Senior Software Engineer (Java/Kotlin)

We’ve signed up for an ambitious journey. Join us! As Arrive, we guide customers and communities towards brighter futures and more livable cities. It isn’t a challenge just anyone could take on. Luckily, we have something to help us make it happen: our people and our values. We Arrive Curious, Focused and Together. Just as our entire brand is inspired by the North Star, the shining light leading travelers to their destinations since time began, our values guide us. They help us be at our best. For our customers. For the cities and communities we serve. For ourselves. As a global team, we are transforming urban mobility. Let’s grow better together. About the Team Join our Payments Engineering team and be at the forefront of innovation! We're seeking a passionate Senior Software Engineer to build and scale a world-class payment platform that impacts millions of users worldwide. This is your opportunity to grow your team, contribute to strategic goals, and make a lasting impact in a dynamic environment. What You’ll Do: Leadership & Collaboration: Mentor less-experienced team members, give timely feedback, and promote high standards to help grow the team’s capabilities. Lead Agile ceremonies, promote healthy teamwork habits, and facilitate collaboration with stakeholders. Set an example of technical and leadership practices for others to follow, aligning engineers toward shared goals. Relate your work directly to company goals, thinking strategically beyond immediate tasks. Architecture & Design: Design complete systems and workflows, balancing performance, simplicity, and organizational standards. Lead design sessions within your area of expertise, producing clear architecture diagrams. Identify cross-domain dependencies and anticipate potential problems, risks, and failure scenarios. Quality, Security, & Operations: Promote best practices in planning, delivery, and quality assurance to ensure consistent quality and help the team balance speed with sustainability. Define and improve testing strategies for your team, ensuring tests cover both functional and operational risks. Perform risk assessments, champion secure-by-design principles, and guide peers in applying security best practices. Define operational standards and performance metrics for your product area, ensuring effective monitoring, reporting, and root-cause analysis. Tech Stack: Java/Kotlin, Spring Boot, RESTful APIs, Kafka, PostgreSQL What We’re Looking For: Experience: 5-9 years of professional software development experience. Domain Knowledge: A deep understanding of the business, user needs, and the technical landscape. You can learn new business logic efficiently and mentor others on our systems and practices. Impact & Ownership: You take ownership of your projects, solve problems independently, and have a thorough understanding of the product. You actively participate in production, review others' contributions, and have informed opinions on strategic decisions. Strategic Mindset: You think beyond immediate tasks, using data and insights to weigh trade-offs and align decisions with long-term goals. Security Focus: You have a deep understanding of security, how it affects your domain, and experience with risk assessments and mitigations. Team Growth: A passion for growing your team and helping them contribute to their goals. Experience with DevOps practices: Continuous integration / continuous deployment (CI/CD), containerization (Docker, k8s). Bonus Points: Experience with billing or financial systems. *** While this position is located in Łódź, we are open to candidates based anywhere in Poland who are available to travel to the office on a bi-monthly basis. Join our team and make a significant impact on Arrive's global success. Apply now!