Portfolio Executive in Slough

Portfolio Executive in Slough

Slough Full-Time 45000 - 55000 £ / year (est.) No home office possible
Downing

At a Glance

  • Tasks: Support management and optimisation of Battery Energy Storage Systems and High Voltage infrastructure.
  • Company: Join Downing, a fast-growing investment manager focused on impactful investments.
  • Benefits: Competitive salary, dynamic team environment, and opportunities for professional growth.
  • Why this job: Make a difference in renewable energy while developing your skills in a collaborative setting.
  • Qualifications: 3+ years in asset management or technical energy roles; strong communication and organisational skills.
  • Other info: Be part of a diverse team driving the energy transition and sustainability.

The predicted salary is between 45000 - 55000 £ per year.

About Downing

Downing is a fast-growing, entrepreneurial, responsible investment manager with headquarters in central London. We believe a great investment opportunity isn’t just financial - it’s a chance to invest in things that matter: our environment, our health, our society, our communities, and our economy. This aligns with our B CORP status. Our ability to adapt and innovate to create products for our investors is key to our growth and success, and our core values are vital to everything we do - from the businesses we invest in to the people we hire.

About the team

The Solar and Storage team is a dynamic and diverse group of professionals dedicated to advancing renewable energy solutions. The team includes asset management experts, investment specialists, and technical professionals who work together to optimize the performance and growth of our solar and storage assets. Our team members are located in key offices in London, Glasgow, and Stockholm, fostering a collaborative environment that leverages a wide range of expertise and perspectives.

Role and responsibilities

We are seeking a proactive and detail‑oriented Portfolio Executive (Energy) to join our Energy Transition team. Reporting to the Portfolio Lead, the successful candidate will support the management, optimisation, and compliance of Battery Energy Storage Systems (BESS) and High Voltage (HV) grid infrastructure, including shunt reactors. This role requires strong organisational skills, technical understanding, and the ability to collaborate across multiple internal and external stakeholders.

  • Portfolio Performance & Asset Management:
  • Work closely with Technical Asset Managers (TAMs) to ensure optimal performance and maintenance of BESS and HV assets.
  • Oversee Long-Term Service Agreements (LTSAs) with OEMs, ensuring contractual compliance and continuous improvement.
  • Monitor asset performance, analyse KPIs, and identify optimisation opportunities.
  • Participate in technical due diligence for new acquisitions and support onboarding into internal systems.
  • Contribute to lifecycle planning, reinvestment prioritisation and long‑term asset strategy.
  • Support budget tracking and cost efficiency analysis for asset-level OPEX and CAPEX.
  • Oversee refurbishment projects and ensure all procurement governance requirements are met.
  • Monitor regulatory and market developments relevant to BESS and HV assets and provide input into strategic asset planning.
  • Prepare and contribute to internal asset performance reports, including monthly dashboards, board papers, and investor updates.
  • Support external reporting obligations, including lender reporting, Capacity Market submissions, Grid Code compliance documents, and technical summaries.
  • Stakeholder Relationships:
  • Maintain strong working relationships with OEMs, contractors, DNOs/TSOs, and internal teams.
  • Support external and internal stakeholder communication, ensuring transparent and timely updates.
  • Conduct site visits to oversee asset condition, contractor activities, and operational performance.
  • Act as a reliable point of contact for queries related to BESS and HV asset performance.
  • Operations & compliance Support:
  • Manage operations and maintenance (O&M) agreements, monitoring both financial and non‑financial KPIs.
  • Oversee National Grid compliance obligations, including Grid Code requirements, operational notifications, and Capacity Market commitments.
  • Support safety, environmental and regulatory compliance across all assets.
  • Contribute to incident tracking, contractor coordination, and issue resolution.
  • Support reporting processes, governance meetings, and internal performance reviews.
  • Identify and escalate operational, technical, or compliance risks, ensuring accurate updates to asset risk registers.
  • Additional Responsibilities:
  • Support the development and improvement of internal management systems and reporting tools.
  • Participate in wider digitalisation and efficiency initiatives across the Energy Transition portfolio.
  • Occasionally travel to asset sites, OEM facilities, and contractor offices.
  • Represent the team at workshops, conferences, and company events.
  • Act as an ambassador for Downing, demonstrating professionalism, integrity, and alignment with company values.

Education, experience and skills

The ideal candidate will have the following:

  • Minimum 3 years’ experience in asset management or a technical energy‑sector role, ideally with exposure to BESS, Gas Peakers, Renewables, HV Infrastructure 400KV/132KV, or DNO/TSO operations.
  • Broad understanding of the power value chain, including TAM and OEM interactions.
  • Strong negotiation, interpersonal, and communication skills.
  • High attention to detail with the ability to balance strategic priorities and day‑to‑day operational tasks.
  • Proficiency in English and competence with digital tools and asset management systems.
  • Ability to work both independently and collaboratively within a multi‑site team.

Non-essential but desirable attributes:

  • Technical awareness of HV equipment or grid‑connected assets.
  • Experience in asset management, Operations & Maintenance (O&M) oversight, or engineering roles in the energy transition.
  • Familiarity with monitoring systems, SCADA alarms, or Capacity Market operations.

Portfolio Executive in Slough employer: Downing

Downing is an exceptional employer that champions a culture of innovation and responsibility, making it an ideal place for professionals passionate about renewable energy. Located in the heart of London, employees benefit from a collaborative environment that encourages personal growth and development, alongside a commitment to meaningful investments that positively impact society and the environment. With a diverse team and a focus on employee well-being, Downing offers unique opportunities for career advancement while aligning with its core values as a B CORP certified company.
Downing

Contact Detail:

Downing Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Portfolio Executive in Slough

✨Tip Number 1

Network like a pro! Get out there and connect with folks in the energy sector. Attend industry events, join relevant online forums, and don’t be shy about reaching out on LinkedIn. You never know who might have the inside scoop on job openings!

✨Tip Number 2

Show off your skills! Prepare a portfolio that highlights your experience in asset management or technical roles. Include case studies or projects you've worked on, especially those related to BESS or HV infrastructure. This will give you an edge when chatting with potential employers.

✨Tip Number 3

Be proactive! If you see a company you’re keen on, don’t wait for them to post a job. Reach out directly and express your interest. Tailor your message to show how your skills align with their needs, especially in areas like compliance and performance optimisation.

✨Tip Number 4

Keep learning! Stay updated on the latest trends in renewable energy and battery storage. Consider taking online courses or attending workshops. This not only boosts your knowledge but also shows potential employers that you’re committed to growing in the field.

We think you need these skills to ace Portfolio Executive in Slough

Asset Management
Technical Understanding of Battery Energy Storage Systems (BESS)
High Voltage (HV) Infrastructure Knowledge
Organisational Skills
Stakeholder Communication
Data Analysis and KPI Monitoring
Contractual Compliance Management
Budget Tracking and Cost Efficiency Analysis
Regulatory Compliance Knowledge
Negotiation Skills
Interpersonal Skills
Proficiency in Digital Tools and Asset Management Systems
Problem-Solving Skills
Attention to Detail
Ability to Work Independently and Collaboratively

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Portfolio Executive role. Highlight your experience in asset management and any technical knowledge related to BESS or HV infrastructure. We want to see how your skills align with what we're looking for!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about renewable energy and how you can contribute to our team. Keep it concise but impactful – we love a good story!

Show Off Your Skills: Don’t forget to showcase your organisational skills and attention to detail in your application. Mention specific examples of how you've optimised performance or managed stakeholder relationships in previous roles. We’re all about collaboration here at Downing!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands. Plus, it shows us you’re serious about joining our team!

How to prepare for a job interview at Downing

✨Know Your Stuff

Make sure you brush up on your knowledge of Battery Energy Storage Systems (BESS) and High Voltage (HV) infrastructure. Familiarise yourself with the latest trends and technologies in the energy sector, as well as Downing's approach to responsible investment. This will show that you're genuinely interested and prepared.

✨Showcase Your Experience

Be ready to discuss your previous experience in asset management or technical roles within the energy sector. Prepare specific examples of how you've optimised asset performance or managed compliance obligations. This will help demonstrate your capability to handle the responsibilities of the Portfolio Executive role.

✨Engage with Stakeholders

Since this role involves maintaining relationships with various stakeholders, think about how you can illustrate your interpersonal skills. Prepare anecdotes that highlight your ability to communicate effectively and collaborate with different teams, whether internal or external.

✨Ask Insightful Questions

Prepare thoughtful questions to ask during the interview. Inquire about Downing's future projects in renewable energy or how they measure success in asset management. This not only shows your enthusiasm but also helps you gauge if the company aligns with your values and career goals.

Portfolio Executive in Slough
Downing
Location: Slough

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