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Noesis
Junior Security EngineerNoesis • Lisboa, Portugal
Junior Security Engineer

Junior Security Engineer

Noesis • Lisboa, Portugal
Há 15 dias
Tipo de trabalho
  • Quick Apply
Descrição do cargo

Noesis is looking for a Junior Security & Infrastructure Engineer to join our technical team (security engineering) to work in one of our offices (Lisbon, Porto, Coimbra, Guarda, Covilhã) with the following profile:

Main Tasks and Responsibilities:

Security & Infrastructure Operations

  • Support the operation, administration and troubleshooting of Windows and Linux systems and enterprise infrastructure
  • Perform structured troubleshooting, root-cause analysis and support incident investigation and resolution
  • Support security hardening, patching, vulnerability remediation and infrastructure security activities
  • Execute technical changes following established procedures, change-management processes and documentation standards

Network & Security Technologies

  • Basic understanding of networking and network security concepts, including DHCP, TCP/IP, DNS, HTTP/HTTPS and common network security protocols
  • Basic knowledge or exposure to security technologies such as NDR, Email Security, EDR/XDR, firewalls, WAFs and Load Balancers
  • Support the implementation, configuration and technical validation of security solutions, working alongside senior engineers
  • Support basic troubleshooting and analysis of connectivity, security and application-related issues across different infrastructure layers

TLS, Cryptography & PKI

  • Support TLS/SSL certificate lifecycle activities, including deployment, renewal, validation and troubleshooting
  • Develop practical knowledge of PKI, Certificate Authorities, certificate chains and trust relationships
  • Understand fundamental cryptographic concepts, including public/private keys, CSR and digital certificates
  • Troubleshoot TLS/certificate-related connectivity and application issues

Technical Projects & Customer Engagement

  • Participate in technical projects involving infrastructure and cybersecurity technologies, working alongside senior engineers and project teams
  • Support technical meetings, requirements gathering and coordination with customers and internal stakeholders
  • Track technical activities, issues, dependencies and deliverables, providing clear status updates and documentation
  • Communicate technical issues and solutions clearly, progressively taking ownership of technical work packages and customer-facing activities


Technical Skills:

  • Bachelor’s or Master’s degree in Computer Engineering or a similar field (preferred)
  • 1–3 years of experience in the field
  • Practical knowledge of Windows Server environments
  • Practical knowledge of Linux systems
  • Good understanding of fundamental networking concepts
  • Basic understanding of cybersecurity principles
  • Ability to perform structured technical troubleshooting and problem analysis
  • Basic scripting or automation knowledge using PowerShell, Bash and/or Python is desirable.


Soft Skills:

  • Strong problem-solving and analytical skills
  • Structured and methodical approach to troubleshooting
  • Ability to communicate with both technical and non-technical stakeholders
  • Customer-oriented mindset
  • Attention to detail, particularly when working with security-sensitive infrastructure
  • Proactive attitude and willingness to investigate and learn independently

Languages:


  • Fluency in Portuguese
  • English proficiency at B2 level or above.


Hybrid work model

If you meet these conditions and would like to join an innovative organization that continuously invests in training its talents, send us your application.

Join us. Let's innovate together!

All our recruitment and selection processes are based on equal opportunities, valuing the competence and potential of each person and ensuring that no candidate is discriminated on the grounds of gender, ethnicity, sexual orientation, age, religion or physical condition.

- Job advertisement under Law nr 4 / 2019, of 10th January


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Junior Security Engineer • Lisboa, Portugal

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