Senior Backend Engineer (Java, Kotlin, Spring Boot, AWS)

Responsibilities We are looking for a backend engineer who wants to develop and evolve digital products and services powering OBI PRO, our B2B business for professional customers, craftsman, and businesses within the OBI retail ecosystem. You will contribute to building scalable backend services and integrations that support our B2B customer experience, sales processes, and digital services , working in an event-driven environment . You will collaborate closely with engineers, product owners, and architects to deliver reliable and maintainable solutions.

Your key responsibilities include: Develop and maintain backend services, APIs , and integrations using Kotlin, Java and Spring Boot . Translate business and B2B customer requirements into scalable and maintainable backend solutions . Contribute to event-driven architectures and asynchronous processing using Kafka .

Support the integration of backend systems within cloud-native and containerized environments . Design and maintain data models and persistence layers using PostgreSQL . Collaborate with product, business, and engineering teams to refine requirements and deliver features.

Contribute to code quality, testing, observability, and system reliability . Actively use AI-powered development tools to improve productivity, code quality, and efficiency throughout the software development lifecycle.

Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly)