Application Support Engineer
We're looking for a technically curious Application Support Engineer to join the Unified Platform Support team at a leading proprietary trading firm. You'll work closely with developers to support complex, high-performance systems used for market data processing, regulatory reporting, and compliance analytics. This is a hands-on role that gives you the freedom to dig into issues - sometimes right down to the code.
Key Responsibilities
Monitor and operate production systems supporting regulatory reporting and surveillance functions
Investigate and resolve data-related alerts and system issues, including code-level debugging when necessary
Collaborate with developers to troubleshoot complex issues and drive long-term improvements
Provide L1/L2 support to users across the firm (typically 2-10 issues per day), escalating to L3 when required
Assist in onboarding new teams and applications to the platform support model
Continuously refine monitoring processes and documentation as the platform evolves
What We're Looking For
Experience supporting and troubleshooting high-performance applications in a financial services environment
Strong Linux skills and comfort working in command-line environments
Understanding of market data and/or order data systems, including protocols like FIX or exchange-native formats
Strong analytical and problem-solving mindset
Ability to navigate or debug object-oriented code (Java and Python preferred)
Familiarity with version control tools (Git or SVN)
SQL proficiency - from writing queries to basic database operations
Exposure to cloud infrastructure, ideally AWS
Bonus: Experience with streaming/data tools such as Kafka, Spark, or Delta Lake
Technology Stack & Environment
You'll be working with:
AWS, Kubernetes, Kafka, Argo
Java 17, Python 3, HDF5
Distributed systems processing large volumes of market and order data
A globally distributed team covering Europe and North America
Why Join This Team?
Work closely with developers and gain exposure to complex systems architecture
Be empowered to investigate issues deeply and shape solutions
Join a respectful, collaborative culture that values outcomes over process
Use the right tools for the job - and keep learning as the tech evolves
FAQs
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