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Posted 16 days ago

Application Developer III

@ Hays

View all jobs Website

Waterloo, ON · Toronto, ON

$80–$90/hrContract5+ years experience
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Overview

Hays is hiring a senior application developer on a 12-month contract, extendable, for work in Toronto or Waterloo, Ontario with 2 to 3 days a week onsite. The role builds enterprise applications and APIs in C# and .NET Core, supports AWS cloud solutions, and enhances data platforms including Snowflake. No pay is stated.

Pay:

$80–$90 an hour

Responsibilities:

  • Develop, deploy and support applications and APIs in C#, .NET Core, Python and SQL
  • Build and maintain CI/CD pipelines and cloud solutions on AWS
  • Support Snowflake and modern data platforms
  • Troubleshoot production issues and implement secure, scalable solutions

Requirements summary:

  • 5+ years in software development, cloud, DevOps or data engineering
  • Strong C#, .NET Core, Python, SQL and web application experience
  • Hands-on AWS experience (EC2, S3, RDS, EKS, IAM, CloudWatch)
  • Knowledge of Snowflake or similar cloud data platforms

Tools & skills

C#.NET CorePythonSQLAWSDockerKubernetesSnowflakeCloudWatchPower BI
Source and dates

Employer career site / ATS feed · careerpage

Employer posting date
2026-10-21
First seen by our source
2026-10-23
Source record updated
2026-10-23

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SenioritySenior
DepartmentSoftware development
Experience5+ years
Travelair: none · ground: none
Work settingOffice
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish

Summary and details written by AI from the posting; the employer’s posting is the authority.

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Job description

Job Title: Application Developer

Location: Toronto, ON, Waterloo, ON (Hybrid 2-3 days onsite)

Duration: 12 Months contract with possibility of extension

Job Description:

Seeking a Senior Software Engineer with experience in software development, cloud engineering, DevOps, and data platforms. The role involves building enterprise applications and APIs, supporting AWS cloud solutions, enhancing data platforms, and contributing to AI-enabled initiatives.

Responsibilities:

Develop, deploy, and support applications and APIs using C#, .NET Core, Python, and SQL.

Build and maintain CI/CD pipelines and cloud-based solutions on AWS.

Support Snowflake and modern data platforms, including data integration and optimization.

Troubleshoot production issues and implement secure, scalable solutions.

Collaborate with architects, engineers, and business stakeholders to deliver high-quality solutions.

Contribute to application modernization, automation, and continuous improvement efforts.

Required Skills:

5+ years of experience in Software Development, Cloud Engineering, DevOps, or Data Engineering.

Strong experience with C#, .NET/.NET Core, Python, SQL, and web application development.

Hands-on experience with AWS (EC2, S3, RDS, EKS, IAM, CloudWatch).

Experience with CI/CD tools, Docker, Kubernetes, and API development.

Knowledge of Snowflake or similar cloud data platforms.

Strong troubleshooting, communication, and stakeholder management skills.

Preferred Skills:

Experience with AI/GenAI solutions and intelligent automation.

Knowledge of Power BI, Tableau, PostgreSQL, and analytics platforms.

Exposure to DevSecOps tools such as Snyk or Checkmarx.

Experience in financial services, insurance, or other regulated industries.

Previous mentoring or technical leadership experience.

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion on your career.


This posting is not for an existing vacancy with the organization.

AI may be used to screen, assess or select applicants for the position.


#LI-DNI
#1127229 - Marie Cronin

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