Site Reliability Engineer
The Calyx Institute is seeking applications for a skilled and motivated Site Reliability Engineer (SRE) - Email to join our Engineering Team. This SRE role will be primarily responsible for building and maintaining Calyx’s email infrastructure, functioning as both developer and product owner of both internal and membership platform transactional email services. This position will play a key role in ensuring that email is safe, reliable and secure. This SRE role will report to the Senior SRE, and regularly coordinate with other Calyx team members in Engineering and across other program areas.
Calyx values a diverse range of experiences and are open to candidates who may not meet all listed requirements but have the potential to thrive in this role.
Key responsibilities and required skills for this role include, but are not limited to:
Experience (or interest in learning) Email server building, maintenance, design. Particularly with containerized mail solutions like stalwart (https://stalw.art/)
Git: functional knowledge of forking, branching, merging, reviewing, and rebasing
Ansible: understanding and experience with the concept of infrastructure as code, building/deploying containers and services using ansible
SSH, BASH, LINUX/UNIX, L2-L4 Networking, FOSS tools/solutions, CLI expertise
Containers: experience/interest in CNCF projects (RKE2, Harvester, Traefik, etc.)
RAS-based (Reliability, Availability and Serviceability) approach to design, deployment, and maintenance of infrastructure
Comfortable with stand-up review of written code and justification/critique of methods
Participate/engage in continuous refactoring and addressing technical debt
Four-year degree (or equivalent) in an operations or technical field (operations management, engineering, maths, sciences, etc.)
Graduate degrees and professional certifications are a plus
Preferred Skills and Qualifications
Designing and building applications for container-native deployment strategies
CI/CD: Design and maintenance of a CI/CD pipeline (using Jenkins, Zuul, etc.)
Experience with deployments on tier-1 public clouds (i.e. GCP, AWS, Azure, etc.), demonstrating a "best practices" approach
Experience building and deploying container registries
Hands-on experience with enterprise hardware (metal servers, racking, switches, etc.)
Container orchestration: Docker, Kubernetes, Traefik, Cert-Manager, Rancher etc.
Debian: experience with Debian or another apt-based Linux distribution
RedHat: experience with RHEL or another rpm-based Linux distribution
Networking: configuring switches (Juniper|CumulusLinux), network optimization, segmentation, BGP routing, DDoS mitigation, and associated IaaS tools, etc.
Logging: matomo, ELK, Prometheus, etc.
Applications: Nextcloud, Zammad, Tor, NGINX, mailservers, gitea or gitlab, SnipeIT
Communications: Signal, Mattermost, XMPP, etc.
Organized with excellent attention to detail
General knowledge of Internet technologies and security tools
3+ years professional experience in similar roles
Ability to communicate in spoken and written English
Ability to work both independently and as part of a team
Willingness to take ownership of work responsibilities
Details & To Apply
This is a full-time, salaried, exempt, remote position, requiring work authorization in the U.S. Calyx operates in the following states: Washington, Virginia, Massachusetts, New York or Florida. Preference will be given to candidates residing in the states where Calyx operates, and occasional travel to Seattle, WA will be required. The salary range is $125,000 - $135,000, commensurate with experience and qualifications. Calyx offers health, vision, and dental insurance, HRA and Transportation FSA options, unlimited vacation, and 401k retirement plan options with up to 10% employer matching contribution. Additionally, Calyx operates on a four-day work week. This position is included in a union-represented collective bargaining unit (CWA Local 1101), and specific employment terms and conditions are subject to collective bargaining.
To apply, submit your required application materials via the link to Greenhouse below. No applications submitted without a cover letter or submitted via email will be considered. Applications will be reviewed on a rolling basis until the deadline.
Required materials:
1 page, relevant Cover Letter in PDF format
1-2 page CV/resumé in PDF format
Three professional references with contact information (we will not contact references without informing you first)
Application Deadline: June 20, 2025
Start Date: on or around August 1, 2025
Apply Now
Calyx values a diverse range of experiences and are open to candidates who may not meet all listed requirements but have the potential to thrive in this role.
Key responsibilities and required skills for this role include, but are not limited to:
Experience (or interest in learning) Email server building, maintenance, design. Particularly with containerized mail solutions like stalwart (https://stalw.art/)
Git: functional knowledge of forking, branching, merging, reviewing, and rebasing
Ansible: understanding and experience with the concept of infrastructure as code, building/deploying containers and services using ansible
SSH, BASH, LINUX/UNIX, L2-L4 Networking, FOSS tools/solutions, CLI expertise
Containers: experience/interest in CNCF projects (RKE2, Harvester, Traefik, etc.)
RAS-based (Reliability, Availability and Serviceability) approach to design, deployment, and maintenance of infrastructure
Comfortable with stand-up review of written code and justification/critique of methods
Participate/engage in continuous refactoring and addressing technical debt
Four-year degree (or equivalent) in an operations or technical field (operations management, engineering, maths, sciences, etc.)
Graduate degrees and professional certifications are a plus
Preferred Skills and Qualifications
Designing and building applications for container-native deployment strategies
CI/CD: Design and maintenance of a CI/CD pipeline (using Jenkins, Zuul, etc.)
Experience with deployments on tier-1 public clouds (i.e. GCP, AWS, Azure, etc.), demonstrating a "best practices" approach
Experience building and deploying container registries
Hands-on experience with enterprise hardware (metal servers, racking, switches, etc.)
Container orchestration: Docker, Kubernetes, Traefik, Cert-Manager, Rancher etc.
Debian: experience with Debian or another apt-based Linux distribution
RedHat: experience with RHEL or another rpm-based Linux distribution
Networking: configuring switches (Juniper|CumulusLinux), network optimization, segmentation, BGP routing, DDoS mitigation, and associated IaaS tools, etc.
Logging: matomo, ELK, Prometheus, etc.
Applications: Nextcloud, Zammad, Tor, NGINX, mailservers, gitea or gitlab, SnipeIT
Communications: Signal, Mattermost, XMPP, etc.
Organized with excellent attention to detail
General knowledge of Internet technologies and security tools
3+ years professional experience in similar roles
Ability to communicate in spoken and written English
Ability to work both independently and as part of a team
Willingness to take ownership of work responsibilities
Details & To Apply
This is a full-time, salaried, exempt, remote position, requiring work authorization in the U.S. Calyx operates in the following states: Washington, Virginia, Massachusetts, New York or Florida. Preference will be given to candidates residing in the states where Calyx operates, and occasional travel to Seattle, WA will be required. The salary range is $125,000 - $135,000, commensurate with experience and qualifications. Calyx offers health, vision, and dental insurance, HRA and Transportation FSA options, unlimited vacation, and 401k retirement plan options with up to 10% employer matching contribution. Additionally, Calyx operates on a four-day work week. This position is included in a union-represented collective bargaining unit (CWA Local 1101), and specific employment terms and conditions are subject to collective bargaining.
To apply, submit your required application materials via the link to Greenhouse below. No applications submitted without a cover letter or submitted via email will be considered. Applications will be reviewed on a rolling basis until the deadline.
Required materials:
1 page, relevant Cover Letter in PDF format
1-2 page CV/resumé in PDF format
Three professional references with contact information (we will not contact references without informing you first)
Application Deadline: June 20, 2025
Start Date: on or around August 1, 2025
Apply Now