Senior Site Reliability Engineer

Job Description On behalf of our client Affinity is seeking a Site Reliability Engineer on a full-time permanent basis. Responsibilities Lead the delivery of infrastructure projects.Plan and perform higher-risk maintenance.Contribute to resolving incidents and participate in an on-call roster.Work with product and software development colleagues to improve the resiliency and reliability of our products.Mentor team members in all aspects of SRE work.Manage your productivity and workload in a work-from-home environmentUse a data-driven approach to identify changes to the product architecture to improve reliability, performance, and availability.Fully understand production environments and the end-to-end delivery process.Identify parts of the system that do not scale and drive solutions for these problem areas.Maintain and improve Service Level Indicators (SLI) that align with availability and performance targets.Build quality into the team's work by encouraging refactoring, testing, and breaking up the team’s work into small, releasable pieces.Promote automation and continuous improvement to reduce operational overhead and improve platform reliability. Qualifications Have good knowledge of Linux and bash or similar.Be versed in the delivery of a SaaS product on AWS, GCP, or Azure.Have strong programming skills (Ruby, Python, Go, etc.).Be competent with Terraform or similar Infrastructure as Code (IaC) tools.Have experience with Docker, Kubernetes, EKS, or similar technologies.Have experience with CI/CD pipelines on Buildkite or similar platforms.Be familiar with building delivery pipelines with Buildkite or similar.Have strong version control skills with Git.Be experienced with increasing monitoring and observability using Datadog or similar tools (New Relic, Splunk, etc.).Demonstrate a strong automation mindset, with a focus on eliminating repetitive tasks through scripting, tooling, and documentation.Enjoy delivering quickly and iterating fast.8+ years of experience in DevOps, Site Reliability Engineering (SRE), or Infrastructure Engineering roles supporting production cloud environments.3+ years of experience in a senior or technical leadership capacity, with demonstrated ownership of critical production systems and mentoring of engineers.Hands-on experience with modern cloud environments (AWS, GCP, or Azure), including deployment, scaling, monitoring, and cost optimization of SaaS applications.Proven experience implementing and managing observability stacks (e.g., Datadog, Prometheus, New Relic, Splunk) and driving improvements to SLIs/SLOs.Experience in incident management, including participation in on-call rotations and leading post-incident reviews with a focus on continuous improvement.AI/LLM upskilling — comfort using AI and agentic tooling (e.g., Claude Code) to accelerate investigation, automation, and delivery.Service mesh (Envoy / Istio) — hands-on experience deploying and operating a service mesh for traffic management, observability, and secure service-to-service communication.NATS — experience running or building on NATS (or comparable messaging/streaming systems) for event-driven and distributed architectures. Affinity Earn Know someone who’s great for this, or any of our open roles? Earn up to $4,000/year for each successful referral through Affinity Earn. You can also earn up to $50,000 for helping us find new clients. Learn about our referral program at https://affinity-group.ca/earn/ or browse our jobs & follow us at https://www.linkedin.com/company/affinity-staffing/jobs/ About Affinity Affinity Group is a technology and business consulting and services company. We believe in creating long term relationships between clients and consultants that foster a mutually beneficial partnership. Affinity is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All employment is decided on the basis of qualifications, merit and business need. For more information on Affinity, please visit www.affinity-group.ca Job Number: 13778