Senior Security Operations Analyst

He whakahaere aronga-anamata a Mercury, e tuku ana i te pūngao me ngā whitimamao ki te mahi a tangata o Aotearoa, ā, he nui ake i tā ētahi atu. Waihoki, e para ana i te huarahi mā te pūngao whakahou me te whai i tētahi anamata toitū. Kei te iho ko tō mātou koronga. Tiakina te anamata, mā te tūhono i ngā tāngata me ngā wāhi o te inamata. He āki tēnei i a tātou ki te whakapau kaha kia hua ake ai he anamata pai ake mō ō tātou tāngata, mō ō tātou hapori, me Aotearoa.

Mercury is a bold future-focused organisation, providing energy and telecommunications to more Kiwis than anyone else, leading the way with renewable energy and working toward a sustainable future. At the heart is our purpose. Taking care of tomorrow: connecting people and place today. This pushes us to do all we can to create a better future for our people, our communities, and Aotearoa New Zealand.

Tā mātou arawātea | Our Opportunity

We're looking for a Senior Security Operations Analyst to join our Security Operations Centre (SOC). You'll work alongside a supportive team and our managed security service partner, helping protect the digital and operational technology that underpins New Zealand's energy future.

This is a hands-on technical role where you'll lead investigations, build and tune detections, apply automation, and help shape how our SOC continues to evolve.

Tāu e mahi ai | What you'll be doing:

• Developing and refining detection logic across our SIEM and security tooling, and conducting proactive threat hunting
• Leading incident investigations end-to-end, including root-cause analysis and continuous improvement
• Applying automation and AI-assisted capability to streamline security workflows
• Contributing to detection, monitoring and response across operational technology (OT) environments
• Supporting our vulnerability and exposure management programme
• Mentoring team members and sharing technical knowledge across the SOC
• Providing technical input into our security partner relationships
• Contributing to security reporting and identifying opportunities to improve how we work

This role participates in an on-call roster as part of our 24/7 security operations model.

Tā mātou e kimi nei | We are looking for:

• 3+ years' experience in a security operations or security engineering role
• Hands-on knowledge of SIEM and endpoint detection platforms in a Microsoft-centric environment
• Experience writing detection logic in KQL or a comparable query language
• Familiarity with MITRE ATT&CK and modern detection approaches
• Scripting experience in Python, PowerShell or similar
• Strong investigation skills across endpoint, identity, cloud and network telemetry
• Self starter who communicates clearly — written and verbal — for both technical and non-technical audiences
• Comfortable with AI & Automation
• Exposure to operational technology (OT) or industrial control systems security is a bonus
• Relevant certifications (such as SC-200 or AZ-500) are a plus

He aha te pai o te hono mai? | Why join us?

• Additional 5 days leave per annum (MyDays)
• $400 one off tax-free payment towards setting up your home office
• A diverse workplace where your unique abilities and talents will be recognised and encouraged
• Annual salary reviews with excellent parental leave policy, with the option to purchase additional leave
• The opportunities, career paths and facilities associated with working for one of New Zealand's largest multi-utility providers
• Discounted health insurance and free life and income insurance
• Excellent well-being programme including up to $100 annual check ups and confidential assistance programme
• Gender affirmation leave and supportive bereavement leave to be taken when you lose anyone close to you, including your pet

Mercury is a learning organisation that is committed to providing you with opportunities to grow and develop that will benefit you now and in the future. Part of your role includes building your skillset and mindset through a variety of ways. We believe this creates an energised, innovative and agile work environment where you will feel valued.

E koekoe te tūī, e ketekete te kākā, e kūkū te kererū

Every voice has its place – and together, we thrive.

At Mercury, we believe that having a team of individuals with different backgrounds, experience and capability working together makes us stronger and better as an organisation. We know that some candidates may only apply for a role if they meet all of the criteria. If you want to join our team, we encourage you to apply for any role that matches your skills, capabilities and interests, even if you aren't sure if you meet all of the criteria.

Please click 'apply' to submit your application. If you require accessibility or assistance support from us during the application and selection process, please reach out to [email protected]. Please do not apply via this email address.

A full position description is available below. Applications close 18th June 2026 at 5:00pm. Please note that Mercury retains the right to bring a particularly strong candidate through to interview more quickly.