Site Reliability Engineer (SRE)

We are growing. And we are looking for talented people.

At Decskill, we believe that technological excellence is driven by human talent.

We are an IT consulting company with more than 10 years of consolidated experience in the market, focused on building long-term relationships with both our clients and our people. Today, we are a community of over 800 professionals, working from Lisbon, Porto, and Madrid, contributing to impactful technology initiatives.

As part of the Astek Group, we combine a strong local culture with a global presence, being active in around 23 countries across 4 continents. This allows us to offer an international context, diverse challenges, and long-term career opportunities, while staying close to our teams.

We are looking for an experienced Site Reliability Engineer (SRE)!

Role Overview

This is a full-time, fully remote position focused on ensuring the reliability, scalability, and efficiency of production infrastructure.

You will join a team of Backend and Systems Engineers responsible for infrastructure, core services, data pipelines, and observability platforms. You will help deliver production-grade services with demanding performance and cost-efficiency requirements, while ensuring proper documentation, testing, and Application Performance Monitoring (APM) metrics.

You will contribute at both strategic and execution levels, applying your understanding of complex systems to demanding production environments. You will be encouraged to challenge existing approaches, identify improvement opportunities, and find more effective ways of working.

The systems process billions of social media data points across more than 50 markets, handle millions of API requests per day, and support a platform that clients depend on around the clock.

Responsibilities

• Own and evolve the observability stack (LGTM), from alert tuning and dashboards to Service Level Objective (SLO) definition.
• Maintain and improve CI/CD pipelines using GitLab CI and deployment processes across Kubernetes clusters.
• Ensure platform scalability and cost-efficiency as data volumes and client workloads continue to grow.
• Promote Site Reliability Engineering best practices across the Engineering team, including SLOs, error budgets, and runbooks.
• Contribute to the reliability, performance, and availability of complex production systems.
• Identify opportunities to improve infrastructure automation, observability, and operational efficiency.

Requirements

• More than 5 years of professional experience in Site Reliability Engineering (SRE), DevOps, or infrastructure engineering.
• Strong hands-on experience with Kubernetes (AKS preferred), Helm, Flux, Docker, and Ansible in production environments.
• Experience with Microsoft Azure, including managed services such as AKS, Azure Storage, Service Bus, MySQL, PostgreSQL, and Cosmos DB.
• Proficiency in GitLab CI/CD and GitOps principles.
• Hands-on experience with Terraform.
• Experience with observability stacks, specifically Grafana, Loki, Tempo, Mimir, and Prometheus, or equivalent technologies within the LGTM stack.
• Comfortable working with SRE principles, including SLOs, error budgets, incident management, and on-call processes.
• Must be a fiscal resident of Portugal, regardless of nationality.
• Strong understanding of complex production systems, infrastructure reliability, scalability, and performance optimisation.
• Ability to take ownership, challenge existing approaches, and identify opportunities to improve system reliability and efficiency.

Nice to have

• Knowledge of configuring and managing SQL and NoSQL databases, including MongoDB for large data volumes, as well as search engines such as OpenSearch or Elasticsearch.
• Familiarity with event streaming and message queues, including Azure Service Bus, Kafka, or RabbitMQ.
• Experience with cloud cost optimisation, including identifying waste, rightsizing resources, and reporting on infrastructure expenditure.
• Familiarity with DevSecOps practices, including vulnerability scanning in CI/CD pipelines, secret management, and security hardening.
• Experience with Python, particularly reading and understanding service code in FastAPI or similar frameworks. You will not be expected to develop new features, but you should be able to instrument and debug services.

Are you looking for an environment that values curiosity and commitment? Here, your contribution has real impact and individual growth is taken seriously.

Find with us the right opportunity to grow!

What you can expect from us

• Long-term projects with national and international context.
• Opportunities to grow technically and professionally.
• A people-first culture, focused on transparency and trust.
• Teams that value ownership, collaboration, and stability.

If you’re interested in this job, please send your CV to cesaltina.abreu@decskill.com with reference “CA/SRE”.

Your next challenge might start here.

Join us! 😊

Decskill is committed to equality and non-discrimination with all our talents. We recruit and promote talent based on diversity and inclusion, regardless of age, gender, ethnicity, race, nationality, or any other form of discrimination incompatible with the dignity of the human being.