Senior Site Reliability Engineer

CircleCI is seeking a Senior Site Reliability Engineer to work closely with our Software Engineers to deliver and manage the high-performance and scalable infrastructure underlying our multi-tenant Cloud offering as well as our Server-installed, on-premises solution. You will not only have the chance to automate and optimize infrastructure through the construction of appropriate tooling, but you will help software engineers through the design phase to optimize their services for scale in our production environment.

The CircleCI SRE team is globally distributed and remote-friendly. We take advantage of multiple timezones to manage a platform for our global customer base.

Working remotely at CircleCI

We’re a distributed company with teammates across the world. We can support you working remotely anywhere in Ireland, the UK or Germany.

What will make you successful:

Experience managing a container-based microservice architecture, including orchestration, service-discovery, monitoring, and debugging

Understanding of standard networking protocols and components such as: TCP/IP, HTTP, DNS, ICMP, the OSI Model, Subnetting, and Load Balancing

In-depth knowledge of operating systems (processes, threads, IPC, concurrency, locks, mutexes, semaphores, etc.)

Proficiency in one or more of: Go, Java, Python, C or C++

Comprehensive knowledge of the internal workings of at least one of: Postgres, Mongo, Redis

Systematic problem solving approach, coupled with a strong sense of ownership and drive

Track record of working cooperatively with software engineering teams

Focus on security in the delivery of all levels of a system

Passion for modern software development and operation, including agile, CI/CD, and infrastructure-as-code

Desire to learn and grow

4+ years of experience

What you will do:

Design and deliver solutions to improve the availability, scalability, latency, and efficiency of CircleCI’s services

Engage in service capacity planning and demand forecasting, anticipating performance bottlenecks

Diagnose and resolve production issues in conjunction with software engineering teams

Implement shared infrastructure used by all services within the CircleCI platform

Support and advise software engineering teams in the design of scalable services

Build and maintain tools for deployment, monitoring, and debugging

Plan and execute disaster recovery drills

Participate in rotating on-call duties, including incident management

CircleCI Engineering Competency Matrix

This role equals level E3 on our Engineering Competency Matrix, our internal career growth system for engineers. These are the minimum expectations for this position, but we are always willing to discuss bringing people on at more senior positions when appropriate.

About CircleCI

CircleCI is the best platform for software teams looking to rapidly build quality projects, at scale. Our intelligent continuous integration and delivery tools are simple yet powerful. Our aim is to provide the wisdom of a connected development ecosystem to every team member making technology decisions.

We run 12M+ builds a month on our platform for companies like Spotify, Kickstarter, Sony, and Coinbase. Over 25,000 organizations and 300,000 developers actively build, test, and deploy on CircleCI.  We’ve raised $59.5M in venture capital from Industry Ventures, Top Tier Capital, Scale Venture Partners, DFJ, Harrison Metal Capital, and Baseline Ventures.

At CircleCI you will be part of a company that values trust, respect, diversity, and inclusion. We are proud to foster a workplace free from discrimination. We strongly believe that diversity of experience, perspectives, and background will lead to a better environment for our employees and a better product for our users. We carefully consider every applicant who takes the time to apply.

We are a globally distributed team working towards the common goal of being the standard bearer for continuous integration and deployment software. We are looking for people who are interested in helping us shape software engineering best practices for the industry as a whole.

CircleCI is proud to be an Equal Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law.