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Java Jobs in Niagara Falls, ON

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Java • niagara falls on

Last updated: 18 hours ago
  • New!
Senior Java Engineer

Senior Java Engineer

SuperAnnotateSt. Catharines, 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: 20 hours ago
  • New!
Senior Business Systems Analyst (Workday Specialization)

Senior Business Systems Analyst (Workday Specialization)

Brock UniversitySt. Catharines, Main Campus
Full-time +1
Brock University is located on the traditional territory of the Haudenosaunee and Anishinaabe peoples, many of whom continue to live and work here today. This territory is covered by the Upper Canad...Show moreLast updated: 18 hours ago
Software Developer

Software Developer

Meridian Credit UnionSt. Catharines, Niagara Region, CA
Full-time
Get AI-powered advice on this job and more exclusive features.At Meridian our aspiration is to integrate our purpose into everything we do for people, the planet, and communities.We believe that ou...Show moreLast updated: 6 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
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
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
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
Entry Level Equity Trader Job in Cat Lake, ON | Full Time

Entry Level Equity Trader Job in Cat Lake, ON | Full Time

Maverick TradingCat Lake, Kenora District, ON P0V, Canada
Full-time
Entry Level Equity Trader 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 g...Show moreLast updated: 30+ days ago
Software Developer

Software Developer

MeridianSt Catharines, ON L2SW3, CAN
Full-time
At Meridian our aspiration is to integrate our purpose into everything we do for people, the planet, and communities.We believe that our greatest opportunity is to create opportunity and meet peopl...Show moreLast updated: 8 days ago
People also ask
Senior Java Engineer

Senior Java Engineer

SuperAnnotateSt. Catharines, Ontario, CA
20 hours 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.