{"id":4112404,"url":"https://alion.io/job/leidos-senior-security-engineer-4","title":"Senior Security Engineer","company":{"id":7791,"name":"Leidos","domain":"leidos.com","url":"https://alion.io/company/leidos","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":77,"open_postings":330,"ghost_share":0.003,"stale_share":0.888,"repost_share":0.012,"time_to_fill_p50_days":28,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Security","role_family":"Security","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Canberra, Australia"],"countries":["AU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"SIEM","optional":false},{"name":"Splunk","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-11-11T23:35:58Z","employer_posted_date":"2026-11-11","last_verified_at":"2026-11-12T07:27:45Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"GEO SPACES - Senior Security Engineer\nJoin Leidos & work on AGO GEO SPACES mission critical networks \nGEO SPACES Security Operations Capability \nTSPV, willing to undergo a DISA, located in Canberra \nDue to the nature of the role, you must be an Australian Citizen who holds a TSPV security clearance; accompanied by the ability to be successful for a DISA/OSA.\nYour New Role and Responsibilities\nThis role will report directly to the GEO SPACES Security Operations Team Lead and be capable of operating independently within the scope of their duties. There is an element of flexibility in this role based on available skills and experience. Security Engineers will work closely with the Cyber Security Analysts as well as independently to deliver the following functions:\nDo Work That Matters\nPrimary roles and responsibilities:\nSystem security controls review and implementation - OS, application and network hardening in accordance with DSPF and ISM controls.\nSystem log on-boarding into centralised SIEM including log normalisation, log forwarder deployment and configuration.\nSecurity tool deployment and configuration.\nDetection engineering including testing, validation, playbook development and quality assurance.\nSystem security advice and collaboration with network and operations teams, including IT security engineering of; endpoint, network, gateway and other Configuration Items\nIn-depth experience with:\nSIEM technologies - Splunk\nAWS and AWS security applications\nEDR/XDR tools\nCloud and web application firewalls\nIDAM\nOS SOE hardening - Linux and Windows\nWindows AD, Server and group policies\nSecondary duties:\nCyber Threat Intelligence platform and feed integration and maintenance\nVulnerability Management platform and tools, integration and maintenance\nQuality Assurance and Control of SOC investigations and response\nSupport complex and emergency Incident Response activities using a range of cloud and other response tools, techniques and procedures.\nConduct Research, Development and Testing of novel and emerging technologies, threats and opportunities in the cyber security domain\nSupport Hunt activities using industry frameworks\nProvide trusted advisory services\nDevelop security operations related system requirements\nChange review and approvals\nDevelop and maintain stakeholder relationships, including with partner SOCs and security authorities in and out of Defence\nJoin us at a pivotal time as we introduce multiple new systems over the first 12-18 months, creating exciting opportunities to shape and mature our evolving capability.\nDuring that period, it is expected that the following will mature within the Security Operations team:\nTeam structure and alignment to capability delivery to support the larger team and expected higher cadence of work\nProcess and procedure for both internal operations and engagement with external capabilities\nReporting within the Leidos structure, the agency and other authorities.\nWhat You’ll Bring to Make An Impact\nExperience levels that are commensurate with various levels of security operations roles, a passion for IT security operations and the ability to work well as part of our team.\nThis role will primarily focus on the on-boarding of new systems, ensuring that appropriate technical security controls are implemented and effective centralised monitoring can be achieved. It is expected that you will work independently from the central SOC for a significant amount of time, and closely with system engineering teams to achieve security specific requirements. When not on-boarding new systems, this role will work within the SOC Security Engineering team, in support of enduring activities listed in the ‘Secondary Duties’ section.\nThis is a senior role, where candidates will have 5 - 10 years’ experience delivering the functions listed in Role Description, motivation to drive growth and maturation of existing capabilities and willingness to contribute to the growth of junior team members. Ideally, previous experience working in an AGO, ASD, other intelligence agencies or Defence, and an understanding of key stakeholders and processes associated with delivering security operations in a Defence context.\nAdditional information\nDue to the nature of the role, you must be an Australian Citizen who holds a acive TSPV security clearance; accompanied by the ability to be successful for a DISA/OSA.\nIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.\nIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.\nOriginal Posting:\nFor U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.\nPay Range:\nThe Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.","description_format":"text","description_chars":5747,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","C4ISR","Defense Manufacturing","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-11-11T23:35:58Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":27,"reasons":["conf:2","win:early","comp:brand"],"computed_at":"2026-11-12T09:45:16Z"},"pay":null,"html_url":"https://alion.io/job/leidos-senior-security-engineer-4","json_url":"https://alion.io/job/leidos-senior-security-engineer-4.json","meta":{"generated_at":"2026-11-12T09:45:16Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":19822,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":7791},"rest":"https://alion.io/mcp/rest/get_company?id=7791"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fleidos-senior-security-engineer-4"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fleidos-senior-security-engineer-4"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fleidos-senior-security-engineer-4"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/leidos-senior-security-engineer-4\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fleidos-senior-security-engineer-4"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4112404}},{"tool":"search_jobs","arguments":{"company":"leidos.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4112404},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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