Principal Engineer, CoCounsel
Toronto, ON · On-site
Bachelor's Degree in Computer Science, Computer Engineering, a related field, or equivalent ... Strong background in distributed systems: data modeling, API contracts, observability, resilience ...
Toronto, ON · On-site
Bachelor's Degree in Computer Science, Computer Engineering, a related field, or equivalent ... Strong background in distributed systems: data modeling, API contracts, observability, resilience ...
Toronto, ON · On-site
Bachelor's Degree in Computer Science, Computer Engineering, a related field, or equivalent ... Strong background in distributed systems: data modeling, API contracts, observability, resilience ...
Toronto, ON · Hybrid
CA$21 - CA$30/hr
Career Opportunity Role TitleSoftware Engineer Co-op Student (AI) (4-month contract)Purpose of ... Currently enrolled in a Bachelor's degree program in Computer Science, Software Engineering, Data ...
New
Toronto, ON · Hybrid
CA$21 - CA$30/hr
Career Opportunity Role TitleSoftware Engineer Co-op Student (AI) (4-month contract)Purpose of ... Currently enrolled in a Bachelor's degree program in Computer Science, Software Engineering, Data ...
New
CA$30 - CA$36/hr
This role is expected to last a 12 month contract period and is temporarily covering a leave of ... Computer skills: Proficient ability to handle office tools is necessary and experience from claims ...
CA$30 - CA$36/hr
This role is expected to last a 12 month contract period and is temporarily covering a leave of ... Computer skills: Proficient ability to handle office tools is necessary and experience from claims ...
... contract) to support and optimize data products by cleaning, preparing, and integrating data for ... Degree in Computer Science, Engineering or Management of Information Systems * 0 - 1 year of ...
... contract) to support and optimize data products by cleaning, preparing, and integrating data for ... Degree in Computer Science, Engineering or Management of Information Systems * 0 - 1 year of ...
Preferred Qualifications * BS in Construction Management, Civil Engineering, Environmental ... Proficient computer skills * Proven expertise at problem solving (identify, analyze, research ...
Preferred Qualifications * BS in Construction Management, Civil Engineering, Environmental ... Proficient computer skills * Proven expertise at problem solving (identify, analyze, research ...
Richmond Hill, ON · Hybrid
CA$59K - CA$88K/yr
Toronto, ON (Hybrid) In this fixed-term contract opportunity, you'll be based in our Toronto ... You'll work closely with Business Analysts, Developers, Project Managers, and an experienced ...
New
Richmond Hill, ON · Hybrid
CA$59K - CA$88K/yr
Toronto, ON (Hybrid) In this fixed-term contract opportunity, you'll be based in our Toronto ... You'll work closely with Business Analysts, Developers, Project Managers, and an experienced ...
New
Electrical/Computer Engineering Degree and/or Electronics related Diploma #LI-CC4 Qualifications Benefits offered are described: AMD benefits at a glance. AMD does not accept unsolicited resumes from ...
Electrical/Computer Engineering Degree and/or Electronics related Diploma #LI-CC4 Qualifications Benefits offered are described: AMD benefits at a glance. AMD does not accept unsolicited resumes from ...
CA$110K - CA$150K/yr
A degree in Law, Engineering, Finance, Technical, Economics, or Business Sciences. * Minimum of 10 ... Compensation The expected compensation for this role is $110,000 - $150,000 CAD per year, plus ...
CA$110K - CA$150K/yr
A degree in Law, Engineering, Finance, Technical, Economics, or Business Sciences. * Minimum of 10 ... Compensation The expected compensation for this role is $110,000 - $150,000 CAD per year, plus ...
CA$110K - CA$150K/yr
A degree in Law, Engineering, Finance, Technical, Economics, or Business Sciences. * Minimum of 10 ... Compensation The expected compensation for this role is $110,000 - $150,000 CAD per year, plus ...
CA$110K - CA$150K/yr
A degree in Law, Engineering, Finance, Technical, Economics, or Business Sciences. * Minimum of 10 ... Compensation The expected compensation for this role is $110,000 - $150,000 CAD per year, plus ...
Markham, ON · Hybrid
CA$147K - CA$196K/yr
Lead a team of GM employees and/or contract resources (onsite, remote, offshore) responsible for ... Bachelor's degree in Software Engineering, Computer Engineering, Computer Science, or related field ...
Markham, ON · Hybrid
CA$147K - CA$196K/yr
Lead a team of GM employees and/or contract resources (onsite, remote, offshore) responsible for ... Bachelor's degree in Software Engineering, Computer Engineering, Computer Science, or related field ...
Oshawa, ON · Hybrid
CA$147K - CA$196K/yr
Lead a team of GM employees and/or contract resources (onsite, remote, offshore) responsible for ... Bachelor's degree in Software Engineering, Computer Engineering, Computer Science, or related field ...
Oshawa, ON · Hybrid
CA$147K - CA$196K/yr
Lead a team of GM employees and/or contract resources (onsite, remote, offshore) responsible for ... Bachelor's degree in Software Engineering, Computer Engineering, Computer Science, or related field ...
Director, Electrical, Control, Computer Engineering and Human Factors (EIC) Number Required: 1 ... contracts in line with scope, schedule, effort, and quality commitments Ensure consistent ...
Director, Electrical, Control, Computer Engineering and Human Factors (EIC) Number Required: 1 ... contracts in line with scope, schedule, effort, and quality commitments Ensure consistent ...
Toronto, ON · Hybrid
$21 - $30/hr
Career Opportunity Role TitleQuality Assurance Engineer Co-op Student (4-month contract)Purpose of ... Currently enrolled in a Bachelor's program in Computer Science, Engineering, or a related field.
Toronto, ON · Hybrid
$21 - $30/hr
Career Opportunity Role TitleQuality Assurance Engineer Co-op Student (4-month contract)Purpose of ... Currently enrolled in a Bachelor's program in Computer Science, Engineering, or a related field.
Electrical/Computer Engineering Degree and/or Electronics related Diploma #LI-CC4 Benefits offered are described: AMD benefits at a glance. AMD does not accept unsolicited resumes from headhunters ...
Electrical/Computer Engineering Degree and/or Electronics related Diploma #LI-CC4 Benefits offered are described: AMD benefits at a glance. AMD does not accept unsolicited resumes from headhunters ...
Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience ... Here is a snapshot of our total rewards you can expect during your 1-year contract: * Health:
New
Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience ... Here is a snapshot of our total rewards you can expect during your 1-year contract: * Health:
New
Toronto, ON · On-site +1
$6.0K/yr
Please note that this is a contract until March 31, 2027 Who We Are At Fidelity, we've been helping ... University Degree/College Diploma, preferably in Computer Science, or equivalent work experience ...
Toronto, ON · On-site +1
$6.0K/yr
Please note that this is a contract until March 31, 2027 Who We Are At Fidelity, we've been helping ... University Degree/College Diploma, preferably in Computer Science, or equivalent work experience ...
Master's or Bachelor's degree in Computer Engineering, Computer Science or Electrical Engineering is desired #LI-TB1 #LI-Hybrid Qualifications Benefits offered are described: AMD benefits at a glance.
Master's or Bachelor's degree in Computer Engineering, Computer Science or Electrical Engineering is desired #LI-TB1 #LI-Hybrid Qualifications Benefits offered are described: AMD benefits at a glance.
Toronto, ON · On-site
Contract on a semester-by-semester basis Faculty/Department: Faculty of Applied Sciences and ... Education A completed PhD in computer science, computer engineering, cybersecurity, or a closely ...
Toronto, ON · On-site
Contract on a semester-by-semester basis Faculty/Department: Faculty of Applied Sciences and ... Education A completed PhD in computer science, computer engineering, cybersecurity, or a closely ...
A successful candidate will need to employ strong knowledge in computer technologies, leadership skills in technical areas, and SW engineering expertise as well as a strong ability to compete ...
A successful candidate will need to employ strong knowledge in computer technologies, leadership skills in technical areas, and SW engineering expertise as well as a strong ability to compete ...
Temporary Contract Work Model: Hybrid Reference code: 134303 Primary Location: Toronto, ON All ... Bachelor's degree in Computer Science, Information Technology, Computer Engineering, or a related ...
Temporary Contract Work Model: Hybrid Reference code: 134303 Primary Location: Toronto, ON All ... Bachelor's degree in Computer Science, Information Technology, Computer Engineering, or a related ...
A Computer Programmer Contract job is a temporary or project-based role where a programmer is hired for a specific duration or task. Contractors typically develop, test, and maintain software applications based on client requirements. They may work independently or through an agency, often with flexible schedules. Unlike full-time employees, contract programmers usually do not receive benefits like health insurance or paid time off. Compensation is often higher to account for this.
To thrive as a Computer Programmer Contract, you need strong programming knowledge, problem-solving skills, and typically a degree in computer science or a related field. Proficiency with programming languages such as Java, Python, or C++, experience with version control systems like Git, and familiarity with development environments are essential, while certifications such as Microsoft or Oracle developer credentials are valued. Excellent time management, communication, and the ability to quickly adapt to new projects or teams will set you apart in contract roles. These skills and qualities ensure that contract programmers can efficiently deliver high-quality solutions, quickly integrate into diverse work environments, and meet the expectations of multiple clients.
Computer Programmer Contractors often work on a variety of projects, including developing new software applications, updating existing systems, debugging code, or creating automation scripts based on client requirements. Workflows are usually managed through tools like Jira or Asana, and contractors collaborate remotely or on-site with development teams, business analysts, and project managers. Deadlines and deliverables are typically set by the client, and contractors may need to juggle multiple assignments simultaneously. The dynamic nature of contract work offers exposure to different industries and technologies, providing valuable experience and potential for career advancement.
The most popular types of Computer Programmer jobs in Toronto, ON are:
For Computer Programmer Contract jobs in Toronto, ON, the most frequently searched job titles are:
The top searched job categories for Computer Programmer Contract jobs in Toronto, ON are:

Full-time
Medical, Dental, Vision, Life, Retirement, PTO
Re-posted 23 days ago
8.8
Based on 21 frontline employees who took The Breakroom Quiz
42nd of 495 rated business services
Principal Software Engineer -CoCounsel
CoCounselis our most advanced AI offering to date - combining generative and agentic AI capabilities to help legal professionals move beyond prompting and start delegating. As a Principal Software Engineer, you will set the technical direction for the backend, AI orchestration, and identity systems that turn frontier models into reliable, secure, production-grade workflows that attorneys, in-house legal departments, and government agencies trust on real client matters every day.
This role sits at the heart of theCoCounselLegal engineering organization, partnering closely with AI/ML engineers, researchers, product, and our identity and platform teams to deliver world-class legal content and AI experiences at scale.
About the role:
In this opportunity as a Principal Software Engineer, you will:
Participate in shapingthe company's AI platform and patterns:Define patterns for building MCP servers, designing agents, novel uses of LLMs, experimentation, and scalable infrastructure. Your decisions will influence multiple product lines, not just a single feature.
Work at real production scale: Build and evolve systems that operate over millions of documents, complex and ever-changing law, privileged client data, and thousands of concurrent AI interactions from professionals doing time-sensitive work. Considering implications tocloud costs, optimizations, etc.
Small team, big surface area:Join a tight group of senior engineers and researchers shipping quickly, with direct access to product leadership and customers. Think ownership of a startup with the runway of a public company.
Technical leadership and cross-functional influence:Leadand/or designinitiatives that cut across AI, product, identity, and infrastructure.Mentor staff and senior engineers, raising the bar onAI integration practices,system design, code quality,andsecurity across the org.Be the expert in new model capabilities, collaborating closely with AI/ML engineers, researchers, designers, and PMs to translate industry improvements into reliable, user-facing workflows that legal professionals trust.Help shape the team's roadmap, technical strategy, and engineering culture - from experimentation practices to testing, rollout, and postmortems.Help define and lead the platform integration strategy across new and existing Thomson Reuters legal systems to deliver world-class content and solutions for our customers.
Identity, access, and trust:Define how autonomous agents act on a user's behalf safely: scoped delegation, least-privilege service identities, secrets management, and consistent enforcement of entitlements across documents, matters, and content repositories.Partner with security, platform, and compliance teams on multi-tenancy isolation, data residency, privilege protection, and the audit trails that legal and government customers require.Consider the design and evolution of authentication and authorization acrossCoCounselLegal - SSO/federation (SAML, OIDC, OAuth 2.0), token and session management, and fine-grained, role- and attribute-based access control (RBAC/ABAC).
Scale, reliability, and performance:Design for high-throughput, low-latency AI workloads: caching, queuing, rate-limiting, model failover, and cost/performance trade-offs.Work with large-scale data: millions of documents, retrieval and search, vector stores, and indexing strategies tailored to legal use cases.Establish and refine SLOs, observability, and incident response for AI systems that must be correct, auditable, and trustworthy in professional legal workflows.
About You:
You are a fit for the position of Principal Software Engineer if your background includes:
Bachelor's Degree in Computer Science, Computer Engineering, a related field, or equivalent experience.
Demonstrated experience building with AI - LLMs, agents, and retrieval - and a strong point of view on what "AI-native" software should look like.
Proven track record owning large, complex projects end-to-end: architecture, execution, rollout, and long-term operation.
Deep Python expertise and experience with production systems using frameworks likeFastAPI(or similar), relational databases (PostgreSQL or equivalent), and a major cloud provider (AWS preferred).
Strong background in distributed systems: data modeling, API contracts, observability, resilience patterns, and performance tuning under load.
Hands-on experience with identity and access management - designing or integrating authentication and authorization at scale (SSO, SAML, OIDC, OAuth 2.0, RBAC/ABAC, token/session management, or comparable IAM systems).
Excellent communication skills and the ability to partner with product, design, security, and ML teams in a fast-moving environment.
Preferred Skills & Experience:
Hands-on experience designing and operating agentic systems in production - tool calling, MCP servers, multi-step workflows, and orchestration around third-party and in-house LLMs (e.g., Anthropic, OpenAI), including prompt/response management, cost controls, and safety considerations.
Experience with AI-adjacent infrastructure: vector databases, embeddings, semantic search, or custom retrieval pipelines.
Opinions and experience around automated testing, reliability, and release practices for systems with non-deterministic model behavior.
#LI-ES1
What's in it For You?
Hybrid Work Model: We've adopted a flexible hybrid working environment (2-3 days a week in the office depending on the role) for our office-based roles while delivering a seamless experience that is digitally and physically connected.
Flexibility & Work-Life Balance: Flex My Way is a set of supportive workplace policies designed to help manage personal and professional responsibilities, whether caring for family, giving back to the community, or finding time to refresh and reset. This builds upon our flexible work arrangements, including work from anywhere for up to 8 weeks per year, empowering employees to achieve a better work-life balance.
Career Development and Growth: By fostering a culture of continuous learning and skill development, we prepare our talent to tackle tomorrow's challenges and deliver real-world solutions. Our Grow My Way programming and skills-first approach ensures you have the tools and knowledge to grow, lead, and thrive in an AI-enabled future.
Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing.
Culture: Globally recognized, award-winning reputation for inclusion and belonging, flexibility, work-life balance, and more. We live by our values: Obsess over our Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and Stronger Together.
Social Impact: Make an impact in your community with our Social Impact Institute. We offer employees two paid volunteer days off annually and opportunities to get involved with pro-bono consulting projects and Environmental, Social, and Governance (ESG) initiatives.
Making a Real-World Impact:We are one of the few companies globally that helps its customers pursue justice, truth, and transparency. Together, with the professionals and institutions we serve, we help uphold the rule of law, turn the wheels of commerce, catch bad actors, report the facts, and provide trusted, unbiased information to people all over the world.
About Us
Thomson Reuters informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. We serve professionals across legal, tax, accounting, compliance, government, and media. Our products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency. Reuters, part of Thomson Reuters, is a world leading provider of trusted journalism and news.
We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments. At a time when objectivity, accuracy, fairness, and transparency are under attack, we consider it our duty to pursue them. Sound exciting? Join us and help shape the industries that move society forward.
As a global business, we rely on the unique backgrounds, perspectives, and experiences of all employees to deliver on our business goals. To ensure we can do that, we seek talented, qualified employees in all our operations around the world regardless of race, color, sex/gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under applicable law. Thomson Reuters is proud to be an Equal Employment Opportunity Employer providing a drug-free workplace.
Thomson Reuters makes reasonable accommodations for applicants with disabilities, including veterans with disabilities, and for sincerely held religious beliefs in accordance with applicable law. If you reside in the United States and require an accommodation in the recruiting process, you may contact our Human Resources Department atHR.Leave-Expert@thomsonreuters.com. Disability accommodations in the recruiting process may include things like a sign language interpreter, making interview rooms accessible, providing assistive technology, or other relevant accommodations. Please note this email is not intended for general recruitment questions and we will promptly respond to inquiries regarding accommodations. More information on requesting an accommodation here.
Learn more on how to protect yourself from fraudulent job postings here.
More information about Thomson Reuters can be found on thomsonreuters.com
Get the full story on Breakroom
Sourced by ZipRecruiter