Back-end Developer

Knowit is a leading Nordic IT consultancy firm, dedicated to helping our clients achieve their business goals through advanced technological solutions. With over 4,500 professionals across various business areas, we specialize in software development, IT consulting, and digital transformation, all aimed at creating sustainable futures. Knowit is listed on the Stockholm Stock Exchange and operates in 21 countries, providing cutting-edge solutions and exceptional client service. Our client, TOMRA, is a Norwegian global leader in cutting-edge collection and sorting technology, recognized worldwide for pioneering innovative solutions that accelerate the transition toward a circular economy. With millions of daily users and one of the world's largest networks of reverse vending machines, TOMRA combines advanced engineering with a strong sustainability mission, creating real impact across multiple continents. Within this environment, the Digital Software department is responsible for building and integrating applications that process message flows from around 80,000 machines worldwide, supporting consumers, retailers, service operations, and national deposit systems. Project Description: In this role, you will join their dynamic engineering team as a skilled Backend Engineer contributing to applications and integrations powered by real-time data flows from thousands of connected machines. You will work with modern technologies such as Kotlin, Java, Google Cloud Platform (GCP), Svelte, and more. Key Responsibilities: Design, develop, and deploy high-quality applications on Google Cloud Platform (GCP) Collaborate closely with cross-functional teams to define and implement new functionalities Optimize applications to ensure excellent performance, scalability, and reliability Write clean, maintainable, and efficient code Participate in code reviews, promoting software quality and knowledge sharing Stay current with emerging technologies and trends to support an innovative engineering environment Qualifications: Bachelor's degree or higher in a relevant field Minimum 3 years of experience as a software developer Strong proficiency in Java and/or Kotlin Experience in system development using agile methodologies Familiarity with GCP services such as Compute Engine, Cloud Storage, BigQuery, Pub/Sub, Firebase, or similar solutions is an advantage Knowledge of Kubernetes Experience working effectively in a team environment Soft Skills & Preferred Competencies: Strong attention to detail and a commitment to delivering high-quality work, especially important in the context of financial reporting Experience with or interest in improving test coverage, and an appreciation of the critical role of testing in building reliable solutions Excellent collaboration and communication skills to support effective teamwork Beneficial: experience with or interest in automation and AI-driven processes, increasingly relevant to reporting workflows Very good command of the English language, both written and spoken (C1) Recruitment Process: Initial Interview with TA Specialist (online interview) Technical Skills Verification (online interview) Interview with Hiring Manager & Team (Knowit Office in Warsaw) What We offer: Employment contract (7-13k) Hybrid work model based in Warsaw, with the option to work from the office or partially remotely depending on your preferences An organizational culture built on knowledge-sharing and constructive feedback Opportunities to develop your skills – language courses, technical trainings, soft-skills development, certification support, and access to conferences on preferential terms Attractive benefits package available on preferential terms, including: MultiSport card and MultiLife platform, LuxMed medical care for you and your family, and group insurance All necessary equipment to support effective collaboration