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Java software developer Jobs in Keswick, ON

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Java software developer • keswick on

Last updated: 1 day ago
Senior Java Engineer

Senior Java Engineer

SuperAnnotateKeswick, Ontario, CA
Remote
Full-time
As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality ref...Show moreLast updated: 1 day ago
Senior Product Manager (GTM Strategy)

Senior Product Manager (GTM Strategy)

mParticleRemote, Ontario Canada
Remote
Full-time
The Successful candidate will : .Product GTM : Spearhead product launches with meticulously planned go-to-market strategies, ensuring seamless orchestration and measurable impact.Drive Product Adoptio...Show moreLast updated: 30+ days ago
Stock Trader Job in Cat Lake, ON | Part Time

Stock Trader Job in Cat Lake, ON | Part Time

Maverick TradingCat Lake, Kenora District, ON P0V, Canada
Part-time
Stock Trader Job at Maverick Trading.Maverick Trading, a 26-year old proprietary trading firm is looking to hire experienced and entry-level equity and equity and option traders.We are a global tea...Show moreLast updated: 30+ days ago
Tax Professional - Work from Home

Tax Professional - Work from Home

IntuitBradford West Gwillimbury, ON, CA
Remote
Full-time
Intuit is the global financial technology platform that powers prosperity for the people and communities we serve.With approximately 100 million customers worldwide using products such as TurboTax,...Show moreLast updated: 30+ days ago
Facilities Assessment Consultant

Facilities Assessment Consultant

GordianRemote, Ontario, Canada
Remote
Full-time
Independently review client documentation in preparation and during inspection process (drawings, studies, maintenance logs, etc. Perform visual inspections of building systems using professional ex...Show moreLast updated: 30+ days ago
Office 365 Engineer — Remote 1-Year Contract

Office 365 Engineer — Remote 1-Year Contract

Harris ComputerGeorgina, ON, CA
Remote
Full-time
A leading software solutions provider is seeking a Microsoft Office 365 Engineer.This remote opportunity involves managing and optimizing Office 365 services, collaborating with IT teams, and provi...Show moreLast updated: 25 days ago
Senior Highway Designer

Senior Highway Designer

McIntosh PerryOntario, CA
Full-time
Are you ambitious and looking to make the right move in your career? Now is the perfect time to join Egis.Egis is experiencing substantial growth in North America, highlighted by our recent acquisi...Show moreLast updated: 30+ days ago
Senior Developer (Data)

Senior Developer (Data)

Farm Credit CanadaVarious FCC office s in Ontario may be considered
Full-time
Salary Range (plus eligible to receive a performance based incentive, applicable to position) : .Experienced data developer needed. Using your experience in Agile Scrum methodology and AWS data pipel...Show moreLast updated: 30+ days ago
iOS Developer Intern / Co-op (Remote)

iOS Developer Intern / Co-op (Remote)

TorontoJobsREMOTE, ON
Remote
Part-time +1
OS Developer Intern / Co-op (Remote).Guhuza is seeking an iOS Developer to join our remote team and contribute to the development of our iOS app. As an iOS Developer at Guhuza, you will play a cruci...Show moreLast updated: 30+ days ago
Assembly Program Manager (Process / Automation Engineering)

Assembly Program Manager (Process / Automation Engineering)

CB CanadaBradford West Gwillimbury, Ontario, Canada
Full-time
Flex-N-Gate is a leading manufacturer and supplier of components for the automotive industry, recently ranked 10.Top North American Suppliers in “Automotive News. A growing and vital company, Flex-N...Show moreLast updated: 30+ days ago
Industrial Control Systems Technologist

Industrial Control Systems Technologist

freelance.caOntario Centre (Queensville), Canada
Full-time
Thanks to our teams' energy, commitment and ideas, we are reinventing how the world builds to make Canada greener and smarter for all. Industrial Control Systems Technologist.The primary objective o...Show moreLast updated: 30+ days ago
  • Promoted
Finance Manager

Finance Manager

Vaco by HighspringEast Gwillimbury, ON, CA
Permanent
Our client is a private software company.Finance Manager to join their team!.Exposure to multiple operating companies (100+ globally). Close collaboration with Finance Directors and Operating Partne...Show moreLast updated: 30+ days ago
JPC -1459 - Senior Software Engineer

JPC -1459 - Senior Software Engineer

ITS GlobalOntario
Full-time
Our client is looking for a Senior Software Engineer to join their team.The ideal candidate should have : .Has 8+ years of experience developing software, with a track record of successful production...Show moreLast updated: 30+ days ago
Application Support Analyst

Application Support Analyst

Juventus ConsultingOntario
Full-time
We are looking for an Application Developer both Java and.The split would be 75% Java work and 25%.This is 1 year contract, work could be out of Toronto or Waterloo. The required candidate will be a...Show moreLast updated: 30+ days ago
iOS Engineer III, Feeds / Business Experience

iOS Engineer III, Feeds / Business Experience

redditRemote, Ontario, Canada
Remote
Full-time
Reddit is a community of communities.It’s built on shared interests, passion, and trust and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote...Show moreLast updated: 30+ days ago
Principal Software Engineer

Principal Software Engineer

ServiceTitanCanada Ontario
Remote
Full-time
We’re looking for someone to lead all technical aspects of an engineering team at ServiceTitan.You must have a strong background in responsive web application development, building distributed syst...Show moreLast updated: 30+ days ago
Assistant Store Manager

Assistant Store Manager

Beyond Bilingual Inc.Bradford West Gwillimbury, ON, CA
Full-time
Location : Bradford, ON, On-site.Family-owned company that gained their reputation for quality and built itself a household name in Europe. They provide high quality leisure products that not only lo...Show moreLast updated: 30+ days ago
Intermediate Programmer Analyst

Intermediate Programmer Analyst

Medavie Blue CrossON, CA
Full-time +1
What makes us a different kind of employer?.As a national health solutions partner, Medavie is committed to improving the wellbeing of Canadians — and in our digital-first culture, technology is ke...Show moreLast updated: 30+ days ago
L2_Deskside Support

L2_Deskside Support

Tata Consultancy ServicesOntario, CA
Full-time
Responsible for providing Tier 2 (L2) support to customers by researching, diagnosing, troubleshooting issues, and resolving incidents that can not be resolved by Tier 1 (L1) and providing support ...Show moreLast updated: 30+ days ago
People also ask
Senior Java Engineer

Senior Java Engineer

SuperAnnotateKeswick, Ontario, CA
1 day ago
Job type
  • Full-time
  • Remote
Job description

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality reference implementations and reasoning steps. You will assess solutions for accuracy, clarity, and adherence to the prompt; identify errors in logic, performance, or design; fact-check technical information; write high-quality explanations and model solutions that demonstrate correct methods; and rate and compare multiple AI responses based on correctness and reasoning quality.

This fully remote, hourly paid contractor role is with SME Careers, a fast-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies and foundation model labs, where your Java expertise will directly help improve the world’s premier AI models.

Key Responsibilities :

  • Develop AI Training Content : Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
  • Optimize AI Performance : Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
  • Ensure Model Integrity : Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Your Profile :

  • Bachelor’s degree or higher in Computer Science, Software Engineering, or a closely related technical field.
  • 5+ years of professional software engineering experience, with significant hands-on work in Java on production systems.
  • Deep understanding of core Java, concurrency primitives, and the Java Collections Framework.
  • Extensive experience building and maintaining backend services using Spring or Spring Boot, REST APIs, and microservice architectures.
  • Strong grasp of software design principles, system design, and performance optimization in distributed Java systems.
  • Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines.
  • Comfort working with modern engineering tooling such as Git, CI / CD pipelines, automated testing frameworks, and containerization technologies.
  • Demonstrated experience conducting thorough code reviews and providing structured, constructive feedback to other engineers.
  • Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
  • Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in Java solutions.