Leapfrog Power, Inc. is hiring a Backend Engineer to join our fast-moving Reach product team. You’ll be part of a small team focused on rapid iteration, AI-assisted development, and building new product surfaces from scratch. You’ll balance 0→1 experimentation with solid engineering practices, ensuring alignment with our core Kotlin platform and other engineering teams, all while contributing to our mission of combating climate change by enabling a reliable electric grid powered by clean energy.

What You'll Do

Contribute to backend development within our Kotlin-based microservices platform, ensuring high performance, clarity, and reliability.
Work closely with product and design to understand user needs, shape product direction, and validate ideas quickly through prototypes and experiments.
Build new features for the Reach product area using modern tools such as Supabase, PostgreSQL/Timescale, Vercel, GraphQL, and AI-assisted frameworks.
Work across the stack when helpful, including lightweight frontend work with React and GraphQL to accelerate product delivery.
Contribute to the design and improvement of APIs, data models, and service interactions, both in Kotlin services and in new serverless components.
Use AI-assisted development tools to debug faster and explore implementation ideas.
Partner with other product teams to ensure new features integrate smoothly with our event-driven architecture, Kafka streams, and domain services.
Partner with infrastructure engineers to enhance reliability, observability, and security across AWS, EKS, Terraform, and Datadog.
Communicate effectively in a remote-first, asynchronous environment, contributing to a supportive and positive engineering culture.
Dive into the complex and rewarding energy domain.

What We're Looking For

2-4 years of professional software engineering experience.
Experience with Kotlin or Java and modern backend development patterns.
Experience with event-driven or service-oriented backends.
Proficiency with PostgreSQL or other relational databases.
Comfortable working with modern developer platforms such as Supabase, Vercel, or similar.
Experience working in a remote or hybrid environment and demonstrating the ability to be productive, manage time effectively, work independently, and succeed in a fully remote setting.
Experience working in distributed teams and/or demonstrating the ability to virtually communicate and collaborate effectively across multiple time zones using remote communication tools.

Nice to Have

Experience with energy markets, grid operations, or Virtual Power Plants (VPPs).
Experience with Kafka or similar streaming systems.
Experience using or building AI-assisted developer tools.
Experience with Timescale.
Familiarity with cloud environments (AWS preferred) and containerized runtimes like Kubernetes/EKS.