INTL Senior Backend Software Engineer

SmartX Advisory Solutions is seeking an experienced Senior Backend Software Engineer to take ownership of an existing Python-based application originally developed by a contractor. This engineer will be responsible for understanding, maintaining, and evolving the current system, and ultimately migrating it into SmartX’s core technology stack and deployment model.

This is a hands-on backend role focused on Python API development, cloud infrastructure, and system ownership. The ideal candidate is comfortable stepping into an existing codebase, making architectural decisions, and owning the application end-to-end in production.

Ideal PR: $21-25 USD/HR (can max out BR for an ALL-STAR! Max PR: $28 USD/HR), * Take full ownership of an existing Python-based backend application, including maintenance, enhancements, and long-term stability

• Study, understand, and refactor contractor-written code, ensuring it meets SmartX engineering standards

• Migrate the application into SmartX’s core platform and deployment ecosystem

• Design and build scalable, high-performance backend services and APIs using Python

• Work extensively with AWS-based infrastructure, including deployment and monitoring

• Collaborate with SmartX engineering teams working in C#, .NET Core, and cloud-native services

• Strong professional experience with Python for backend development and API creation

• Experience working with AWS in production environments

• Hands-on experience with Redis, cloud-native architectures, and distributed systems

• Solid understanding of data structures, algorithms, and mathematical problem-solving

• Experience maintaining and modernizing existing codebases, especially those built by third parties

• Ability to independently own projects and make architectural decisions

• Strong backend engineering mindset with a focus on performance, reliability, and scalability

• Experience with C#, .NET Core, or willingness to work closely with teams using that stack Preferred Qualifications:

• Terraform or infrastructure-as-code experience

• Background in data-heavy systems, analytics, or computation-focused applications

• Experience migrating applications between platforms or deployment environments

• Familiarity with CI/CD pipelines and DevOps best practices