Job Title: OCPP Developer (Remote / Freelance)

Company: Kaasai Services Limited

Location: Remote (Global)

Type: Freelance

Duration: SOW - 3 months

Start Date: Immediate

About Us

We are an energy-asset data orchestration platform connecting the data and controls between energy assets and orchestrating them on a single platform to deliver flexibility to the grid and significant savings to the operator. One of our goals is to deliver reliable, scalable, and interoperable V2X charging/discharging solutions using Open Charge Point Protocol (OCPP) standards.

Role Summary

We are looking for a highly skilled OCPP developer with hands-on experience in implementing and integrating OCPP 1.6J / 2.0.1 compliant systems. The ideal candidate understands both charger-side firmware and backend server architecture, with proven ability to deliver real-time communications using WebSockets, JSON, and SOAP.

Key Responsibilities

• Develop or integrate OCPP 1.6J / 2.0.1 communication modules
• Build secure, reliable backend interactions with charge points
• Debug and resolve OCPP protocol issues during charging sessions
• Implement features like remote start/stop, metering, and diagnostics

Required Skills

• Proven experience with OCPP (ideally 1.6J or higher)
• Strong programming in one or more of: Python, Java, Node.js, Go
• Deep understanding of WebSocket communication and message queuing
• Familiarity with EVSE hardware or charging station systems
• Experience with backend systems and REST APIs
• Understanding of cloud services, e.g. Azure IoT Hub

Nice-to-Have

• Worked with open-source OCPP stacks (e.g., SteVe, OpenOCPP, ocpp-python)
• Familiarity with other EV charging protocols (ISO 15118, OCPI)
• Knowledge of MQTT, AMQP, or Kafka
• Contribution to OCA or EV open-source initiatives

Tools / Stack We Use

• Backend: C#, .NET Core
• Cloud: Azure
• Repos: GitHub

What We Offer

• Remote work
• Competitive compensation: Negotiable daily rate / monthly / project-based
• Opportunity to work on cutting-edge energy data tech
• Fast-paced, collaborative environment
• Potential for long-term engagement

How to Apply

Please send your CV, GitHub/portfolio (if available), and a short note on your OCPP experience to [email protected]

Please include in your application:

·       What version(s) of OCPP have you worked with?

·       Have you implemented charge point or backend server?

·       Have you used any open-source OCPP tools?