Your mission
We’re looking for a mid-level backend developer to join the engineering team behind our Optimization Engine — a core product that does the smart management of batteries, renewables, and energy systems to cut costs and carbon. If writing clean, scalable APIs and wrangling real-world data sounds like your kind of thing, let’s talk.
What You’ll Be Doing
Designing and building reliable backend services and RESTful APIs using Python and FastAPI.
Collaborating on a tool for optimizing energy systems, batteries, and renewables — yes, the kind that help fight climate change.
Reviewing code, writing tests, and generally making the codebase a better place.
Helping maintain our CI/CD pipelines, Dockerized environments, and cloud infrastructure (AWS).
Tech Stack You’ll Touch
Languages & Frameworks: Python, FastAPI
Infrastructure: Docker, Git, AWS (Lambda, ECS, S3, CloudWatch, SQS)
Databases: PostgreSQL, InfluxDB
Practices: Agile, Continuous Delivery, Automate-All-The-Things
Your profile
You definitely should have:
2–4 years of backend development experience in Python.
Strong grasp of OOP and clean code practices.
Experience building REST APIs (FastAPI would be ideal).
Confidence working with SQL databases and Linux environments.
A healthy obsession with testing and code quality.
Bonus points if you’ve worked with:
Docker and containerized deployment.
AWS services.
CI/CD pipelines (GitHub/GitLab preferred).
Monitoring/logging tools (e.g., CloudWatch, Sentry).
Message brokers like SQS or RabbitMQ.
Time Series databases like InfluxDB or Timestream.
Energy systems, or data-heavy platforms.
About us
Wattstor is a next-generation energy company providing complete onsite renewable energy solutions. We believe sustainable, affordable energy is a business essential and we are committed to removing all obstacles to the clean energy transition. We supply customers with electricity in a new, faster, cheaper, and greener way. And in this way, we help our customers “Think Outside The Grid”.
With the best EMS on the market, cost-efficient solar and BESS systems, and the ability to design and deliver bespoke renewable projects, we can pave the way for our customers' path to net zero – removing all obstacles en route and supporting our customers at every stage of the process.
