Principal Software Engineer EV Charging

Principal Software Engineer EV Charging

Company: Perfect Storm Software, LLC

Location: Hybrid / Bicester

Type: Permanent

Salary: Competitive, market-based

TUAL Technology is an innovative, VC‑backed start‑up based in Bicester, developing Power Up a high‑power EV charging solution designed for grid‑constrained sites. By integrating battery storage, smart energy management, and ultra‑fast DC charging, TUAL delivers seamless electrification where traditional grid capacity falls short. Working with enterprise customers across Europe, TUAL is transforming the productivity and profitability of electric commercial vehicle fleets through a portfolio of intelligent, software‑defined, cloud and IoT‑enabled charging solutions.

We’re looking for a hands‑on Lead Software Engineer to own the design and delivery of our IoT and cloud software platform. You’ll connect our ultra‑fast chargers, manage data and remote‑control functions, and ensure security and scalability across our systems. You’ll work directly with the VP Product and VP Power Electronics, shaping architecture, integrations and performance, turning ideas into real, working solutions.

• Build IoT and cloud software for charger connectivity and monitoring
• Create telemetry and data pipelines (PLC, CAN)
• Enable secure remote control and bi‑directional communication (MQTT/Web Sockets)
• Deliver OTA firmware updates and REST APIs (OCPP/OCPI)
• Develop secure, scalable cloud infrastructure (AWS IoT, Azure, etc.)
• Collaborate closely with hardware and IoT partners to integrate systems end‑to‑end

• 5+ years experience in IoT software, cloud integration or embedded systems
• Strong skills in PLC, CAN, Modbus or similar protocols
• Proficiency in API and cloud development (AWS/Azure, MQTT, Web Sockets)
• Knowledge of secure firmware updates and encryption (TLS, AES)
• Comfortable working autonomously in a fast‑moving start‑up environment
• Background in EV charging, energy storage or industrial automation is a plus

This is a chance to build the full IoT and cloud platform behind Power Up from architecture to deployment. You’ll shape a core technology in a growing, well‑funded start‑up tackling real‑world challenges in electrification.