Full-Time

Principal Security Engineer

Digital Risk Engineering

Posted on 10/31/2025

OVO Energy

OVO Energy

1,001-5,000 employees

UK energy supplier with tariffs

Compensation Overview

£105k - £138k/yr

+ On-target bonus + Flex Pay + 9% Flex Pay on top of salary + pension contributions? + Bonus plan: on-target 15%

London, UK + 2 more

More locations: Bristol, UK | Glasgow, UK

Hybrid

Hub-based presence; closest hub determined by business area; in-office at least once per week; field-based work possible.

Category
IT & Security (3)
, ,
Required Skills
Risk Management
Requirements
  • Experience: Expert
Responsibilities
  • Define Security Strategy & Roadmaps: Lead the definition, refinement, and communication of technical strategies and multi-year roadmaps for key risk engineering capabilities or domains (e.g., zero trust architecture, automated risk discovery and management), aligning them with business objectives, compliance requirements, and the evolving threat landscape.
  • Architectural Leadership & Governance: Develop, maintain, and govern secure reference architectures, critical design patterns, and enforceable technical standards. Provide expert architectural consultation and design reviews for the most complex, critical, or cross-functional projects and platforms. Steer technology choices through an expert security lens.
  • Solve Top-Tier Risk and Resilience Problems: Challenge the traditional security and tech risk assessment and modelling approach. Tackle the most challenging, ambiguous, and impactful technical risk problems facing the organisation, often requiring deep research, novel solution design, and cross-functional collaboration to resolve systemic issues. Prototype, evaluate, and champion innovative security and risk solutions.
  • Lead High-Impact Risk Initiatives: Build an automated and Al-enabled digital risk management system and use risk quantification to shape decision-making and guide us in prioritising risk responses and control design. Drive the technical vision, architecture, and strategy for complex, organisation-wide risk engineering programmes and transformations (e.g., implementing advanced data protection assessments and controls, maturing risk response capabilities, comprehensive attack surface reduction).
  • Organisational Risk Assessment & Strategic Guidance: Serve as a definitive authority on complex digital risk assessments, particularly those with strategic implications. Analyse systemic risks, synthesize complex information, and provide clear, actionable recommendations and strategic security guidance to senior leadership (VP/C-level) and technology executives.
  • Champion Advanced Secure Development & Testing: Drive the continuous advancement, adoption, and measurement of mature Secure Development Lifecycle (SDL) methodologies (DevSecOps) and sophisticated security testing strategies (e.g., threat-led penetration testing, fuzzing at scale) across the entire engineering organisation.
  • Influence & Strategic Collaboration: Enable OVO to lean into smart risks by building a platform that promotes scalable risk identification. evaluation, impact analysis, risk quantification and risk transparency to increase our confidence in OVO's ability to manage digital risk. Actively influence product management, platform engineering, and business unit roadmaps to proactively incorporate necessary policies and controls as code and address significant technical debt. Build strong, collaborative relationships with senior leaders across engineering, product, legal, and other business functions.
  • Mentor Senior Technical Staff & Elevate Practice: Mentor Lead 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
Desired Qualifications
  • Top 3 qualities for this role: Data-driven, Communication, Automator
  • 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.
  • 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

OVO Energy is a UK-based energy supplier that provides electricity and gas to residential customers with fixed and variable tariff options. It emphasizes fair, transparent pricing and customer service while promoting sustainability. Its product model centers on selling energy and offering related services; it differentiates itself through its commitment to planting 1 million trees annually and by leveraging technology to improve the customer experience, including simple pricing and digital tools. The company supports renewable energy adoption with products like heat pumps and other tech-driven solutions to reduce carbon footprints. OVO’s goal is to compete on value and service while driving the transition to cleaner energy, aiming to grow its customer base by delivering straightforward pricing, reliable support, and sustainable initiatives.

Company Size

1,001-5,000

Company Stage

Growth Equity (Venture Capital)

Total Funding

$568.9M

Headquarters

Bristol, United Kingdom

Founded

2008

Simplify Jobs

Simplify's Take

What believers are saying

  • E.On merger accelerates consumer energy flexibility, reduces bills, and strengthens financial resilience.
  • EV charging partnerships with EVA England, Volkswagen, Volvo drive customer acquisition and loyalty.
  • Beyond rewards programme and HSBC solar financing deepen customer relationships and cross-sell opportunities.

What critics are saying

  • E.On integration dilutes OVO's green brand identity and eliminates standalone technology differentiation.
  • Ofgem's £115-per-customer capital reserve requirement erodes thin retail margins versus competitors.
  • Octopus Energy's superior unit economics undercut OVO's EV charging pricing within 12 months.

What makes OVO Energy unique

  • E.On acquisition creates Britain's largest energy supplier with enhanced scale and infrastructure.
  • Kaluza software platform powers 400,000+ European EV chargers via proprietary OVO Charge app.
  • HSBC-backed solar financing and Volkswagen/Volvo partnerships expand renewable hardware revenue streams.

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Benefits

Health Insurance

Dental Insurance

Life Insurance

Paid Vacation

Performance Bonus

Flexible Work Hours

Gym Membership

Health Savings Account/Flexible Spending Account

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

1%
The Guardian
Dec 1st, 2025
From star jumps to job cuts: how Ovo Energy fell from grace

From star jumps to job cuts: how Ovo Energy fell from grace. As Britons braced for freezing wintry weather in early months of the 2022 energy cost crisis, the country's fourth largest gas and electricity supplier urged struggling households to try "doing a few star jumps" to keep warm. This poorly judged suggestion, alongside others such as "having a cuddle with your pets", was branded insulting and offensive by consumer groups. For many, the gaffe marked the beginning of Ovo Energy's precipitous fall from grace. With one questionable blogpost the company founded by Stephen Fitzpatrick in 2009 as a green disrupter to the legacy "big six" incumbents had come full circle; from an outspoken critic of poor customer service to appearing out of touch and insensitive to the struggle of its customers. At the time, Ovo had recently completed the acquisition of SSE's energy supply business, catapulting it into the same tier as the domestic power giants Fitzpatrick had criticised for years - and making him one of Britain's richest men. Now the supplier is warning in its latest account of doubts over its financial future, having failed to meet the regulator's resilience standards put in place after rocketing wholesale prices in the energy crisis caused scores of providers to collapse. It is poised to cut about 200 jobs in order to save millions of pounds in costs. The redundancies are part of plan submitted to the industry regulator, Ofgem, to prove that it complies with new financial standards. An Ovo spokesperson said: "We're making changes that bring us closer to customers and sharpen our focus as an energy retailer. Our actions will help us build a stronger, more resilient business that better serves our customers and meets regulatory requirements. Where roles are affected, we will consult fully and support colleagues throughout." Meanwhile, a revolving door of executives has struggled to raise fresh funds from investors to help it meet the new requirements. Earlier this month David Buttress, the former Just Eat chief, stepped down as Ovo chief executive after just 18 months, as did the company's chief financial officer, James Davies, who was hired to the job a little over a year ago from Monzo. In their place, Fitzpatrick is expected to install successors with a longstanding loyalty to the supplier. Chris Houghton, a former chief executive, is returning to the role to succeed Buttress, while Davies is expected to be replaced by Simon Todd, his deputy and a longstanding Ovo executive. The executive shake-up emerged just months after the former Sainsbury's chief executive Justin King was replaced on the board by the ex-Virgin Money boss Dame Jayne-Anne Gadhia, and comes as the company tries to raise £300m to shore up its finances. Ovo is under pressure to raise the funds to satisfy the regulator that it is financially resilient enough to operate in the market and also to replace one of its longest-standing shareholders, Mayfair Equity Partners, which is understood to be hoping to offload its 30% stake. Last month Sky reported that the Norwegian investment group Verdane had withdrawn from talks with Ovo over a potential investment in the business. The buyout company Permira was also reported to have backed away from talks after weeks of studying the terms of a potential deal. This came after Iberdrola, the owner of Scottish Power, is understood to have held tentative discussions about a possible tie-up with Ovo, however, no deal was reached. Ovo has even engaged advisers at Arma Partners to explore the sale of a stake in Kaluza, its software arm. But despite its financial woes and the ongoing high bills its customers face - Ofgem's price cap stubbornly remains about 50% higher than before Russia's invasion of Ukraine sent energy markets soaring - Ovo has continued to pay out millions every year to a company owned by Fitzpatrick, who is now worth an estimated £3bn. Each year since 2014 the supplier has paid millions to Imagination Industries for the right to use the Ovo brand, in a similar arrangement to how Richard Branson's businesses paid to use the Virgin name. The company sits within a sprawling empire controlled by Fitzpatrick, including the flying taxi firm Vertical Aerospace, Kaluza and London's Kensington Roof Gardens. A spokesperson for Ovo Energy did not respond when asked how the royalties due to Imagination Industries were calculated. Ovo's accounts show that the royalty fees payable were typically between £2.5m to £7m a year - but these sums climbed during the height of the energy crisis to £24m and £40m in 2022 and 2023 respectively. In total, the payable royalties outlined in Ovo's financial reports total £122m. The actual amounts paid by Ovo have not been confirmed. Fitzpatrick agreed to sell Ovo Energy its own brand licence in exchange for shares worth £150m last year after discussions with the regulator. As part of the deal the £40m payable in 2023 was waived. This suggests that the royalty scheme could have generated over £272m of value for Fitzpatrick, almost the same amount he is struggling to raise from investors. Two reasons emerge when trying to understand why the one-time wunderkind of Britain's energy market is facing an uphill battle for fresh investment. The first is that the perennial challenge of turning a profit in a market built on low-single digit margins has become even greater as political pressure to keep bills down has grown. Pouring investment into supplying household gas and electricity was inherently more risky than investing in other areas of the energy industry, according to Martin Young, a veteran industry analyst. "Energy suppliers can easily find themselves in the crosshairs of politicians who are under pressure to bring energy bills down, but they have none of the regulatory certainty that you might find when investing in energy networks or power cables, for example," Young said. The regulator's tougher stance on suppliers' finances has been identified as a second key reason investors are wary of the sector. Ofgem's minimum "capital targets" for energy providers, which came into force earlier this year, require suppliers to hold £115 in reserve for every customer they serve to protect against a repeat of the swathe of failures in 2021-22. The arrangement has proved controversial. Ovo is one of the companies that has argued that the requirement to hold "dead capital" as part of its financial resilience rules was putting off investors and should be reconsidered. "Ofgem panicked, put in place a kneejerk reaction and has failed to course correct," a senior energy industry source told the Guardian. "Ovo is a profitable business, which survived a one-in-30-year crisis. They clearly have some financial resilience. There's a growing sense that Ofgem should be thinking of a new way to measure financial resilience rather than creating 'dead capital' within a business." A spokesperson for Ofgem said: "The sector's financial resilience has come a long way - from net negative assets during the crisis to £7.5bn adjusted net assets today. This protects consumers by acting as a buffer, while allowing suppliers to focus on driving up service standards and invest in new, innovative products." Ofgem said it would not be "appropriate or proportional" for the regulator to approve every financial decision a supplier made, "however, we expect them to act responsibly and in line with our rules, and consider their customers' best interests".

electrive
Sep 25th, 2025
OVO launches combined home + public EV charging subscription in UK

The UK power firm Ovo Energy has just unveiled its new 'Charge Anytime' scheme - a subscription that bundles both home and public EV charging under a single monthly fee.

Jersey Evening Post Limited
Nov 25th, 2024
Ovo Energy launches HSBC-backed lending product for solar panels

Ovo Energy launches hsbc-backed lending product for solar panels.

Econostrum.info
Nov 14th, 2024
OVO Offers Customers Up to 2,700 Free Miles with Discounted Charging Plan

OVO Energy has launched a unique offer for Volvo electric vehicle owners: thousands of free miles through a discounted charging plan.

The Sun
Jul 1st, 2024
Brit EV drivers can get 10,000 FREE miles as major energy company links up with five car brands - you could save £100s

VOLKSWAGEN is accelerating it's commitment to sustainable motoring with a ground-breaking partnership with OVO Energy.

INACTIVE