Senior Security Analyst
This is a , Full Time vacancy that will close in {x} days at {xx:xx} BST.
The Vacancy
The role
As a Senior Security Analyst, you'll lead the response to complex cyber security threats, acting as the highest technical escalation point within our SOC. You'll investigate and contain incidents, hunt for emerging threats, enhance detection capabilities, and help strengthen customer security across SIEM, SOAR, EDR/XDR, cloud and identity platforms. You'll also contribute to automation, playbook development, service improvements and the growth of the wider SOC team, while participating in an on-call rota with additional allowances and overtime where applicable.
What will I be doing?
Security Monitoring & Incident Response
- Lead major incident investigations, response and customer communications.
- Analyse and remediate threats across SIEM, EDR/XDR, cloud and identity platforms.
- Produce incident reports, root cause analysis and response recommendations.
Threat Hunting & Intelligence
- Proactively hunt for threats and investigate emerging attack techniques.
- Leverage threat intelligence to improve detection and response capabilities.
- Enhance coverage aligned to the MITRE ATT&CK framework.
Detection Engineering & Automation
- Develop and optimise detections, analytics and SOAR playbooks.
- Improve alert quality, monitoring visibility and response automation.
- Support onboarding of new security tools and log sources.
Technical Leadership
- Act as the senior escalation point for SOC analysts.
- Mentor junior team members and uphold investigation quality.
- Contribute to training, documentation and continuous improvement.
Customer Engagement
- Provide technical expertise during customer incidents and reviews.
- Deliver security findings, recommendations and service guidance.
- Support customer onboarding and ongoing security optimisation.
Operational Excellence
- Maintain compliance with SLAs, processes and documentation standards.
- Support audits, service development and continuous improvement initiatives.
What will I bring to the role?
Technical Knowledge
- Strong knowledge of modern security operations, threat detection and incident response.
- Experience with SIEM, SOAR, EDR/XDR, cloud and identity security platforms.
- Understanding of threat intelligence, threat hunting, MITRE ATT&CK and detection engineering.
- Familiarity with Windows, networking, cloud security, vulnerability management and KQL.
Experience
- Experience within a SOC, MDR, MSSP or cyber security operations environment.
- Proven ability to investigate high-severity security incidents.
- Hands-on experience with SIEM, EDR and customer-facing incident response.
- Comfortable producing technical reports and mentoring junior analysts.
Desirable Technical Skills
- PowerShell and Python scripting.
- API integrations and security automation.
- Detection engineering and content development.
- SOAR playbook creation and optimisation.
Why work for ANS?
At ANS, we’ve created a place where everyone can be themselves, and we empower our people to get the job done. Openness, ambition, honesty, and passion are what drive us every day. We are bold, courageous, and innovative – and we do it like no other. We invest in our people. In training, development, health and more – we give you the benefits and flexibility to maintain a happy work-life balance.
We’re proud of the inclusive, fun, dynamic environment we’ve created. It’s a safe space that works for all. You don’t have to be a techie to work in tech. Bring your authentic self and find your dream role here. Find out more at LinkedIn pages.
What’s in it for you?
With fantastic benefits, an inclusive culture, and a cool office space, we’re your kind of workplace.
Company benefits
- As standard: 25 days’ holiday, plus you can buy up to 5 more days
- A little extra: we’ll give you your birthday off, and an extra celebration day for whatever you want! Tying the knot? You get 5 days’ additional holiday in the year you get married. Oh, and 5 volunteer days!
- Private health insurance
- Pension contribution match and 4 x life assurance
- Flexible working and work from anywhere for up to 30 days per year (some exceptions)
- Maternity: 16 weeks’ full pay, Paternity: 3 weeks’ full pay, Adoption: 16 weeks’ full pay
- Company social events – get ready for a jam-packed calendar
- Electric car scheme
- 12 days of personal growth development time
ANS are an equal opportunities employer. We encourage diversity and anyone applying for a role at our organisation can be assured that their application will be treated fairly, regardless of age, disability, gender reassignment, gender expression, marriage and civil partnership, pregnancy and maternity, race, religion or belief and sex or sexual orientation. We sometimes ask for information relating to individuals for equal opportunities monitoring purposes only.
The Benefits
The Benefits
Work from anywhere
Private Medical
Pension Scheme
Life Assurance
Volunteer Days
Electric Vehicle Scheme
Personal Development Days
Ride to Work Scheme
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