Hybrid L3 Support Engineer - .NET & SQL (Madrid)

remoteo; Madrid; Presencial; EUR 42.000 - 64.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health care plan

Internet connectivity

Flexible benefits

Training platforms

Work-life balance

Descripción de la vacante

UST, a North America–based multinational, is seeking an L3 Support Engineer to join a strategic banking project in Madrid, Spain. You will be the escalation point for critical incidents, working across .NET/C#, MSSQL, Kubernetes, and microservices to resolve issues and ensure uptime.

The role requires three days on client site in central Madrid, strong English (C1), on-call duties, and collaboration with Dev and QA teams.

Formación

• 3 years of hands-on experience in L3 Application Support, Site Reliability, or Software Engineering in high-availability environments.
• English at C1 level.
• Strong backend troubleshooting skills with .NET and C#.
• Deep working knowledge of MSSQL and relational databases for data analysis and troubleshooting.
• Proficient with Kubernetes, Windows, and Linux environments.
• Proven ability to participate in an on-call rota (including evening/weekend coverage as scheduled).
• Hands on experience using Dynatrace and Splunk. Grafana is a nice to have.
• Familiarity with frontend frameworks, specifically React, to assist in end-to-end user issue tracing. Prior experience in Fintech, Digital Banking, and investment product. Exposure to CI/CD pipelines (GitLab, Jenkins).

Responsabilidades

• Act as the L3 escalation point for critical production incidents, driving resolution through log analysis, code debugging, and telemetry.
• Perform root cause analysis (RCA) for complex outages, working with core development teams to implement long-term fixes.
• Coordinate and drive incident resolution efforts by quickly assessing issues, engaging the appropriate technical teams, and ensuring timely restoration of service.
• Actively participate in live incident calls and maintain situational awareness until services are fully restored.
• Monitor, troubleshoot, and optimize distributed microservices and event streams across production environments.
• Maintain database integrity and debug performance issues using complex SQL queries.
• Participate in release management, operational readiness reviews, and deployment processes in Kubernetes clusters.
• Join the team's rotating 24/7 on-call duty schedule to support mission-critical applications.

Conocimientos

L3 Support

English (C1)

.NET/C#

REST APIs

Microservices

Kafka

MSSQL

Kubernetes

Windows

Linux

On-call experience

Dynatrace

Splunk

Grafana

React

GitLab CI/CD / Jenkins

Herramientas

Kubernetes

Dynatrace

Splunk

Grafana

React

GitLab CI/CD

Jenkins

Descripción del empleo

UST, a North America–based multinational, is seeking an L3 Support Engineer to join a strategic banking project in Madrid, Spain. You will be the escalation point for critical incidents, working across .NET/C#, MSSQL, Kubernetes, and microservices to resolve issues and ensure uptime.

The role requires three days on client site in central Madrid, strong English (C1), on-call duties, and collaboration with Dev and QA teams.