D\u00e9veloppeur(se) de logiciels principal(e) IA - AI Principal Software Developer

Fairygodboss; Montreal; On-site; CAD 120,000 - 160,000; Full time

Job summary

A leading software company is seeking a Principal Software Engineer to develop next-generation AI solutions. This role will involve setting the technical vision, architecting cloud micro-services, and mentoring junior engineers. The ideal candidate has over 10 years of software development experience, including significant work with AI/ML systems and deep expertise in Python. Join our innovative team in Montreal.

Benefits

Paid leave for new parents

Unlimited paid time off

Medical coverage for IVF services

Qualifications

• 10+ years of professional software development experience.
• 5+ years building production AI/ML or GenAI systems.
• Deep expertise in Python and related frameworks.

Responsibilities

• Set the technical vision for GenAI systems.
• Architect and build cloud micro-services.
• Drive innovation by integrating emerging research.

Skills

Cloud platforms (GCP, AWS, Azure)

Python

AI/ML systems

Micro-services

Education

Bachelor's or Master's in CS, Engineering

Tools

TensorFlow

PyTorch

Docker

Kubernetes

Job description

95% say women are treated fairly and equally to men

99% would recommend this company to other women

94% say the CEO supports gender diversity

Ratings are based on anonymous reviews by Fairygodboss members.

Paid leave for new and adoptive parents, medical coverage for IVF services & reimbursement to help offset adoption and surrogacy expenses.

45% company match on total employee 401(k) contributions up to the IRS annual limit.

Unlimited paid time off for you to rest, re-charge, and pursue your personal aspirations.

#893383039376

Position summary

Company Overview

With 80,000 customers across 150 countries, UKG is the largest U.S.-based private software company in the world. And we're only getting started. Ready to bring your bold ideas and collaborative mindset to an organization that still has so much more to build and achieve? Read on.

At UKG, you get more than just a job. You get to work with purpose. Our team of U Krewers are on a mission to inspire every organization to become a great place to work through our award-winning HR technology built for all.

Here, we know that you're more than your work. That's why our benefits help you thrive personally and professionally, from wellness programs and tuition reimbursement to U Choose - a customizable expense reimbursement program that can be used for more than 200+ needs that best suit you and your family, from student loan repayment, to childcare, to pet insurance. Our inclusive culture, active and engaged employee resource groups, and caring leaders value every voice and support you in doing the best work of your career. If you're passionate about our purpose - people -then we can't wait to support whatever gives you purpose. We're united by purpose, inspired by you.

About the Role:

UKG is a leader in the HCM space, and is at the forefront of artificial intelligence innovation, dedicated to developing cutting-edge generative AI solutions that transform the HR / HCM industry and enhance user experiences. We are seeking a talented and motivated AI Engineers to join our dynamic team and contribute to the development of next-generation AI/GenAI based products and solutions. This role will provide you with the opportunity to work on cutting-edge SaaS technologies and impactful projects that are used by enterprises and users worldwide. As a Principal Software Engineer, you will be involved in the design, development, testing, deployment, and maintenance of software solutions. You will work in a collaborative environment, contributing to the technical foundation behind our flagship products and services.

Responsibilities
• Set the technical vision for GenAI systems-own the roadmap, architecture, and standards for reliability, security, and performance.
• Architect and build cloud micro-services in Python with LangChain, LangGraph, ADK, MCP, A2A and web-first frameworks such as FastAPI, Streamlit, Gradio, FastHTML-scaling multimodal (text + image + video) models to millions of users.
• Drive innovation-experiment with transformers, diffusion, and multi-modal architectures; integrate emerging research into production workflows.
• Lead end-to-end delivery-from ideation and data strategy to model fine-tuning, deployment, and continuous optimization, meeting strict latency and compliance targets.
• Mentor and multiply talent-coach engineers, run design reviews, and raise the technical bar through candid feedback and knowledge-sharing sessions.
• Champion operational excellence-define SLOs, instrument deep telemetry, lead incident response, and run blameless post-mortems in a true DevOps model.
• Influence across UKG-partner with product, UX, data science, security, and leadership to align technical decisions with business outcomes and inspire a culture of relentless learning

Basic Qualifications
• Bachelor's or Master's in CS, Engineering, or related field (PhD welcome but not required).
• 10 + years of professional software development, including 5 + years building production AI/ML or GenAI systems at scale.
• Deep expertise in Python and frameworks like TensorFlow, PyTorch, plus LangChain, LangGraph, and foundation-model orchestration.
• Proven ability to build on foundation-model APIs and use AI daily in your workflow (GitHub Copilot, Windsurf/Cursor, Claude Code, etc.).
• Hands-on mastery of cloud platforms (GCP, AWS or Azure), containerization (Docker, Kubernetes), and modern CI/CD and IaC practices.
• Strong background in distributed systems, micro-services, and data platforms (SQL, NoSQL, vector stores).

Preferred Qualifications
• Experience with multi-modal models, reinforcement learning, retrieval-augmented generation, and responsible-AI principles.
• Advanced knowledge of GCP services-Vertex AI, BigQuery, GKE, DataFlow, Kubeflow-and streaming frameworks (Kafka, Pub/Sub).
• Track record of thought leadership: papers, open-source contributions, or conference talks.
• Comfortable guiding teams in agile and DevOps environments, balancing speed with reliability.
• A thought leader who reads research papers for fun and turns them into production-ready platforms.
• Energized by ambiguity, end-to-end ownership, and setting the pace in an AI-first culture.
• Inclusive, candid, and relentlessly customer-obsessed, with a knack for inspiring both technical and non-technical stakeholders.
***** Please add a link in your résumé (GitHub repo, blog post, Kaggle entry, etc.) that shows something you taught yourself in the last six months and why it excited you.*****

Where we're going

UKG is on the cusp of something truly special. Worldwide, we already hold the #1 market share position for workforce management and the #2 position for human capital management. Tens of millions of frontline workers start and end their days with our software, with billions of shifts managed annually through UKG solutions today. Yet it's our AI-powered product portfolio designed to support customers of all sizes, industries, and geographies that will propel us into an even brighter tomorrow!

UKG is proud to be an equal opportunity employer and is committed to maintaining a diverse and inclusive work environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, disability, marital status, familial status, sexual orientation, pregnancy, genetic information, gender identity, gender expression, national origin, ancestry, citizenship status, veteran status, and any other legally protected status under federal, state, or local anti-discrimination laws.

Disability Accommodation in the Application and Interview Process: For individuals with disabilities that need additional assistance at any point in the application and interview process, please email [emailprotected] .

*Quebec candidates: While French is required for Quebec roles, use of the English language is also required due to the global nature of the business and the need to interact with UKG US headquarters and international sites.

95% say women are treated fairly and equally to men

99% would recommend this company to other women

94% say the CEO supports gender diversity

Ratings are based on anonymous reviews by Fairygodboss members.

Paid leave for new and adoptive parents, medical coverage for IVF services & reimbursement to help offset adoption and surrogacy expenses.

45% company match on total employee 401(k) contributions up to the IRS annual limit.

Unlimited paid time off for you to rest, re-charge, and pursue your personal aspirations.