Fullstack Engineer (Java, Kotlin, Vue.js)

Responsibilities

We are looking for a full stack engineer who wants to develop and evolve systems powering product and assortment management within a large retail ecosystem. You will contribute to building scalable backend services and frontend applications, working in an event-driven environment. You will collaborate closely with engineers, product owners, and architects to deliver reliable and maintainable solutions across the full stack.

Your key responsibilities include:

• Develop and maintain backend services, APIs, and integrations using Java/Kotlin and Spring Boot.

• Build and maintain frontend applications using Vue.js.

• Translate business and product requirements into scalable and maintainable full stack solutions.

• Contribute to event-driven architectures and asynchronous processing using Kafka.

• Support integration of systems within AWS cloud and containerized environments.

• Work with PostgreSQL and design reliable data models.

• Collaborate with product, business, and engineering teams and contribute to code quality, testing, and system reliability.

Benefits

• Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more.

• Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones!

• Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development.

• Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions.

Qualifications

• Completed university degree in Computer Science or a comparable technical field.

• 3–5 years of experience in full stack development using Java/Kotlin and Vue.js.

• Good understanding of REST APIs, microservices, and frontend-backend integration.

• Hands-on experience or exposure to Kafka or similar messaging systems.

• Experience working with PostgreSQL or similar databases.

• Familiarity with AWS, CI/CD, and containerization.

• Strong communication skills in English and Polish, with readiness to work in a hybrid model in Katowice.

About OBI Smart Technologies

WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail.

OUR MISSION: "We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer."