Sr Applications Developer - GoLang #107494

Start/End Dates: 2026-09-29 - 2027-03-28

Work Location: downtown Toronto, near TTC and GO

Job Title: IT - Applications Developer - Senior

Job Title: Sr Applications Developer - GoLang

Line of Business: ASG - Capital Markets

Target rate range: $80-85hr B2B

Target Start Date: Oct 26th

Duration: 6 months

Potential for this contract to be extended or converted to FTE? Extension: Yes / FTE: Yes

Hybrid work: in office on Wednesday Thursday, plus4th Friday of the month. (occasional additional days if needed)

Office Location: 141 Bay Street, Toronto

Work Schedule (hours per week, start time): 37.5 Hours/week, 9-5 Monday to Friday

Potential for OT? No

What does the LOB do?: The team supports Capital Markets payment applications, including the backend Payment Hub Foreign Exchange platform. The application is a legacy product that requires ongoing development, maintenance, testing support, and production deployment.

Reason the role is open? The team requires an experienced Golang developer who can provide hands‑on development support and independently take ownership of work from initial analysis through testing and production deployment.

What project will this contractor be working on? The candidate will support the existing Payment Hub Foreign Exchange legacy application. This role is focused on regular application development and maintenance work and is not part of the separate cloud transformation initiative. The application is entirely backend‑facing rather than customer‑facing.

About team: 10-15 team members





Highlights of the role; why would someone choose this role over another? Prospect to take end‑to‑end ownership of backend application development and delivery. Combination of hands‑on Golang development and technical leadership responsibilities. Ability to lead a smaller project or initiative independently. Opportunity to understand an established Capital Markets payment platform and its supporting business domain. Direct involvement throughout the full delivery lifecycle, including understanding existing systems, development, testing support, deployment, and production implementation. Opportunity to mentor team members and establish clean code, testing, and development standards across the team

How many years of experience? 6-8

Job Description

The Senior Applications Developer will provide hands‑on backend development and technical leadership for a legacy Capital Markets payment application. The successful candidate will be responsible for understanding the existing system, developing and maintaining Golang‑based application components, supporting testing activities, and driving deliverables through production deployment.

The role requires a strong individual contributor who can independently own smaller projects or initiatives while also providing technical direction, mentorship, and development guidance to the broader team.



The candidate should demonstrate strong ownership and be comfortable working across the complete software delivery lifecycle rather than focusing exclusively on coding activities.

Key Responsibilities

- Design, develop, enhance, and maintain backend applications using Go (Golang)
- Take ownership of development deliverables from requirements analysis through testing and production deployment.
- Understand the existing application architecture, business domain, dependencies, and supporting systems.
- Provide hands‑on support throughout development, integration testing, user acceptance testing, implementation, and production release activities.
- Independently lead smaller projects or application initiatives.
- Provide technical direction, mentorship, and development guidance to team members.
- Develop and maintain comprehensive unit test suites using Test‑Driven Development practices.
- Apply clean code principles and established software development best practices.
- Promote consistent coding, testing, and quality standards across the development team.
- Use static code analysis and security‑scanning tools to identify and address code quality, security, and vulnerability concerns.
- Collaborate with development, testing, security, and delivery stakeholders.
- Demonstrate awareness of and interest in AI‑assisted and AI‑driven software development tools and practices.

Must Have Requirement

- 6-8 years of overall software development experience.
- Minimum two to three years of hands‑on Go (Golang) development experience.
- Strong backend application development experience.<

📌 Sr Applications Developer (Toronto)
🏢 C.G. Consulting Group
📍 Toronto