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Construction Manager (Freelance) – Utility-Scale BESS Project
Location: Lower Saxony, Germany (near the Dutch border)
Contract Type: Freelance / Self-Employed
Start Date: December 2026 (part-time), transitioning to full-time from January 2027 where possible
Contract Length: 15 Months
Project: Utility-Scale Battery Energy Storage System (300MW)
The Opportunity
We are seeking an experienced Construction Manager to support the delivery of a major utility-scale Battery Energy Storage System (BESS) project in Lower Saxony, close to the Dutch border.
The role will begin on a flexible, part-time basis in December to support early construction activities, planning, site mobilisation, and stakeholder coordination. From January onwards, the position is expected to become full-time, although candidates with availability of 3-4 days per week will also be considered.
This is an opportunity to join a high-profile energy infrastructure project and play a key role in its successful delivery from construction through to commissioning.
Key Responsibilities
- Oversee all on-site construction activities throughout the project lifecycle
- Coordinate subcontractors, suppliers, and key project stakeholders
- Monitor construction progress against schedule, budget, and quality objectives
- Ensure compliance with project HSE standards and German regulatory requirements
- Support site mobilisation and construction planning activities
- Manage interfaces between civil, electrical, HV, and BESS installation works
- Lead site coordination meetings and provide regular progress reporting
- Identify, manage, and mitigate construction risks and site-related issues
- Ensure works are delivered in accordance with project specifications and industry standards
- Support testing, commissioning, and project handover activities
Requirements
- Proven experience as a Construction Manager on utility-scale energy infrastructure projects
- Demonstrable experience delivering large-scale BESS projects
- Strong understanding of site construction management, contractor management, and project delivery
- Experience managing multidisciplinary construction packages, including civil and electrical scopes
- Knowledge of German construction practices and HSE requirements
- Fluent German and English language skills
- Dutch language skills would be advantageous but are not essential
- EU passport or valid German residency/work authorisation is mandatory
- Available to work on a freelance/self-employed basis in Germany
Contract Details
- Initial part-time engagement from December 2026
- Full-time commitment preferred from January 2027 onwards
- Candidates available for 3-4 days per week will also be considered
- 15-month contract duration
- Long-term opportunity on a flagship energy transition project
This position would suit an experienced Construction Manager with a proven track record on large-scale BESS developments who is looking for a flexible freelance opportunity on a major battery storage project in Lower Saxony.