Sr Applications Developer - GoLang #107494

C.G. Consulting Group; Toronto; Hybrid; CAD 110,000 - 117,000; Full time

Job summary

C.G. Consulting Group seeks a Senior Applications Developer skilled in Go to lead backend development for a Capital Markets payment platform. You will own end-to-end delivery from analysis to production deployment in a legacy system, mentoring teammates and ensuring code quality.

The role emphasizes ownership, hands-on Go development, and collaboration across delivery stakeholders. Hybrid in-office, with regular on-site days in downtown Toronto, and a focus on scalable, secure backend services.

Qualifications

• 6-8 years of software development experience.
• Minimum two to three years hands-on Go development.
• Strong backend application development experience.
• Experience providing technical direction, mentorship, or guidance to development team members.
• Strong working knowledge of Test-Driven Development.
• Experience writing and maintaining comprehensive unit test suites.
• Experience with static code analysis and security tools (Snyk/SonarQube).

Responsibilities

• Design, develop, and maintain backend applications using Go (Golang).
• Own development deliverables from requirements analysis through testing and production deployment.
• Understand the existing architecture, business domain, dependencies, and supporting systems.
• Provide hands-on support across 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 unit test suites with Test-Driven Development practices.
• Apply clean code and development best practices to ensure code quality.
• Promote consistent coding, testing, and quality standards across the team.
• Utilize static analysis and security scanning tools to address quality and security concerns.
• Collaborate with stakeholders across development, testing, security, and delivery.
• Show awareness of AI-assisted and AI-driven development tools and practices.

Skills

Go (Golang)

Backend development

Test-Driven Development

Code quality practices

Tools

Snyk

SonarQube

Job description

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? Opportunity 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.


• Experience providing technical direction, mentorship, or guidance to development team members.


• Strong working knowledge of Test‑Driven Development.


• Experience writing and maintaining comprehensive unit test suites.


• Experience with static code analysis and security or vulnerability scanning tools, including Snyk and SonarQube.

Nice to Have

• Awareness of and genuine interest in AI‑assisted or AI‑driven development tools and practices


• Exposure to payment applications, foreign exchange platforms, or Capital Markets technology environments would be beneficial but is not mandatory

Soft Skills

• Strong ownership and accountability.


• Ability to drive deliverables from inception through production implementation.


• Proactive and self‑directed approach to problem‑solving.


• Strong technical leadership and mentoring capabilities.


• Ability to understand complex existing systems and supporting business domains.


• Clear verbal and written communication skills.


• Collaborative approach when working with development, testing, security, and delivery stakeholders.


• Strong attention to code quality, testing standards, and development best practices.


• Ability to balance hands‑on development responsibilities with team leadership and guidance.


• Genuine interest in learning and applying emerging software development practices

NOTE

Close on Sept 30 at 1PM

Please do not submit candidate's that were submitted for 104946-1.