C Software Engineer Search Platform jobs at Ebay in Germany

• Adding new functionality to the platform,

• Optimizing cost-to-serve and latency on a platform level or optimizing via consultation on the application level, and

• Improving self-serve and monitoring capabilities.

General platform optimizations are usually achieved by developing or using advanced data structures and algorithms, while application-level optimizations are mostly rooted in a deep understanding of designing information retrieval systems. The core components of Cassini are written in modern C++, and we use parallel and distributed computation to power query serving. If you have a background in those areas and would like to contribute to achieving our mission, please come join us!

• Lead and develop a team of skilled C++ developers of eBay's search platform
• Set and drive technical direction for the team, ensuring scalable, high-performance, and maintainable architecture.
• Partner multi-functionally with product, science, and front end teams to deliver intuitive, end-to-end shopping experiences.
• Champion engineering standard processes, including use of AI-assisted development tools, automated testing, and modern CI/CD workflows.
• Guide the development efforts of a team dedicated to excellence of the search platform.
• Cultivate a culture of collaboration, curiosity, and continuous improvement within the engineering team.

• Bachelor's or Master's Degree in Computer Science or a closely related field, accompanied by 5 years of proven experience, or equivalent experience in place of the degree
• Experience in leading or managing software engineering teams.
• Deep, demonstrable expertise using modern C++ standards (C++17/20 or later) for high-performance computing
• Expertise in building scalable, distributed systems
• Excellent communication and teamwork skills across diverse teams and interested parties.
• Experience in e-commerce or logistics is a plus.

• Adding new functionality to the platform,
• Optimizing cost-to-serve and latency on a platform level or optimizing via consultation on the application level, and
• Improving self-serve and monitoring capabilities.

General platform optimizations are usually achieved by developing or using advanced data structures and algorithms, while application-level optimizations are mostly rooted in a deep understanding of designing information retrieval systems. The core components of Cassini are written in modern C++, and we use parallel and distributed computation to power query serving. If you have a background in those areas and like to contribute to achieving our mission, please come join us!

• Understand, estimate, design, and develop sophisticated software applications in C++
• Deliver highly performing, low latency, robust code with high test coverage, continuous integration, and production monitoring
• Participate in code and design reviews
• Optimize development cycles through CI/CD enhancements and AI-driven tools
• Triage and debug production issues
• Share your knowledge with team members via documentation and mentoring

• Bachelor's or Master's Degree in Computer Science or a closely related field, accompanied by 5 years of proven experience, or equivalent experience in place of the degree
• Solid foundational knowledge and practical application experience in the field of Information Retrieval
• Deep, demonstrable expertise using modern C++ standards (C++17/20 or later) for high-performance computing
• Expertise in building scalable, distributed systems
• Strong intellectual curiosity and a tenacious drive to own and successfully solve ambiguous, difficult technical challenges
• Experience designing, instrumenting, and maintaining systems in a production environment (observability, alerting, monitoring, etc.)

• Design, deliver, and maintain significant features in data pipelines, ML processing, and / or service infrastructure

• Optimize software performance to achieve the required throughput and / or latency

• Work with your manager, peers, and Product Managers to scope projects and features

• Come up with a sound technical strategy, taking into consideration the project goals, timelines, and expected impact

• Take point on some cross-team efforts, taking ownership of a business problem and ensuring the different teams are in sync and working towards a coherent technical solution

• Take active part in knowledge sharing across the organization - both teaching and learning from others

• B.Sc. or M.Sc. in Computer Science or an equivalent professional experience

• 7+ years of software design and development experience, tackling non-trivial problems in backend services and / or data pipelines

• Full proficiency in Python; additional hands-on experience with Java is a plus!

• Solid foundation in Computer Science with strong proficiencies in Data Structures, Algorithms, Object-Oriented Programming, and Software Design

• Experience in designing and operating Big Data processing pipelines, such as: Hadoop, Spark, Hive

• Track record of impactful publications and/or patents in machine learning or related areas.

• Contributions to open-source ML tools or frameworks.

• Experience with modern large language models, graph-based ML, or knowledge graph construction.

• Strong presence in scientific communities through talks, panels, or organizing roles.

• Drive the search monetization technical vision by incorporating and developing software engineering processes and standards to enhance eBay’s buying experience.

• Collaborate with scientists and product managers to deploy complex yet scalable core algorithmic logic.

• Create robust data pipelines and real-time monitoring and optimization algorithms.

• 4+ years of software design and development experience, solid foundation in computer science with strong proficiencies in data structures, functional programming, algorithms, OOPs, and Software Design

• Experience in designing and operating big data processing pipelines, such as: Hadoop, Spark, Hive, ETL

• 3+ years of software development experience in building large scale Web Services and Backend Applications using Java, C++, Scala, and related technologies

• Background or interest in mathematics or machine learning

• Excellent verbal and written communication, collaboration, and influencing skills

• Bachelor's degree in computer science/engineering or equivalent professional experience, with 5+ years of experience,

• Masters degree in computer science/engineering or equivalent professional experience, with 3+ years of experience.

• Adding new functionality to the platform,
• Optimizing cost-to-serve and latency on a platform level or optimizing via consultation on the application level, and
• Improving self-serve and monitoring capabilities.

General platform optimizations are usually achieved by developing or using advanced data structures and algorithms, while application-level optimizations are mostly rooted in a deep understanding of designing information retrieval systems. The core components of Cassini are written in modern C++, and we use parallel and distributed computation to power query serving. If you have a background in those areas and like to contribute to achieving our mission, please come join us!

• Understand, estimate, design, and develop sophisticated software applications in C++
• Deliver highly performing, low latency, robust code with high test coverage, continuous integration, and production monitoring
• Participate in code and design reviews
• Optimize development cycles through CI/CD enhancements and AI-driven tools
• Triage and debug production issues
• Share your knowledge with team members via documentation and mentoring

• Bachelor's or Master's Degree in Computer Science or a closely related field, accompanied by 2 years of proven experience, or equivalent experience in place of the degree
• Solid foundational knowledge and practical application experience in the field of Information Retrieval
• Deep, demonstrable expertise using modern C++ standards (C++17/20 or later) for high-performance computing
• Expertise in building scalable, distributed systems
• Strong intellectual curiosity and a tenacious drive to own and successfully solve ambiguous, difficult technical challenges
• Experience designing, instrumenting, and maintaining systems in a production environment (observability, alerting, monitoring, etc.)

As an Android Engineer, you’ll work on the Shipping module within the eBay Android app — making it easier for sellers to ship items and for buyers to track their deliveries. You’ll collaborate with experienced engineers, designers, and product leaders, gaining hands-on experience with Kotlin, GraphQL, and AI-assisted development tools in a supportive and inclusive environment designed to accelerate your growth.

• Build and ship features for the Shipping module in the eBay Android app, impacting millions of customers globally.
• Collaborate with senior engineers, designers, and product managers to deliver seamless, user-focused mobile experiences.
• Integrate app components with GraphQL and RESTful services for reliability and performance.
• Use AI-powered development tools to enhance productivity and learn modern coding practices.
• Participate in code reviews, agile ceremonies, and technical discussions to contribute to team excellence.
• Strengthen your expertise in Android architecture, design patterns, and performance optimization.

• — ideally completed within the last 12 months.
• Strong understanding of Kotlin and object-oriented programming principles.
• Familiarity with Android SDK and commonly used Jetpack libraries.
• Passion for mobile development and eagerness to learn from experienced engineers.
• Strong communication, collaboration, and problem-solving skills.
• Bonus: previous Android app development experience through internships or personal projects, and familiarity with AI-assisted coding tools.

As an iOS Engineer, you’ll work on the Shipping module within the eBay iOS app — making it easier for sellers to ship items and for buyers to track their deliveries.

You’ll collaborate with experienced engineers, designers, and product leaders, gaining hands-on experience with Swift, GraphQL, and AI-assisted development tools in a supportive and inclusive environment designed to accelerate your growth.

• ​​​ Build and ship features for the Shipping module in the eBay iOS app, impacting millions of customers globally
• Collaborate with senior engineers, designers, and product managers to deliver seamless, user-focused mobile experiences.
• Integrate app components with GraphQL and RESTful services for reliability and performance.
• Use AI-powered development tools to enhance productivity and learn modern coding practices.
• Participate in code reviews, agile ceremonies, and technical discussions to contribute to team excellence.
• Strengthen your expertise in iOS architecture, design patterns, and performance optimization.

• — ideally completed within the last 12 months.
• Strong understanding of Swift and object-oriented programming principles.
• Familiarity with UIKit, SwiftUI, and mobile app development fundamentals.
• Passion for mobile development and eagerness to learn from experienced engineers.
• Strong communication, collaboration, and problem-solving skills.
• Bonus: previous iOS app development experience through internships or personal projects, and familiarity with AI-assisted coding tools.