Sr. Software Engineer (Numbers)

What you will do

Own your services end-to-end — from design and development to testing, operations, and production monitoring. You build it, you run it.
Create and maintain REST APIs (Java/Spring), customer-facing dashboards (React), and the cloud infrastructure (AWS) that powers the Numbers platform and number porting.
Integrate with third parties that support our porting processes
Help build our porting agent, which helps customers submit port requests and diagnose issues if they come up.
Lead solutions from start to finish, collaborating across teams to iteratively ship value aligned to customer and business needs.

What you need

What We Are Looking For

As a Senior Software Engineer (Number Porting team), you'll help make it as easy as possible for customers to port phone numbers in and out of Bandwidth. The team works with vendors and internal operations teams to streamline that process, and we're also building an AI agent that helps customers submit port requests and diagnose issues if they come up.

We're looking for someone who leads by example, takes deep ownership of what they build, moves fast without cutting corners, and is genuinely excited by the challenge of designing and scaling distributed systems that millions of people depend on.

You are the right candidate if you thrive with mission-focus, enjoy solving complex problems at scale, and are energized — working in an environment where AI is woven into how great engineers work every day. We don't treat AI as a future capability. It's how we build now, and we want teammates who feel the same way.

You are the right candidate if

You have 5+ years of experience building web services in a modern programming language (Java strongly preferred; C# or Go also welcome)
You have built and deployed applications for the cloud, preferably AWS
You have a solid understanding of network protocols, HTTP, and REST API design
You have experience designing and working with distributed systems
You have experience with relational and non-relational database systems
You have experience with scale, performance optimization, and building for fault tolerance
You have experience with test automation patterns and frameworks
You bring a continuous learning mindset – the tooling, the patterns, and the pace of change don't unsettle you, they excite you. You adapt quickly, absorb new concepts eagerly, and bring others along with you.
You are genuinely enthusiastic about AI – you follow the space, you experiment, and you have a point of view on where engineering is heading
You actively use AI coding assistants (GitHub Copilot, Cursor, Claude, or similar) in all parts of the software development lifecycle and review AI-generated code with the same rigor as human-written code
You hold a 4-year technical degree or equivalent experience

Sr. Software Engineer (Numbers)

What you will do

Sr. Software Engineer (Numbers)

What you will do

What you need

What We Are Looking For

You are the right candidate if

It would be really great if you also

The Whole Person Promise

About Bandwidth

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