Senior Software Engineer- Python/React

Sr. Software Engineer- Python and ReactHybrid role- onsite three days a week in the Greater Philadelphia Area$75-$85/hourLong Term Contract roleThe Planet Group has partnered with a Great Philadelphia area company to locate a senior engineer to build applications used by investment and research teams. This is a hands-on full stack role combining Python, React, and AWS with data-intensive work.The successful candidate will help turn research ideas into reliable tools: applications that process large datasets, run analyses, test investment models, and make results useful to the people making decisions.Responsibilities:Build and maintain Python services and React-based applications.Develop APIs, data workflows, and cloud applications that support research and analytics.Work with researchers, product partners, and other engineers to understand requirements and deliver practical solutions.Design for performance, security, reliability, and ease of support.Improve deployment pipelines and help support applications in production.Explore new technical approaches through prototypes and collaborative design work.Required Skills and ExperienceStrong hands-on Python development experience.Experience building user-facing applications with React; Dash experience is also useful.Solid AWS development experience, including cloud-hosted services and data processing.Experience with REST APIs, relational databases, and CI/CD practices.Comfort working with substantial datasets and solving problems across both the application and data layers.The ability to explain technical decisions and work closely with business and technical partners.