Company profile

Wattstor Tech Stack

Onsite solar, battery storage and energy management systems for businesses

Services for Renewable Energy London 51–200 employees Founded 2013 Privately Held

Wattstor designs, funds and operates behind-the-meter energy systems, and its stack shows a real software layer underneath the hardware: Python and FastAPI services on AWS, time-series data in InfluxDB and Timestream, and field protocols like Modbus, OCPP and RS485. Accelerating hiring spans engineering, logistics and marketing, alongside work on an optimization engine and standardised BESS designs, which points to productising its storage offering.

Tech Stack 37 technologies

Core StackHubSpot WordPress Adobe Illustrator Adobe Photoshop Adobe Premiere Pro Python FastAPI Docker AWS AWS Lambda CloudWatch PostgreSQL InfluxDB Sentry RabbitMQ Jira JavaScript Cypress Playwright Selenium Postman AWS ECS AWS SQS Timestream ZeroMQ SQLite Modbus OCPP RS485 Appium+7 more

What Wattstor Is BuildingChallenges and projects from their job posts

◆Challenges

Optimizing battery usage to reduce energy costs
Resource conflicts between projects and service work
Inventory management and customs coordination inefficiencies
Measuring event ROI
Improving technical SEO

▲Active Projects

Energy optimization engine
Standardised BESS solutions development
Design and electrical engineering for BESS and EMS
Customer evidence framework
Events program

Hiring Activity

Accelerating4 roles · 3 in 30d

Department

Engineering

Logistics

Marketing

Seniority

Mid

Lead

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About Wattstor

Wattstor is a London-based, privately held company founded in 2013 with 51–200 employees. It designs, builds, finances, operates and optimises onsite renewable energy systems for customers, who buy the generated electricity below grid prices. Its focus areas include battery energy storage, energy management systems, EV charging hubs, microgrids and behind-the-meter installations. Commercial activity runs on HubSpot and WordPress, while engineering work is tracked in Jira.

HeadquartersLondon

Company Size51–200 employees

Founded2013

Frequently Asked Questions

What tech stack does Wattstor use?

Wattstor uses Python, FastAPI, Docker and AWS services (Lambda, ECS, SQS, CloudWatch, Timestream), plus PostgreSQL, InfluxDB, RabbitMQ and Sentry. Device integration relies on Modbus, OCPP and RS485, and testing uses Cypress, Playwright and Selenium.

What is Wattstor working on?

Wattstor's job posts point to an energy optimization engine, standardised battery energy storage (BESS) solutions, and design and electrical engineering for BESS and EMS projects. Marketing work includes an events program and a customer evidence framework.

Where is Wattstor headquartered?

Wattstor is headquartered in London, United Kingdom. It is a privately held company founded in 2013 with 51–200 employees.

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How this profile is built

Wattstor's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.