Senior Java Engineer

Avenga is an international engineering firm helping businesses operate with AI at the core. With 6,000+ experts worldwide, we combine engineering expertise with AI-native thinking to turn ambitious ideas into real-world impact across industries, technologies, and markets.

At the core of the role

We are looking for a Senior Java Engineer to join a project for a leading US streaming technology company transforming how people watch television.

You will contribute to a highly scalable, highly available, real-time advertising platform that supports a rapidly growing streaming business. Working with an experienced international engineering team, you will design and develop high-performance backend applications operating at scale.

This role is an excellent match for an engineer who has a strong command of Java, understands concurrency beyond the framework level, and enjoys solving complex performance and scalability challenges.

Core skills you’ll bring

• At least 5 years of professional experience in Java backend development
• Hands-on experience building large-scale, low-latency distributed systems
• Strong command of Java 11 or newer
• Solid practical knowledge of Java Concurrency and multithreading
• Experience with asynchronous programming in Java, including CompletableFuture
• Good understanding of algorithms, data structures and performance optimization
• Strong knowledge of object-oriented programming and software design principles
• Basic understanding of high-load system design and scalability techniques
• Basic practical knowledge of Kafka
• English at B2 level or higher, enabling effective communication in an international team

Nice-to-have:

• Experience with distributed caching
• Experience working with SQL and NoSQL databases
• Knowledge of AWS or other cloud platforms
• Experience with Big Data technologies
• Previous experience in adtech, streaming, media, fintech or another high-throughput domain