Mid-Level Software Engineer

Juggle Energy is building the next generation of control, monitoring, and automation tools for industrial energy systems. Our platform brings together software, hardware, and distributed energy resources - including battery storage, smart inverters, and low-bandwidth networks - into a single, cohesive cloud-native system.

We re looking for a Mid-Level Software Engineer who s keen to grow with us, get stuck into a variety of challenges, and help shape the future of our technology.

The Cloud team is the backbone of Juggle s web app. We build and maintain the services that power remote monitoring, device communication, time series storage, alerting, reporting, and customer-facing APIs. From distributed job queues and IoT messaging to InfluxDB pipelines and automated billing, our work supports real-time visibility and control across thousands of field devices.

You ll work closely with a small, fast-moving team across the full stack of our platform. Expect to roll up your sleeves and get involved in:

• Build and maintain scalable backend services in Python (Django) and AWS.
• Design APIs and data models that serve both internal tools and customer-facing applications.
• Work with IoT messaging protocols (MQTT, HTTP, or similar) to communicate with field devices.
• Working with/creating React UIs and supporting infrastructure to provide rich interfaces to users.
• Help ingest, store, and query large volumes of time series data from InfluxDB
• Collaborate with the Hardware and Edge teams to support device provisioning, remote diagnostics, and secure firmware rollouts
• Investigate and resolve production issues in a fast-moving, real-world environment.
• Participating in project design, architecture reviews, and site-specific problem-solving.
• Supporting users of the Juggle platform and collaborating with customer teams to deliver real-world, reliable solutions.

We don t expect you to know everything on day one, but experience in some of the following will be a big plus:

• Languages: JavaScript/Typescript (Node.js, React), Bash, Python, SQL
• Platforms: Linux (edge/embedded), GitHub (CI/CD), Docker
• Data Systems: MySQL, InfluxDB, REST APIs, WebSockets
• Architecture: Microservices, event-driven systems, infrastructure-as-code, observability/logging

• Scalable monitoring tools to help energy asset managers and operations teams oversee large solar and battery portfolios
• APIs and dashboards that enable portfolio-level insights across thousands of distributed energy sites
• Systems for automated fault detection, triage, and recovery across low-connectivity environments
• Internal tools that support site provisioning and device lifecycle management
• Improvements to data pipelines and observability layers to ensure real-time system visibility at scale

• Strong proficiency in Python and/or another server-side language.
• Comfortable working with SQL (especially MySQL) and designing relational schemas.
• Familiarity with cloud infrastructure (AWS preferred) and containerized services (Docker, ECS, etc).
• A solid understanding of REST APIs
• Familiarity with Django & React
• Hands-on attitude you like solving problems, building test setups, and digging into data
• Bonus: An interest in renewable energy, industrial control systems, or infrastructure technology
• Bonus: experience with NextJS

• Be part of a small, high-impact team building real-world energy solutions
• Opportunity to own your work and have real input in design and direction
• Access to cutting-edge tech and challenging, meaningful projects
• Learn and grow quickly by working directly with experienced engineers and founders
• Flexible work setup with room to grow your career as we grow the company