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

UST España & Latam; Madrid; Híbrido; EUR 60.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health care plan

Internet connectivity

Life and accident insurances

Training platforms

Career stability

Referral bonuses

12 or 14 payments

WFH policy

Gym discounts

UST Club platform discounts

Descripción de la vacante

UST España & Latam seeks an experienced L3 Support Engineer for a strategic banking project based in Madrid. You will be the escalation point for critical production incidents, analyze logs, debug code, and drive rapid resolution.

The role requires 3+ years in high-availability environments and strong .NET/C# backend skills. You will work with MSSQL, REST APIs, microservices, and Kafka, participate in RCA, release management, and a 24/7 on-call roster.

Formación

• 3+ years of hands-on experience in L3 Application Support, Site Reliability, or Software Engineering in high-availability environments.
• Strong backend troubleshooting skills with .NET and C# Solid experience with distributed architectures: REST APIs, Microservices, MQ and Kafka (event handling/topics debugging).
• 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.
• 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). Handling of Active Directory tasks.

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

NET

C#

REST APIs

Microservices

Kafka

MSSQL

Kubernetes

Windows

Linux

Dynatrace

Splunk

React

Herramientas

Dynatrace

Splunk

Grafana

GitLab

Jenkins

Descripción del empleo

UST España & Latam seeks an experienced L3 Support Engineer for a strategic banking project based in Madrid. You will be the escalation point for critical production incidents, analyze logs, debug code, and drive rapid resolution.

The role requires 3+ years in high-availability environments and strong .NET/C# backend skills. You will work with MSSQL, REST APIs, microservices, and Kafka, participate in RCA, release management, and a 24/7 on-call roster.