Intermediate Fullstack Developer (ETL and Web) with SSIS and Node/React experience to work with a major retail client- 30141
S.i. Systems
Toronto, ON-
Number of positions available : 1
- Salary To be discussed
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Contract job
- Published on June 13th, 2025
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Starting date : 1 position to fill as soon as possible
Description
Intermediate Fullstack Developer (ETL and Web) with SSIS and Node/React experience to work with a major retail client- 30141
Location: Mississauga - 5 days on site (May be possibility of Hybrid 2-3 Days)
Duration: Until Jan 31, 2026
Hours: 37.5 Hours Per Week
We are seeking a highly motivated and skilled Fullstack Developer for an immediate contract opening. This role offers a unique opportunity to leverage your expertise across data integration and modern web development, contributing to diverse projects and collaborating with multiple teams.
Role Overview:
- The successful candidate will be primarily focused on ETL development (80%) using SSIS and Microsoft SQL Server, with a significant web development component (20%) utilizing React and Node.js. This hands-on role will involve the creation and support of robust ETL processes and web-based applications, alongside active participation in solution design, team recommendations, continuous improvement initiatives, and comprehensive documentation.
- We are looking for an engaged individual with strong communication skills who is proactive in contributing ideas and insights to the team.
Key Responsibilities:
- Design, develop, test, and maintain ETL processes using SSIS (Visual Studio 2019) to extract, transform, and load data from various sources into target systems.
- Write and optimize complex SQL queries and stored procedures for data manipulation and reporting in MS-SQL.
- Develop and maintain web-based applications using React (v18) for the frontend and Node.js (v18) with the Express framework for the backend.
- Provide technical expertise and recommendations for solution design and system architecture.
- Assist in troubleshooting and resolving issues related to ETL pipelines and web applications.
- Champion code quality, best practices, and continuous integration/delivery methodologies.
- Contribute to technical documentation, including design specifications, data flow diagrams, and user guides.
- Collaborate effectively with cross-functional teams and stakeholders.
- Actively participate in problem-solving, decision-making, and fostering a culture of innovation.
Required Skills & Experience:
- 3-5 years of ETL & Database in the following:
- Microsoft SQL Server Integration Services (SSIS):
- Proficiency with VS 2022.
- Ability to develop and debug complex SSIS packages.
- Basic C# scripting skills for SSIS components.
- SQL: Strong ability to develop, optimize, and troubleshoot SQL queries, Expertise in creating and managing stored procedures.
- 3-5 years of Web Development in the following:
- Node.js: Experience with Node.js v20, Proficiency in using the Express framework for backend development.
- React: Experience with React v18, Strong understanding and application of React Hooks, ExpressJS and NestJS
Requirements
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