Xebia
Technology
MiddleJavaDeveloper
Neural analysis suggests this role is
optimal for Mid candidates.
“Middle Java Developer at Xebia. Develop backend systems. Maintain backend systems”
Industry & Context.
Analytical thinking; Problem-solving
Occasional Warsaw office visits, On-call support
What They're Looking For.
Must Have
3+ years Java backend development, Kotlin knowledge, Spring Boot knowledge, Microservices architecture experience, NoSQL databases experience, MongoDB experience, Backend systems experience, APIs experience, System design understanding, Scalable architecture principles understanding, High-performance systems experience, High-scale systems experience, Analytical thinking, Problem-solving skills, Effective collaboration skills, English B2, Polish C1, AI-powered assistants experience, Work permit EU
Nice to Have
GenAI application experience, Agent-based workflows familiarity, Automation patterns familiarity, AI-augmented development familiarity
What You'll Do.
Develop backend systems
Maintain backend systems
Build low-latency services
Build high-performance services
Process large volumes data
Develop scalable microservices
Work on event processing
Work on targeting mechanisms
Contribute to architecture design
Contribute to scalability improvements
Collaborate with stakeholders
Support engineering best practices
Maintain code quality standards
Participate in technical support
Handle production incidents
How You'll Work.
Team & Collaboration
Stakeholders; Engineering teams
Communication Scope
English B2; Polish C1
Full Job Description
Xebia is a global AI-first, digital transformation, and engineering partner. With over 25 years of experience and a team of 5,000 professionals across 16 countries, we help organizations design and build scalable products, platforms, and data-driven solutions. We specialize in Artificial Intelligence, Data and Cloud, Intelligent Automation, and Digital Products, combining deep technical expertise with a strong focus on engineering excellence and a people-first culture. In the CEE region, we’re a team of nearly 1,000 experts delivering modern applications, data platforms, and AI solutions for clients such as McLaren, Aviva, Deloitte, Spotify, Disney, ING, UPS, Tesco, Truecaller, AllSaints, Volotea, Schmitz Cargobull, Allegro, InPost, and many, many more. We work with leading technologies including AWS, Azure, GCP, Databricks, and Snowflake, and combine strong engineering culture with a consulting mindset and a continuous focus on growth and knowledge sharing. You will be: developing and maintaining backend systems for advertising and e-commerce platforms, building low-latency, high-performance services processing large volumes of data, developing scalable microservices and APIs using Kotlin and Spring Boot, working on real-time event processing and advertising targeting mechanisms, contributing to architecture design and system scalability improvements, collaborating with stakeholders and supporting engineering best practices, including code reviews and code quality standards, participating in technical readiness/on-call support for production incidents a few days per month. Your profile: 3+ years of professional experience in Java backend development, very good knowledge of Kotlin and Spring Boot, openness to occasional visits to the Warsaw office (1–2 days per quarter), hands-on experience with microservices architecture, practical experience working with NoSQL databases, especially MongoDB, experience building and maintaining backend systems and APIs, understandin
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