Senior Site Reliability Engineer

"Conquering cancer through AI" Lunit, a portmanteau of ‘Learning unit,' is a medical AI software company devoted to providing AI-powered total cancer care. Our AI solutions help discover cancer and predict cancer treatment outcomes, achieving timely and individually-tailored cancer treatment. 🗨️ About The Team Lunit's Software Engineering (hereafter, "SE") department develops the Lunit INSIGHT product. Within the SE department, the Core Product Engineering team performs the Backend/Application development needed to productize INSIGHT AI models. We translate product requirements into development requirements and build Software as a Medical Device (SaMD) that complies with medical device guidelinesOur team's core goal is to ensure the INSIGHT product has optimized performance and reliability so it can operate across diverse countries and deployment environments 🗨️ About The Position The Site Reliability Engineer role sits between development and operations, improving reliability, observability, automation, and operational systems so the INSIGHT product can run stablyRather than simply performing operational tasks, you will discover recurring problems and operational inefficiencies in production, analyze their root causes, and translate the findings into automation, improved observability, and improved operational processesYou will collaborate with Lunit International's SRE team, understand differing operational environments and processes, and connect and align the global operating system with the domestic product development environment 🚩 Roles & Responsibilities You will design and improve the reliability, observability, deployment automation, and cloud infrastructure operations of the Lunit INSIGHT product to ensure it runs stably. This role is not limited to performing predefined operational tasks. You will identify gaps in the team's current SRE capabilities and operational systems, then define and drive the improvements needed. Improve the stability, availability, performance, and operational quality of the Lunit INSIGHT product and related servicesDesign and enhance cloud infrastructure, deployment, monitoring, and operational automation systemsAnalyze cloud resource usage and cost, and continuously drive cost optimization while considering stability and performanceDiagnose, recover from, and perform root-cause analysis on incidents, and prevent recurrence through monitoring, alerting, runbooks, and automationReliably manage and improve operational configurations and security elements such as per-environment/per-customer settings, certificates, secrets, and access permissionsUnderstand the product domain and collaborate with development teams to build reliability in from the design and development stagesCollaborate in English with Lunit International's SRE team, understanding and aligning differing operational environments and processesBuild an on-call and incident-response system for 24/7 service operations, and participate in the actual on-call rotation to handle production incidents. As the team grows, evolve and lead a sustainable on-call operating model Requirements 🎯 Requirements 5+ years of experience in SRE, DevOps, Platform Engineering, or production infrastructure operationsExperience directly designing and operating Azure-based production environmentsHands-on experience with Linux, networking, and containersExperience designing or improving CI/CD, Infrastructure as Code, or operational automation systemsExperience analyzing production incidents based on monitoring, and performing recovery and recurrence-prevention activitiesExperience collaborating with product and development teams to balance stability and development velocityAbility to discuss and coordinate technical decisions fluently in English with overseas engineers and colleagues from diverse roles 🏅 Preferred Experiences Experience establishing and improving the technical direction or operating systems of the SRE or Platform domainExperience identifying the causes of recurring incidents or operational inefficiencies and leading structural improvements such as recurrence prevention or automationExperience building or operating SRE practices such as on-call, incident management, postmortems, and SLO/SLAExperience with Infrastructure as Code (Terraform, Bicep, ARM templates) and operational automation using Python, Bash, etcExperience operating container and deployment environments such as Kubernetes, GitHub Actions, and Azure DevOpsExperience using observability tools such as Azure Monitor, Application Insights, and Log Analytics, and incident-response/operations tools such as PagerDuty and ServiceNow 📌 Tech Stack Scripting/Language: Python, BashCloud/Infrastructure: Azure, Linux, Docker, Kubernetes, Terraform, BicepCI/CD: GitHub Actions, Azure DevOps PipelinesObservability/Operations: Azure Monitor, Application Insights, Log Analytics, PagerDuty, ServiceNow, Custom DashboardsProduct Environment: Python, Go, FastAPI, PostgreSQL, Redis, RabbitMQCollaboration: Jira, Confluence, Slack, GitHub 📝How To Apply CV/Resume in English, free formatPlease note that an English resume is required for this position본 포지션은 영문 이력서 제출이 필수입니다 🏃‍♀️ Hiring Process Document Screening → Assignment → 1st Competency-based Interview (On-site) → 2nd Competency-based Interview (Online) → Culture-fit Interview (On-site) → OnboardingInterviews will be conducted in English, and detailed instructions for the Assignment will be provided separately. After the final interview, we may proceed with reference checks if needed 🤝 Work Conditions and Environment Work type: Full-time (3-month probation)Work location : Lunit HQ(5F, 374, Gangnam-daero, Gangnam-gu, Seoul)Salary: After negotiation 🎸 ETC If you misrepresent your experience or education or provide false or fraudulent information in or with your application, it may be grounds for cancellation of the employmentLunit is committed in providing the preferential processing to those eligible for employment protection (national merits and people with disabilities) relevant to related laws and regulations Benefits 🌻 Benefits & Perks The office is at a very convenient location, just a minute away from Gangnam Station Exit 3Meal Allowance is provided (up to 12,000 KRW per meal) when working at the officeLatest computer models, such as Macs and 4K monitors are provided and can be renewed every three yearsSeminar registration fees and book purchases are coveredRegular in-house AI and medical seminars are heldIn-house English lessons (aka Luniversal) are provided for English developmentAccess to high-quality AI learning resources & deep learning DevOps systemUp to 1.2 million KRW worth of benefits points can be claimed annuallyHoliday Allowances are provided in the form of gifts or vouchers for Korean National holidays, Seollal and ChuseokCongratulatory and Condolence allowances, along with paid time off are providedAnnual medical checkups and employee accident insurance are provided