Principal Software Engineer

Summary

Join Lumen Energy as a Principal Engineer to lead the technical strategy and architecture of our platform as we scale our business. You will build and maintain tools for users to understand energy usage, costs, and emissions, mentor a team of engineers, and improve development practices. This role requires 6+ years of full-stack software development experience, including 2+ years at an early-stage startup, strong collaboration skills, and a passion for decarbonization. You'll work with a technology stack including Python, Flask, SQLAlchemy, PostgreSQL, Rust, TypeScript, React, GraphQL, and Google Cloud Platform. The position offers the opportunity to make a positive impact on the environment and work in a highly autonomous, empowered team environment.

Requirements

• 6+ years of professional full stack software development experience
• 2+ years experience at an early-stage startup
• Strong cross-functional collaboration skills, rooted in empathy, humility, and accountability
• Strong written and verbal communication skills with the ability to articulate technical concepts to both technical and non-technical audiences
• Strong product sense
• Passion for decarbonization

Responsibilities

• Lead technical strategy and architecture for the entire Lumen platform, balancing short-term iteration with long-term resilience and scale
• Create and maintain the tools that make it delightful for our external and internal users to understand the complicated factors affecting their energy usage, costs and carbon emissions
• Be a force multiplier, by mentoring and guiding a small group of high-performing engineers. Help the team make strategic engineering decisions and establish the practices that create just the right amount of technical debt
• Continuously improve and refine our development practices, including our testing paradigms, tooling choices, documentation practices
• Collaborate closely with other teams and Lumen’s leadership to align platform vision with business needs
• Foster a culture of ownership, technical excellence, and collaboration within the company