Senior Full Stack Engineer

Salary range: B2B - 40-45 E/h VAT Ciklum is looking for a Senior Full Stack Engineer 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, become a part of a cross-functional development team engineering experiences of tomorrow. Client reimagines energy to bring net-zero within everyone's reach. Client Platform enables energy utilities to unlock the full value of a radically changing energy system and propel us to a future where renewable energy is sustainable, affordable and accessible for all. From automating and simplifying core operations including billing to create a lower-cost, higher-engagement experience, to optimising energy usage across smart devices in the home, we turn tough challenges into win-win-win outcomes for customers, suppliers and the energy system. Responsibilities: Design and implement complex web applications using the established approaches and best practices Improve existing engineering and quality standards in a team and help other team members adopt them Create CI/CD pipeline by template and/or assist DevOps team in creating more complex pipelines Participate in the hiring process and technical interview activities Coach/supervise middle/junior engineers by demand of the project Requirements: We know that sometimes, you can't tick every box. We would still love to hear from you if you think you're a good fit Software Design: Proficient in different API architectural styles (monolith, microservices, serverless) Experience in designing solutions using the proper patterns and development standards Software Development: Solid background in Node.js and building high-performance applications Use of advanced features in Node.js Use of complex queries and aggregations to databases Experience with Typescript and React Quality Assurance: Practical experience with testing approaches and tools Supporting code quality metrics Software Deployment: Hands-on experience with application deployment patterns and tools (Docker) Prior record in infrastructure configuration using AWS Kafka knowledge 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.