ITDS Portugal
ITDS is a leader in outsourcing IT engineers and works with various web and mobile technologies for over 30 global clients. It has been recognized as one of the 1000 fastest-growing companies in Europe for three consecutive years, Great Place to Work, and the Forbes Diamond award in 2023. ITDS currently has more than 600 IT professionals working in Portugal, Poland, and the Netherlands.
About company Senior Application Support Engineer – Critical Systems
On-site
Lisbon
June 4, 2026
Empower critical systems — drive stability and resilience in high-stakes production environments!
Lisbon-based opportunity with a hybrid work model (up to 2 days remote per week).
As a Senior Application Support Engineer, you will be working for our client, a leading player in the industry focused on maintaining and enhancing critical production systems. Join a team committed to excellence, ensuring seamless operations and innovative solutions.
Your main responsibilities:
- Provide solid application support in a critical production environment, ensuring system availability and performance.
- Analyze logs, troubleshoot incidents, and track issues across distributed systems using structured approaches.
- Perform maintenance, updates, and incident resolution following ITIL best practices (Incident, Problem, Change management).
- Collaborate with development teams to understand application architecture and support requirements.
- Utilize CI/CD tools such as Jenkins and GitLab for deployment and automation processes.
- Monitor system health with various tools, including job schedulers and monitoring platforms.
- Apply basic scripting in PowerShell, Shell, or Python to automate routine tasks and improve support workflows.
- Assist in implementing stability improvements and preventive measures for production systems.
You're ideal for this role if you have:
- At least 4 years of experience in application support, operations, or a similar role.
- Solid experience with application support, RUN, and MCO in critical environments.
- Proficiency in .NET / C# development, MS SQL Server, and familiarity with Dynamics 365 is a bonus.
- Good understanding of web applications, APIs, relational databases, and monitoring tools.
- Ability to analyze logs, troubleshoot incidents, and perform structured problem-solving.
- Knowledge of CI/CD tools such as Jenkins and GitLab.
- Well-versed in ITIL processes (Incident, Problem, Change).
- Experience working in Windows / Unix / Linux environments with basic scripting skills.
It is a strong plus if you have:
- Experience with PowerShell, Shell scripting, or Python.
- Certifications or additional expertise related to IT service management or automation.
Language Required for the role:
- Good command of English — both spoken and written.
Eligibility to work in Europe:
- Only candidates with an existing legal right to work in the European Union will be considered for this role.
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Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.
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