Senior Data & Backend Engineer

About the role

Champsoft is seeking a highly experienced Senior Data & Backend Engineer to join its Healthcare Analytics Platform team. This hybrid role combines data engineering, database development and Python backend/API development to build reliable healthcare data pipelines and secure APIs.

Key responsibilities

• Design, build and maintain batch and data‑processing pipelines for medical and pharmacy claims, eligibility, invoices and reference pricing.
• Develop and optimise complex SQL queries, stored procedures and analytics models on Snowflake, PostgreSQL and Microsoft SQL Server.
• Implement data validation, reconciliation processes and exception‑handling workflows across source, staging and warehouse layers.
• Design and deliver production‑grade REST APIs using Python frameworks such as FastAPI or Flask, supporting savings calculations, member profiles and healthcare metrics.
• Ensure API security with SSO, RBAC and PHI audit logging, and create unit, integration and data‑quality tests.

Required profile

• 5+ years of professional software, backend or data engineering experience.
• Strong hands‑on Python development and production experience with FastAPI or Flask.
• Excellent knowledge of advanced SQL, including window functions, stored procedures and query optimisation.
• Practical experience with Snowflake, PostgreSQL and relational database design.
• Experience building ETL/ELT pipelines, data validation and reconciliation frameworks.

Required skills

• Python
• Advanced SQL
• Snowflake
• PostgreSQL
• REST APIs (FastAPI / Flask)
• ETL / ELT
• Data modelling
• Data validation and reconciliation
• Git
• Microsoft SQL Server / T‑SQL
• Airflow / SSIS
• AWS S3
• Docker
• ECS / Kubernetes
• Okta / SSO / RBAC