Site Reliability Engineer (Sre) (Hybrid)

iTRTech Group; Porto; Hybrid; EUR 25,000 - 28,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

iTRTech Group is seeking a Site Reliability Engineer to enhance availability, performance, and resilience of cloud-native platforms and customer-facing services. The role blends development and operations across teams to embed reliability throughout the lifecycle.

The position is mid-level with 3+ years experience, based in Porto, hybrid with 2 days per week in the office, and fluent English is required.

Qualifications

• 3+ years in SRE, DevOps, or related fields.
• Strong understanding of SRE, production ops, and high-availability systems including on-call support.
• Experience with Linux, Docker and Kubernetes, plus networking and distributed systems.
• Hands-on observability with Prometheus, Grafana, ELK, or Splunk.
• Experience with CI/CD and automation (GitHub Actions, Azure DevOps).
• Familiarity with Terraform and Ansible.
• Development experience with Node.js, NestJS, React, and TypeScript including REST APIs.
• Experience with incident, problem, and change management and Agile practices (Scrum/Kanban).

Responsibilities

• Improve platform availability, performance, reliability, and resilience.
• Implement end-to-end observability through metrics, logs, and traces.
• Define and manage SLOs, SLIs, and SLAs with product teams.
• Investigate bottlenecks, troubleshoot incidents, and identify instability sources.
• Automate operational processes and embed reliability in the SDLC.
• Collaborate with Development, Product, Architecture, Security, and Data teams.

Skills

SRE principles

production operations

high-availability systems

on-call support

Linux

Docker

Kubernetes

networking

distributed systems

Prometheus

Grafana

ELK

Splunk

CI/CD

GitHub Actions

Azure DevOps

Terraform

Ansible

Node.js

NestJS

React

TypeScript

REST APIs

Incident management

Problem management

Change management

Tools

Docker

Kubernetes

Prometheus

Grafana

ELK

Splunk

GitHub Actions

Azure DevOps

Terraform

Ansible

Node.js

NestJS

React

TypeScript

Job description

SITE RELIABILITY ENGINEER (SRE) (HYBRID PORTO)

Portuguese company hires for hybrid position

Location: Porto, Portugal

Only candidates already based in Portugal will be considered

Work Model: Hybrid — 2 days per week in the office

Language Requirements: Fluent English required

Seniority: Mid-level (3+ years)

Rate Between €2200 - 2500 RV or unipessoal (gross value)

About the Opportunity

We are looking for a Site Reliability Engineer to improve the availability, performance, and resilience of cloud-native platforms and customer-facing services. You will combine software engineering and operations, working across teams to embed reliability throughout the development lifecycle.

Responsibilities

• Improve platform availability, performance, reliability, and resilience.
• Implement end-to-end observability through metrics, logs, and traces.
• Define and manage SLOs, SLIs, and SLAs with product teams.
• Investigate bottlenecks, troubleshoot incidents, and identify sources of instability.
• Automate operational processes and integrate reliability into the SDLC.
• Collaborate with Development, Product, Architecture, Security, and Data teams on operational standards.

Requirements

• 3+ years in SRE, Systems Engineering, Operations, DevOps, or Fullstack/Software Development.
• Strong understanding of SRE principles, production operations, and high-availability systems, including on-call support.
• Experience with Linux, Docker, and Kubernetes, plus networking and distributed systems.
• Hands‑on experience with observability tools such as Prometheus, Grafana, ELK, and Splunk.
• Experience with CI/CD and automation, including GitHub Actions and Azure DevOps.
• Familiarity with Terraform and Ansible.
• Development experience with Node.js, NestJS, React, and TypeScript, including REST API design and integration.
• Experience with incident, problem, and change management processes, and Agile practices using Scrum or Kanban.

Preferred: AWS, Azure, or Google Cloud Associate certifications; Kubernetes or Infrastructure as Code certifications.

Ideal Candidate Profile

An analytical and proactive engineer who combines development skills with production troubleshooting experience. Able to work autonomously, communicate clearly with technical and business stakeholders, and collaborate on continuous reliability improvements.

5 Questions for Candidates

1. Do you have at least 3 years of relevant experience in SRE, operations, DevOps, or software development?
2. Have you implemented observability and defined SLOs, SLIs, or SLAs?
3. What experience do you have with Linux, Kubernetes, CI/CD, and Infrastructure as Code?
4. Have you developed applications using Node.js, NestJS, React, and TypeScript?
5. Are you fluent in English, comfortable with on-call support, and available to work on-site in Porto 2 days per week?

Keywords

SRE, Site Reliability Engineering, Observability, SLO, SLI, SLA, Linux, Docker, Kubernetes, Prometheus, Grafana, ELK, Splunk, CI/CD, GitHub Actions, Azure DevOps, Terraform, Ansible, Node.js, NestJS, React, TypeScript, REST APIs, Incident Management.