Software Engineer II in London

Who We Are

Samsara (NYSE: IOT) is the pioneer of the Connected Operations—Cloud, a platform that enables organizations that depend on physical operations to harness Internet of Things (IoT) data to develop actionable insights and improve their operations. At Samsara, we help improve the safety, efficiency and sustainability of the physical operations that power our global economy. Representing more than 40% of global GDP, these industries are the infrastructure of our planet, including agriculture, construction, field services, transportation, and manufacturing – and we are excited to help digitally transform their operations at scale.

About the role

We are seeking an experienced Site Reliability Engineer to join our Infrastructure Platform Security team. The team is responsible for the security, compliance and evolution of Samsara’s public cloud infrastructure, paving the path toward secure-by-default configurations and reducing security and compliance friction for our partner product teams.

You should apply if:

• You want to impact the industries that run our world: the software, firmware, and hardware you build will result in real-world impact—helping to keep the lights on, get food into grocery stores, and most importantly, ensure workers return home safely.
• You want to build for scale: With over 2.3 million IoT devices deployed to our global customers, you will work on mature and emerging technologies to drive scalable innovation across industries.
• You are a life‑long learner: We have ambitious goals. Every Samsarian has a growth mindset as we work with a wide range of technologies, challenges, and customers that push us to learn on the go.
• You believe customers are more than a number: You will have the opportunity to participate in customer interviews, collaborate with customer success and product managers, and use metrics to ensure our work translates into better outcomes.
• You are a team player: Working on our engineering teams requires independent effort and collaboration. Motivated by our mission, we’re all racing toward our vision, and we intend to win—together.

In this role you will:

• Design and maintain highly available, resilient and secure infrastructure across Samsara’s public cloud.
• Own infrastructure provisioning using Infrastructure as Code (IaC) to establish reliable “paved paths” for seamless developer self‐service.
• Develop and maintain standardized, secure, and reliable base components like golden images (AMIs/container images) for fault‐tolerant provisioning.
• Drive system stability and service quality by embedding reliability best practices directly into development and deployment pipelines.
• Ensure service availability by participating in a 24/7 on‐call rotation, investigating outages, and contributing to root‐cause analysis/post‐mortems.
• Define SLIs/SLOs and build observability tooling to measure and improve service reliability.
• Develop and maintain monitoring dashboards, metrics pipelines, and alerting configurations.
• Own and lead the technical delivery of engineering projects, ensuring execution meets agreed‐upon timelines.
• Design and scope solutions, evaluate options and make trade‐off decisions to provide accurate effort and complexity recommendations.
• Champion, role‐model, and embed Samsara’s cultural principles (Focus on Customer Success, Build for the Long Term, Adopt a Growth Mindset, Be Inclusive, Win as a Team) as we scale globally and across new offices.

Minimum requirements:

• 5+ years as a DevOps Engineer, Security Engineer, Software Engineer, or Site Reliability Engineer.
• 5+ years hands‑on experience with Unix/Linux.
• 3+ years hands‑on experience with public‑cloud networking engineering.
• 3+ years experience with Identity & Access Management.
• Strong ability to automate through scripting languages such as Python, Bash, Go, or similar.
• Experience with Infrastructure as Code (e.g., Terraform, Ansible, Puppet).
• Experience managing containerized applications using Docker and Kubernetes, with security considerations in mind.
• Experience with AWS services such as EC2, EKS, ECS, ECR, IAM.
• Understanding of security weaknesses, exploits, attacks and mitigations.

An ideal candidate also has:

• Experience with AWS and GCP public‑cloud infrastructure.
• Experience securing cloud networks (e.g., VPCs, ACLs, Security Groups, Network Firewalls, DNSSEC).
• Experience with Security as Code (SAST/ SCA security tools).
• Strong communication skills and desire to collaborate across teams.
• Excellent problem‐solving skills and ability to troubleshoot network and security‐related issues.
• Experience with performance and cost optimization as applied to cloud infrastructure.
• Familiarity with data privacy regulations and compliance.

At Samsara, we welcome everyone regardless of their background. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender, gender identity, sexual orientation, protected veteran status, disability, age, and other characteristics protected by law. We depend on the unique approaches of our team members to help us solve complex problems and want to ensure Samsara is a place where people from all backgrounds can make an impact.

Benefits:

Full‐time employees receive a competitive total compensation package along with employee‐led remote and flexible working, health benefits, and much, much more. Take a look at our Benefits site to learn more.

Accommodations:

Samsara is an inclusive work environment, and we are committed to ensuring equal opportunity in employment for qualified persons with disabilities. Please email or click here if you require any reasonable accommodations throughout the recruiting process.

Flexible Working:

At Samsara, we embrace a flexible working model that caters to the diverse needs of our teams. Our offices are open for those who prefer to work in‐person, and we also support remote work where it aligns with our operational requirements. For certain positions, being close to one of our offices or within a specific geographic area is important to facilitate collaboration, access to resources, or alignment with our service regions. In these cases, the job description will clearly indicate any working location requirements. Our goal is to ensure that all members of our team can contribute effectively, whether they are working on‐site, in a hybrid model, or fully remotely. All offers of employment are contingent upon an individual’s ability to secure and maintain the legal right to work at the company and in the specified work location, if applicable.