Security and Information Security Architect

Company: NextEnergy Group

Location: London

Posted: April 11th, 2026

Security and Information Security Architect

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NextEnergy Group develops, builds, and operates large-scale solar Photovoltaic (PV) assets and battery storage projects across Europe. As our Security & Information Security Architect, you will set the security vision and implement secure-by-design principles for every layer of the organization — from field-level Operational Technology networks and real-time trading engines right through to corporate business systems.

A critical dimension of the role will be tight collaboration with:

Data Protection Officer (DPO): embedding privacy-by-design, supporting DPIAs and audits
Network & Security Engineering team: turning architecture patterns into robust, monitored, and recoverable configurations in production
External security advisors & key technology suppliers to align architectural controls with best practice guidance, managed service deliverables, and secure software supply chain requirements

This is a strategic yet hands-on role that balances secure-by-design principles with practical delivery across cloud, on-prem, and SaaS estates.

KEY RESPONSIBILITIES

Set & evolve enterprise security architecture (reference models, standards, patterns) covering IT, OT and hybrid-cloud environments that collect, process and trade renewable-generation data
Embed security & privacy requirements into solution designs, CI/CD pipelines and infrastructure as code, working closely with product squads and the DPO
Drive threat-modelling, technical risk assessments, and STRIDE/PASTA analyses for new solar-plant builds, grid integration projects and SaaS platforms
Act as lead architect on secure network topologies (IT/OT segmentation, zero-trust, IEC 62443 zones) in partnership with Network & Security Engineers
Define IAM, encryption-at-rest/in-transit, secrets management and key-management standards aligned with ISO 27001/27019 and NIS2
Review and select third-party security solutions; lead due diligence with EPC, O&M and SCADA vendors
Serve as technical SME for compliance frameworks (ISO 27001, NIST CSF, GDPR, IEC 62443, CIS Controls)
Collaborate with the DPO on data flow mapping, impact assessments (DPIA), breach notification readiness and audit responses
Track emerging threats to the energy sector (e.g., TSO/DSO interface risks, supply chain attacks on inverters) and update architecture roadmaps accordingly

SKILLS & COMPETENCIES

To be successful in this role, you will demonstrate:

Time management & prioritisation skills - things can get a little hectic, so the ability to effectively manage yourself and your workload is critical
Excellent interpersonal and communication skills (in English or/and other European languages) - you must be able to organise your thoughts in a way that others find clear and compelling. You will be expected to put together well-written, grammatically correct emails and other communications. When communicating verbally – whether over the phone, on video calls, in person or in meetings – you will need to be articulate, warm and engaging
Flexibility - being an effective team player means being flexible in your approach and open to getting involved with new things, even if they are not spelt out in your job description
Intellectual Curiosity – we are looking for someone who is truly interested in our profession and has the intellectual curiosity to delve deep into topics and bring fresh ideas to the team
Delivery focus – it may sound obvious, but the ability to proactively churn through work at pace and deliver quality outputs really matters
Strong critical thinking and problem-solving skills
Passion for our mission ‘to generate a more sustainable future by leading the transition to clean energy
Our values: be a leader, build trust, be responsible, be innovative and ‘bring your alpha’.

EXPERIENCE & QUALIFICATIONS

5+ years in security architecture/cyber engineering, incl. 3+ years securing renewable energy, utilities or critical-infrastructure environments
Deep knowledge of Azure security services, hybrid networking, container/serverless security and DevSecOps tooling
Demonstrable experience hardening corporate business platforms (ERP, CRM, HR, finance, M365, identity providers, SaaS)
Working familiarity with offensive-security / ethical-hacking techniques; able to think like an attacker, interpret red-team reports and translate findings into architectural controls
Strong grasp of OT protocols (Modbus/TCP, IEC 61850, DNP3) and SCADA/RTU architectures
Excellent stakeholder skills; proven record partnering with Data Protection Officer, Risk and Compliance, Security Operations.
CISSP, CISM, SABSA, TOGAF (Security), or Azure Security Speciality (desirable)
ISA/IEC 62443 Cybersecurity Specialist or GIAC GICSP, demonstrating ethical-hacking capability (desirable)
Experience navigating ISO 27001/27019 certification, NIS2 readiness, or TSO cybersecurity codes (desirable)
The right to work in the UK.

WHAT WE OFFER

A busy role in a supportive team, with plenty of opportunities to learn
International scope – we operate in over 8 countries
Hybrid working – we will need you in the central London (Mayfair) office at least twice a week, but you will normally be able to work remotely for the remainder of the week
30 days’ holiday per year (3 of which are taken during the festive shutdown in December)
BUPA Healthcare for you and qualifying dependents
Cycle to work and electric vehicle leasing schemes
Annual discretionary bonus.

Seniority level

Seniority level
Mid-Senior level

Employment type

Employment type
Full-time

Job function

Job function
Information Technology
Industries
Financial Services, Services for Renewable Energy, and Investment Management

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