Senior Site Reliability Engineer

Ciklum is looking for a Senior Site Reliability Engineer to join our team full-time in Ukraine. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Senior Site Reliability Engineer, become a part of the R&D team. In this role, you'll be a key contributor to our high-performance SaaS Cloud Platform. As a Senior Site Reliability Engineer, you will design and automate scalable infrastructure with infrastructure-as-code, implement and tune monitoring and observability systems to meet defined SLIs and SLOs, lead on-call incident response and post-mortem reviews to continuously improve system resilience, collaborate with development teams on performance optimization and capacity planning, and drive the automation of routine operational tasks to minimize toil and maximize uptime. Join our innovative, high-performing team, where the convergence of reliable cloud infrastructure and advanced data processes drives our success in a fast-paced, agile environment. Responsibilities: You’ll develop, improve, and maintain Guardicore's Cyber Security SaaS cloud platform

Lead problem-solving efforts for the entire technology stack in collaboration with other teams in the R&D

Establish scalable, efficient, automated processes for large-scale data analyses

Work closely with other R&D to develop a strategy for long-term data platform architecture

Practice infrastructure as a code (IaC) and GitOps using technologies like Terraform and ArgoCD

Collaborate with Guardicore's development and research groups to constantly improve our platform and infrastructure

Participate in the on-call rotation supporting the applications and infrastructure

Developed and evolved our tooling, logging, monitoring, and alerting mechanisms to increase observability and transparency

Requirements: Extensive experience with containerization and orchestration technologies (e.g., Docker, Kubernetes)

Excellent problem-solving skills and ability to think critically about complex technical challenges and optimizing production systems

Experience in managing and troubleshooting Linux systems

experience with observability systems such as Datadog/Splunk/New Relic/Grafana, or similar

Experience in Shell scripting and/or high-level Programming like Python and Go

Experience working with cloud environments like GCP, Linode, AWS, and Azure

Experience in a SaaS environment managing large-scale data sets - Advantage

Excellent verbal and written English communication and presentation skills

What’s in it for you? Strong community: Work alongside top professionals in a friendly, open-door environment

Growth focus: Take on large-scale projects with a global impact and expand your expertise

Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications

Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies

Flexibility: Enjoy radical flexibility – work remotely or from an office, your choice

Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. As one of Ukraine’s largest IT companies and a top employer recognized by Forbes, we’ve spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing their unique skills and perspectives they bring to shaping the future. Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum. Originally posted on Himalayas