Sr. Software Developer (Infrastructure)

Responsibilities

• Design and operate Bandwidth's AI infrastructure layer, including LLM gateways, model routing, and cost controls.
• Build and maintain developer tooling and platform services to reduce friction and increase engineering velocity.
• Drive adoption of AI coding tools by building enablement systems, prompt libraries, and internal integrations.
• Connect AI capabilities to existing engineering workflows in tools like Jira, Confluence, Slack, and GitHub.
• Measure engineering outcomes such as build times, reversion rates, and shipping velocity.
• Stay ahead of emerging trends in agentic workflows to help automate engineering toil.

Requirements

• 5+ years of experience building and operating web services in production environments.
• Hands-on experience with cloud infrastructure, specifically AWS.
• Strong proficiency in Python, Go, TypeScript, or similar programming languages.
• Experience with platform services including CI/CD, secrets management, and developer portals.
• Familiarity with LLM APIs and the technical tradeoffs of model routing and token cost management.
• Proven track record of building tools or services that other engineers depend on daily.
• Bachelor's degree or equivalent professional experience.

Preferred Qualifications

• Experience building or operating an LLM proxy, AI gateway, or model routing layer.
• Previous experience on a Developer Experience (DevEx) or Software Platform team.
• Proficiency with Infrastructure as Code (Terraform, CDK, or CloudFormation).
• Experience building MCP servers or integrating AI tools with internal enterprise systems.
• Experience working in high-ambiguity or startup environments.

Benefits

• 100% company-paid Medical, Vision, and Dental coverage for employees and families.
• Four weeks of PTO for all new hires.
• PTO Embargo policy to ensure employees can fully disconnect during time off.
• "Mahalo moments" program for significant life events.
• 90-minute workout lunches and access to nutritional support.

About the Company

Bandwidth is a global software company that helps enterprises deliver exceptional experiences through voice, messaging, and emergency services. We provide an owned communications cloud that delivers advanced automation, AI integrations, and global reach to the Global 2000, hyperscalers, and SaaS builders.