Senior Infrastructure / DevOps Engineer

Lisbon, Portugal

Specialist (5+ Years)

Hybrid

English Required Not Accepting Candidates Living Abroad

OnPremises Infrastructure (Core Focus)
Operate, maintain and evolve onpremises infrastructure, ensuring stability, performance and high availability.
Administer virtualization environments based on Proxmox (KVM), including clusters, capacity planning and HA.
Manage storage systems (SAN/NAS), including performance, redundancy, backup and recovery.
Perform Linux systems administration, including hardening, patching, security and best practices.
Work with networking concepts such as IP networking, VLANs, basic routing and firewalls, in collaboration with network teams when
applicable.
DevOps & Automation
Automate infrastructure provisioning and configuration using Ansible and Infrastructure as Code principles.
Build, maintain and improve CI/CD pipelines for applications and infrastructure components.
Collaborate closely with development teams to improve deployment, reliability and troubleshooting processes.
Reduce manual operational tasks through automation and standardization.
Cloud Operations (Growth & Consolidation Phase)
Operate and support public cloud environments (AWS and/or Azure), primarily using IaaS services.
Work in hybrid environments (onprem + cloud), ensuring integration, security and operational consistency.
Apply cloud best practices related to cost management, security and reliability.
Operate and support Kubernetes workloads, with a focus on daytoday operations, networking, storage and troubleshooting.
Reliability, Operations & OnCall
Ensure high levels of availability, reliability and operational excellence.
Participate actively in a 24x7 oncall rotation (L2 support) for production systems.
Respond to incidents, perform rootcause analysis and define corrective and preventive actions.
Implement and maintain monitoring, logging and metrics solutions (e.g. Prometheus, Grafana).
Collaboration & Documentation
Work closely with engineering and product teams in a multidisciplinary environment.
Create and maintain clear and practical documentation (runbooks, operational guides, handbooks).
Support onboarding and promote operational and infrastructure best practices.
Technical Requirements
7+ years of experience in infrastructure, systems, DevOps or similar roles.
Strong, handson experience with onpremises environments.
Solid experience with Proxmox (KVM) virtualization.
Strong knowledge of Linux systems administration.
Proven experience using Ansible in production environments.
Good understanding of networking fundamentals (IP, routing, firewalls, VLANs).
Strong understanding of storage concepts and highavailability architectures.
Experience with CI/CD tools (GitLab CI, Jenkins or equivalent).
Experience with monitoring and observability stacks.
Scripting skills (Bash, Python or similar).
Experience with database administration (e.g. PostgreSQL, Oracle).
Hands-on experience with container technologies such as Docker
Functional knowledge of Kubernetes, with an operational focus.
Initial to intermediate experience with public cloud platforms (AWS and/or Azure).
Profile & Mindset

Strong operational mindset and sense of ownership.
Comfortable working with critical production systems.
Able to work autonomously and make technical decisions.
Clear interest in growing cloud skills, grounded in strong traditional infrastructure experience.
Practical, resilient and solutionoriented approach.
Strong communication and collaboration skills.
Professional proficiency in English (written and spoken).
Important Notes
Participation in a 24x7 oncall rotation is mandatory for this role.
This is an onpremfirst role with hybrid and cloud responsibilities, not a pure cloudnative position.
The ideal candidate is a senior infrastructure engineer transitioning towards cloud, not someone exclusively cloudfocused.

We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.

What we offer:

A project that matches your skills and ambitions, as well as your preferences for working policies and culture.
A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income.
An empowering and respectful work culture enriched with social and learning events.
A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.

At KWAN, they make sure that I feel comfortable with the client I’m working for and that what I’m doing aligns with my career aspirations.

Luis Caldeira, DevOps @ KWAN

At KWAN, I’m given the space to be myself and do what I love. I have control over the projects I work on, as well as the direction of my career.

Pedro Fonseca, Front End Developer @ KWAN

I see my People Experience Partner as someone who is always available to provide me with motivation and constant feedback, which helps me be sure that I am in the right place.

Josimar dos Reis, Software Developer @ KWAN

I know that I’ve contributed to the growth of a company that truly values a “people first culture”, because my ideas, experiences, and individuality were always appreciated.

João Nascimento, Software Developer (KWAN Alumni)

My two years at KWAN were an incredible experience! From the start, I was welcomed into a warm and collaborative environment where I felt truly supported.

Laís Ortiz, Software Developer @ (KWAN Alumni)

Grab this opportunity, apply now!