{"id":3329341,"url":"https://alion.io/job/hitachi-principal-ot-cybersecurity-infrastructure-engineer","title":"Principal OT Cybersecurity Infrastructure Engineer","company":{"id":129,"name":"Hitachi","domain":"hitachi.com","url":"https://alion.io/company/hitachi","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":88,"open_postings":444,"ghost_share":0.002,"stale_share":0.678,"repost_share":0.02,"time_to_fill_p50_days":17,"computed_at":"2026-11-01T06:10:25Z"}},"role":"DevOps","role_family":"DevOps","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Sydney, Australia"],"countries":["AU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":80000,"max_usd":222000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":1037},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-27T11:32:52Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-11-01T19:57:53Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Location:\nSydney, New South Wales, AustraliaJob ID:\nR0149664Date Posted:\n2026-10-27Company Name:\nHITACHI RAIL STS AUSTRALIA PTY LTDProfession (Job Category):\nEngineering & ScienceJob Schedule:\nFull timeWork Arrangement:\nAbout Us\nA career at Hitachi Rail will help create a legacy. With operations in every corner of the world, our work goes to the cutting-edge of digital transformation and technology. From the multi-cultural strength of our global organisation to the sustainable and innovative ways we work to bring people together, there’s something for everyone to get stuck into. And that’s where you come in.\nJob Description:\nHitachi Rail is looking for an enthusiastic self-motivated Principal OT Cybersecurity Infrastructure Engineer who thrives in a fast-paced environment. The successful candidate is comfortable performing a wide range of tasks from administrative to strategic. The position is based in Sydney, Australia.\nDesigns, implements, integrates, and validates complete OT cybersecurity infrastructure for railway and other critical-infrastructure projects. The role combines ownership of security architecture with hands-on engineering, ensuring that platforms and controls meet project requirements, international standards, and applicable Australian regulatory obligations. Acting as the technical authority for security platforms, the role supports the full lifecycle from concept and detailed design through testing, commissioning, operational handover, and ongoing assurance.\nKey responsibilities:\nArchitecture and technical authority: Define end-to-end, vendor-agnostic OT cybersecurity architectures using zones and conduits, defence in depth, secure segmentation, high availability, and resilient design principles. Establish reusable technical standards, reference architectures, and integration patterns across projects and regions.\nPlatform design and implementation: Lead the design, configuration, integration, and validation of network and perimeter security, identity and access management, threat detection, SOC-enabling technologies, data protection, cyber recovery, and secure core IT/OT infrastructure.\nStandards and assurance: Translate IEC 62443, CLC/TS 50701, NIST, and ISO requirements into practical controls. Maintain traceability from requirements and risk assessments through architecture, implementation, testing, and assurance evidence.\nTesting and commissioning: Define and execute security FAT and SAT activities, hardening and configuration checks, functional control tests, and integration tests with OT subsystems. Support vulnerability reviews, remediation, Security Case inputs, and operational acceptance.\nTechnical coordination: Coordinate with OT, network, systems, SOC, vendor, and systems-integration teams. Plan technical work, manage dependencies and interfaces, identify delivery risks, and provide clear progress reporting.\nRegulatory alignment and leadership: Adapt designs to Australian critical-infrastructure, cybersecurity, data-protection, and logging obligations while preserving reusable architectural principles. Mentor engineers and influence multidisciplinary design decisions.\nRequired skills, knowledge, and experience:\nAn engineering degree enabling full membership to Engineers Australia\nBachelor’s degree in cybersecurity, computer science, information technology, telecommunications engineering, automation engineering, systems engineering, or an equivalent technical discipline.\nA master’s degree in cybersecurity, information assurance, or systems engineering is desirable.\nAt least five years of professional experience in IT/OT cybersecurity infrastructure, including responsibility for architecture and deployment.\nDemonstrated delivery experience in railway, transportation, energy, utilities, oil and gas, or another critical-infrastructure environment.\nHands-on experience designing, configuring, integrating, testing, and commissioning cybersecurity platforms and controls.\nPractical application of IEC 62443, including zones and conduits, defence in depth, security levels, and system and component requirements.\nExperience producing architecture, configuration, hardening, test, assurance, and operational handover documentation.\nRail and Australian Context\nExperience applying CLC/TS 50701 in railway projects.\nAbility to adapt cybersecurity architectures and controls to Australian regulatory, critical-infrastructure, data-protection, and logging obligations.\nExperience engaging with project assurance stakeholders, assessors, regulators, vendors, and systems integrators is desirable.\nDesirable Certifications\nCISSP, CISM, or CRISC.\nGIAC GICSP, GRID, or GCIP.\nIEC 62443 cybersecurity certification.\nAt Hitachi Rail, we know that a diverse business is a sustainable business. Working collaboratively with a range of internal networks, we’re continuously improving our policies and products. From accessible, sustainable design to achieving a better gender balance. We base these efforts on our core values: Harmony, Sincerity, and Pioneering spirit. And by aligning with these, we’re able to create a workplace where people not only feel comfortable but are given opportunities to thrive. We’re especially keen to hear from women and people of all genders considering a career in engineering, cybersecurity, and rail technology.\nWhat we offer:\nAnnual performance, development, and salary review process.\nOngoing professional development and training.\nSalary continuance.\nHealth and Wellbeing initiatives throughout the year (incl. flu vaccinations).\nEmployee Assistance Program (employees and family).\nDays off per year sponsored by the company in addition to the statutory public holidays and leave entitlements.\nInvitation to attend and participate in Company sponsored social events throughout the year.\nThank you for your interest in Hitachi Rail. If your application is of interest, we will be in contact. Please do not hesitate to discover more about us and our latest jobs athttps://www.hitachirail.com/careers.\nAt Hitachi Rail, there is a place for everyone.We welcome and value differences in background, age, gender, sexuality, family status, disability, race, nationality, ethnicity, religion, and world view.It is our commitment to create an inclusive environment - we are proud to be an equal opportunity employer.\nWe would be delighted if you would be one of our followers at https://www.linkedin.com/company/hitachirail","description_format":"text","description_chars":6433,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Professional development"],"hiring_locations":[{"name":"Australia","iso":"AU","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","Information Security","Enterprise Storage Systems","Systems Integrators"],"lifecycle":[{"event":"open","at":"2026-10-27T11:32:52Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.627,"p_room":1,"age_days":4,"expected_fill_days":17,"reasons":["conf:3","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/hitachi-principal-ot-cybersecurity-infrastructure-engineer","json_url":"https://alion.io/job/hitachi-principal-ot-cybersecurity-infrastructure-engineer.json","meta":{"generated_at":"2026-11-02T05:13:13Z","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":7570,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"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":129},"rest":"https://alion.io/mcp/rest/get_company?id=129"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fhitachi-principal-ot-cybersecurity-infrastructure-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"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%2Fhitachi-principal-ot-cybersecurity-infrastructure-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"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%2Fhitachi-principal-ot-cybersecurity-infrastructure-engineer"},{"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/hitachi-principal-ot-cybersecurity-infrastructure-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fhitachi-principal-ot-cybersecurity-infrastructure-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3329341}},{"tool":"search_jobs","arguments":{"company":"hitachi.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3329341},"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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