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Java Developer Startup Jobs in Ontario (NOW HIRING)

Acceldata

Field Engineering Co-Op

Kitchener, ON

CA$20 - CA$30/hr

Gain valuable experience at a fast-growing tech startup in Canada. * Work alongside senior field ... Strong programming skills in languages such as Java, Scala, and Python.Knowledge of data structures ...

Acceldata

Sales Engineering Co-Op

Kitchener, ON

CA$20 - CA$30/hr

Gain valuable experience at a fast-growing tech startup in Canada. * Work on real-world projects ... Strong programming skills in languages such as Java, Scala, and Python.Knowledge of data structures ...

NimbleRx

Senior Data Engineer

Toronto, ON

We are a fast-growing, technology-first startup driven by perfecting the patient and pharmacist ... The skills and willingness to work on the services around the data layer (Java, Spring Boot)

New

Signal 1

Senior Full Stack SoftwareEngineer

Toronto, ON · On-site

Director of Application Engineering Signal 1 helps health systems accelerate AI adoption with a ... Signal 1 is a 30-person, well-funded and rapidly growing startup with strong product market fit and ...

CIMA+

System Integrator

Guelph, ON · Hybrid

... SAT), site startup, commissioning, training, troubleshooting, and provide ongoing support ... Experience with Java programming, JavaScript, CSS, RDBMS development (MySQL, SQL, Oracle, etc ...

CIMA+

System Integrator

Sudbury, ON · Hybrid

... SAT), site startup, commissioning, training, troubleshooting, and provide ongoing support ... Experience with Java programming, JavaScript, CSS, RDBMS development (MySQL, SQL, Oracle, etc ...

CookUnity

Staff Data Engineer

Toronto, ON

Proficient in Java, Scala, or Python, with deep expertise in data processing tech and in writing ... Past experience working in a rapid growth company or an early stage startup environment. * A ...

ShyftLabs

Technical Lead

Toronto, ON · Hybrid

CA$130K - CA$170K/yr

The Opportunity We're an ambitious Toronto-based startup building data-driven products that operate ... Set the Bar for Engineering: Define and enforce best practices around code quality, CI/CD ...

NimbleRx

Senior Backend Engineer

Toronto, ON · On-site

CA$175K - CA$230K/yr

We are a fast-growing, technology-first startup driven by perfecting the patient and pharmacist ... Rich development experience with Java, Spring, and SQL * Experience developing scalable, customer ...

NimbleRx

Senior Fullstack Engineer

Toronto, ON · On-site

CA$175K - CA$230K/yr

We are a fast-growing, technology-first startup driven by perfecting the patient and pharmacist ... Rich development experience with Java / Spring Boot, React, ECMAScript standard and SQL (MySQL)

CookUnity

Staff Data Engineer

Toronto, ON

Proficient in Java, Scala, or Python, with deep expertise in data processing tech and in writing ... Past experience working in a rapid growth company or an early stage startup environment. * A ...

ShyftLabs

Tech Lead / Solution Architect

Toronto, ON

Guide engineers through architectural decisions and design reviews. * Coordinate across globally ... A startup mindset: adaptable, execution-focused, comfortable owning ambiguity end-to-end. Nice to ...

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Java Developer Startup information

See Ontario salary details

$35.5K

$127.9K

$173K

How much do java developer startup jobs pay per year?

As of May 29, 2026, the average yearly pay for java developer startup in Ontario is $127,888.00, according to ZipRecruiter salary data. Most workers in this role earn between $98,000.00 and $156,000.00 per year, depending on experience, location, and employer.

What is a Java Developer Startup job?

A Java Developer Startup job involves designing, developing, and maintaining Java-based applications in a fast-paced startup environment. Developers work on scalable solutions, collaborate with cross-functional teams, and adapt to evolving product requirements. Unlike corporate roles, startup jobs often require versatility, problem-solving skills, and the ability to work with limited resources.

What are the key skills and qualifications needed to thrive in the Java Developer Startup position, and why are they important?

A successful Java Developer in a startup environment should have strong proficiency in Java, object-oriented programming principles, and experience with frameworks like Spring or Hibernate, often backed by a degree in computer science or a related field. Familiarity with version control systems (like Git), CI/CD pipelines, and cloud platforms is highly valued, and industry certifications such as Oracle Certified Professional can be advantageous. Soft skills like adaptability, proactive problem-solving, and clear communication help developers collaborate in small, fast-paced teams. These competencies are essential for quickly delivering high-quality software and driving innovation in the dynamic startup landscape.

What kind of work environment and team structure can I expect as a Java Developer in a startup?

As a Java Developer in a startup, you'll typically work in a small, agile team where roles can be fluid and collaboration is highly encouraged. You may have the opportunity to work closely with product managers, designers, and other developers, allowing for greater input into the overall direction of the product. Daily responsibilities often extend beyond coding to include brainstorming sessions, code reviews, and quick iteration based on user feedback. The environment is fast-paced, offering opportunities for rapid skill development and taking on new responsibilities as the company grows. This setting is ideal for those who enjoy problem-solving, continuous learning, and making a direct impact on the product and business.
More about Java Developer Startup jobs
What are popular job titles related to Java Developer Startup jobs in Ontario? For Java Developer Startup jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Java Developer Startup jobs in Ontario look for? The top searched job categories for Java Developer Startup jobs in Ontario are:
Java Developer Startup jobs near you
Infographic showing various Java Developer Startup job openings in Ontario as of May 2026, with employment types broken down into 91% Full Time, and 9% Contract. Highlights an 46% In-person, 18% Hybrid, and 36% Remote job distribution, with an average salary of $127,888 per year, or $61.5 per hour.
Field Engineering Co-Op

Field Engineering Co-Op

Acceldata

Kitchener, ON

CA$20 - CA$30/hr

Other

Posted 21 days ago

Job description

ABOUT US
Acceldata is the market leader in Enterprise Data Observability. Founded in 2018, Silicon Valley-based Acceldata has developed the world's first Enterprise Data Observability Platform to help build and operate great data products.
 
Enterprise Data Observability is at the intersection of today's hottest and most crucial technologies such as AI, LLMs, Analytics, and DataOps. Acceldata provides mission-critical capabilities that deliver highly trusted and reliable data to power enterprise data products.
 
Delivered as a SaaS product, Acceldata's solutions have been embraced by global customers, such as HPE, HSBC, Visa, Freddie Mac, Manulife, Workday, Oracle, PubMatic, PhonePe (Walmart), Hersheys, Dun & Bradstreet, and many more. Acceldata is a Series-C funded company whose investors include Insight Partners, March Capital, Lightspeed, Sorenson Ventures, Industry Ventures, and Emergent Ventures.

Summary

As a Field Engineer Co-op at Acceldata, you'll be working hands-on with complex distributed systems, helping real customers solve deep infrastructure and data observability challenges.

You'll get to:

  • Shadow and contribute to field-engineering solutions and architecture reviews.
  • Dive into diagnostics around performance, scalability, and deployment for large-scale data environments.
  • Learn how we enable observability across Data, Kubernetes, cloud-native platforms, and Open Source components like spark, hive, kafka etc.
  • Collaborate directly with the Field Architects to troubleshoot issues and propose improvements.
  • Learn designing, developing and deploying reusable automation and AI frameworks to enable observability of various data ecosystems and platforms.
  • Build context across Sales, Product, and Customer Success, understanding how real-world engineering meets customer expectations.
  • See what it means to turn technical solutions into customer value at scale.

This role is built for future Sales Engineers, Solution Architects, or Platform Engineers who want early exposure to enterprise-scale engineering problems. 

If you're excited by debugging distributed systems, working close to customer impact, and seeing how world-class engineering drives business outcomes, this Co-Op is built for you.

This is a 4 month assignment, 40 hours per week, with required on-site presence at 151 Charles Street West, inside the Communitech Innovation Center.
WHY INTERN WITH US
  • Gain valuable experience at a fast-growing tech startup in Canada.
  • Work alongside senior field engineers and architects to solve complex platform reliability and data operations challenges.
  • Gain hands-on experience with cloud native and distributed systems like Hadoop, Spark, Kafka, Hive, and Kubernetes.
  • Get mentorship from engineers and architects who've scaled infrastructure at leading tech companies.
  • Opportunity for future employment and career growth. It's a launchpad into high-impact, customer-facing technical roles.
  • Join the team that coined the term Data Observability.
RESPONSIBILITIES
  • Collaborate with the field engineering team to write, test, and deploy software solutions using advanced Java or Scala programming.
  • Commit to continuous learning and professional development, adapting to new tools, languages, and platforms as required.
  • This position is perfect for individuals who are passionate about technology, eager to solve complex business problems, and possess a strong customer-centric mindset.
REQUIREMENTS
  • Currently pursuing a degree in Computer Science, Software Engineering, or a related field at the University of Waterloo.
  • Strong programming skills in languages such as Java, Scala, and Python.Knowledge of data structures, algorithms, and software development principles.
  • Experience with distributed computing, big data technologies, and cloud platforms is a plus.
  • Excellent problem-solving and analytical abilities.
  • Strong understanding and hands-on experience with Kubernetes, including deploying, managing, and scaling applications.
  • Familiarity with Kubernetes concepts such as Pods, Services, Deployments, StatefulSets, ConfigMaps, and Secrets.
  • Understanding of the big data ecosystem, including data ingestion, processing, and storage technologies.
  • Strong communication skills, both verbal and written, to effectively collaborate with cross-functional teams.
  • Proven ability to work well in a team environment, contributing to a collaborative culture.
  • Enthusiasm to learn and adapt to new technologies.
Application Documents Required
  • Co-op Work History
  • Resume
  • Grade Report
Compensation and Benefits Information
  • Apple Mac Equipment
  • Catered lunch once a week in the office
  • Gym with onsite showers
  • Games Rooms
  • Designated bicycle room 
  • Drinks and snacks
$20 - $30 an hour
Acceldata is an equal-opportunity employer
 
At Acceldata, we are committed to providing equal employment opportunities regardless of job history, disability, gender identity, religion, race, color, caste, marital/parental status, veteran status, or any other special status. We stand against the discrimination of employees and individuals and are proud to be an equitable workplace that welcomes individuals from all walks of life if they fit the designated roles and responsibilities.
 
#LifeAtAcceldata is all about working with some of the best minds in the industry and experiencing a culture that values an 'out-of-the-box' mindset. If you want to push boundaries, learn continuously, and grow to be the best version of yourself, Acceldata is the place to be! 
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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