Site Reliability Engineer: Scale SaaS & Infra (Remote)

Centric Software; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive salary

Corporate healthcare insurance plan (P

Remote or Office based

25 days paid leave yearly

Therapy sessions via EAP

Job summary

Centric Software is seeking a Site Reliability Engineer to support its SaaS Shoppingfeed product. You will work closely with software developers, infrastructure engineers, security, and QA teams to ensure reliability, performance, and scale across the hosting stack.

You will own deployment and upgrade processes, participate in on-call rotations, and help drive improvements in both product and infrastructure.

Qualifications

• 2+ years proven experience with Linux CLI.
• 2+ years proven experience with Docker or other container technology.
• Strong hands-on experience with PHP applications and their runtime (php-fpm).
• 5+ years proven experience with Git.
• Knowledge across Linux Kernel, Load Balancing, PHP, AWS S3, containers, MySQL/MariaDB, Elasticsearch.
• Proficient in English (B2).

Responsibilities

• Diagnose and resolve application-level reliability and performance issues across the pull request path (nginx -> php-fpm -> application -> database/cache).
• Tune and scale the web-serving layer under production load and manage php-fpm pools, nginx timeouts, and capacity planning.
• Configure and troubleshoot nginx as a reverse proxy/web server (timeouts, buffering, upstream keepalive, 502/504s).
• Diagnose and resolve performance and scaling problems under load (latency, pool saturation).
• Develop, maintain, and support Docker-based workloads.
• Own the product deployment and upgrade process end to end.
• Support and troubleshoot running customer-facing services.
• Collaborate with product teams 50% of time to define and roll out improvements.
• Improve reliability and infrastructure together with the team.
• Define reliability metrics and ensure ongoing monitoring across systems.
• Participate in on-call and on-duty rotations.

Skills

Linux CLI

Docker

PHP (php-fpm)

Git

AWS S3

Elasticsearch

MySQL/MariaDB

Kubernetes

CI/CD

Datadog

Prometheus/Grafana

Kibana/Elasticsearch

Terraform

RabbitMQ

Tools

Kubernetes

Terraform

RabbitMQ

Datadog

Job description

Centric Software is seeking a Site Reliability Engineer to support its SaaS Shoppingfeed product. You will work closely with software developers, infrastructure engineers, security, and QA teams to ensure reliability, performance, and scale across the hosting stack.

You will own deployment and upgrade processes, participate in on-call rotations, and help drive improvements in both product and infrastructure.