Software Development Engineer III - Platform

High Level is an AI powered, all-in-one white-label sales & marketing platform that empowers agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. We are proud to support a global and growing community of over 2 million businesses, comprised of agencies, consultants, and businesses of all sizes and industries. High Level empowers users with all the tools needed to capture, nurture, and close new leads into repeat customers.

As of mid 2025, High Level processes over 4 billion API hits and handles more than 2.5 billion message events every day. Our platform manages over 470 terabytes of data distributed across five databases, operates with a network of over 250 microservices, and supports over 1 million hostnames.

With over 1,500 team members across 15+ countries, we operate in a global, remote-first environment. We are building more than software; we are building a global community rooted in creativity, collaboration, and impact. We take pride in cultivating a culture where innovation thrives, ideas are celebrated, and people come first, no matter where they call home.

As of mid 2025, our platform powers over 1.5 billion messages, helps generate over 200 million leads, and facilitates over 20 million conversations for the more than 2 million businesses we serve each month. Behind those numbers are real people growing their companies, connecting with customers, and making their mark - and we get to help make that happen.

We are seeking an experienced SDE3 – Platform Developer engineer to help build and scale High Level’s internal developer platforms, tooling, and workflows. This role is a senior individual contributor position focused on improving developer productivity, build and release workflows, internal tooling, and platform usability.

You will work closely with Platform, Cloud Infrastructure, and Product Engineering teams to reduce friction and enable engineers to ship faster and safer. This role plays a key part in ensuring High Level’s engineering organization can scale efficiently while maintaining high quality and reliability.

• 5+ years of software engineering experience

• Strong hands-on experience with:
  Node.js, Type Script

• Experience building internal tools or developer-facing platforms

• Strong understanding of modern web application architecture

• Experience collaborating with backend, platform, and infrastructure teams

• Excellent problem-solving and communication skills

• Developer Platform & Tooling:

• Design and build internal developer tools and platforms using Node.js, Type Script, and Vue.js

• Develop user-friendly interfaces and APIs that enable self-service workflows for engineers

• Improve developer onboarding and day-to-day workflows through automation and tooling

• Partner with Internal Developer Platform (IDP) and Platform Engineering teams on shared capabilities

• CI/CD & Developer Workflows:

• Improve CI/CD developer experience by building tooling around build, test, and deployment workflows

• Create abstractions and interfaces that simplify interaction with CI/CD pipelines

• Help standardize development and release workflows across teams

• Identify bottlenecks in the developer workflow and drive improvements

• Frontend & UI Development:

• Build and maintain internal web applications and dashboards using Vue.js

• Focus on usability, performance, and consistency across Dev Ex tools

• Work closely with designers and platform engineers to deliver intuitive developer-facing experiences

• Backend Services & APIs:

• Build backend services and APIs using Node.js and Type Script to support Dev Ex tooling

• Integrate with platform services, CI/CD systems, and infrastructure APIs

• Ensure reliability, scalability, and…