Senior Java & Kotlin Developer (e-commerce)

  • Department icon
    Java
  • Experience icon
    Senior
  • Working mode icon
    Hybrid
  • Location icon
    Polska | Warszawa
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About the role

A project implemented in the Language Intelligence domain, leveraging AI and NLP technologies for large-scale text analysis and processing to support key digital platform functionalities, such as search, content quality, and process automation.

Our expectations

  • Proven track record as a Software Engineer delivering highly complex solutions - min. 5 years of experience
  • Strong knowledge of Java and prior experience with Kotlin
  • Foundational experience with and a strong interest in AI-based solutions, particularly LLM integration and agentic systems/frameworks
  • Ability to lead the design and implementation of complex system features and components
  • Strong ownership of delivered solutions, including code quality, stability, scalability, and observability (monitoring, logging)
  • Experience in making architectural decisions and evaluating technical trade-offs
  • Ability to identify and manage technical risks, dependencies, and technical debt
  • Evaluating technical decisions through the lens of user impact, rather than solely fulfilling specifications
  • Strong collaboration skills when working with Engineers, Product Managers, and UX/UI Designers
  • High level of autonomy and accountability typical for contract roles
  • English language skills: min. B2 level

Nice to have

  • Hands-on experience with cloud environments (GCP preferred) and Kubernetes
  • Experience working with large-scale, distributed systems
  • Experience in cross-team collaboration within complex organizational structures
  • Providing technical consulting and knowledge sharing within the project team
  • Advising on technical best practices and optimizing engineering standards across the project

Main responsibilities

  • Design, build, and maintain highly scalable, robust Kotlin-based features and distributed components, taking full ownership of code quality, observability, and technical debt management.
  • Drive the technical implementation of cutting-edge AI capabilities by integrating LLMs, agentic frameworks, and smart automation into the core platform to directly enhance the end-user experience.
  • Act as a true autonomous contributor within a team of specialists and collaborate closely with Product Managers, UX Designers, and cloud engineers on GCP/Kubernetes while evaluating trade-offs, managing technical risks, and mentoring the team.

What we offer

Unique atmosphere

Unique atmosphere

A good and friendly atmosphere in the company and the satisfaction of working with both departmental colleagues and direct superiors.

Team-building events

Team-building events

Large internal technology conferences, star parties and team outings.

Flexibility

Flexibility

Working hours are flexible and tailored to individual preferences. As is the mode of work delivery: remotely or in a hybrid model.

Development paths

Development paths

They are clear, straightforward and certainly not bumpy. Choose between a managerial or expert development path.

Certifications

Certifications

We facilitate the development of desired competencies, subsidize training and courses.

Security

Security

We have many years of experience in the market and implement national and international projects. We skillfully manage tasks and enable smooth allocation between projects.

Language lessons

Language lessons

For those who speak fluently and want to maintain this level or wish to develop their language skills, we enable free participation in language lessons. Are conducted in the modern and safe form of online meetings. Just learn IT!

Comfort at work

Comfort at work

Attractively decorated relaxation areas, available in the company's largest branches, to encourage relaxation during the day, and equipped kitchens with aromatic coffee.

Support for activity

Support for activity

We have soccer teams, we play championships, we have marathon runners and other active sports lovers on board. We support all passions.

Apply for the position

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