1

Internship Java Developer Jobs in Toronto, ON (NOW HIRING)

AI Engineer

Mississauga, ON · On-site +1

CA$94K - CA$136K/yr

Mentor and coach junior AI engineers, software engineers, data scientists, and interns while ... Strong software engineering and programming skills in Python or Java or other enterprise ...

AI Engineer

Brampton, ON · On-site +1

CA$94K - CA$136K/yr

Mentor and coach junior AI engineers, software engineers, data scientists, and interns while ... Strong software engineering and programming skills in Python or Java or other enterprise ...

AI Engineer

Maple, ON · On-site +1

CA$94K - CA$136K/yr

Mentor and coach junior AI engineers, software engineers, data scientists, and interns while ... Strong software engineering and programming skills in Python or Java or other enterprise ...

AI Engineer

Unionville, ON · On-site +1

CA$94K - CA$136K/yr

Mentor and coach junior AI engineers, software engineers, data scientists, and interns while ... Strong software engineering and programming skills in Python or Java or other enterprise ...

AI Engineer

Toronto, ON · On-site +1

CA$94K - CA$136K/yr

Mentor and coach junior AI engineers, software engineers, data scientists, and interns while ... Strong software engineering and programming skills in Python or Java or other enterprise ...

Contribute to CI/CD pipelines and DevOps practices for AI and platform engineering teams ... Java * C# * Understanding of software engineering fundamentals, including: * Data structures and ...

Mentor junior engineers and interns * Promote best practices and high-quality development ... Rich development experience with Java, Spring, and SQL * Experience developing scalable, customer ...

Mentor junior engineers and interns * Promote best practices and high-quality development ... Rich development experience with Java / Spring Boot, React, ECMAScript standard and SQL (MySQL)

... Science, Engineering, or related field or equivalent work experience * Expert in web security ... Familiarity with development technologies like Docker, CDK, Terraform, Java, Python, React, GraphQL ...

Showing results 21-37

Internship Java Developer information

See Toronto, ON salary details

$9

$47

$77

How much do internship java developer jobs pay per hour?

As of Sep 1, 2026, the average hourly pay for internship java developer in Toronto, ON is $47.94, according to ZipRecruiter salary data. Most workers in this role earn between $36.71 and $60.10 per hour, depending on experience, location, and employer.

What are the qualifications to get a Java developer internship?

The qualifications to become a Java developer intern include that you are pursuing at least a bachelor’s degree in engineering, computer science, or a similar degree. Experience working with different computer languages is beneficial when you are applying for positions. Having some experience with the following can be helpful: C#, NET, HTML5, Java, VB, SQL, MVC, or data analytics. Strong communication skills can help you to stand out above other applicants. Experience with Java development, Spring Framework, and relational databases can also help you applying for a Java developer internship.

What is an internship Java developer?

Internship Java Developers are students or recent graduates who work in a company to gain practical experience in Java programming. They assist in developing, testing, and maintaining Java applications under the supervision of experienced developers. This role helps interns apply their academic knowledge to real-world projects, learn industry best practices, and improve their coding and teamwork skills. Internships often serve as a valuable stepping stone to full-time software development positions.

What kinds of projects and tasks can an internship Java developer expect to work on during their internship?

As an Internship Java Developer, you can expect to work on a variety of projects that help you build practical skills, such as developing new features, fixing bugs, writing unit tests, or assisting with code reviews. You’ll likely collaborate closely with experienced developers and participate in team meetings or agile sprints, which provide valuable exposure to real-world software development processes. Projects may range from maintaining existing applications to contributing to new product development, giving you a well-rounded experience in Java programming. This role is designed to help you learn industry best practices and gain hands-on experience while receiving mentorship and feedback from your team.

What are the key skills and qualifications needed to thrive as an internship Java developer, and why are they important?

To thrive as an Internship Java Developer, you need a solid understanding of Java programming, object-oriented principles, and basic software development concepts, often supported by coursework or personal projects. Familiarity with version control systems like Git, integrated development environments (IDEs) such as Eclipse or IntelliJ IDEA, and basic knowledge of databases are typically required. Strong problem-solving skills, eagerness to learn, and effective communication help interns adapt and contribute within development teams. These competencies enable you to quickly integrate into projects, support code quality, and grow professionally in a fast-paced environment.

What is the difference between Internship Java Developer vs Junior Java Developer?

AspectInternship Java DeveloperJunior Java Developer
Required CredentialsTypically pursuing or recently completed a degree in Computer Science or related fieldBachelor's degree in Computer Science or related field, with some practical experience
Work EnvironmentTraining-focused, supervised environment, often part-time or temporaryFull-time, ongoing employment with more responsibilities
Employer & Industry UsageInternships offered by tech companies, startups, and IT departments for skill developmentEntry-level position in software development teams across various industries

The main difference between an Internship Java Developer and a Junior Java Developer is experience and responsibility. Internships are designed for students or recent graduates gaining initial exposure, while Junior Java Developers have more hands-on work experience and are expected to contribute more independently to projects.

More about Internship Java Developer jobs

What are the most commonly searched types of Java Developer jobs in Toronto, ON?

The most popular types of Java Developer jobs in Toronto, ON are:

What cities near Toronto, ON are hiring for Internship Java Developer jobs?

Cities near Toronto, ON with the most Internship Java Developer job openings:

Infographic showing various Internship Java Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 80% Full Time, and 20% Contract. Highlights an 30% In-person, 20% Hybrid, and 50% Remote job distribution, with an average salary of $99,716 per year, or $47.9 per hour.

AI Engineer

Sanofi EU

Mississauga, ON • On-site, Remote

CA$94K - CA$136K/yr

Full-time

Life

Posted 5 days ago


Job description

Reference Number: R2868511 

Position title:AI Engineer

Department: Commercial Data Science

Location: Toronto,ON (Flexible working - 40% home office / week)

About the job

Ready to push the limits of what’s possible? Join Sanofi in one of our corporate functions and you can play a vital part in the performance of our entire business while helping to make an impact on millions around the world.  

About the Sanofi Digital:

We are an innovative global healthcare company, driven by one purpose: we chase the miracles of science to improve people’s lives. Our team, across some 100 countries, is dedicated to transforming the practice of medicine by working to turn the impossible into the possible. We provide potentially life-changing treatment options and life-saving vaccine protection to millions of people globally, while putting sustainability and social responsibility at the centre of our ambitions.   

Sanofi’s Digital organization’s mission is to transform Sanofi into a data-first and AI first organization by empowering everyone with good data. Through custom developed AI products built on world class data foundations and platforms, the team builds value and a unique competitive advantage that scales across our markets, R&D and manufacturing sites. The team is located in major hubs in Paris, Lyon, Barcelona, Cambridge, Toronto, Budapest and Hyderabad. Join a dynamic, fast paced and talented team, with world class mentorship, using AI to chase the miracle of science. 

We are seeking a skilled AI Engineer to drive innovation and impact at the intersection of AI and Commercial operations. This role will be a part of the Digital Commercial Advanced Analytics and AI team, which operates under the Digital Global Business Units and is an integral part of Sanofi Digital Organization.

About Sanofi

We’re an R&D-driven, AI-powered biopharma company committed to improving people’s lives and delivering compelling growth. Our deep understanding of the immune system – and innovative pipeline – enables us to invent medicines and vaccines that treat and protect millions of people around the world. Together, we chase the miracles of science to improve people’s lives. 
 

Main Responsibilities:

  • Design, develop, deploy, and support scalable Generative AI and Agentic AI solutions aligned with strategic priorities across Sanofi's Global Business Units

  • Architect and implement Retrieval-Augmented Generation (RAG) solutions, multi-agent systems, and AI copilots leveraging enterprise data and knowledge assets

  • Collaborate closely with product owners, business stakeholders, architects, data scientists, data engineers, and software engineers to deliver AI products that create measurable business value

  • Work on prioritized impactful business use cases such as

  • Agentic AI powered Market Research & Competitive Intelligence platform

  • Autonomous agents for omnichannel engagement

  • AI & GenAI driven transformation of market access and payer strategies

  • Conversational AI for data interactions and insights (Talk-to-data capabilities)

  • Development of unified platform of sales, marketers and MSL users powered by multi-agent systems

  • Enhancing the patient journey through intelligent and personalized support

  • Design reusable AI components, frameworks, libraries, and services that accelerate enterprise AI solution development

  • Build and optimize agentic workflows, prompt engineering strategies, orchestration frameworks, and tool integrations to improve AI application performance and reliability

  • Develop and maintain production-ready code following AI engineering best practices, including testing, CI/CD, observability, and documentation standard

  • Contribute to the evolution of AI platform, and enterprise data foundation strategies

  • Monitor, evaluate, and continuously improve AI application quality, performance, scalability, and user adoption

  • Ensure AI solutions comply with Responsible AI, security, privacy, governance, and regulatory requirements

  • Stay current with emerging AI technologies, foundational models, frameworks, and engineering practices, and identify opportunities to incorporate innovations into existing products and platforms

  • Communicate technical concepts, architectural decisions, and solution outcomes effectively to both technical and business audiences

  • Mentor and coach junior AI engineers, software engineers, data scientists, and interns while fostering engineering excellence and knowledge sharing

About you

Required Qualifications:

  • Master's or PhD in Computer Science, Artificial Intelligence, Machine Learning, Software Engineering, Data Science, or a related quantitative discipline

  • 3+ years of experience designing, building, and deploying AI/ML solutions in production environments, with at least 2+ years of hands-on experience developing GenAI, LLM, RAG, or Agentic AI applications

  • Strong software engineering and programming skills in Python or Java or other enterprise programming languages SQL/NoSQL query, familiarity with Spark, REST APIs, Golang, NodeJS, Angular, Typescript etc.

  • Experience developing AI applications using modern frameworks and libraries such as LangChain, LangGraph, Transformers, and vector database technologies

  • Strong understanding of agentic AI architectures, multi-agent systems, prompt engineering, tool/function calling, workflow orchestration, and AI application evaluation frameworks

  • Proficiency working with structured, semi-structured, and unstructured data stored in enterprise platforms including Snowflake, Pinecone, object stores (e.g., Snowflake, AWS DocumentDB, S3, AWS RDS) or similar databases

  • Experience developing and deploying production-grade AI applications with a focus on scalability, reliability, observability, security, and performance optimization

  • Understanding of AI/ML lifecycle management, including model deployment, monitoring, evaluation, governance, and continuous improvement practices

  • Experience working with cloud platforms such as AWS, or GCP, leveraging cloud-native AI, data, and application services

  • Experience with containerization and modern engineering tools such as Docker, Kubernetes (AWS EKS/ECR/Eventbridge), CI/CD pipelines, and source control platforms (GitHub, DevOps)

  • Familiarity with DevOps tooling like SonarQube, Checkmarx, Artifactory, AWS CloudWatch, Datadog, Jfrog, Grafana, Thanos, Prometheus

  • Experience integrating AI solutions with enterprise systems through REST APIs, microservices, and event-driven architectures

  • Knowledge of regulatory, compliance and ethical considerations in AI/GenAI

  • Nice to be already involved in an Agile/Scrum environment and Comfortable utilizing tools like Jira & Confluence

Functional Skills:

  • Ability to communicate complex AI, GenAI, and Agentic AI concepts effectively to both technical and non-technical stakeholders

  • Understanding of end-to-end AI product development initiatives and collaborating across engineering, product, business, data, and platform teams

  • Ability to define technical architecture, identify dependencies, manage risks, and resolve blockers across cross-functional Agile teams

  • Strong problem-solving, systems-thinking, and solution design capabilities with a focus on delivering measurable business outcomes

  • Experience mentoring junior AI engineers, data scientists, or technical team members

  • Excellent written and verbal communication skills, including technical documentation, architecture reviews, and leadership-level presentations

  • Ability to translate business requirements into scalable, maintainable, and production-ready AI solutionsExperience working in global, cross-functional, and multicultural teams within complex enterprise organizations

  • Nice to have professional certification such as AWS certified ML Engineer or SnowPro Data Scientist Certification

  • Ability to thrive in a fast-paced, rapidly evolving AI landscape while managing multiple priorities and stakeholder expectations

  • Nice to have experience in Life Sciences, Healthcare, Commercial Operations, or regulated industries

  • Fluent in English; additional languages are a plus

When joining our team, you will experience:

  •  An international work environment, in which you can develop your talent and realize ideas and innovations within a competent team 

  • An attractive, market-oriented salary and other benefits 

  • Flexible home office policy, with a possibility to work up to 40% of time from home / where you can easily schedule your office days 

  • Collective life and accident insurance 

  • Enjoy a thoughtful, well-crafted rewards package that recognizes your contribution and amplifies your impact

  • Exposure to training and certification pathways for technical and functional skills from AWS, SnowFlake, Informatica and others 

  • An individual and well-structured introduction and training of new employees and we will dedicate a Buddy for you to better navigate in your first weeks 

  • Your professional and personal development will be supported purposefully

Why Choose Us?

  • Bring the miracles of science to life alongside a supportive, future-focused team. 

  • Discover endless opportunities to grow your talent and drive your career, whether it’s through a promotion or lateral move, at home or internationally. 

  • Enjoy a thoughtful, well-crafted rewards package that recognizes your contribution and amplifies your impact. 

  • Take good care of yourself and your family, with a wide range of health and wellbeing benefits including high-quality healthcare, prevention and wellness programs. 

This position is for a new vacant role that is now open for applications. 

AI Usage  

"Artificial Intelligence” refers to any systems that use automated processes, including algorithms and machine learning, to analyze data and make predictions, inferences, decisions, or recommendations without direct human involvement. These systems may process personal information to identify patterns, improve services, or support decision-making. The Company may use Artificial Intelligence for purposes including, but not limited to, resume screening and hiring, scheduling interviews or meetings, conducting surveys, matching skills with potential job openings, interview scoring, ensuring compliance with regulations applicable to our industry, and activities related to performance evaluation. Information collected and processed by the Company’s Artificial Intelligence systems may include the personal information detailed above and calendar availability. It excludes the information collected and processed for monitoring purposes. You should contact Human Resources if you have a question or concern regarding your personal information. You can also contact Canada’s Privacy Officer via Sanofi’s data subject request portal,  Data Subject Rights Webform. The Data Subject Rights Webform can also be used to request access or correction of your personal information and file a complaint.   

Sanofi is an equal opportunity employer committed to diversity and inclusion. Our goal is to attract, develop and retain highly talented employees from diverse backgrounds, allowing us to benefit from a wide variety of experiences and perspectives. We welcome and encourage applications from all qualified applicants.  Accommodations for persons with disabilities required during the recruitment process are available upon request. 

#GD-SP ​ 
#LI-SP 

#LI-Hybrid

#DBBCA

All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs, and additional benefits information can be found here.

Toute compensation sera déterminée en fonction de l'expérience démontrée. Les employés peuvent être admissibles à participer aux programmes d'avantages sociaux de l'entreprise. Des informations supplémentaires sur les avantages sociaux peuvent être trouvées ici.