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Java software engineer Jobs in Montreal, QC

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Java software engineer • montreal qc

Last updated: 3 hours ago

Remote Senior Software Engineer

Micro1Cote-Saint-Luc, Quebec, CA
CA$50.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

 • Promoted

Java Developer

TechNeptune Consulting IncMONTREAL, Quebec, Canada
Full-time

Job title: Java Developer<br /> Job location: Montreal, Canada(Hybrid)<br /> Job Type: Contract<br /> Job description:<br /> Technology <br /> The ideal candidate... Show more

Full-Stack Software Engineer - Node.js

GuaranaMontreal, QC, CA
Full-time

We are a very well-structured and distributed Software Development Agency out of Montreal.We are looking for an ambitious Full Stack Developer to join our talented multi-disciplinary team as the co... Show more

AI Principal Software Engineer - US SaaS startup | Remote

Atomic HRMontreal, Quebec, Canada
Remote
Full-time

The client is a venture-backed startup simplifying access to essential benefits for frontline workers.Their AI-powered platform helps employees easily find and apply for benefits like childcare, el... Show more

Senior Software Developer (Java)

Royal Bank of Canada>MONTRÉAL, Canada
Full-time

RBC Capital Markets is a leading global investment banking company dedicated to providing services in banking, finance, and capital markets to corporations, institutional investors, asset managers,... Show more

Développeur Java / Databricks

DELANMontréal, QC, ca
Full-time

Le Développeur Java / Databricks sera responsable de contribuer à la migration de pipelines de données existants vers une architecture moderne basée sur le Cloud.Développer et maintenir des applica... Show more

Software Engineer

L3Harris TechnologiesMontreal, Quebec
Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do.Our employees are unified in a shared dedication to our customers’ mission and quest ... Show more

Software Developers - Guidewire, Java, SpringBoot, API Rest

Randstad CanadaMontréal, Quebec, CA
CA$35.00 hourly
Full-time +2
Quick Apply

A prominent leader within the Canadian property and casualty (P&C) insurance sector is currently accelerating the modernization of its nationwide financial ecosystem.To support this large-scale... Show more

Mobile Software Engineer iOS

Company 1 - The Manufacturers Life Insurance CompanyMontreal, Quebec
CA$86,100.00 yearly
Full-time

Managing group benefits can be complex and stressful, especially during important life events.In this role, you will contribute to building and maintaining a mobile application that simplifies thes... Show more

Senior Software Engineer

AperteraMontreal, QC, CA
Full-time
Quick Apply

About Apertera Apertera is leading the evolution of language solutions for high-stakes content.We partner with enterprises as an extension of their teams, combining professional expertise with Adap... Show more

Remote Senior Software Engineer

Micro1Longueuil, Quebec, CA
CA$50.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

 • Promoted

Senior Fullstack Java Developer

Tech Talent InternationalMontréal, QC, Canada
Full-time +2
Quick Apply

Tech Talent International (SI).Fortune 100/500/1000 companies to small and mid-sized organizations in Canada/US and Europe.Senior Fullstack Java Developer.This role can either be a permanent role o... Show more

Full Stack Java Developer

Sapsol Technologies IncMontreal, QC, CA
Full-time
Quick Apply

Full Stack Java Developer to join our innovative team.In this role, you will be responsible for designing, developing, and maintaining robust web applications using Java technologies.You will colla... Show more

Software Engineer – Java, Spring Boot, DevSecOps, Cloud, Platform Modernization

Astra North Infoteck Inc.Montreal, QC, ca
Full-time
Quick Apply

Software Engineer – Java, Spring Boot, DevSecOps, Cloud, Platform Engineering.We are seeking a Software Engineer to join a Global Enterprise Technology Team responsible for the development, moderni... Show more

 • New!

Remote Senior Software Engineer

Micro1Sainte-Catherine, Quebec, CA
CA$50.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

 • Promoted

Software Engineer, Intermediate or Senior

IndexMontréal, Québec, CA
Full-time
Quick Apply

Index is an Artificial Intelligence company specializing in Web Marketing.Index is innovating the marketing business and how enterprises and people interact with it.AI technologies to help companie... Show more

Senior Software Engineer (Infrastructure)

MotionMontréal, QC, CA
Full-time +1

AI-native platform that bridges the gap between performance marketers and creative teams, so they can uncover what’s working, what’s not, and ship more winning ads across platforms like YouTube, Li... Show more

Senior Backend Developer (Java)

0000050007 Royal Bank of CanadaMONTRÉAL, Quebec, Canada
Full-time

What if you could use your technology skills to work on products that make an impact when it comes to delivering unforgettable client experiences? We’ve moved away from digitizing simple banking ca... Show more

Senior Full‑Stack Software Engineer - Data‑Driven Applications

NexasphereMontreal, QC, Canada
Full-time
Quick Apply

The Data Products and Services team uses some of the most cutting-edge technologies and cloud offerings to design, build and maintain machine learning frameworks, data science tools, microservices,... Show more

Développeur·euse Java Full Stack senior

Solutions TechsoMontréal, QC, CA
Permanent

Tu souhaites aller au-delà de l’exécution et contribuer réellement aux décisions techniques d’un projet?.Dans ce rôle, tu auras l’occasion de travailler sur des projets variés, de contribuer aux ch... Show more

Remote Senior Software Engineer

Remote Senior Software Engineer

Micro1Cote-Saint-Luc, Quebec, CA
8 days ago
Salary
CA$50.00 hourly
Job type
  • Full-time
  • Remote
Job description
Senior Software Engineer$50 - $100/hourpay

Required Skills

Python3JAVARustAlgorithmsBasics C++Typescriptbug fixingfeature implementationcodebase refactoringperformance optimization

About micro1

micro1 is the leading AI data lab for training frontier models and evaluating AI agents. Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more. micro1 transforms that real-world expertise into high-quality training data, evaluations, and feedback loops that improve how AI systems learn, reason, and perform.

Our platform identifies and vets top talent through an AI recruiter, enabling high-quality expert contributions at scale. We aim to enable 1 billion people to do meaningful work by applying their expertise to AI. As our global expert network grows, micro1 is building the human intelligence layer for frontier AI.

Job Title: Senior Software Engineer


Job Type: Contractor (~15 hrs a week)


Location: Remote


Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.


As an expert you will be creating Reinforcement Learning Environments which test an AI model’s ability to solve complex software engineering problems using Model Context Protocol (MCP) tools. Tasks may involve fixing bugs, implementing features, refactoring code, or optimizing performance while requiring agents to discover and reason over information from real MCP servers. You will design reproducible environments, deterministic verification, and golden reference solutions that accurately measure both MCP tool use and software engineering ability.



Required Skills and Qualifications:

  1. Proficiency in C++, Python, JAVA, GoLang, Typescript, or Rust.
  2. Deep understanding of algorithms, data structures, and performance tuning.
  3. Demonstrated experience in debugging complex software issues and delivering maintainable solutions.
  4. Strong background in feature development and codebase refactoring.
  5. Proven ability to optimize software for performance and scalability.
  6. Exceptional written and verbal communication skills, with a keen attention to detail.
  7. Track record of success in collaborative, cross-functional teams, ideally in remote settings.



Preferred Qualifications:

  1. Previous experience working on large-scale, distributed codebases.
  2. Familiarity with modern AI or machine learning systems is a plus, though not required.
  3. Background in participating in rigorous code reviews and contributing to the development of software best practices.


Process:

  1. Apply to the role, filling out the screening questions
  2. Complete AI Interview (approx. 30 minutes)
  3. Technical Assessment (Tentative)
  4. Hiring Manager review


Compensation Structure

Compensation is output-based; experts are paid per task that meets the project specifications. The time required to complete work may vary depending on the expert’s experience and workflow. Minimum submission requirements apply. Experts must submit a minimum of tasks per week.


Start Timeline & Availability

We typically fill roles within 48 hours and are looking for experts ready to jump in right away. If selected, we expect you to start your first tasks within 24–48 hours of completing onboarding.