About ENSEK ENSEK builds the cloud‑native SaaS software that’s transforming how energy retailers operate, innovate and manage at scale. We help retailers lower operating costs, improve billing accuracy for consumers, and enhance customer experience through automation and AI‑driven insight, all underpinned by modern, cloud‑native architecture.About the roleAs a Senior Cyber Security Engineer you will embed security into the DNA of our B2B SaaS platform. You’ll partner with Engineering, SRE, Risk and Product to build security into every part of our product lifecycle, enabling high‑velocity delivery without ever compromising trust or resilience.Define and enforce secure configurations, network segmentation, identity and access controls for public cloud (primarily AWS).Implement secure coding practices, vulnerability management, secrets management and runtime protections for services and CI/CD pipelines.Build and maintain monitoring, logging and alerting for security events; Automate security checks, policy enforcement and remediation using IaC, CI/CD integrations and custom tooling where appropriate.Work with Risk, Legal and InfoSec to embed controls that support regulatory, privacy and contractual requirements across new territories.Measurable risk reduction: Engineering teams consistently apply threat modelling, secure coding and automated security gates.Security controls aligned with regulatory and contractual requirements for current and new markets.5+ years’ experience in cyber security within cloud‑native environments, DevOps or platform engineering contexts.Practical experience securing AWS services, IAM, networking, KMS/secrets and managed services.Detection and monitoring: Proficient with Terraform/CloudFormation and CI/CD integration to enforce policy and automate remediations.Hands on experience with Secure Web Gateways, IDP, IDS, EDR, SAST, DAST, WAF technologies.Comfortable writing automation and tools in Python, Go, Bash or similar languages.Company benefits25 days’ holiday + bank holidaysOption to buy or sell 5 extra annual leave days per yearVitality Health Insurance, including private healthcare, virtual GP access and mental‑health supportPension with 5% matched contributionRegular team‑wide and company‑wide events2 volunteering days per yearRemote‑first working environment (within the UK) with offices in London and Nottingham
Senior Cyber Security Engineer - Hybrid in Nottingham employer: ENSEK
At ENSEK, we pride ourselves on being an excellent employer by fostering a remote-first work culture that prioritises employee well-being and professional growth. Our commitment to security best practices is matched by our comprehensive benefits package, including health insurance and pension contributions, ensuring that our team members feel valued and supported in their roles. Join us to be part of a resilient team that encourages ownership and continuous improvement in the ever-evolving field of cybersecurity.
