Senior Developer (Java/ C)

Job Type
500,000 JPY per month
Japanese Level
English Level
Fluent (TOEIC 990)
Start Date


 A global finance firm seeks a Senior Developer (Java, C, Linux) to be part of an existing team based in Tokyo, providing market leading Ultra low latency, very high frequency, high performance DMA Exchange co-lo solutions.


The successful candidate will be an exceptional core server-side Java developer, with a proven track record of creative technical solutions to complex business problems; have excellent communication, flexibility, working well under pressure, multi-tasking and ideally familiar with Arrowhead/OUCH/FIX protocols and basic Networking.


As a key member of our team the successful candidate will:

- Implement new and maintain existing applications for high performance processing and trading using core server-side Java

- Enhance existing exchange connectivity and core application framework

- Work to debug and troubleshoot application problems, often in real time and potentially with impact to intraday trading and middle/back office processing

- Participate in the full project life cycle including technical analysis & design, data analysis & mapping, development and testing

- Provide level 2 and 3 support. Get involved with Production Support and client testing activities

- Ensure adherence to functional architecture strategy and compliance to company development standards

- Build and maintain own expertise needed to provide proper technology to the business

- Take full ownership of application releases, regression tests, and bring more automation and strategic technologies into the legacy apps wherever possible, without impacting the stability of these apps



【会社概要 | Company Details】
Our client is a Japan-headquartered financial services group with an integrated global network spanning over 30 countries. The company has over 90 years’ history and driven by over 28,000 employees worldwide.

【就業時間 | Working Hours】
8:40 ‐ 17:40(Mon ‐ Fri)

【休日休暇 | Holidays】
Saturday, Sunday, and National Holidays, Year-end and New Year Holidays, Paid Holidays, etc.

【待遇・福利厚生 | Services / Benefits】
Social insurance, Transportation Fee, No smoking indoors allowed (Designated smoking area), etc.
各種社会保険完備(厚生年金保険、健康保険、労災保険、雇用保険)、 屋内原則禁煙(屋外に喫煙所あり)、 通勤交通費支給等

Required Skills

- Core server-side Java and some C knowledge using Linux.

- Experience with extremely low latency and highly optimized development using server side processing and network communication with reliable and predictable performance.

- Network protocols, TCP/IP stack, Kernel bypass technologies

- Strong problem solving and debugging skills.

- High level of initiative, and strong sense of ownership.

- Solid track record of delivering high quality code in an aggressive, development environment, demonstrated result-driven and ability to succeed within a disciplined, high-productivity, low-overhead development process

- Familiar with design patterns and multi-tier enterprise application architecture

- Unit testing (JUnit, Mock frameworks)

- Team player, able to work effectively within a local / global team


Preferred Skills

- Good knowledge of Equity Trading systems, DMA and FO STP technology

- Proficiency in Arrowhead/OUCH/FIX protocols