At AKKODIS, a global leader in engineering and digital services, we are looking for talent like you!

We are an international company specialized in technology, engineering and innovation, supporting the digital transformation of leading organizations across multiple industries. We are currently looking for a

Senior L3 Application Support Engineer

to join an

international banking project , working within a global fintech operations team and supporting mission-critical applications in a highly available and distributed environment.

About the role We are looking for a proactive and hands-on

L3 Application Support Engineer

who will act as the highest technical escalation point for complex production incidents. You will work closely with

Software Engineers, Service Owners and Product Owners

in an Agile environment, performing deep-dive troubleshooting, root cause analysis and performance optimization across distributed microservices and event-driven architectures.

Key responsibilities 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 incidents and outages, working with development teams to implement long-term solutions. Coordinate incident resolution by assessing issues, involving the appropriate technical teams and ensuring timely service restoration. Participate in

live incident calls

and maintain technical ownership until services are fully restored. Monitor, troubleshoot and optimize

distributed microservices and event streams

across production environments. Analyse data and troubleshoot performance or integrity issues using

complex SQL queries . Participate in

release management, operational readiness reviews and deployments

in Kubernetes environments. Work with

REST APIs, Microservices, MQ and Kafka ,



including event handling and topic troubleshooting. Participate in a rotating

24/7 on-call schedule

supporting mission-critical applications.

What are we looking for? ✔

3+ years of hands-on experience

in L3 Application Support, Site Reliability Engineering or Software Engineering within high-availability environments. ✔ Strong backend troubleshooting experience with

.NET and C# . ✔ Solid knowledge of

distributed architectures, REST APIs, Microservices, MQ and Kafka . ✔ Strong experience with

MSSQL and relational databases , including data analysis and troubleshooting. ✔ Hands-on experience with

Kubernetes, Windows and Linux

environments. ✔ Experience working with

Dynatrace and Splunk . Knowledge of Grafana is a plus. ✔ Ability to participate in an

on-call rotation , including evening and weekend coverage when required. ✔ Excellent

written and spoken English , with the ability to collaborate effectively in an international environment.

⭐

Nice to have Experience with

React

or other frontend frameworks, particularly for end-to-end issue tracing. Previous experience in

Fintech, Digital Banking or Investment Banking . Exposure to

CI/CD pipelines , such as GitLab or Jenkins. Experience with

Active Directory

administration and tasks.

What do we offer? The opportunity to work on a

integral banking/fintech project . An international environment with collaboration across different teams and countries. A technically challenging role working with

microservices, event-driven architectures and mission-critical applications . The opportunity to work with modern technologies including

.NET, C#, Kafka, Kubernetes, MSSQL, Dynatrace and Splunk . Join a dynamic and international environment with opportunities for professional growth.

Are you an experienced L3 Application Support Engineer looking for your next challenge in an international banking environment?

We would love to hear from you!

📌 Support Engineer (.NET/C#) (Valencia)
🏢 Akkodis
📍 Valencia