{"id":3718492,"url":"https://alion.io/job/icon-principal-engineer-ii-linux-team","title":"Principal Engineer II (Linux team)","company":{"id":5677,"name":"ICON","domain":"iconplc.com","url":"https://alion.io/company/icon","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":84,"open_postings":54,"ghost_share":0,"stale_share":0.852,"repost_share":0,"time_to_fill_p50_days":15,"computed_at":"2026-11-04T06:34:25Z"}},"role":"DevOps","role_family":"DevOps","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dublin, Ireland"],"countries":["IE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"Bash","optional":false},{"name":"CentOS Stream","optional":false},{"name":"CI/CD","optional":false},{"name":"DNS","optional":false},{"name":"Grafana","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"OpenShift","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"Red Hat","optional":false},{"name":"TCP/IP","optional":false},{"name":"Terraform","optional":false},{"name":"VMWare","optional":false}],"status":"live","first_seen_at":"2026-11-03T00:00:00Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-04T07:53:22Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Principal Engineer II - Office Hybrid in Dublin, IrelandICON is a global healthcare intelligence and clinical research organisation united by a mission to bring new medicines and treatments to patients faster.\nAs a values-driven organisation, integrity, collaboration, agility, and inclusion are at the heart of how we work and interact with each other, customers, patients and suppliers.\nOverview\nWe are seeking a highly skilled Principal Engineer II to join our Linux team, and to provide senior technical leadership in designing, implementing, and supporting enterprise-grade Linux platforms. This role is critical to maintaining the reliability, scalability, and security of infrastructure that underpins business-critical services. The successful candidate will bring deep expertise in Linux systems,IBM Spectrum Scale (GPFS), Red Hat OpenShift/Kubernetes, OpenShift AI and VMware, and will play a key role in driving innovation, operational excellence, and platform modernization.\nThis role is ideal for a seasoned Linux engineer who thrives in complex environments and is passionate about building resilient, scalable platforms. As a Principal Engineer II, you will play a pivotal role in shaping the infrastructure strategy while acting as a trusted technical leader for mission-critical initiatives.\nThis is an Office Hybrid role with 60% office-attendance (3 times a week) in our HQ in Leopardstown, Dublin 18.May require participation in an on-call rotation.\nOccasional off-hours work for maintenance or incident response.\nKey Responsibilities\nServe as the technical lead for business-critical projects, owning architecture, design decisions, and successful delivery.\nDesign, implement, and maintain highly available, scalable Linux environments across on-premises and virtualized platforms.\nAdminister and optimize IBM Spectrum Scale (GPFS) for high-performance, distributed storage and data management.\nDeploy, manage, and enhance container platforms using OpenShift/Kubernetes, and OpenShift AI, ensuring secure and efficient application delivery.\nManage and optimize virtualized infrastructure leveraging VMware technologies.\nEnsure system stability, performance, availability, and data integrity across all Linux-based infrastructure.\nDevelop and implement security hardening standards, ensuring compliance with organizational and industry best practices.\nLead troubleshooting and root cause analysis for complex system and performance issues in distributed environments.\nDrive automation initiatives using scripting and infrastructure-as-code to improve efficiency and reduce operational risk.\nCollaborate with application, DevOps, security, and infrastructure teams to align platform capabilities with business needs.\nEstablish and enforce engineering standards, best practices, and documentation.\nMentor and provide technical guidance to engineers, fostering skill development and knowledge sharing.\nRequired Qualifications\nExtensive experience in Linux system engineering and administration (e.g., RHEL, CentOS, or equivalent).\nProven expertise with IBM Spectrum Scale (GPFS), including design, deployment, and performance tuning.\nProven experience with OpenShift, Kubernetes and OpenShift AI, including cluster management and container orchestration.\nExperience in using VMware environments.\nDeep understanding of system performance tuning, monitoring, and capacity planning.\nExperience implementing security hardening, patching strategies, and compliance frameworks.\nStrong scripting and automation skills (e.g., Bash, Python, Ansible, Terraform).\nSolid networking knowledge (TCP/IP, DNS, load balancing, firewalls).\nStrong understanding of disaster recovery and contingency planning.\nExperience with high-availability architectures.\nFamiliarity with CI/CD pipelines and Platform Engineering practices.\nKnowledge of enterprise monitoring and logging tools (e.g., Prometheus, Grafana, ELK stack and Solarwinds).\nRelevant certifications (e.g., RHCE, RHCA, OpenShift, or equivalent).\nDemonstrated ability to lead complex technical projects and influence architectural decisions.\nStrong written and verbal presentation and communication skills, with the ability to engage both technical and non-technical stakeholders.\nKey Competencies\nStrong problem-solving and analytical skills.\nExcellent communication and stakeholder management abilities.\nLeadership mindset with the ability to drive initiatives and mentor teams.\nProactive approach to continuous improvement and innovation.\nAbility to perform effectively in fast-paced, high-impact environments.\nEmployment with ICON is contingent upon having the legal right to work in the country where the role is based.\nRewards & Benefits\nICON offers a competitive and comprehensive total rewards package designed to support your health, wellbeing, and career development.\nBenefits may include:\nCompetitive base salary and performance related incentives\nHealth and wellbeing programmes including medical, dental, and vision coverage where applicable\nRetirement and pension plans\nLife assurance and disability coverage\nEmployee assistance programmes and wellbeing resources\nLearning and development opportunities through structured training and career pathways\nBenefits may vary depending on role and location.\nVisit our careers site to read more about the benefits ICON offers.\nInclusion and Accessibility\nICON is an equal opportunity employer. We are committed to building an inclusive and accessible workplace where everyone feels valued and supported.\nIf you require reasonable accommodations during the recruitment process, please let us know or submit a request here.\nAre you a current ICON Employee? Please click here to apply","description_format":"text","description_chars":5693,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Retirement plans"],"hiring_locations":[{"name":"Ireland","iso":"IE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Clinical Trial Services (CRO)"],"lifecycle":[{"event":"open","at":"2026-11-04T01:45:30Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":1,"expected_fill_days":15,"reasons":["conf:1","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-11-04T06:34:25Z"},"pay":null,"html_url":"https://alion.io/job/icon-principal-engineer-ii-linux-team","json_url":"https://alion.io/job/icon-principal-engineer-ii-linux-team.json","meta":{"generated_at":"2026-11-04T12:24:14Z","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":18656,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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":5677},"rest":"https://alion.io/mcp/rest/get_company?id=5677"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ficon-principal-engineer-ii-linux-team"},{"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%2Ficon-principal-engineer-ii-linux-team"},{"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%2Ficon-principal-engineer-ii-linux-team"},{"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/icon-principal-engineer-ii-linux-team\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ficon-principal-engineer-ii-linux-team"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3718492}},{"tool":"search_jobs","arguments":{"company":"iconplc.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3718492},"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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