Senior Full Stack Engineer (.NET+React)
Ciklum is looking for a Senior Full Stack Engineer (.NET+React) to join our team full-time in Poland. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Senior Full Stack Engineer (.NET+React), become a part of our cient's product team Additive Manufacturing. Responsibilities: Design, build and/or configure end-to-end applications through close collaboration with other product team members It’s important that the applicant is productive in both the server side (.net/C#) and the front end (React) Engineer products to the highest standards of security and data privacy by implementing and following LEGO Group security and data privacy principles from ideation to production release and beyond Engineer products that implement business logic, modern design patterns and architectural principles Engineer products that follow highest coding standards e.g., documentation and efficiency Proficiency in writing modular code that is easy to test, deploy, and maintain Ensure product robustness and reliability by writing and executing unit and integration tests Improve operational efficiency by developing automation tools for daily tasks Build efficient and optimal solutions by challenging ideas/opinions Take part in suggesting and define future stories to support the growth of the applications Requirements: Skilled C# engineer that is change ready and open to assist on a wide variety of tasks depending on team priorities. This also involves working with non-C# technologies Several years’ experience with modern C# Solid experience with React Strong knowledge of core C# frameworks such as Entity Framework Good knowledge with monitoring physical devices through protocols such as OPC-UA and MQTT Good knowledge on working with message brokers such as Apache Pulsar Good knowledge on Test Driven Development A curious team player that continuously learn, naturally shares knowledge and challenges status quo Good communication and people skills Enjoy delivering sustainable solutions with quality over quantity always considering performance and security Playful, self driven Experience working in an agile development team Experience working with solutions that support business processes Desirable: Able to teach others Typescript Python API development and management Elastic Stack (Elasticsearch, Kibana) What`s in it for you? Strong community: Work alongside top professionals in a friendly, open-door environment Growth focus: Take on large-scale projects with a global impact and expand your expertise Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies Flexibility: Enjoy flexibility – full remote working possibilities Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions. Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn. Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum. #LI-RS1 Apply To This Job