Application Support Engineer


Fusion Systems is seeking Application Support Engineers to join our growing financial trading technology company, Raptor Financial Technologies. Raptor is a leading ultra-low-latency market access and risk management platform, servicing the world’s largest financial institutions and their high-value order flows. The role is suited to a candidate with strong Linux skills and proficiency in scripting languages, and looking for a hands-on role in application design and development in mission-critical front-office technology. The successful candidate will work alongside a high-caliber team at one of the world’s largest and most innovative investment banks.



  • Improve and develop automated tools

  • Test and document new and existing software systems

  • Release new software systems in production

  • Client on-boarding

  • Monitor trading systems

  • Document and follow-up on incidents and bug reports

  • Communicate with technical teams regarding system and client trading status

  • Ongoing training and development will be provided to motivated applicants interested in establishing a career in this fast paced and dynamic environment


Basic Qualifications

  • A minimum of 1-2 years of practical experience in a UNIX environment

  • Bash experience

  • Version control tools such as Git, Subversion or Mercurial

  • Familiarity with Python collections

  • Strong Python or Perl proficiency

  • Strong UNIX skills including ability to analyze/parse log files using utilities such as grep, awk, sed

  • Strong UNIX-based text editor skills such as vi, emacs

  • Solid understanding of software life-cycle phases including development, testing, release and maintenance

  • Working knowledge of ticketing and issue tracking systems

  • A teamwork attitude and ability to maintain a professional demeanor when resolving issues

  • Strong English verbal and written communication skills


Preferred Qualifications

  • Previous customer-oriented service experience

  • Database querying languages such as SQLite or MySQL

  • Familiarity with TSE Arrowhead, OUCH, OM trading protocols

  • Familiarity with FIX trading protocol

  • Financial instrument trade flow familiarity

Employment Location

Full-time positions are currently available in Tokyo.

For more information on working at Raptor Financial Technologies, visit our careers page at and contact us at