Senior Site Reliability Engineer

Menlo Ventures; United Kingdom; On-site; GBP 119,000 - 142,000; Full time

Job summary

A leading company in SaaS security is seeking a DevOps/SRE professional to support, maintain, and optimize their platform. The role involves collaboration with engineering teams, enhancing CI/CD processes, and addressing scalability challenges. Candidates should have over 4 years of relevant experience, a background in Computer Science, and proficiency in Kubernetes and CI/CD tools.

Benefits

Competitive compensation with equity and 401k

Comprehensive healthcare with dental and vision coverage

Flexible paid time off and paid holiday time off

12 weeks of new parent or family leave

Personal and professional development resources

Qualifications

• 4+ years of experience in a DevOps or SRE role supporting SaaS services.
• Strong programming experience in Golang or Python preferred.
• Deep understanding of autoscaling and cloud service optimization.

Responsibilities

• Support and maintain the service quality of our customer-facing SaaS security platform.
• Address complex challenges related to scalability and reliability.
• Participate in the on-call rotation providing 24/7 support.

Skills

Kubernetes

microservices architecture

CI/CD

cost efficiency

debugging

Education

Bachelor's degree in Computer Science

Tools

GitLab CI/CD

Helm

AWS

GCP

Prometheus

Grafana

Job description

Founded in 2017, Obsidian Security was created to close a critical gap: securing the SaaS applications where modern business happens—platforms like Microsoft 365, Salesforce, and hundreds more.

Backed by top investors including Greylock, Norwest Venture Partners, and IVP, we’ve built a complete SaaS security platform to reduce risk, detect and respond to threats, and prevent breaches at the source. Our team includes leaders who helped define the categories of endpoint and identity security at CrowdStrike, Okta, Cylance, and Carbon Black.

Now, we’re transforming how SaaS is secured—in the era of agentic AI.

Today, Obsidian is trusted by global enterprises like Snowflake, T-Mobile, and Pure Storage. We protect more than 200 organizations across North America, Europe, the Middle East, Southeast Asia, Australia, and New Zealand—including many of the world’s largest Fortune 1000 and Global 2000 companies.

With strong global momentum, a growing partner ecosystem including SentinelOne, Databricks, and Google Cloud, and a major fundraise on the horizon, we’re scaling quickly toward long-term growth and IPO readiness. Join us as we define the future of SaaS security!

About the DevOps / SRE Team

The DevOps/SRE team at Obsidian ensures that engineering excellence translates into stable, scalable, and high-performing production systems. We work closely with Engineering, Quality Engineering, and Customer Support to deliver end-to-end services that bring code to life and maintain our world-class SaaS security platform.

What You’ll Do

• Support and maintain the service quality of our customer-facing SaaS security platform
• Address complex challenges around scalability, reliability, observability, and cost efficiency
• Collaborate with Engineering teams to maintain and enhance Helm charts, application deployment, monitoring and CI/CD pipelines
• Embed into the engineering team so that you understand the application deeply.
• Define service verification strategies and implement them as part of the CI/CD process to meet SLAs
• Improve developer experience by optimizing CI/CD workflows and performance
• Participate in the on-call rotation, providing 24/7 support in coordination with our global SRE team
• Monitor, debug, and optimize production infrastructure and services on AWS/GCP

What We’re Looking For

• 4+ years of experience in a DevOps or SRE role supporting SaaS services on GCP and/or AWS
• Bachelor's degree in Computer Science or related field
• Strong proficiency in Kubernetes, microservices architecture, Helm, GitLab CI/CD, and ArgoCD, Prometheus, Grafana.
• Programming experience in at least one language; Golang or Python preferred
• Deep understanding of autoscaling, version upgrades, and cloud service optimization
• Bonus if you're familiar with technologies like Kafka, Elasticsearch, PostgreSQL, ScyllaDB, Databricks, Dagster, Sentry, Kong

Employee Benefits

Our competitive benefits packages are designed to support our employees' well-being, both at work and at home. Our US based employees enjoy:

• Competitive compensation with equity and 401k
• Comprehensive healthcare with dental and vision coverage
• Flexible paid time off and paid holiday time off
• 12 weeks of new parent or family leave
• Personal and professional development resources

For more details on our US benefits, or for information on our international benefits, please see here.

Pay Transparancy

Please note that the base pay range is a guideline and for candidates who receive an offer, the base pay will vary based on factors such as work location, as well as the knowledge, skills and experience of the candidate. In addition to a competitive base salary, this position is eligible for equity awards and may be eligible for incentive compensation based on factors such as experience, skills, and location.

At Obsidian, we are proud to be an equal-opportunity employer. We value diversity and hire for talent, passion, and compassion. In compliance with federal law, all persons hired will be required to submit satisfactory proof of identity and legal authorization. If you have a need that requires accommodation, please contact [e-mail]

Information collected and processed as part of any job applications you choose to submit is subject to Obsidian’s Applicant Privacy Policy.

Base Salary Range

£119,000—£142,000 GBP