Proven track record of leading development teams, including people management, project execution, and predictable delivery.
Min. 5 years of experience as Java Developer
Knowledge and experience with Java Ecosystem - Java, Kotlin, Groovy, Spring Framework, and other languages - Python, Go
Experience with Apache Spark, Apache Hadoop , Apache Mesos and TensorFlow
Knowledge of engineering practices & methodologies: TDD, DDD, CI/CD, Pair Programming
Strong sense of ownership: full accountability for outcomes, quality, and system reliability.
Strong hands-on engineering background with the ability to co-drive technical decisions, conduct code reviews, and design system architecture.
Commitment to engineering excellence (clean code, testing, code reviews, CI/CD, and production readiness).
Participation in product discovery as a key technical partner.
Ability to translate business goals into a clear scope of work, priorities, and actionable roadmaps.
Experience working in a cross-functional environment (Product, UX, Business).
Proven track record in mobile app development
Documented experience in AI-driven projects and OKR frameworks
Experience in e-commerce, marketplaces, or consumer-facing platforms
Advanced communication skillis both in Polish and English (at least B2 level).
Open to hybrid work from the client's Warsaw office.

Main responsibilities

Lead a cross-functional development team, drive architectural decisions, conduct code reviews, and maintain engineering excellence across mobile, e-commerce, or consumer-facing platforms.
Partner with Product, UX, and Business stakeholders during product discovery to translate strategic business goals and OKRs into actionable technical roadmaps and AI-driven solutions.
Take full accountability for end-to-end project delivery, quality, and system reliability while effectively managing team members and working in a hybrid setup from the client's Warsaw office.

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

Team-building events

Large internal technology conferences, star parties and team outings.

Flexibility

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

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

Certifications

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

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.

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

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

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

Lead Java Developer (e-commerce)

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