Technical Support Engineer- EV charging & Battery Storage

Wattsfuture Sweden ABJÖNKÖPING, Jönköpings länEURESpublished 09/18/2026

The role combines pre-sales technical support, solution design, customer training, commissioning, and after-sales support. You will work closely with customers, sales teams, R&D, production, installers, and other partners throughout the project lifecycle.

Key Responsibilities

  • Provide pre-sales technical consultation and solution design for EV charging, BESS, and PV projects.
  • Prepare technical solutions based on customer requirements and site conditions, including:

o System sizing and architecture

o Product selection and configuration

o EV charger, BESS, and PV integration

o Economic analysis to identify cost-effective system configurations

  • Support the sales team with technical clarification, project discussions, and the preparation of technical proposals.
  • Conduct customer training, product demonstrations, and technical presentations independently.
  • Perform or support on-site commissioning, testing, troubleshooting, and configuration of EV chargers and BESS systems.
  • Provide after-sales technical support, including fault analysis, troubleshooting, and coordination with customers, installers, and internal engineering teams.
  • Work closely with R&D and product teams to communicate field feedback and support technical issue resolution and product improvement.
  • Travel mainly within Sweden, with occasional travel to other Nordic and European markets as required for commissioning, troubleshooting, training, customer visits, and other technical support activities.

Qualifications

  • Bachelor’s or Master’s degree in Electrical Engineering, Energy Engineering, Power Engineering, Automation, or another relevant technical field.
  • Good understanding of industrial low-voltage (LV) electrical systems, particularly 400 V three-phase systems commonly used in commercial and industrial applications.
  • Familiarity with electrical components and equipment such as power cables, circuit breakers, protection devices, energy meters, current transformers (CTs), controllers, switches, relays, and electrical distribution equipment.
  • Ability to understand basic cable sizing, electrical connections, power distribution, protection concepts, and equipment interfaces.
  • Ability to read and interpret single-line diagrams, wiring diagrams, electrical schematics, technical documentation, and system diagrams.
  • Comfortable working hands-on with electrical and control equipment during testing, commissioning, and troubleshooting activities.
  • Able to independently perform basic system checks, equipment configuration, commissioning preparation, and fault diagnosis within the scope of the role.
  • Strong interest in renewable energy, energy storage, EV charging, smart energy management, and electrification technologies.
  • Good communication, analytical, and problem-solving skills.
  • Ability to work independently while collaborating effectively with sales teams, engineers, customers, installers, and other partners.
  • Proficiency in English is required.

Preferred Qualifications

The following qualifications are considered strong advantages:

  • Previous experience in EV charging infrastructure, BESS, power systems, renewable energy, PV, EMS, or related technologies.
  • Experience working with 400 V LV distribution systems, switchboards, electrical cabinets, meters, controllers, and related field equipment.
  • Experience with commissioning, troubleshooting, testing, or technical support of electrical or power electronic equipment.
  • Practical understanding of power cables, cable selection, CTs, energy meters, protection devices, and electrical measurement equipment.
  • Experience using common electrical measurement and diagnostic tools during commissioning and troubleshooting.
  • Knowledge of communication protocols and interfaces such as Modbus TCP/RTU, OCPP, Ethernet, RS485, or similar industrial communication systems.
  • Basic understanding of industrial networking, IP configuration, and communication between chargers, BESS, meters, controllers, and EMS systems is an advantage.
  • Swedish or European electrical qualification/certificate, or relevant practical experience in electrical installation and commissioning.

Personal Profile

We are looking for someone who is:

  • Technically curious and willing to continuously learn new products and technologies.
  • Genuinely interested in the rapidly developing EV charging, energy storage, and renewable energy industries.
  • Customer-oriented and comfortable communicating technical topics with different stakeholders.
  • Hands-on and willing to participate in field testing, troubleshooting, and commissioning.
  • Structured, responsible, and capable of managing multiple technical tasks or projects in parallel.
  • Flexible and comfortable working in a dynamic and fast-growing technical environment.

Contact person

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