Application Support Engineer (L3)

About the Position

We are looking for a Senior Application Support Engineer (L3) to join our payments and financial technology team in Lisbon, Portugal. The team provides L3 application support for a critical production environment, focusing on root-cause analysis of incidents and collaborating with development teams on structural fixes.

Responsibilities

• Analyze and resolve production incidents (L3), ensuring accurate root-cause diagnosis
• Study functional documentation to understand business flows and rules, tracing transactions across multiple architecture components
• Investigate complex issues through log analysis, database queries, and system metrics
• Define and propose relevant metrics for early problem detection and identify recurring failure patterns
• Collaborate with development teams on structural problem resolution
• Document findings and share knowledge with the wider team

Requirements

• Location and work model
  • Hybrid (3 days/week in the office, Lisboa)
• Technical Skills
  • Linux shell proficiency (e.g. grep, awk, sed, sort, uniq, tail, ps, top)
  • SQL DML (select, joins, subqueries)
  • English C1
  • Portuguese

Nice to Have

• Observability tools (Grafana/ELK Stack)
• Ability to investigate functional issues through data analysis
• Scripting (Bash/Python)

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.

About the Company

At KWAN, they make sure that you feel comfortable with the client you’re working for and that what you’re doing aligns with your career aspirations.

What You Can Expect as a KWANer

• Respect isn’t optional here
  • You’re trusted to deliver and supported to speak up.
• Dedicated People Experience Partner
  • Someone accountable for your growth, not your allocation.
• Continuous learning, built in
  • Learning that keeps pace with the systems you build.
• Recognition that’s visible
  • Your impact doesn’t go unnoticed. Through our Rocket Points System, we constantly recognize your contributions.
• A culture you can feel
  • From movie and quiz nights to dinners and our annual summer gathering, we don’t just work together - we build real connections.
• Flexible spaces to work your way
  • Remote-first, with physical hubs when you want connection.

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Tell Us About You

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Grab this opportunity, apply now!