Application Support Specialist

1 month ago


City Of London, United Kingdom Marlin Selection Ltd Full time
Application Support Engineer

Marlin Selection Ltd is seeking a highly motivated and talented Application Support Engineer to join their London team.

This exciting opportunity empowers banks, brokerages, and hedge funds with cutting-edge trade routing and execution technology. Our platform, deployed with 200+ entities globally, features a low-latency trading environment, integrations to the world's leading execution venues, and reliable IT infrastructure and technical support—all designed to be customized and scaled to serve any business model and any size of market participant.

Key Responsibilities:
  • Provide customer support in accordance with company SLAs via email, phone, or live chat.
  • Manage upgrades and migrations and related application software.
  • Develop subject matter expertise and be an ambassador of digital asset knowledge within the team.
  • Work with clients to appropriately configure each aspect of their application, including liquidity provider details, order routing configuration, trading platform connectivity, and prime broker give-up arrangements.
  • Ability to process multiple client communication streams and make high-quality decisions under pressure.
  • High proficiency level (power user) with Microsoft Windows OS.
  • 2 - 5 years experience supporting clients in the financial services industry.
  • Basic knowledge of TCP/IP and Networking.
  • Basic knowledge of SQL (PGSQL, MYSQL).
What We Offer:
  • Competitive base salary DOE.
  • Annual Discretionary bonus.
  • Discretionary Christmas Bonus (additional).
  • 25 days holiday.
  • FREE lunches provided in the office.
  • Clearly defined career progression opportunities.
  • In-depth training provided.

Note: As part of the role, there will be occasional weekend work required for specific projects.



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