Senior Software Engineer – Integration

About the role

PostGrid is looking for a senior full‑stack engineer to own and evolve the integration layer that lets customers connect our mailing platform with their existing tech stack. You will work on both backend and frontend components, ensuring seamless, high‑performance interactions for millions of API calls each month.

Key responsibilities

• Build and enhance integration services using TypeScript, Node.js, MongoDB, React, AWS, and Terraform.
• Design, develop, and maintain high‑volume REST APIs handling over one billion requests per month.
• Create and support integration layers between PostGrid’s core platform and third‑party CRM/ERP systems, including data pipelines and monitoring tools.
• Collaborate with partner engineering teams, review integration architectures, troubleshoot failures, and improve reliability.
• Lead technical decisions, conduct code reviews, and mentor junior engineers throughout the development lifecycle.

Required profile

• 5+ years of full‑stack software engineering experience, with a focus on integrations or platform engineering.
• Proven ability to design scalable, high‑load systems.
• Strong problem‑solving skills and ownership of end‑to‑end delivery.

Required skills

• TypeScript
• Node.js
• MongoDB
• React
• AWS
• Terraform
• REST API design and implementation