BESS Tender & Technical Lead

Mint Selection | B Corp; Slough; Hybrid; GBP 110,000 - 140,000; Full time

Job summary

Mint Selection, London-based, is seeking a seasoned Technical Lead for a major UK battery energy storage project. You will own the technical workstream from requirements through to contract award, coordinating bidders and stakeholders across engineering, grid interfaces, and safety standards.

The role requires a degree in Electrical Engineering or related field and substantial BESS experience, with a focus on procurement, evaluation, and risk transfer into contracts.

Qualifications

• Degree-qualified in Electrical Engineering, Power Systems or Energy Engineering.
• Significant experience in utility-scale BESS projects.
• Experience leading or supporting a BESS tender from spec to award.
• Strong knowledge of lithium-ion battery tech, PCS/inverters, EMS/SCADA, MV/HV and grid interfaces.
• Experience preparing Employer’s Requirements and tender docs.
• Strong understanding of BESS performance metrics like capacity and degradation.
• Experience reviewing BESS supplier proposals and warranties.
• Strong commercial awareness translating technical risks into contractual protections.
• Excellent communication and stakeholder-management skills.

Responsibilities

• Act as principal technical point of contact throughout the BESS tender and procurement process.
• Develop and finalise the Employer’s Requirements and technical specifications for the BESS package.
• Manage technical clarifications and coordinate discussions with bidders and project stakeholders.
• Lead the technical evaluation of tender submissions, including compliance reviews and deviation assessments.
• Review battery technology, PCS/inverters, EMS/SCADA, MV/HV systems, grid connection interfaces and balance-of-plant requirements.
• Assess proposed system performance, including capacity, efficiency, availability, degradation and augmentation.
• Translate technical risks into contract terms, warranties, performance guarantees and testing requirements.
• Prepare technical evaluation reports and provide clear recommendations to senior project stakeholders.
• Support the handover of the awarded package into the delivery and construction phase.

Skills

Electrical Engineering

Power Systems

Energy Engineering

BESS

Tender Procurement

Lithium-ion Batteries

EMS/SCADA

Grid Infrastructure

Stakeholder Management

Technical Evaluation

Education

Bachelors in Electrical Engineering

Job description

Mint Selection, London-based, is seeking a seasoned Technical Lead for a major UK battery energy storage project. You will own the technical workstream from requirements through to contract award, coordinating bidders and stakeholders across engineering, grid interfaces, and safety standards.

The role requires a degree in Electrical Engineering or related field and substantial BESS experience, with a focus on procurement, evaluation, and risk transfer into contracts.