data integrations.
• Develop inspection tools and documentation to support customer success and technical troubleshooting.
• Enhance and expand our bot framework (TracyBots) with advanced algorithms (e.g., dynamic bidding, predictive performance models).
• Develop new and advanced bots leveraging machine learning (e.g., reinforcement learning-based bots).
• Support the transition from legacy systems to the new AnalyticsCore infrastructure.

• Professional experience: 2+ years in modern C++ development (C++17/C++20) with a focus on performance and multithreading.
• Technical skills: Solid understanding of Python, data processing, and machine learning basics.
• Tooling and libraries: Hands-on experience with Boost, Clickhouse C++ client, SQLPP11, Redis++, nlohmann::json, or similar.
• Data expertise: Experience integrating SQL/NoSQL databases and working with APIs for large-scale data processing.
• Testing and CI/CD: Strong unit-testing skills and experience with CI/CD pipelines (e.g., GitHub Actions, Docker).
• Problem-solving: Ability to optimize existing systems, identify architectural improvements, and debug complex issues.
• Collaboration: Comfortable working self-directed while collaborating with cross-functional teams.
• Nice to have: Experience with reinforcement learning, graph-based methods, or computer vision projects.

• Few meetings, lots of focus time: Work on your tasks in a concentrated and in-depth manner.
• Dynamic environment: With us, you can expect a dynamic and flexible working environment in which you can really make a difference.
• Flexible working hours
• Work from wherever you want
• Free choice of work equipment + private use
• Regular team events and working holidays
• 50€ voucher (Amazon) for social campaigns (blood donation, food bank, etc.)