{"id":1008,"date":"2026-08-27T09:00:00","date_gmt":"2026-08-27T08:00:00","guid":{"rendered":"https:\/\/www.carefront.co.uk\/apply\/careers\/job\/tier-3-support-infrastructure-engineer\/"},"modified":"2026-08-27T09:00:00","modified_gmt":"2026-08-27T08:00:00","slug":"tier-3-support-infrastructure-engineer","status":"publish","type":"job_listing","link":"https:\/\/www.carefront.co.uk\/apply\/careers\/job\/tier-3-support-infrastructure-engineer\/","title":{"rendered":"Tier 3 Support &#038; Infrastructure Engineer"},"content":{"rendered":"<h4>About the Role<\/h4>\n<p>Tier 3 is the deepest technical tier in the business \u2014 the final escalation point for Tier 2 and the people who keep our registrar and hosting platform running.<\/p>\n<p>This is a hands-on backend and systems engineering role. You\u2019ll work across our EPP integrations with domain registries, our provisioning APIs, and the Linux, DNS and hosting infrastructure that everything runs on.<\/p>\n<p>You\u2019ll resolve the hardest, most systemic customer-impacting issues, and \u2014 just as importantly \u2014 improve the platform so those issues don\u2019t come back. It\u2019s a role for someone who\u2019s equally comfortable debugging a live incident and writing the automation that prevents the next one.<\/p>\n<h4>What You\u2019ll Be Doing<\/h4>\n<ul>\n<li>Act as the final escalation point for complex, systemic or platform-level issues from Tier 2<\/li>\n<li>Build and maintain EPP integrations with domain registries \u2014 provisioning, renewals, transfers and poll-message handling<\/li>\n<li>Develop and support the internal and external APIs and automation behind domain and hosting provisioning<\/li>\n<li>Administer Linux servers and our DNS infrastructure \u2014 authoritative and recursive, including DNSSEC signing and zone automation<\/li>\n<li>Support the wider hosting stack \u2014 web servers, mail, databases and control panels<\/li>\n<li>Lead incident response, perform root-cause analysis and write clear post-incident reviews<\/li>\n<li>Improve observability, monitoring, alerting and capacity planning across the platform<\/li>\n<li>Automate operational tasks and reduce manual toil through scripting and infrastructure-as-code<\/li>\n<li>Work with registries, RDAP\/WHOIS services and upstream providers on protocol-level issues<\/li>\n<li>Uphold security, access control and change management, and support audits<\/li>\n<li>Mentor Tier 1 and Tier 2, and maintain strong engineering documentation<\/li>\n<\/ul>\n<h4>What We\u2019re Looking For<\/h4>\n<h5>Essential<\/h5>\n<ul>\n<li>Strong Linux system administration experience<\/li>\n<li>Solid scripting or programming skills for automation and integrations (e.g. Python, Bash; PHP or Go a plus)<\/li>\n<li>Deep DNS knowledge including DNSSEC, authoritative and recursive resolution, and common software (BIND, PowerDNS or Knot)<\/li>\n<li>A working understanding of the EPP protocol and the registry\/registrar provisioning model<\/li>\n<li>Experience building or consuming REST and\/or XML APIs<\/li>\n<li>Networking fundamentals \u2014 TCP\/IP, TLS, HTTP, SMTP<\/li>\n<li>Incident response and root-cause analysis experience<\/li>\n<li>Clear written communication and the ability to document systems well<\/li>\n<li>Comfortable working in a remote, on-call-capable engineering team<\/li>\n<\/ul>\n<h5>Nice to Have<\/h5>\n<p>You won\u2019t have all of this, but any of the following would stand out:<\/p>\n<ul>\n<li>Hands-on EPP client or registry integration experience (e.g. Verisign, Nominet, CentralNic \/ Identity Digital)<\/li>\n<li>RDAP \/ WHOIS implementation experience<\/li>\n<li>Web hosting stack internals \u2014 cPanel\/WHM, Apache\/Nginx, PHP, MySQL, Exim\/Dovecot<\/li>\n<li>Infrastructure as code (Terraform, Ansible), containers and CI\/CD<\/li>\n<li>Cloud platforms (AWS, GCP or Azure) and monitoring stacks (Prometheus, Grafana)<\/li>\n<li>Databases and confident SQL<\/li>\n<li>Awareness of ICANN and registry policy and compliance requirements<\/li>\n<\/ul>\n<h4>What Great Looks Like<\/h4>\n<p>Great Tier 3 engineering is measured as much by what stops breaking as by what you fix. You\u2019ll be someone who:<\/p>\n<ul>\n<li>Digs to the true root cause and fixes the system, not just the symptom<\/li>\n<li>Automates the repetitive and designs out recurring failure<\/li>\n<li>Stays calm and methodical during incidents and communicates clearly<\/li>\n<li>Writes documentation and runbooks the rest of the team can rely on<\/li>\n<li>Balances long-term platform health with the customer waiting right now<\/li>\n<li>Raises the technical bar for Tier 1 and Tier 2 around them<\/li>\n<\/ul>\n<h4>Working Hours<\/h4>\n<p>This is a full-time, permanent role, normally worked Monday to Friday.<\/p>\n<p>As we run a platform customers depend on around the clock, this role participates in an on-call rota for platform incidents. On-call and any out-of-hours work is compensated in accordance with company policy and local employment requirements, and rota expectations will be made clear during the recruitment process.<\/p>\n<h4>What We Offer<\/h4>\n<p>We want to build a team made up of genuinely exceptional people, and that means offering more than simply a salary. Our proposed benefits package includes:<\/p>\n<ul>\n<li>28 days of paid annual leave every year, plus local public holidays<\/li>\n<li>Your local statutory holiday entitlement where this is greater<\/li>\n<li>Your birthday off, fully paid, every year<\/li>\n<li>Separate paid sick leave, so being unwell doesn\u2019t eat into your holiday allowance<\/li>\n<li>Additional paid wellbeing or personal days<\/li>\n<li>Company-funded healthcare or private medical cover, appropriate to your country<\/li>\n<li>Pension, provident fund or retirement contributions appropriate to your location<\/li>\n<li>All statutory local employment benefits in addition to our company benefits<\/li>\n<li>Company-provided laptop, headset and equipment required to do your job properly<\/li>\n<li>Support towards your home internet or remote-working costs<\/li>\n<li>Comprehensive paid onboarding and technical training<\/li>\n<li>Ongoing training and development, plus an annual learning and professional development budget<\/li>\n<li>Support towards relevant professional or technical certifications<\/li>\n<li>Enhanced parental, compassionate and bereavement leave<\/li>\n<li>Regular salary and career development reviews<\/li>\n<li>A genuinely remote-first working environment<\/li>\n<\/ul>\n<p>Where local legislation provides a greater entitlement than our standard package, the greater local entitlement will always apply.<\/p>\n<h4>Career Development<\/h4>\n<p>This role opens paths into Senior or Lead Engineering, Site Reliability and Platform Engineering, Domain Operations and technical leadership. We\u2019ll support the depth or breadth you want to build.<\/p>\n<h4>A Final Word<\/h4>\n<p>If you like owning hard technical problems end to end, take satisfaction in a platform that just works, and want your fixes to outlast the ticket that prompted them, we\u2019d love to hear from you.<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","meta":{"_promoted":"","_job_location":"Fully Remote (UK or EU)","_application":"https:\/\/www.carefront.co.uk\/apply\/?role=tier-3-support-infrastructure-engineer#apply","_company_name":"CareFront","_company_website":"https:\/\/www.carefront.co.uk","_company_tagline":"","_company_twitter":"","_company_video":"","_filled":0,"_featured":0,"_remote_position":1,"_job_salary":"","_job_salary_currency":"","_job_salary_unit":""},"job-categories":[9],"job-types":[2],"class_list":["post-1008","job_listing","type-job_listing","status-publish","hentry","job-type-full-time"],"_links":{"self":[{"href":"https:\/\/www.carefront.co.uk\/apply\/careers\/wp-json\/wp\/v2\/job-listings\/1008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carefront.co.uk\/apply\/careers\/wp-json\/wp\/v2\/job-listings"}],"about":[{"href":"https:\/\/www.carefront.co.uk\/apply\/careers\/wp-json\/wp\/v2\/types\/job_listing"}],"author":[{"embeddable":true,"href":"https:\/\/www.carefront.co.uk\/apply\/careers\/wp-json\/wp\/v2\/users\/1"}],"wp:attachment":[{"href":"https:\/\/www.carefront.co.uk\/apply\/careers\/wp-json\/wp\/v2\/media?parent=1008"}],"wp:term":[{"taxonomy":"job_listing_category","embeddable":true,"href":"https:\/\/www.carefront.co.uk\/apply\/careers\/wp-json\/wp\/v2\/job-categories?post=1008"},{"taxonomy":"job_listing_type","embeddable":true,"href":"https:\/\/www.carefront.co.uk\/apply\/careers\/wp-json\/wp\/v2\/job-types?post=1008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}