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Startup Software Developer Internship Jobs in Ontario

Sr. Software Developer

Toronto, ON · On-site

CA$110K - CA$135K/yr

About You: As a fast-growing fintech, we stay true to our startup roots. You picture yourself ... Continuously improve the quality of software through reviews, testing and refactoring * Manage and ...

QNX Systems Software Developer II

Ottawa, ON · On-site

CA$90K - CA$132K/yr

Strong foundational knowledge of software development, with a proven proficiency in C/C++ programming and real-time systems concepts gained through relevant internships, academic coursework, or ...

Previous internship, co-op, or applied project experience relevant to the role. * Advanced level C programming. Nice to haves: * Experience developing software for embedded systems or telecom ...

Ciena is seeking an Embedded Software Developer to design, develop, and maintain high-performance ... Experience: Previous internship, co-op, or applied project experience relevant to the role.

Showing results 21-40

Startup Software Developer Internship information

What is a startup software developer internship?

A Startup Software Developer Internship is a temporary position where interns work with a startup company to gain experience in software development. Interns typically assist with coding, debugging, testing, and sometimes designing software solutions under the guidance of experienced developers. Working in a startup environment often means exposure to a wide range of tasks and technologies, providing valuable hands-on learning. This type of internship is ideal for students or recent graduates looking to build their technical skills and learn how startups operate.

What are the key skills and qualifications needed to thrive as a startup software developer intern?

To thrive as a Startup Software Developer Intern, you need fundamental programming skills, familiarity with software development methodologies, and coursework or experience in computer science. Experience with version control systems like Git, and knowledge of popular frameworks or languages such as JavaScript, Python, or React, are typically expected. Strong problem-solving abilities, a collaborative mindset, and adaptability help interns excel in the dynamic and fast-paced startup environment. These skills and qualities are vital for quickly contributing to projects, learning on the job, and directly impacting the startup’s growth.

What unique challenges and learning opportunities can I expect as a startup software developer intern?

As a Startup Software Developer Intern, you'll likely work in a fast-paced and dynamic environment where you'll take on a variety of responsibilities, from coding new features to testing and deploying software. Startups often have smaller teams, so interns frequently collaborate directly with experienced developers, product managers, and even founders, giving you hands-on exposure to the full product lifecycle. You may encounter challenges such as shifting priorities, tight deadlines, and limited resources, but these situations offer valuable opportunities to develop problem-solving skills and adaptability. This role is ideal for those eager to learn quickly and make a tangible impact early in their careers.

What is the difference between Startup Software Developer Internship vs Startup Software Developer?

AspectStartup Software Developer InternshipStartup Software Developer
Required CredentialsTypically pursuing or recent graduate in CS or related fieldBachelor's or higher in CS or related field, some experience preferred
Work EnvironmentTemporary, learning-focused, mentored environmentFull-time, project-driven, collaborative environment
Employer & Industry UsageInternships offered by startups for entry-level experienceFull-time roles in startups, software development teams

The main difference is that a Startup Software Developer Internship is a temporary, learning-focused position for students or recent graduates, while a Startup Software Developer is a full-time role requiring more experience and responsibility. Internships serve as a stepping stone into the industry, whereas full-time developers contribute directly to ongoing projects and product development.

What are popular job titles related to Startup Software Developer Internship jobs in Ontario?

For Startup Software Developer Internship jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Startup Software Developer Internship jobs in Ontario look for?

The top searched job categories for Startup Software Developer Internship jobs in Ontario are:

What cities in Ontario are hiring for Startup Software Developer Internship jobs?

Cities in Ontario with the most Startup Software Developer Internship job openings:

Senior Software Engineer/ Software Developer (Backend)

Sony Interactive Entertainment (SIE)

Waterloo, ON • On-site

CA$141K - CA$212K/yr

Full-time

Posted 20 days ago


Job description

Why Sony Interactive Entertainment?

Sony Interactive Entertainment isn't just the Best Place to Play - it's also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we're part of a proud legacy of innovation and excellence. SIE is a dynamic technology company, delivering cutting-edge hardware and network services to more than 100 million people and an entertainment leader, home to some of the most beloved and recognizable intellectual properties (IP) in the world. Our role at SIE is to create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity.

Senior Software Engineer, BackendWaterloo, ON

Build what's next for players.

We're a startup inside Sony PlayStation: fast-moving, experimental, and highly ambitious, while backed by the scale, resources, and trust of Sony Interactive Entertainment.

We're building new mobile and web experiences that help gamers connect, discover, and play together in better ways. This is a rare opportunity to build at startup speed and deliver significant impact inside one of the largest gaming companies in the world.

We are seeking a Senior Backend Software Engineer to help define the architecture, services, data models, and technical standards that power our new consumer experiences.

Responsibilities

  • Define and evolve the backend architecture for highly available, scalable consumer applications across mobile and web.
  • Design, build, test, deploy, and operate reliable backend services and APIs.
  • Design data models and storage strategies across relational, non-relational, caching, and event-driven systems.
  • Make thoughtful architectural decisions related to scalability, consistency, availability, latency, security, and cost.
  • Drive performance optimization, service reliability, observability, monitoring, and incident response best practices.
  • Establish coding standards, testing strategies, deployment patterns, and development practices that raise the quality bar for backend engineering.
  • Partner with product managers, designers, and client engineers to translate product requirements into maintainable technical solutions.
  • Mentor engineers and act as a multiplier for backend development expertise across the broader team.
  • Collaborate with security, privacy, and platform teams to ensure systems meet appropriate data protection and compliance requirements.

Requirements

  • 5+ years of professional software development experience building and operating backend services in production.
  • BS/MS degree in Computer Science, Software Engineering, or equivalent practical experience.
  • Proficiency in server-side development (Node.js with TypeScript preferred).
  • Experience with relational and non-relational databases, including data modelling, indexing, transactions, and performance optimization (PostgreSQL preferred).
  • Demonstrated ability to design and build GraphQL and REST APIs.
  • Familiarity with caching, message queues, event streams, and asynchronous processing systems.
  • Solid understanding of cloud infrastructure, containerized services, CI/CD pipelines, and infrastructure as code (IaC).
  • Hands-on experience building and operating production systems on AWS, including compute, storage, networking, databases, and IAM.
Bonus
  • A track record of building social, community, gaming, or other consumer products.
  • Understanding of real-time communication systems, including messaging, presence, notifications, and activity feeds.
  • Experience designing social graphs, recommendation systems, content discovery services, or personalization platforms.
  • Experience with trust and safety, content moderation, abuse prevention, or user reporting systems.
  • Previous experience at an early-stage startup or on a zero-to-one product team.

At SIE, we consider several factors when setting each role's base pay range, including the competitive benchmarking data for the market and geographic location.
Please note that the base pay range may vary in line with our hybrid working policy and individual base pay will be determined based on job-related factors which may include knowledge, skills, experience, and location.

The estimated Ontario base pay range for this role is listed below.
$141,900-$212,900 CAD

Please note, Sony Interactive Entertainment conducts background checks at the offer stage for all new employees (which may include criminal background checks for some roles) and will need to process personal information to support these checks.

Please refer to ourCandidate Privacy Noticefor more information about what personal information we collect, how we use it, who we share it with, and your data protection rights.

Equal Opportunity Statement:

Sony is an Equal Opportunity Employer. All persons will receive consideration for employment without regard to gender (including gender identity, gender expression and gender reassignment), race (including colour, nationality, ethnic or national origin), religion or belief, marital or civil partnership status, disability, age, sexual orientation, pregnancy, maternity or parental status, trade union membership or membership in any other legally protected category.

We strive to create an inclusive environment, empower employees and embrace diversity. We encourage everyone to respond.

Sony Interactive Entertainment is a Fair Chance employer and qualified applicants with arrest and conviction records will be considered for employment.