Java Software Engineer

Brooksource; Toronto; Remote; CAD 110,000 - 240,000; Full time

Job summary

A leading company is looking for an experienced Backend Java Developer for a long-term contract role. This position focuses on supporting the migration from a legacy credit trading platform to a next-generation system. The ideal candidate will have significant experience in Java development and AWS, as well as expertise in real-time messaging and integration with various external trading venues. The successful applicant will play a key role in enhancing trading system performance and ensuring accuracy in data flows.

Benefits

Direct communication with the hiring manager

Full transparency during the interview process

Qualifications

• 7+ years of backend software development experience primarily in Java.
• Solid experience in AWS cloud-based development.
• Strong understanding of FIX Protocol and IBM MQ.

Responsibilities

• Develop and maintain backend services for existing and new trading platforms.
• Support the decommissioning of legacy systems and migration to GMTC.
• Ensure stability and high performance of real-time trading data flows.

Skills

Java

AWS

FIX Protocol

IBM MQ

Real-time Messaging

Git

Linux

Job description

Direct message the job poster from Brooksource

100% Remote (

• MUST be local to Ontario, Canada)

Long Term Contract with Potential for Hire

Overview :

Our client is seeking an experienced Backend Java Developer to support the decommissioning of a legacy credit trading platform and help drive the migration to the firm’s next-generation Global Markets Transaction Capture (GMTC) platform. This role involves working closely with existing trading systems and a high volume of integrations with external market venues (e.g., Bloomberg, Kandio), making data integration and flow a critical component of success.

In the initial phase (first ~3 months), the developer will work alongside existing contractors on the legacy platform and begin migration activities. The ideal candidate will have strong backend Java experience , a proven background working in AWS-hosted environments , and hands-on knowledge of FIX protocol and IBM MQ .

Key Responsibilities :

• Provide leadership and innovative ideas with respect to development design and integration with other components
• Develop and maintain backend services for existing and new trading platforms, including maintaining the current trading systems, provide system enhancement and production support
• Support the decommissioning of legacy systems and migration to GMTC
• Handle integration with 30+ external trading venues (e.g., Bloomberg, Kandio)
• Ensure stability, high performance, and accuracy of real-time trading data flows
• Build high-quality documentation artifacts (solution diagram, trade flow, current vs target state, etc.) as required by the client's standards
• Design and build modern, scalable solutions using Java and AWS technologies
• Create and maintain documentation including solution diagrams, trade flows, and current vs. target state overviews
• Collaborate with traders and stakeholders to iterate quickly and incorporate feedback into solutions
• Participate in Agile ceremonies, unit testing (participate in planning and execution of test suites), and deployment using CI / CD pipelines
• Partner with others in the organization to advance the client's overall IT capabilities in the areas of real-time messaging, application integration, application high-availability, other

Required Qualifications :

• 7+ years of backend software development experience, primarily in Java
• Solid experience in AWS cloud-based development
• Strong understanding of FIX protocol , IBM MQ , and real-time messaging
• Background working with high-performance, real-time streaming systems
• Experience integrating with external trading platforms and venues
• Familiarity with tools such as Git, DevOps pipelines, Linux / Shell scripting, and CI / CD workflows
• Excellent communication skills and ability to partner effectively with business and technology teams

Nice to Have :

• Experience with Python for internal trading applications
• Familiarity with legacy systems written in C++ (not required, but helpful during transition)
• Knowledge of Capital Markets – Fixed Income, Credit Trading, or Rates
• Experience with platforms such as Bloomberg TOMS, FIS BondOne, Calypso, or WSS

BENEFITS OF WORKING WITH BROOKSOURCE :

• Direct communication with the hiring manager, which allows us to move candidates through the interview process faster.
• Dedication to keep an open line of communication and provide full transparency.

We are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Seniority level

Seniority level

Mid-Senior level

Employment type

Employment type

Contract

Job function

Job function

Engineering and Information Technology

IT Services and IT Consulting

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Software Engineer Java • Toronto, ON, Canada