Senior Software Engineer (AWS & Data)

In Keystone AI we work with top international IT companies to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking a Senior Software Engineer – AWS & Data to join a remote development on cloud-native development and data-driven applications. Project information: Type of project: IT services Office location: Poland Work mode: Remote Budget: 130 –150 PLN net /h - b2b Project length: Long-term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate’s availability) Project scope: Design, develop, and maintain cloud-native applications using AWS services (including AWS Glue and ECS) Build and optimize data processing solutions using AWS Glue and PySpark Develop and maintain RESTful APIs using FastAPI Design and implement user interfaces using React, ensuring seamless frontend-backend integration Work with containerized environments (ECS/Kubernetes) for application deployment and management Collaborate with product owners and cross-functional teams to deliver high-quality solutions Participate in code reviews and contribute to best development practices Troubleshoot and resolve issues related to performance, scalability, and security Continuously improve development processes by staying up to date with new technologies Competence demands: Proven experience in AWS cloud-native development, preferably within data-related projects Strong hands-on experience with AWS Glue and PySpark Experience with ECS and/or Kubernetes (development and basic administration) Solid frontend development experience with React Strong experience in building REST APIs using FastAPI Familiarity with DevOps tools and practices (e.g., GitHub Actions, Terraform) Experience with Terraform in infrastructure automation Knowledge of CI/CD pipeline design and optimization Exposure to scalable data architecture patterns Strong problem-solving skills and attention to detail Good communication skills and ability to work in a collaborative environment We offer: Remote working model Full-time job agreement based on b2b Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person) Life insurance