Senior Site Reliability Engineer

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Senior Site Reliability Engineer – OCI Infrastructure & Enterprise Applications What this job involves As a Senior Site Reliability Engineer on JLL’s Technical Engineering team, you will serve as a trusted technical authority for the Oracle Cloud Infrastructure (OCI) platform that hosts JLL’s enterprise applications, including JD Edwards EnterpriseOne, Peoplesoft, Essbase, Oracle Analytics Cloud, GoAnywhere, ReportsNow, MagicSoft, and BTAP. You will bring deep, hands-on expertise across OCI compute, storage, networking, security, identity, and database services, along with strong automation skills in Terraform and Ansible, to design, build, and operate reliable, secure, and cost-effective infrastructure at global scale. Working alongside Application, Database, Security, Network, and Production Support teams, you will independently solve medium to high complexity infrastructure problems that span cloud, network, identity, and database tiers, and translate business continuity, compliance, and performance needs into clear technical reliability requirements. You will help shape how our ERP platforms evolve on OCI, including Oracle Autonomous Database and Exadata, hybrid connectivity to Azure and AWS, and the application of Oracle-native AI services, including OCI Generative AI, Generative AI Agents, Oracle Digital Assistant, and the AI capabilities of Oracle Autonomous Database, to monitoring, automation, and operational insight. You will also help build the secure foundation for AI agents that interact with enterprise applications, including hosting and securing Model Context Protocol (MCP) services on OCI, in support of JLL’s Accelerate 2030 priorities of platform excellence and outpacing through data and AI. You will lead incident response, take ownership of reliability and security improvements with limited oversight, and act as an informal coach who shares knowledge with less experienced colleagues. This role includes on-call support, primarily covering the Americas, and administrative activities performed over weekends in close collaboration with fellow OCI, database, and application administrators. The PeopleSoft environment is supported by a separate team; this role partners closely with that team on shared OCI infrastructure. What your day-to-day will look like • Design, build, and operate OCI landing zones and workloads, including compute instances and shapes, Secure Desktop, Linux and Windows operating systems, and block, file, and object storage, applying reliability engineering methodologies to every design. • Architect and maintain OCI networking, including VCNs, subnets, Dynamic Routing Gateways, FastConnect circuits, IPsec tunnels, load balancers, private endpoints, and DNS, and ensure resilient hybrid connectivity between OCI, Azure, AWS, and on-premises environments. • Own the security posture of the platform, including Fortigate firewalls, OCI WAF, Okta Access Gateway, OCI Vault keys and secrets, certificate lifecycle management, Bastion hosts, and vulnerability and compliance findings surfaced through Wiz. • Administer identity and access across OCI IAM/IDCS, Okta, and Microsoft Active Directory (both the OCI-hosted domain and JLL corporate AD), including federation, policies, compartments, groups, and dynamic groups. • Support and optimize Oracle Database, Oracle Autonomous Database, Exadata, and SQL Server platforms as they relate to hosted applications, partnering with DBAs on availability, performance, patching, and recovery. • Strengthen observability using Oracle Enterprise Manager, OCI Monitoring, OCI Application Performance Monitoring, and Logging Analytics, correlating infrastructure alerts with application symptoms to reduce time to detect and resolve. • Build and maintain infrastructure-as-code with Terraform and configuration management with Ansible, driving repeatable deployments, drift detection, and reduced operational effort. • Apply Oracle Analytics Cloud, OCI Generative AI, and Oracle Digital Assistant services to monitoring, automation, and operational insight for enterprise application platforms. • Design, deploy, and operate the infrastructure for AI agent and MCP services on OCI, including container or VM hosting, OAuth and identity integration, WAF and rate limiting, private endpoints, secrets management, logging, and session handling for services that front enterprise applications. • Implement AI guardrails and security controls for agents that read from or act on ERP systems, including human-in-the-loop approval for write operations, least-privilege tool scoping, prompt injection mitigation for untrusted application data, and audit logging of agent actions. • Build and evaluate retrieval-augmented generation (RAG) and agentic workflows using OCI Generative AI, Generative AI Agents, Oracle AI Vector Search, and Select AI in Autonomous Database, and partner with application and data teams on grounding, evaluation, and cost control. • Lead incident response through root cause analysis and long-term remediation across cloud, network, identity, database, and application tiers. • Participate in an on-call rotation, primarily covering the Americas, and partner with other OCI and application administrators to plan and support weekend maintenance windows. • Lead medium-sized reliability and migration projects with manageable risks, define and track service level objectives, and recommend best practices to improve operational processes. • Coach less experienced colleagues through troubleshooting and knowledge-sharing sessions, while upholding change management, audit and SOX compliance, and disaster recovery standards. Required qualifications • Ability to work on-call, primarily covering Americas hours, and to support weekend administrative activities as needed. • + years of experience architecting, building, and operating infrastructure in public cloud, with [X]+ years of hands-on Oracle Cloud Infrastructure experience spanning compute, block/file/object storage, and the OCI networking stack (VCN, subnets, DRG, FastConnect, IPsec, load balancers, private endpoints, DNS). • Demonstrated experience with cloud and network security, including next-generation firewalls (Fortigate), web application firewalls (OCI WAF), reverse proxy or access gateway solutions (Okta Access Gateway), bastion architectures, and secrets, key, and certificate management (OCI Vault). • Strong identity and access management experience across OCI IAM/IDCS, Okta, and Microsoft Active Directory, including federation, SSO, MFA, and role-based access design. • Working knowledge of Oracle Database and SQL Server as hosted platforms, including high availability, backup and recovery, and performance fundamentals, with exposure to Oracle Autonomous Database and Exadata. • Proven experience with infrastructure-as-code and configuration management using Terraform and Ansible, and with Linux and Windows server administration and scripting, including Python. • Working knowledge of large language model (LLM) concepts, including prompt design, retrieval-augmented generation, embeddings and vector search, function or tool calling, and agent architectures, with hands-on experience applying at least one cloud GenAI service (OCI Generative AI preferred) to an operational or business use case. • Understanding of AI security and governance fundamentals, including prompt injection, data leakage and exfiltration risks, guardrails, human-in-the-loop controls, and responsible use of enterprise data with AI services. • Experience operating observability tooling such as Oracle Enterprise Manager, OCI Monitoring, OCI APM, and Logging Analytics, and using it to perform root cause analysis across infrastructure, network, and application tiers. • Experience hosting and supporting enterprise applications, ideally JD Edwards EnterpriseOne, Peoplesoft and Essbase on cloud infrastructure, and collaborating with application teams on availability and performance. • Demonstrated ability to solve medium to high complexity problems independently and under pressure. • Strong communication skills, including the ability to explain difficult operational concepts, build consensus, and collaborate with distributed teams. Preferred qualifications • Multi-cloud experience across Azure and AWS, including hybrid connectivity, identity federation, and workload placement decisions. • Hands-on experience with the broader Oracle AI portfolio, including OCI Generative AI Agents, Oracle Digital Assistant, OCI Data Science, OCI AI Services (Language, Speech, Vision, Document Understanding), Oracle AI Vector Search and Select AI in Autonomous Database, and exposure to the Oracle AI Data Platform. • Experience building, hosting, or securing Model Context Protocol (MCP) servers or similar tool-calling integrations that expose enterprise application or database capabilities to AI agents, including authentication (OAuth/OIDC), authorization scoping, rate limiting, and observability. • Familiarity with agent frameworks and LLM gateways (for example LangChain, LlamaIndex, or LiteLLM), model evaluation and testing approaches, and AI observability or tracing tooling. • Exposure to Oracle Analytics Cloud and Essbase, and experience applying GenAI capabilities to infrastructure operations such as log summarization, alert triage, runbook automation, or natural-language operational querying. • Experience supporting adjacent enterprise application platforms such as GoAnywhere managed file transfer, ReportsNow, MagicSoft, and BTAP. • Familiarity with cloud security posture management platforms (Wiz) and DevSecOps or CI/CD practices. • Exposure to disaster recovery configurations on OCI, including cross-region replication and failover mechanics, and their impact on application maintenance windows. • Practical understanding of how OCI compute, storage, and database choices affect cost, enabling informed participation in capacity planning. • Experience supporting a global ERP footprint across multiple regions and time zones, including month-end and financial close periods, and operating within audit and Sarbanes-Oxley (SOX) controls. • Experience applying site reliability engineering practices such as SLOs, error budgets, and blameless postmortems, leading medium-sized projects, and acting as an informal coach or mentor. • OCI, Azure, AWS, Oracle Database, Fortinet, or Okta certifications, with a curiosity for innovation and a willingness to embrace more innovative ways of working. Location: On-site –Raanana, ISR, TEL AVIV, ISR Job Tags: If this job description resonates with you, we encourage you to apply, even if you don’t meet all the requirements. We’re interested in getting to know you and what you bring to the table! At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing. JLL Privacy Notice Jones Lang LaSalle (JLL), together with its subsidiaries and affiliates, is a leading global provider of real estate and investment management services. We take our responsibility to protect the personal information provided to us seriously. 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