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Clemios works with OEMs, charging infrastructure providers, and backend teams building OCPP-based EV charging systems. Teams planning an OCPP 2.0.1 integration, upgrading from an existing deployment, or validating interoperability before production are in the right place.
This page is intended for technical and delivery discussions.
English is the working language for all engineering and delivery activities at Clemios.
Engineering Paths
Select the path that matches the engineering need.
OCPP Engineering and Integration
New OCPP 2.0.1 systems, migrations from 1.6, CS-to-CSMS integration, charger firmware, backend connectivity.
Talk to an OCPP engineer →Validation and Interoperability
OCPP interoperability testing, OCTT-aligned validation, backend compatibility, regression test suites.
Discuss validation →Partnerships and Business
Dedicated engineering teams, long-term collaboration, EoR arrangements, commercial discussions.
Contact business team →This selection routes the request to the right engineering team.
Describe Your Engineering Need
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Working Hours
Mon to Fri, 08:00 to 17:30 GMT+1
Sat, 08:00 to 12:00 GMT+1
Working Languages
English, German
What Happens Next
Each request is reviewed by a Clemios engineer, not a generic sales inbox. Responses typically arrive within one business day.
Engineering Locations
Clemios SARL
Bangangte, Cameroon
Headquarters and engineering centre
European Business Development
Germany
Strategic partnership development
Frequently Asked Questions
The questions below clarify how Clemios works and what Clemios supports.
eMobility software engineering (OCPP, EV charging), embedded firmware development (C/C++, 8 chip vendors), QA and test engineering, and dedicated engineering teams.
Headquartered in Bangangte, Cameroon. Strategic business development based in Germany. Engineering delivery aligned with German and EU standards.
Dedicated engineering teams, Employer of Record (EoR), and project-based engagements. Each model includes Germany-first communication and reporting.
Clemios signs NDAs before any technical discussion. All client names and project details are protected. The Clemios website presents only sanitised case studies.
C, C++, Python. OCPP 2.0.1, Modbus, CAN Bus, MQTT. Ceedling, GoogleTest, pytest for testing. The full tooling stack is on the Proof of Know-How page.
Timelines depend on scope and team availability. Initial consultation and scoping typically take one to two weeks.
OCPP 2.0.1 is actively implemented. OCPP 2.1 is in development. Clemios supports OCPP-J (JSON over WebSocket).
No. FlexCharge.OCPP is an internal engineering asset that Clemios teams use to accelerate OCPP delivery. It is not a product, SaaS, or licensable stack.
The Clemios Academy trains Clemios engineers. External training services are not currently offered. Knowledge transfer workshops are included as part of project engagements.
All IP created during an engagement belongs to the client. Engineers sign NDAs and IP assignment agreements as part of their employment contracts.
Off-the-shelf stacks cover common scenarios. When a charging system has custom hardware, specific backend integrations, or field conditions that differ from the vendor defaults, those stacks need adaptation. Clemios handles the integration, validation, and edge cases that stack vendors leave to the buyer.
Clemios does not certify. Certification is granted by the Open Charge Alliance (OCA) through their OCTT testing process. Clemios actively tests with OCTT and builds systems that align with OCA requirements, but the certification decision rests with OCA.
The Clemios website is hosted on EU-based infrastructure (Hostinger, Lithuania). Client project data residency is defined per engagement contract. Clemios follows GDPR requirements for all data handling involving EU clients.
Clemios operates Monday to Friday, 08:00 to 17:30 GMT+1, with Saturday availability from 08:00 to 12:00. GMT+1 matches Central European Time during winter and overlaps fully with CET/CEST business hours. Communication and reporting follow German management standards.
Engineering teams are based in Bangangte, Cameroon. Strategic business development and client management operate from Germany. All project work follows German and EU engineering standards, with structured documentation, full traceability, and systematic testing. IP ownership transfers to the client per contract.