17.03.2026 aktualisiert

**** ******** ****
100 % verfügbar

Senior Product Owner & PM | Energy (BESS) Expert | AI & Digital Products

Hamburg, Deutschland
Weltweit
Master of Engineering
Hamburg, Deutschland
Weltweit
Master of Engineering

Profilanlagen

CV - Stefan Hain EN_Feb26.pdf

Über mich

Senior Product Owner & Product Manager mit 10+ Jahren Erfahrung in Energy/BESS und digitalen AI-Produkten. Spezialisiert auf Produktvision, Roadmaps, agile Umsetzung (PSPO I, PSM I) und datengetriebene Entscheidungen. Verfügbar für Remote- und Onsite-Projekte in DACH.

Skills

EnergieversorgungAutomobilindustrieBusiness MarketingBatteriemanagementBatterietechnologieBusiness DevelopmentBeratungCertified Scrum Product OwnerEnergiemarktErneuerbare EnergieProjektmanagementProdukt ManagementBatteriespeichersystemeCertified Scrum MasterBackend
Als hochmotivierter und erfahrener Management-Berater mit über 9 Jahren Berufserfahrung biete ich umfangreiche Kenntnisse im Bereich der Energiewirtschaft und IT. Mein Hintergrund als Wirtschaftsingenieur mit Schwerpunkt Erneuerbare Energien ermöglicht es mir, komplexe Projekte zu bewältigen und technische Herausforderungen zu lösen.

In meiner Karriere habe ich erfolgreich in verschiedenen Beratungsprojekten gearbeitet und Unternehmen aus unterschiedlichen Branchen unterstützt. Mein Fachwissen erstreckt sich auf Bereiche wie Unternehmensaufbau, OKR-Konzeption, agiles Projektmanagement, Automotive und Energieversorgung.

Zusätzlich zu meiner umfangreichen Beratungserfahrung habe ich 2020 ein Start-up gegründet. Durch den Aufbau meines eigenen Unternehmens habe ich wertvolles Wissen in den Bereichen Personalführung, Geschäftsmodellentwicklung, Markenaufbau, Entwicklung von Marketingstrategien, Buchhaltung und steuerliche Optimierung und dem IT-Backend Aufbau erworben.

Dank meiner vielfältigen Erfahrungen und Kenntnisse bin ich flexibel einsetzbar und in der Lage, herausfordernde Aufgaben zu bewältigen. Meine Kombination aus umfassender Beratungserfahrung, technischem Verständnis und unternehmerischem Hintergrund ermöglicht es mir, maßgeschneiderte Lösungen für meine Kunden zu entwickeln und sie bei ihrem Erfolg zu unterstützen.

Erfahrung

Berufserfahrung5 - 10 Jahre
Freelancer seit2022

Sprachen

DeutschgutEnglischverhandlungssicherSpanischGrundkenntnisse

Projekthistorie

Co‑Founder & CPO – GoSalty App

Salty Lemon GmbH

Internet und Informationstechnologie

< 10 Mitarbeiter

Salty Lemon builds smart tech & services for water sports experiences. As Co‑Founder and CPO I am responsible for the product vision and execution of GoSalty, an AI‑powered sports travel concierge with a B2C app and a B2B Partner Intelligence Hub.

Key responsibilities:

  1. Own the end‑to‑end product vision and roadmap for the GoSalty App (Daily Playbook, Trip Compass, Local Discoveries, Crew Layer, Partner Intelligence Hub).
  2. Act as Product Owner: define epics and user stories, manage the backlog, prioritise sprints and align UX, backend and mobile development (Scrum).
  3. Design and specify an explainable spot scoring engine for kitesurfing (multi‑factor metrics, discipline‑specific curves, rule‑engine DSL, “why”‑explanations in the UI).
  4. Lead product discovery: personas, customer interviews, feature‑ads, landing pages, funnel and retention analysis for data‑driven decisions.
  5. Define the B2B Partner Intelligence Hub: partner console, guest hub, event/class boards and lightweight content workflows for schools and local partners.
  6. Build and run the company together with the founding team (hiring, basic operations, funding materials), always with a strong focus on product/market fit.

Product Manager at SMA

SMA AG

Energie, Wasser und Umwelt

1000-5000 Mitarbeiter

As Product Manager in SMA’s Large Scale segment, I was responsible for the full product lifecycle of utility‑scale string and central battery inverters used in Battery Energy Storage Systems (BESS). In this role, I helped shape SMA’s product portfolio for the fast‑growing renewable energy and energy storage sector – with a focus on large‑scale projects in the megawatt range.

My core responsibilities included:

  1. Leading cross‑functional teams through development and market launch of new inverter platforms and product features for utility‑scale BESS projects.
  2. Defining and prioritising product requirements based on customer needs, technical innovations and regulatory changes (grid codes, safety, standards).
  3. Conducting market and competitor analyses to identify differentiation potential and derive strategic product USPs and positioning.
  4. Collaborating closely with Sales, R&D, Engineering and Finance to balance technical excellence, commercial viability and time‑to‑market.
  5. Providing input to the long‑term product roadmap and pricing strategy, including cost targets and margin expectations for global markets.

With my background in industrial engineering and a strong understanding of power electronics, renewable power plants and energy storage, I was able to bridge the gap between customer expectations, technical feasibility and business impact – driving product innovation and commercial success at the same time.

Co‑Founder & CEO – Salty Lemon (Kitesurfing‑as‑a‑Service)

Salty Lemon GmbH

Internet und Informationstechnologie

< 10 Mitarbeiter

Co‑founded Salty Lemon as a service business offering Kitesurfing‑as‑a‑Service: flexible, fully‑insured equipment leasing packages for kitesurfers, incl. advisory, swaps and upgrades.

  1. Designed and launched the subscription / leasing model, incl. pricing, conditions, insurance and customer journey from onboarding to returns.
  2. Built and optimised the operational processes (logistics, equipment lifecycle, partner coordination, customer support) and basic tool stack.
  3. Developed the initial go‑to‑market strategy: positioning, website, funnels, campaigns and partnerships within the kitesurf community.
  4. Used learnings from customers and operations as a continuous discovery channel for later digital product ideas (foundation for GoSalty’s product strategy).

MANAGER (Freelancer)

Ginkgo Management Consulting GmbH

Internet und Informationstechnologie

250-500 Mitarbeiter

Ginkgo Management Consulting is a boutique strategy consultancy focused on digital transformation and IT strategy for global corporations. As a freelance Manager, I supported a long‑term transformation programme for a major international OEM, with a focus on IT infrastructure, migration and governance.

Key responsibilities:

  1. End‑to‑end project management / PMO for an international IT infrastructure and migration initiative (transition & transformation).
  2. Conceptual design and roll‑out of a global communication and collaboration strategy to stabilise infrastructure operations.
  3. Planning, facilitation and moderation of executive workshops and steering committees across business and IT (C‑level stakeholder management).
  4. Design and implementation of a structured Demand & Project Portfolio Management process, incl. reporting structures, KPIs and dashboards for top management.
  5. Preparation of cost and efficiency analyses, identification of savings potential and optimisation levers in the project and application portfolio.

My role combined strategic thinking with operational execution, bridging business needs with IT capabilities and delivering measurable impact in a highly complex enterprise environment.

STRATEGY ADVISOR

Vattenfall Windkraft GmbH

Energie, Wasser und Umwelt

1000-5000 Mitarbeiter

As Strategy Advisor in Vattenfall’s Offshore business unit, I supported the leadership team in planning and executing cross‑functional strategic initiatives in offshore wind.

Key responsibilities:

  1. Leading and coordinating cross‑functional strategic projects within the Offshore BU (technology, operations, asset management, commercial).
  2. Ensuring strategy execution by tracking milestones, preparing decision papers and coordinating management and steering committees.
  3. Identifying, planning and driving improvement programmes in the Offshore BU (processes, performance, ways of working).
  4. Ad‑hoc support for the Head of Wind Farm Design (Technology) and the Head of Business Excellence & Asset Management with analyses, presentations and operational follow‑up.
  5. Coordination and preparation of Business Unit review meetings and management offsites for the Offshore management team.

This role strengthened my ability to work at the intersection of strategy, execution and stakeholder management in a large energy company – experience I now apply in product and portfolio roles.

MANAGEMENT CONSULTANT

P3 Energy & Storage GmbH

Energie, Wasser und Umwelt

1000-5000 Mitarbeiter

P3 Energy & Storage is a consultancy specialised in renewable energy and storage solutions and was part of the P3 Group, whose engineering consulting arm (umlaut) is now part of Accenture. As Management Consultant I worked on technical and commercial projects for utilities and energy groups.

Key responsibilities:

  1. Project lead for the development of a high‑voltage battery inverter (power electronics) – including project planning, coordination of engineering teams and milestone tracking.
  2. Support in product management for the high‑voltage battery inverter: requirements, specifications and alignment with customer and market needs.
  3. Profitability calculations and sensitivity analyses for offshore wind farms in Germany (CAPEX/OPEX, scenarios, risk assessment).
  4. Optimisation and redesign of financial reporting processes for a renewable‑energy group, improving transparency of project and portfolio performance.
  5. Cash‑flow modelling and liquidity planning for the same group, supporting management decisions on investments and financing.

Zertifikate

Master Business with AI (MBAI®)

Leaders of AI / Hochschule Fresenius

2025

Professional Scrum Master

Scrum.org

2023

Professional Product Owner

Scrum.org

2023

PMP project management training (6 days)

Project Management Institut

2017

Kontaktanfrage

Einloggen & anfragen.

Das Kontaktformular ist nur für eingeloggte Nutzer verfügbar.

RegistrierenAnmelden