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Contract Developer Jobs in Waterloo, ON (NOW HIRING)

GEI Consultants

Data Engineer

Guelph, ON

CA$90K - CA$150K/yr

Collaborate with AI Engineers to define data contracts and ensure pipeline outputs meet solution requirements for schema, latency, and freshness. * Instrument data pipelines for monitoring, alerting ...

Onterris

Intermediate Water Resources Engineer

Guelph, ON · On-site

CA$34 - CA$58/hr

Provide resident engineering and contract administration support for construction projects. * Successfully manage project budgets, invoicing, scheduling, change management, and client management.

IKO Industries, Inc

HSE Engineering Co-Op

Milton, ON

CA$23.50 - CA$26.50/hr

We presently have an opportunity for a HSE Engineering Co-Op (8-month or 12-month contract) to join our team based in Milton, Ontario. We are looking for someone to start during the Fall 2026 The HSE ...

GHD

Engineering Graduate, Environmental

Waterloo, ON · Hybrid

CA$67K/yr

... contract administration, vapour sampling, etc. * Project types will range from environmental site assessment (Phase I and Phase II) environmental monitoring, soil/groundwater management in private ...

Magna

Environmental Program Engineer

Milton, ON · On-site

CA$84K - CA$93K/yr

This is a contract position beginning on July 6, 2026 and ending on February 18, 2027 Salary Range: $84,000 - $93,000 MINIMUM JOB REQUIREMENTS: * University degree in Environmental Engineering * Min ...

AECOM

Civil Project Engineer

Kitchener, ON · On-site

Support contract administration activities, including contractor coordination, progress reviews ... Bachelor's degree in civil engineering (or equivalent) * 4+ years of related working experience in ...

Onterris

Service Director, Foundation Engineer

Guelph, ON · Hybrid

CA$160K - CA$210K/yr

Our scientists, engineers, field teams,consultantsand professionals collaborate across disciplines ... planning, contract administration, schedule management, and financial performance monitoring.

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Contract Developer information

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$55

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How much do contract developer jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for contract developer in Waterloo, ON is $55.71, according to ZipRecruiter salary data. Most workers in this role earn between $36.08 and $69.25 per hour, depending on experience, location, and employer.

What is a contract developer?

A Contract Developer is a software developer hired on a temporary or project basis to create, modify, or maintain applications and systems. They typically work for clients or companies under a contract agreement rather than as a full-time employee. Their responsibilities may include coding, debugging, testing, and collaborating with teams to meet project requirements. Contract Developers often specialize in specific programming languages or technologies and may work remotely or on-site. The duration and terms of their work vary based on the contract and project scope.

What are some common challenges faced by contract developers and how can they be managed?

Contract Developers often work on multiple projects or with various clients, which can present challenges such as rapidly adapting to different codebases, meeting tight deadlines, and managing shifting priorities. Effective communication with stakeholders and clear agreement on project scope and deliverables can help minimize misunderstandings. Staying organized through productivity tools and maintaining continuous skills development also contribute to handling workload fluctuations. By proactively addressing these challenges, contract developers can deliver high-quality work and build strong professional relationships.

What are the key skills and qualifications needed to thrive as a contract developer?

To excel as a Contract Developer, strong programming skills, experience with relevant frameworks, and a solid educational background in computer science or related fields are essential. Familiarity with version control systems like Git, project management tools, and possibly certifications such as AWS Certified Developer or Microsoft Certified: Azure Developer Associate are advantageous. Excellent time management, client communication, and adaptability are critical soft skills for success in contract-based work. These skills enable a Contract Developer to efficiently deliver quality results, meet client expectations, and thrive in dynamic, project-oriented environments.

What are the most commonly searched types of Developer jobs in Waterloo, ON? The most popular types of Developer jobs in Waterloo, ON are:
What job categories do people searching Contract Developer jobs in Waterloo, ON look for? The top searched job categories for Contract Developer jobs in Waterloo, ON are:
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Contract Developer jobs near you
Infographic showing various Contract Developer job openings in Waterloo, ON as of August 2026, with employment types broken down into 75% Full Time, 10% Part Time, 1% Temporary, and 14% Contract. Highlights an 78% Physical, 6% Hybrid, and 16% Remote job distribution, with an average salary of $115,872 per year, or $55.7 per hour.

Data Engineer

GEI Consultants

Guelph, ON

CA$90K - CA$150K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 5 days ago

GEI Consultants rating

7.6

Company rating: 7.6 out of 10

Based on 7 frontline employees who took The Breakroom Quiz

275th of 446 rated engineering

Job description

Description

Your role at GEI. 
 
The Data Engineer is responsible for designing, building, and maintaining the data pipelines and integrations that power GEI’s AI solutions and digital initiatives. This role focuses on ensuring enterprise data is accessible, reliable, and governed so that AI capabilities can be deployed and scaled with confidence.
 
The Data Engineer plays a hands-on role by preparing and integrating the data foundations that AI solutions depend on. This includes building ingestion pipelines, managing data stores, implementing quality and governance controls, and supporting retrieval patterns such as RAG. This role works closely with AI Engineers, solution architects, and platform teams to ensure data infrastructure is production-ready, secure, and aligned with GEI standards.
 
Essential Responsibilities & Duties 
  • Design, build, and maintain data pipelines that ingest, transform, and deliver enterprise data to AI solutions and business applications.
  • Develop and manage integrations across enterprise data sources using APIs, Graph connectors, event-driven architectures, and batch/streaming patterns.
  • Build and maintain data stores and indexing infrastructure that support retrieval-augmented generation (RAG) and other AI consumption patterns.
  • Implement data quality, validation, and lineage controls to ensure accuracy and trustworthiness of data feeding AI workflows.
  • Support and optimize data models underpinning Power BI dashboards and AI-enabled analytics.
  • Collaborate with AI Engineers to define data contracts and ensure pipeline outputs meet solution requirements for schema, latency, and freshness.
  • Instrument data pipelines for monitoring, alerting, cost control, and performance optimization.
  • Implement data governance and security controls including access management, encryption, and compliance with organizational data policies.
  • Identify data-related risks and support mitigation strategies in collaboration with architecture and platform teams. 
Minimum Qualifications 
  • 4+ years of data engineering experience, with demonstrated ability to build and operate production data pipelines.
  • Proficiency in Python and SQL; experience with PySpark or Spark is strongly preferred.
  • Experience with Azure data services, including Azure Data Factory, Azure Synapse Analytics, Azure Data Lake Storage, and Azure SQL.
  • Familiarity with Azure AI Search, Cosmos DB, or similar services used to support AI retrieval and storage patterns.
  • Experience building and managing ETL/ELT pipelines with structured, semi-structured, and unstructured data sources.
  • Knowledge of data modeling, schema design, and indexing strategies for both analytical and AI workloads.
  • Familiarity with infrastructure-as-code and CI/CD practices for data pipeline deployment (e.g., Terraform, Azure DevOps).
  • Knowledge of data governance principles, including data cataloging, lineage, access control, and privacy requirements.
  • Knowledge of security best practices for data solutions, including encryption at rest and in transit, role-based access control, and private networking.
  • Experience with Databricks, including Delta Lake and Unity Catalog, is a plus.
  • Prior experience in professional services, engineering, or construction environments is a plus.
  • Azure or Databricks certifications (e.g., Azure Data Engineer Associate, Azure Solutions Architect Expert, Databricks Data Engineer Professional) are a plus. 
We are GEI. 
 
Some of the world’s most pressing problems – from climate change to sustainable development, to critical infrastructure and the future of our energy supply – need our brightest and diverse minds working together to create safer, more resilient communities for tomorrow.  
 
We are technical experts, collaborators, and entrepreneurs who draw from diverse backgrounds to solve our clients’ most complex challenges.  
 
With several offices across North America, we offer a range of engineering, science, and technical consulting services. Our range of expertise, project types, and culture make us the choice for top talent in the AEC industry. See all our office locations here.
 
Employee-owned. Employee-focused.  
 
As an employee-owned company, our employees support our flat leadership structure, have a say in how our business operates and benefit from our financial success. We are committed to employee growth with career development opportunities, competitive total rewards, a well-being program, flexible work arrangements and more.  Our company culture is driven by our 4 Cs – we are Client-Centered, Curious, Collaborative, and Community Minded – which support our focus on sustainability, safety, diversity, equity and inclusion. Get to know us better by visiting GEI’s career site here.
 
GEI’s Total Rewards Package Includes 
  • Market-Competitive Compensation, including Eligibility for an Annual Performance Bonus
  • Pay Range For This Position: $90,000.00 – $150,000.00/year
  • Comprehensive Benefits Program, including Medical, Dental, Vision, Life, Disability and More
  • Well-Being Program and Paid Parental Leave
  • Commuter Benefits
  • Hybrid Work Schedules and Cell Phone Stipends
  • GEI University (GEIU) with Continuing Education Assistance and Tuition Reimbursement
  • Connecting Conversation Program with a Focus on Professional Development and Opportunities for Advancement
  • Support and Financial Rewards for Publication Awards, Professional Dues, and Professional Licenses
  • Paid Holidays and Generous Paid Time Off Program
  • Rewards and Recognition
  • GEI-Funded Profit Sharing and 401(k)
  • Opportunity to be an Owner and Shareholder (Learn more here)
  • A Vibrant Culture that is Focused on Partnership, Sustainability, Giving Back to Our Communities and Diversity, Equity and Inclusion
  • And More…
PHYSICAL REQUIREMENTS 
WORK ENVIRONMENT 
  
  
  
Functional Demands:    
 
 
 
 
Sedentary
x 
Light
 
Medium
Other
 
 
Activity Level Throughout Workday (check one per row) 
Physical Activity Requirements
Occasional
(0-35% of day)
Frequent
(33-66% of day)
Continuous
(67-100% of day)
Not Applicable
Sitting
 
 
x 
 
Standing
 
x 
 
 
Walking
x 
 
 
 
Climbing
 
 
 
x 
Lifting (floor to waist level) (in pounds)
x 
 
 
 
Lifting (waist level and above) (in pounds)
x 
 
 
 
Carrying objects
x 
 
 
 
Push/pull
x 
 
 
 
Twisting
x 
 
 
 
Bending
x 
 
 
 
Reaching forward
x 
 
 
 
Reaching overhead
x 
 
 
 
Squat/kneel/crawl
x 
 
 
 
Wrist position deviation
 
x 
 
 
Pinching/fine motor skills
x 
 
 
 
Keyboard use/repetitive motion
 
 
x 
 
Taste or smell (taste=never)
 
 
 
x 
Talk or hear
 
 
x 
 
Accurate 20/40 
Very Accurate 20/20 
Not Applicable
Near Vision
 
x 
Far Vision
 
x 

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