Senior Technical Sales Manager-BESS (Polish Speaking) - All genders
KK Wind Solutions A/S
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Job summary
KK Group is seeking a Senior Technical Sales Manager-BESS to drive growth in Poland and CEE. You will translate customer needs into technically compliant BESS solutions, lead RFQs, and coordinate with engineering, sales, and EPC partners.
The role blends technical sales, system sizing, and grid-connection compliance, requiring fluent Polish and strong English, and a track record in energy storage or power infrastructure.
Qualifications
- Degree in Electrical Engineering, Power Systems Engineering, or a related technical discipline.
- Proven experience in technical sales, application engineering, solution engineering, or pre-sales engineering within BESS, renewable energy, or electrical power infrastructure.
- Practical experience in BESS plant sizing and preliminary electrical system design, including MW/MWh calculations, PCS selection, and MV/HV system configuration.
- Strong understanding of Polish grid connection procedures, grid codes, and technical requirements applicable to BESS and renewable energy projects.
- Experience with Polish grid operators (TSO/DSOs), either directly or through grid connection and compliance activities.
- Solid knowledge of MV/HV electrical systems, grid connection architecture, protection concepts, and power system fundamentals.
- Ability to interpret customer technical specifications and translate them into optimized system configurations and technical proposals.
- Experience preparing technical documentation, specifications, and proposal packages for customers and EPC partners.
- Strong communication and stakeholder management skills, with the ability to explain complex technical solutions clearly.
- Fluent Polish and professional proficiency in English, both written and spoken.
Responsibilities
- Lead the technical aspects of customer RFQs, translating customer specifications into technically compliant and competitive BESS solutions.
- Prepare and coordinate technical bid packages, including system configurations, technical specifications, scope of supply, single-line diagrams, and interface definitions.
- Lead technical pre-engineering activities by translating customer requirements into clear system configurations, scope of supply, and interface definitions, ensuring alignment between solution design, cost targets, and delivery feasibility.
- Perform preliminary BESS plant-level sizing and configuration based on customer requirements, including power capacity (MW), energy capacity (MWh), storage duration, and operating profiles.
Skills
Education
Tools
Job description
Senior Technical Sales Manager-BESS (Polish Speaking) - All genders
Are you ready to help shape the rapidly growing energy storage market in Poland and CEE? As our Senior Technical Sales Manager-BESS, you’ll connect customers, technology and grid requirements to develop technically strong, commercially competitive BESS solutions.
We are seeking an experienced Senior Technical Sales Manager to support the development and growth of KK Group’s Battery Energy Storage System (BESS) business, with a particular focus on the Polish and Central & Eastern European markets.
This role sits at the intersection of technical sales, BESS solution engineering, and grid integration, ensuring that customer requirements are translated into technically compliant, cost-competitive, and optimized BESS plant-level solutions.
You will play a key role in supporting customer engagements, developing technical proposals, performing preliminary BESS plant sizing and configuration, and addressing grid connection requirements in close collaboration with customers, EPC partners, and grid operators.
Working closely with our Sales & Business Development Directors and BESS System & Technology team, you will help develop competitive, standardized, and scalable BESS solutions while strengthening KK’s technical presence in the regional market.
- Job offer expiration: 25/12/2026
- Type of work: Hybrid
- Location: Europe, Poland
- Lead the technical aspects of customer RFQs, translating customer specifications into technically compliant and competitive BESS solutions.
- Prepare and coordinate technical bid packages, including system configurations, technical specifications, scope of supply, single-line diagrams, and interface definitions.
- Lead technical pre-engineering activities by translating customer requirements into clear system configurations, scope of supply, and interface definitions, ensuring alignment between solution design, cost targets, and delivery feasibility.
- Perform preliminary BESS plant-level sizing and configuration based on customer requirements, including power capacity (MW), energy capacity (MWh), storage duration, and operating profiles.
- Support the development of system cost structures and quotation inputs by aligning technical solutions with cost assumptions, identifying optimization opportunities, and ensuring competitiveness through standardized and simplified designs.
- Assess grid connection requirements and technical compliance for BESS projects, with particular emphasis on Polish grid codes and TSO/DSO requirements.
- Support customers and EPC partners in understanding grid connection procedures, technical conditions, and compliance requirements.
- Degree in Electrical Engineering, Power Systems Engineering, or a related technical discipline.
- Proven experience in technical sales, application engineering, solution engineering, or pre-sales engineering within BESS, renewable energy, or electrical power infrastructure.
- Practical experience in BESS plant sizing and preliminary electrical system design, including MW/MWh calculations, PCS selection, and MV/HV system configuration.
- Strong understanding of Polish grid connection procedures, grid codes, and technical requirements applicable to BESS and renewable energy projects.
- Experience working with Polish grid operators (TSO/DSOs), either directly or through grid connection and compliance activities.
- Solid knowledge of MV/HV electrical systems, grid connection architecture, protection concepts, and power system fundamentals.
- Ability to interpret customer technical specifications and translate them into optimized system configurations and technical proposals.
- Experience preparing technical documentation, specifications, and proposal packages for customers and EPC partners.
- Strong communication and stakeholder management skills, with the ability to explain complex technical solutions clearly.
- Fluent Polish and professional proficiency in English, both written and spoken.
- Direct experience with utility-scale BESS projects, including AC-coupled system architectures.
Familiarity with Polish TSO (PSE) and relevant DSO grid connection requirements and approval processes. - Understanding of grid-forming/grid-following inverter technologies, reactive power control, frequency response, and other grid support functionalities.
- Experience with power system simulation and engineering tools such as DIgSILENT PowerFactory, PSS®E, ETAP, or equivalent.
- Knowledge of European grid connection standards, including EN 50549 and applicable EU network codes.
- Familiarity with BESS plant controllers, EMS/PPC, SCADA, and cybersecurity considerations.
- Established technical relationships with Polish utilities, developers, EPC contractors, or engineering consultants.
- Experience supporting technical optimization and value engineering of BESS projects.
Location for this role is flexible and the position can be based in one of our offices in Poland, or operate as a home-based role in Poland depending on the candidate profile.
By joining KK Group, you will be part of a culture where diversity is embraced, every nationality is respected, and trust and collaboration across perspectives drives our success. Across our global organisation, we offer a wide range of job opportunities spanning office-based roles, production facilities, and onsite positions worldwide. Our roles cover multiple functions, locations, and disciplines, providing diverse career paths across the business. Whether you’re interested in engineering, manufacturing, operations, or support functions, you’ll find opportunities at KK Group to grow your skills, contribute to meaningful work, and make an impact.
Further information
KK Group is a global technology partner delivering power, controls, cooling, monitoring and service solutions for renewable energy and energy-intensive industries.
With more than 45 years of experience in the wind industry and technologies installed in over 120,000 turbines worldwide, KK Group provides critical electro-mechanical systems that enable electrification, improve energy efficiency, and optimise the lifetime performance of industrial assets.
The company’s capabilities span the full value chain - from development and manufacturing to service and digital solutions - supporting customers across the entire lifecycle of their platforms. Backed by its long-term owner, A.P. Moller Holding, KK Group is expanding beyond wind into selected energy-intensive industries including hydrogen, mining, rail and defence.
Today, KK Group employs more than 3,700 people across 10+ countries and is building a more diversified, resilient and global business - Powering Change towards a more sustainable tomorrow.
We wish to inform you that in accordance with requirements of the Whistleblower Protection Act of 14 June 2024 (Journal of Laws of 2024, item 928 as amended), we have implemented a procedure for internal notifications, the content of which can be viewed at https://www.kkwindsolutions.pl/whistleblowing
Visit www.kkgroup.com to learn more about our company and career opportunities.
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