--- title: 'Principal Security Engineer (12 Month FTC) at OVO Energy' canonical: 'https://feeny.ai/job/principal-security-engineer-12-month-ftc-ovo-energy-me3h9fx9v3fa' type: 'job' last_seen: '2026-10-19' --- # Principal Security Engineer (12 Month FTC) at OVO Energy - **Company:** OVO Energy - **Posted:** 2026-10-06 - **Last confirmed live:** 2026-10-19 - **Apply:** https://careers.ovo.com/?gh_jid=8200768 ## Job description ## Role OVO-View Team: Attack Surface Management Location: Hub Based - Hybrid for all Salary banding:  £105,000 - £150,000 / 12 month FTC Experience: Expert Working pattern: Full-Time Reporting to: Deputy CISO Sponsorship: Unfortunately we are unable to offer sponsorship for this role. This role in 3 words: Pragmatic, Proactive, Engineer Top 3 qualities for this role: Data-driven, Communication, Automator Where you’ll work: Depending on the needs of your business area, we expect hub based people to be in the office at least once a week, and to go to OVO Connection events in-person. You’ll be assigned to the closest one of our three hub offices, Bristol, Glasgow, or London; unless your role requires field-based work. Each hub has accessible spaces to park your laptop, is designed to inspire people, help them connect and bring big ideas to life. Everyone belongs at OVO: At OVO, we are on a mission to solve one of humanity's biggest challenges, the climate crisis. And we know it takes all of us to change the world. That's why we need diverse people from all abilities, gender identities, ethnicities, ages, sexual orientations, life experiences and backgrounds to join us. Teamworking for the planet: Everything we do here spins around [Plan Zero.](https://www.ovoenergy.com/plan-zero) So, naturally, the team you’ll be joining plays a gigantic role in making that happen. Here’s how: In this individual contributor role, you will be on the frontline of OVO's security. You'll lead the reduction of our attack surface through technical leadership of a consolidated identity and access roadmap and highly automated amplification loops for security exposure management. This work is pivotal to maintaining a proactive and resilient posture, collaborating closely with engineering, procurement, risk and security teams across OVO to build better observability, and deterministic and non-deterministic workflows to better defend our mission to transition to a zero-carbon future. This role in a nutshell: As a Principal Security Engineer (Attack Surface Management) at OVO, you will be the key technical leader responsible for shaping the enterprise-wide strategy for zero trust access, attack surface observability and security weakness amplification workflows. This involves deep hands-on expertise, driving the innovation of exposure management practices, guiding architectural decisions for zero trust access and data loss prevention controls, and leading the way in solving complex, emerging security challenges. You will ensure OVO maintains a proactive and automated defence posture, setting the direction for critical security initiatives, and championing the integration of security standards embedded in configs and code and near miss retros to improve our resilience. You will be recognised as a trusted authority in your field, particularly in building automated, AI-enabled attack surface reduction workflows, leading critical vulnerability remediation incidents and leading complex control improvement initiatives. Your key outcomes will be: - Weakness management: - Lead and execute security defect discovery operations, vulnerability management (VM), remediation governance, and recurrence prevention across the enterprise with the aim of continuously improving compliance with policies, procedures, and guidelines. - Drive organisational and technical change by defining and implementing changes where required to internal processes & tooling to enhance proactive security controls. - Identity-focused access security: - Lead the development, revision, implementation and monitoring of security IAM policies, processes and related tooling across OVO. - The principal SME and strategic leader for IAM, defining and developing policy, influencing major strategic tech decisions, governs implementation of those solutions. - Defines enterprise identity and access management and governance strategy. - Supply chain security: - Champions and is a catalyst for improving secure supply chain management controls. - Minimises the cost of meeting third party risk management compliance while developing strategies to measure and reduce supply chain risk reduction. - Utilises principal-level expertise and perspectives to influence vendor relationships and security of third-party contracts. - Security risk treatment prioritisation: - Serve as a trusted challenger and SME, including to senior stakeholders, on trade-offs that appear in designing enterprise-level security systems that carefully balance risk appetite and conflicting priorities (e.g. cost, speed, rigour). - Able to innovate with more efficient and effective ways to protect, detect, respond and recover from security threats. - Coaches others in security architecture. - Defines attack path mapping frameworks that scale and can align organisational risks and mitigation priorities. - Directly influence OVO’s core model architecture with security best-practice in mind, utilising engineering-first approaches to solve complex security problems. - Mentor Senior Technical Staff & Elevate Practice: - Mentor staff and senior engineers across OVO in advanced security disciplines, strategic thinking, architecture, and technical leadership. - Actively contribute to internal communities of practice, develop training for senior staff, and elevate the overall security engineering practice at OVO. - Community of Practice: - Drive the Community of Practice (CoP) for your role by actively leading, cultivating and growing the CoP as a result of your industry engagement and thought leadership. - Create content, engage in knowledge exchange / cross-pollination to further your craft - Mentor and coach individuals in the role-based competencies associated with a CoP - Input to upskilling and learning pathways based on the CoP that will aid individuals' career progression You’ll be successful in this role if you… - Inspire and lead cross-functional teams, driving a culture of excellence and collaboration. - Think critically and strategically to align security initiatives with business goals. - Demonstrate excellent verbal and written communication skills, effectively conveying complex security concepts to non-technical stakeholders. - Demonstrate strong influencing skills to drive security adoption and change across the organisation. - Apply advanced problem-solving and analytical skills to address complex security challenges. - Anticipate and adapt to changes in the internal and external business context and evolving security landscapes and emerging threats. - Dedicate time and thought to mentoring and developing other senior security professionals and technical leaders. - Exhibit a drive to find novel, effective, and potentially unconventional solutions to hard security problems. - Are recognised internally and potentially externally as an expert and forward-thinker, contributing to security communities or publications. - Are able to balance security ideals with practical business/engineering realities to achieve tangible outcomes. - Demonstrate a keen understanding of how security enables and impacts broader business objectives, strategy, and risk management. Let’s talk about what’s in it for you: We’ll pay you between £105,000 and £150,000, depending on your specific skills and experience. We keep our pay ranges broad on purpose to give us, and you, flexibility to match your experience to our zero carbon mission. You’ll be eligible for an on-target bonus of 15%. We have one OVO bonus plan that focuses on the collective performance of our people to deliver our Plan Zero goal. We also offer plenty of green benefits and progressive policies to help you feel like you belong at OVO…and there’s flex pay. We'll give you 9% Flex Pay on top of your salary – 4% of this is auto enrolled into your pension, and the remaining 5% is yours to do what you like with. You can use this to buy from our extensive range of flexible benefits, including our green benefits which we've put at the heart of our offering, add to your pension or even take it as cash. Here’s a taster of what’s on offer: For starters, you’ll get 34 days of holiday (including bank holidays). For your health With benefits like a healthcare cash plan or private medical insurance depending on your career level, critical illness cover, life assurance, health assessments, and more For your wellbeing With gym membership, travel insurance, workplace ISA, will writing services, dental insurance, and more For your lifestyle With extra holiday buying, discount dining, home & tech loans, and supporting your favourite charities with give-as-you-earn donations For your home Get up to £400 towards any OVO Energy plan, plus great discounts on solar, smart thermostats and EV chargers For your commute Nab a great deal on ultra-low emission car leasing, plus our cycle to work scheme and public transport season ticket loans Want to hear about our full range of flexible benefits and progressive people policies? Our People Team can tell you everything you need to know. For your Belonging To find better ways to support our people, we need to listen to each other’s experiences and find ways to build a truly inclusive and diverse workplace. As part of this, we have 8 Belonging Networks at OVO. Led by our people, for our people - so when you join OVO, you can play a part - big or small - with any of the Networks. It's up to you. Oh, and one last thing... We’d be thrilled if you tick off all our boxes, yet we also believe it’s just as important we tick off all of yours. And if you think you have most of what we’re looking for but not every single thing, go ahead and hit apply. We’d still love to hear from you! If you have any additional requirements, there’s a space to let us know on the application form; we want to make the process as easy and comfortable for you as possible. ## About OVO Energy ## Company Overview - **One-liner**: OVO Energy is a UK-based energy technology and services company on a mission to power human progress with clean, affordable energy for everyone. - **Entity Type**: Private (part of the OVO Group, which is privately held) - **Headquarters**: Bristol, England, United Kingdom - **Founded**: 2009 - **Founders**: Stephen Fitzpatrick ## Core Business - **Primary industry**: Energy supply, energy technology (cleantech), and home decarbonisation services. - **Target customers**: B2C (residential households in the UK), B2B (through its SaaS platform Kaluza for utilities globally). - **Mission or purpose statement**: "To power human progress with clean affordable energy for everyone." The company has committed to its "Plan Zero" strategy to reach net-zero carbon emissions by 2035. ## Products & Services - **OVO Energy (Retail Supply)**: The core business providing gas and electricity to approximately 4 million UK homes. Includes smart tariff plans, EV charging tariffs, and the "Beyond" Energy Savings Account. - **Kaluza (SaaS Platform)**: An advanced, end-to-end SaaS platform for energy utilities. It enables real-time data-driven operations, customer personalisation, and integration of low-carbon technologies (EVs, solar, heat pumps). Kaluza is a separate entity within the OVO Group with a global client base (e.g., AGL in Australia). - **OVO Home Services**: Installation and support for green home technology, including EV chargers, solar panels, and heat pumps. The company also has a franchise network for community-level solar installation. - **OVO Energy Experts**: A service where experts visit homes (over 6,500 in 2024) to provide tailored energy efficiency advice. ## Market Standing - **Valuation/Market Cap**: Not publicly available for OVO Energy itself. Kaluza (sister company) was valued at $500 million post-money following a $100 million investment from AGL in 2024. - **Key Metric**: Adjusted EBITDA of £42 million in 2024 (down from £225 million in 2023), serving ~4 million customers. OVO has provided £140 million in customer support since 2022. - **Notable Investors/Partners**: Mitsubishi Corporation (long-standing partner and joint venture in Japan), AGL (Australian energy giant, $100M investment in Kaluza), and other global utilities. - **Growth Signals**: - Launched "Beyond," the UK's first Energy Savings Account, in 2024. - Kaluza signed a landmark software licensing deal with AGL in Australia, expected to cut AGL’s operational costs by $46-60 million. - Launched Kaluza Japan via a joint venture with Mitsubishi Corporation. - Active in campaigning for a social tariff and policy change with the UK government. - Over 140,000 Trustpilot reviews with a 4.5-star rating. ## Competitive Advantages - **Vertically Integrated Ecosystem**: OVO controls the full customer journey from energy supply to SaaS platform (Kaluza) to home installation services, creating a unique, data-rich feedback loop. - **Technology-First Approach**: Kaluza is a genuine platform differentiator, allowing OVO and its partners to innovate faster and lower costs compared to traditional utilities. - **Strong Brand & Trust**: Consistently high customer satisfaction (4.5* Trustpilot) and a clear, authentic net-zero mission ("Plan Zero") that resonates with consumers and employees. - **Scale & Incumbency**: With 4 million customers, OVO is one of the UK's largest energy challenger brands, giving it significant market influence and data assets. ## Strategic Focus - **Scale Kaluza Globally**: The primary growth engine. The focus is on signing more international utility clients (e.g., AGL, Mitsubishi) to license the Kaluza platform, targeting operational cost savings and green tech integration for partners. - **Lead UK Home Decarbonisation**: Accelerating the installation of heat pumps, solar panels, and EV chargers to meet UK government targets (e.g., 600,000 heat pumps per year by 2028) and reduce customer carbon footprints. - **Deepen Customer Relationships**: Expanding the "Beyond" account model to increase customer lifetime value, loyalty, and cross-selling of green tech. - **Achieve Plan Zero**: On track to have a 100% electric fleet of vans and 100% renewable electricity for all offices by the end of 2025. The long-term goal is net zero by 2035. ## Why Work Here - **Mission-Driven Culture**: The company has a clear, urgent purpose ("Plan Zero") that unites employees. The CEO, David Buttress, describes the mission as "energising and infectious." - **Award-Winning Inclusion**: Recognised as a **Times Top 50 Employer for Gender Equality** (Sunday Times Best Places to Work 2024) and holds accreditations as a Disability Confident Employer, Menopause Friendly, and Period Positive Workplace. - **Progressive People Policies**: Offers unlimited, fully paid compassionate leave, unlimited paid leave for pregnancy loss, paid leave for "moments that matter" (e.g., child's first day of school, wedding), and "recharge" leave after intense periods. - **Flexible & Hybrid Working**: The company promotes flexibility and wellbeing. Offices are in Bristol (HQ), London, and other locations. - **Strong Engineering & Tech Culture**: With Kaluza as a core product, there is significant investment in software engineering, data science, and product development. The company explicitly seeks "brightest minds" to solve complex energy challenges. - **Employee Resource Groups (ERGs)**: Investment in belonging network leads (Radius Certified), indicating strong support for employee-led communities. ## Sources 1. [OVO Energy Careers Page](https://www.ovoenergy.com/careers) 2. [OVO Energy About Page](https://www.ovoenergy.com/about) 3. [OVO Group Careers Page](https://careers.ovo.com/) 4. [OVO Annual Report & Plan Zero Report 2024 (PDF)](https://company.ovo.com/wp-content/uploads/2025/09/OVO-ANNUAL-REPORT-FY24-FINAL-SEPT-2025.pdf) 5. [OVO Energy Main Site](https://www.ovoenergy.com/) ## Other roles at OVO Energy - [Delivery & Growth Lead - 12 month FTC](https://feeny.ai/job/delivery-growth-lead-12-month-ftc-ovo-energy-46b2zdbqcgeh) - [Senior Product Manager - 12 Month FTC](https://feeny.ai/job/senior-product-manager-12-month-ftc-ovo-energy-eara41nbymdr) - [Staff Product Manager - 12 Month Fixed Term Contract](https://feeny.ai/job/staff-product-manager-12-month-fixed-term-contract-ovo-energy-ewm201rmvxbs) - [Indirect Tax Manager - 6 Month Fixed Term Contract](https://feeny.ai/job/indirect-tax-manager-6-month-fixed-term-contract-ovo-energy-3wyyqwhks1kf) - [Franchise Operating Partner - 12 month FTC](https://feeny.ai/job/franchise-operating-partner-12-month-ftc-ovo-energy-s8ddq0ehse63)