Python Backend Developer Needed for Legacy System Migration Initiative

Keystone Digital

Contract · Remote · Flexible hours

About the role

Keystone Digital is launching an integration project to unify billing, CRM, and internal APIs. We need a Python Backend Developer who can design robust services that stitch these systems together, ensuring data consistency and low latency.

Key responsibilities

• Design and implement RESTful endpoints that mediate between billing, CRM, and internal services
• Write clean, testable Python code using Django and async patterns where appropriate
• Model complex relational data in PostgreSQL and optimize queries for performance
• Collaborate with frontend and DevOps teams to define API contracts and deployment pipelines
• Monitor integration health and troubleshoot issues in production

Must-have skills

• Strong experience with Python and Django framework
• Proficient in building REST APIs
• Solid knowledge of PostgreSQL schema design and query optimization
• Understanding of API authentication, rate limiting, and error handling

Nice to have

• Familiarity with billing platforms (e.g., Stripe, Chargebee)
• Experience integrating major CRMs such as Salesforce or HubSpot
• Exposure to Docker or Kubernetes for containerized deployments