Senior Java Engineer

We are looking for talented Senior Java Engineer to join our team .

Our California-based customer is an American global e-commerce leader, one of the most popular and successful websites on the Internet. It provides platform services by connecting millions of sellers and buyers in more than 190 markets around the world.

The Senior Java Engineer will be a part of the AI Core team to bring new experiences for sellers and buyers leveraging Machine Learning models and other Artificial Intelligence tools to maximize the fun and accuracy of shopping experience.

Main Responsibilities:

Design, build, and maintain efficient, reusable, and reliable code

Suggest technical and functional improvements to add value to the product

Conduct design and code reviews to deliver high quality product

Minimum Requirements:

At least 5 years of proficiency in Kotlin or Java

Deep experience with the Spring Framework

Reactive tools experience (Project Reactor)

Knowledge of different communication protocols such as REST, GraphQL, gRPC

Experience with distributed systems

Familiarity with tracing, metrics and monitoring best practices

Experience of creating frameworks and platform for other developers

Proficiency in Maven or similar tools

Familiarity with NoSQL databases

Very good spoken and written knowledge of English language (C1)

Nice to have:

Familiarity with GenAI, AI agents, machine learning, and natural language processing concepts is a plus

Experience with MCP, A2A, RAG is a big plus

Experience with event-driven architecture

Experience with Docker and Kubernetes

Python experience is nice to have

BSc or MSc in Computer Science, Engineering or relevant field

Professional growth:

Strong engineering culture

Challenging projects and mature teams

Personalized on-demand cross-company mentoring support enabling you to learn new things faster

Plenty of opportunities to share knowledge and get more experience such as opportunity to mentor others, speak at events, and contribute to pre-sales

Direct communication with the customer