Senior Backend Engineer, APIs & Event-Driven Systems

McKesson; Columbus (OH); On-site; USD 131,000 - 218,000; Full time

Job summary

McKesson is seeking a Senior Software Engineer in Columbus, OH to design, build, and operate production-grade APIs and event-driven services. You will mentor engineers, review designs, and guide architectural decisions while improving platform capabilities.

Strong backend focus with TypeScript, Node.js, Python, Kafka, and PostgreSQL experience is required. This role emphasizes engineering depth, collaboration, and owning complex systems end-to-end.

Qualifications

• 7+ years of professional software development experience.
• Experience designing, building, and operating production APIs.
• Experience backend services using TypeScript/Node.js and Python.
• Experience with Kafka or similar event-streaming platforms.
• Experience designing and maintaining relational databases (PostgreSQL).
• Experience infrastructure as code (Terraform).
• Experience with modern CI/CD (GitHub Actions).
• Experience supporting production systems and incident resolution.
• Experience participating in code reviews and design discussions.

Responsibilities

• Design, build, and operate scalable production APIs and event-driven services.
• Mentor engineers, review designs, and influence architectural decisions.
• Establish API/event design standards across teams.
• Develop tools and 개선 platform capabilities; drive CI/CD improvements.
• Collaborate early in design to prevent architectural divergence.
• Support on-call rotations and resolve production issues.

Skills

API design

TypeScript

Node.js

Python

Kafka

PostgreSQL

Terraform

GitHub Actions

Kubernetes

Azure

Mentoring

Technical leadership

Education

Bachelor's degree in Computer Science, Software Engineering, or related technical field

Tools

Terraform

GitHub Actions

Kubernetes

Helm

Job description

McKesson is seeking a Senior Software Engineer in Columbus, OH to design, build, and operate production-grade APIs and event-driven services. You will mentor engineers, review designs, and guide architectural decisions while improving platform capabilities.

Strong backend focus with TypeScript, Node.js, Python, Kafka, and PostgreSQL experience is required. This role emphasizes engineering depth, collaboration, and owning complex systems end-to-end.