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Swoon

Senior Developer- Fixed Income Trading

Remote

Toronto, Canada

Senior

Freelance

09-12-2025

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Skills

Communication Leadership Python Java CI/CD DevOps Linux Windows Databases git Organization AWS Shell Software Development Agile C++ CI/CD Pipelines Windows Server

Job Specifications

We are seeking a seasoned and innovative Senior Developer to join a high-impact team focused on building high-performance, real-time trading solutions. This is an exciting chance to influence the architectural design and execution of mission-critical systems used by traders daily.

This is a 6-month contract with a strong possibility of extension.

Location: This role is currently 100% remote, but candidates must be based in the Greater Toronto Area (GTA) to attend occasional in-office events and meetings at their downtown Toronto location.

Key Responsibilities

Provide technical leadership and innovative design ideas for complex development and integration tasks.
Work closely with traders and stakeholders, demonstrating the ability to rapidly adjust, redesign, and adapt functionality based on frequent, fast-paced feedback.
Design and build highly available, scalable software components utilizing modern software principles.
Produce high-quality documentation artifacts, including solution diagrams, trade flow analyses, and current vs. target state definitions.
Maintain, enhance, and provide crucial production support for existing trading systems.
Contribute to the organization's overall IT capability advancement in areas like real-time messaging and application high-availability.

Required Technical Experience

7+ years of demonstrated experience developing complex, high-performance software solutions for large, geographically dispersed financial organizations.
Expertise in systems requiring real-time streaming, high-volume data updates, and integration with both internal and external services (e.g., TCP, HTTP, MQ).
Mandatory: Extensive experience with the FIX protocol.
Proficiency in modern software languages, specifically Java, Python, and C++.
Deep knowledge of Oracle databases.
Experience with DevOps, CI/CD pipelines, Git, Linux server, Shell scripting, and Windows server environments.
Must be a True Agile practitioner—able to start with a concept and rapidly iterate to the final product.

Highly Valued Assets

Work experience within Capital Markets, specifically supporting Fixed Income, Credit Trading, or Rates desks.
Prior experience working with large Capital Markets trading platforms (e.g., Bloomberg TOMS, FIS BondOne, Calypso, WSS).
Experience in AWS software development.

Behavioral & Professional Skills

Exceptional verbal and written communication skills.
Proven ability to partner effectively with all levels, including senior technology leaders, business stakeholders, and team members.

Apply Now

If you are a senior developer with a passion for building state-of-the-art trading technology and are looking for a challenging contract role with long-term potential in the GTA, please submit your resume today.

The target hiring compensation range for this role is between 70/hr to 85/hr depending on overall experience. Compensation is based on several factors including, but not limited to education, relevant work experience, relevant certifications, and location.

About the Company

In 2010, Swoon launched an agile, client-focused team that is not only savvy in our core industries but elbow-deep, every day, getting to know the strongest talent in the technology and professional fields. Today, Swoon is one of the fastest-growing talent and consulting firms in the U.S., Canada, Australia, and Mexico with an expanding client roster of Fortune 1000 companies, Best-of Awards, and legions of talent in our network. We are a WBENC-certified company founded by industry leaders with 100+ years of combined exp... Know more