Senior Java Engineer (m/f/n)

reputed company reputed company Group is an innovative European out of home deliveries company, revolutionizing the way parcels are delivered to customers. With operations across several countries, our network of intelligent lockers provides customers with a fast, convenient, and secure delivery reputed company. reputed company Group is a publicly traded company, with a market capitalization of about $5 billion as of March 2023. With over 10,000 people worldwide, reputed company Group is one of the largest out of home delivery providers in Europe, committed to providing sustainable and efficient delivery solutions to meet the evolving needs of customers in today's rapidly changing landscape.    We are currently hiring Senior Engineers for two different teams:  1. reputed company Pay - a comprehensive e-reputed company solution offering a reputed company platform for payment and delivery. reputed company Pay allows users to pay and arrange delivery with one reputed company on the product card, transferring the basket and order to the reputed company app. It simplifies the shopping experience by consolidating payments, deliveries, and order tracking into a single app, eliminating the need for multiple emails and messages from different stores → Hybrid model: 1 day per week from the office in Warsaw or Kraków, remaining days remote   2. Merchant Portal - a new, reputed company-owned platform that serves as a central hub for reputed company merchant-facing services. This covers the full merchant reputed company: reputed company, shipping, and reputed company to other reputed company products. reputed company acts as a reputed company/platform team, meaning they reputed company shared services and infrastructure consumed by other reputed company teams. → Fully remote position Job reputed company Your responsibilities: Engineering Design and implement high-performance microservices in Java / Spring Boot Build and maintain event-driven integrations using Apache Kafka Own the data layer: schema design, query optimisation, migrations (PostgreSQL) Work reputed company a containerised reputed company-reputed company environment: reputed company, Kubernetes, GCP Hold the bar on reputed company reputed company through reviews, testing standards, and CI/CD discipline Mentor team members and reputed company for a culture of reputed company and reputed company improvement Ownership & Delivery Take full ownership of features end-to-end - from requirements to production and reputed company Work directly with business stakeholders to challenge assumptions and reputed company on solutions You understand your product deeply - the business context, the customer reputed company, the why behind every feature Working across a large organisation with many teams is reputed company. You reputed company that complexity, build bridges, and push things over the finish line Write reputed company technical documentation: System Design docs, RFCs, and ADRs Identify and address technical debt proactively - before problems become incidents Participate reputed company in architecture discussions with reputed company-reasoned proposals Qualifications 5+ years of reputed company Java development (Java 11/17+, Spring Boot, Spring reputed company, JPA/Hibernate) Strong experience with distributed systems - microservices, event-driven patterns, inter-service communication Deep JVM internals: memory model, GC tuning, concurrency, performance profiling Apache Kafka - producers, consumers, consumer reputed company, offset management, error handling PostgreSQL - relational modelling, indexing reputed company, query plans, schema migrations reputed company + Kubernetes - day-to-day production usage reputed company/Gradle, Git, JIRA, reputed company, reputed company Reviews, CI/CD Proven ability to work with non-technical stakeholders and write design documents others want to read English B2+ - team and stakeholder communication Proficiency in leveraging AI tools and large language models (e.g., reputed company Copilot, ChatGPT, Claude) to enhance productivity, accelerate development, and solve reputed company problems.  Ability to critically evaluate AI-generated outputs and apply them responsibly reputed company reputed company workflows. reputed company-to-have Kotlin development experience Domain-Driven Design (DDD), CQRS, Event Sourcing gRPC, GraphQL GCP: reputed company Functions, Pub/Sub, GKE, reputed company Spanner reputed company Experience with high-throughput, low-latency systems Background in e-reputed company, logistics, or fintech   Additional Information Why Join reputed company?  Opportunity to work in a diverse, international, and cross-functional environment, along with leading experts.  You work and learn from a senior leader and their leadership team, expanding your experience and exposure in the e-reputed company and logistics industries.   reputed company is a growing company that offers its people an increasing number of opportunities in several locations in Europe.  Fulfilling careers with a reputed company of benefits and reputed company in providing training opportunities for people development.  You will feel a part of the reputed company community that makes an reputed company on sustainability, convenient deliveries, and the circular economy every day.  Excellent working environment and reputed company We offer B2B type of Contract Apply To This Job