KLx

KLx is the Portuguese subsidiary of the Crédit Agricole Group that provides IT Skills & Software Development services to the IT organizations within the group's business lines. Founded in February 2020, our mission is to assist in the digital transformation and IT activities of the Crédit Agricole Group, leveraging all the skills of our international campus in Lisbon.
About company

Application support engineer (payments services)

Remote

location Lisbon

date May 19, 2026

types Full-time

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About KLx

KLx is the Portuguese subsidiary of Crédit Agricole S.A., a large international banking group that provides IT Skills & Software Development services to the IT organizations within the group's business lines.

Our mission is to assist with the IT transformation & activities of a worldwide bank capitalizing on all the skills from our international campus in Lisbon.

About Responsibilities

KLx is strengthening its Payments Services team and looking for an Application Engineer Support (application integration) to support the deployment, reliability, and continuous improvement of the EPI/WERO applications across P2P, Consumers, and Acceptor domains.

You will play a key role in environment setup, integration, observability, CI/CD, incident management, and collaboration with development, production, and business teams.

This is a hands‑on, high‑impact role on real‑time, 24/7 critical payment applications.

Key Responsibilities:

  • Application Integration & Environment Setup
  • Reliability & Service Quality
  • Incident & Problem Management (Level 3)
  • Cross‑Team Collaboration

Who You Are

  • At least 3 years of experience in application integration or advanced L3 application support.
  • Strong hands‑on skills with Linux, Kubernetes, and CI/CD pipelines (GitLab, Jenkins, ArgoCD).
  • Good knowledge of PostgreSQL, MongoDB, and scripting (Shell, Ansible).
  • Experience supporting real‑time, 24/7 critical applications with strong incident analysis (L3/RCA).
  • Solid understanding of technical & functional architecture and modern observability tools (Dynatrace).
  • Experience with API testing tools (Postman, Bruno) and security mechanisms (RSA, HMAC, mTLS) is a plus.
  • Exposure to the payments ecosystem is appreciated.
  • Comfortable communicating in French (B1) and English (B1).

What We Offer

  • Competitive Salary + Bonus + Flex Benefits + Health Insurance
  • Hybrid working model, allowing you to combine onsite and offsite work
  • Open Space with a lovely location next to Tejo, 5 minutes’ walk from Metro and Train Station, 15 minutes’ drive from Humberto Delgado’s airport
  • Canteen facilities (Breakfast + Lunch)
  • Parking upon request (option to charge electrical cars)
  • Free coffee, hot chocolate, fruits
  • Training (Hard and Soft Skills)
  • International environment with more than 15 nationalities
  • A people oriented and friendly working environment
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DevOps