Python Backend Developer

Salary: $147,000 - 170,000 per year Requirements: Degree or equivalent background in engineering, mathematics, computer science, data science, physics, or a related discipline Professional experience developing backend software with Python Strong understanding of software development lifecycle best practices Experience with API design tools and frameworks such as Swagger, OpenAPI, and FastAPI Experience with cloud computing and Kubernetes or similar orchestration tools Experience with containerization tools such as Docker Experience with relational databases such as PostgreSQL or MySQL and ORM libraries such as SQLAlchemy Experience with load testing, latency profiling, and backend performance optimization Experience with infrastructure-as-code tools such as Terraform Experience working with new and complex data sources Interest in applying emerging technologies, including large language models, in production environments Ability to collaborate effectively across engineering, data science, underwriting, product, and customer success teams Employment-based visa sponsorship is not available, including for OPT, CPT, H-1B, or similar statuses Corp-to-corp candidates will not be considered Responsibilities: Help shape API architecture for real-time decision-making with complex medical data Collaborate with data scientists, underwriters, customer success partners, and product managers to develop and deliver the product roadmap Improve backend performance and scalability for large volumes of structured and unstructured health data Adapt the product as the use of machine learning models and large language models evolves Build maintainable software, write unit and integration tests, and implement automated testing Participate in code reviews and help continually improve development practices Technologies: AI API Backend Cloud Docker FastAPI Kubernetes Machine Learning MySQL OpenAPI PostgreSQL Python Swagger Terraform More: We are CBTS, seeking a Senior/Staff Software Engineer for our New York City team. In this role, you will build scalable, secure, high-performance APIs and services supporting data-driven solutions and mission-critical systems that use AI, electronic health records, and other sensitive medical data to help people obtain essential life insurance coverage. You will join a small, high-impact team developing an advanced medical risk assessment solution, with the opportunity to shape a new product, deliver quickly, and make an immediate impact. This is a direct, full-time hybrid position based in the Grand Central area of New York, with three onsite days per week. Target salary is $147,000–$170,000, plus bonus and benefits. We provide equal employment opportunities in accordance with applicable federal, state, and local laws. last updated 41 week of 2026