OT Systems and Reporting Expert (Power BI, Python) - energy asset management

Greenvolt; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Private medical care

Life insurance

Sports card

Laptop

Company phone

Flexible working hours

Green Friday - shorter day

Birthday day off

Benefits cafeteria – Worksmile

Job summary

Greenvolt in Warsaw is seeking a skilled OT/IT data engineer to design and maintain automated Power BI dashboards using data from solar and wind farms, and to ensure reliable data transmission from assets to central platforms.

You will configure data concentrators and industrial protocols, develop Python scripts for data acquisition, and collaborate with international teams and suppliers. Occasional site travel is required, with a flexible, growth‑oriented work environment.

Qualifications

• Experience with OT systems, telemetry, or energy asset monitoring.
• Strong Power BI knowledge (DAX, Power Query).
• Practical Python for data acquisition and automation.
• Understanding industrial protocols and data transmission.
• Ability to troubleshoot and verify data quality.
• English proficiency for international collaboration.

Responsibilities

• Design, develop, and maintain automated Power BI reports and dashboards using data from solar and wind farms.
• Integrate OT and IT systems and ensure reliable data transmission from renewable energy assets to central platforms.
• Configure data concentrators, network devices, and industrial communication protocols used at renewable energy sites.
• Coordinate and supervise the installation of telecommunications and data acquisition infrastructure, working with contractors and technology providers.
• Develop Python scripts and custom solutions for data acquisition, processing, and validation.
• Monitor telemetry data quality, identify anomalies, and elevate technical or operational issues.
• Cooperate with IT, international technical teams, data analysts, contractors, software providers, and equipment suppliers.

Skills

Power BI

DAX

Power Query

Python

OT systems

Industrial automation

Data integration

Data quality

Troubleshooting

English

Tools

Modbus TCP/RTU

IEC 104

DLMS/COSEM

OPC UA

Git

Job description

• Design, develop, and maintain automated Power BI reports and dashboards using data from solar and wind farms.
• Integrate OT and IT systems and ensure reliable data transmission from renewable energy assets to central platforms.
• Configure data concentrators, network devices, and industrial communication protocols used at renewable energy sites.
• Coordinate and supervise the installation of telecommunications and data acquisition infrastructure, working with contractors and technology providers.
• Configure new installations and energy meters in the GEOS and Numeron systems.
• Develop Python scripts and custom solutions for data acquisition, processing, and validation.
• Monitor telemetry data quality, identify anomalies, and elevate technical or operational issues.
• Perform remote troubleshooting of network communication and OT system issues.
• Cooperate with IT, international technical teams, data analysts, contractors, software providers, and equipment suppliers.
• Provide technical and analytical support to other teams regarding the performance of renewable energy installations and monitoring systems.

• Experience working with OT systems, telemetry, industrial automation, or energy asset monitoring systems.
• Strong knowledge of Power BI, including DAX and Power Query.
• Practical Python skills, particularly in data acquisition, processing, or automation.
• Understanding of network communication and OT/IT system integration.
• Knowledge of at least one industrial communication protocol: Modbus TCP/RTU, IEC 104, DLMS/COSEM, or OPC UA.
• Ability to troubleshoot technical issues and verify the quality and accuracy of data.
• Ability to read technical documentation and configure telecommunications or data acquisition equipment.
• Familiarity with Git version control.
• Good command of English, enabling effective cooperation with international teams and suppliers.
• Independence, attention to detail, accountability, and strong stakeholder management skills.
• Willingness to occasionally travel to solar and wind farm sites.

• Stable employment in a company belonging to an international group in the renewable energy sector (RES), implementing projects in the field of photovoltaics, wind energy and energy storage.
• Opportunity for professional development in an international environment and knowledge exchange with experts from different countries.
• Flexible working hours and a work model conducive to work-life balance.
• A day off on your birthday and an additional shorter working day per month – Green Friday.
• A comprehensive benefits package including private medical care, life insurance and a sports card.
• Essential work tools – a laptop and a company phone.
• The opportunity to participate in team-building events and internal initiatives that foster a culture of cooperation and engagement.
• Benefits cafeteria – Worksmile