Senior AI Backend Engineer

Nesto-Cloud

Build AI underwriting systems with Python and backend expertise at nesto, in a remote-first role open across Canada. Shape production lending technology.

As a Senior Applied AI Engineer, you will lead major projects for Maestro, nesto’s AI underwriting and lending engine. Apply LLMs, retrieval-augmented generation, structured extraction, and strong API skills to production workflows. Your work will combine software engineering, data science, and model evaluation across the full lifecycle.

Key Responsibilities:

Lead major features and projects from design through delivery
Optimize agentic workflows combining rules, LLMs, and embedding search
Build evaluation pipelines with golden sets and regression tracking
Shape AI platform architecture through reviews and collaboration
Mentor peers and support delivery timelines

Requirements:

Five or more years of professional software development experience
Strong Python, backend, and API development skills
Hands-on production experience with LLMs and structured extraction
Background in data science, data analysis, or statistics
Experience leading projects or technical initiatives

Lead Python, API, LLM, and evaluation work that advances Maestro and nesto’s transparent digital mortgage technology across Canada.

#J-18808-Ljbffr

Apply

Vacancy posted -71

Similar jobs that could be interesting for youBased on the Senior AI Backend Engineer in Montréal, QC vacancy

Principal Backend Engineer
$160k - $220k per year
...we want to hear from you. We're looking for an exceptional backend engineer and hands-on architect to help us scale and connect millions of... ...database technologies ~ Experience integrating and leveraging AI-assisted development tools such as Claude and Opencode to accelerate...
Suggested
Full time
Worldwide
Flexible hours
Us Mobile
Montréal, QC
more than 2 months ago
Senior C# .NET Backend Developer
...are actively seeking an experienced Senior C# .NET Backend Developer . About the Role... ...models . This is a pure backend engineering role . We are seeking a hardcore C# /... ...Enhance and scale real-time computation engines used for market risk tracking and interest...
Senior
Permanent employment
Full time
Contract work
Immediate start
Relocation
Relocation package
NÖORD TECHNOLOGIES
Montréal, QC
14 days ago
Backend Engineer (PHP/Golang)
$80k - $130k per year
...ABOUT YOU We are looking for Backend Engineers who are innovative, collaborative, and adaptable to join our engineering team . The... ...contact [email protected] . We may use artificial intelligence (AI) tools to support parts of the hiring process, such as...
Suggested
Full time
Xsolla
Montréal, QC
more than 2 months ago
Backend Python Developer AI Agentic Applications
...Backend Python Developer – AI Agentic Applications Location: Montréal, QC (Hybrid) Type: Full-Time Compensation: Competitive, based on experience... ...and collaborate closely with a multidisciplinary team of engineers, product managers, and domain experts. Key...
Suggested
Full time
Manual labor
grep Technologies
Montréal, QC
more than 2 months ago
Senior Back-end Developer | Remote flexible - H/F
...visualize and quantify their emissions. We are looking for a senior engineer who wants their work to matter, who takes pride in building... ...delivering value to users. Develop, test, integrate, and deploy backend and API stacks. Maintain and ensure the high availability...
Senior
Full time
Local area
Remote work
Flexible hours
Ghgsat
Montréal, QC
a month ago
Senior Backend DevOps Programmer
$12k - $15k per year
...advanced gaming systems and tools. Working collaboratively with other engineers and designers, you will have a significant impact and influence... ..., GCP) using Infrastructure as Code (IaC) to support scalable backend services. Design, implement, and maintain robust CI/CD...
Senior
Full time
Summer work
Work at office
Local area
Immediate start
Remote work
Flexible hours
Kabam
Montréal, QC
more than 2 months ago
AI Engineer
$150k - $160k per year
...Requisition Number: 106471 AI Engineer Location You will have the flexibility to work fully remotely. Insight at a Glance ~14,000+ engaged teammates globally ~$8.2 billion in revenue in 2025 ~ Certified as a Great Place to Work in 9 Countries in 2025 ~ Fortune...
Full time
Local area
Remote work
Insight
Montréal, QC
18 days ago
Principal Engineer DevX & AI
...We are looking for a Principal Engineer to take architectural ownership of... ...Builder platform. This is the most senior individual contributor role on the DevX and AI team, and the decisions you make here... ...storefronts built headless on our backend. For more information, visit...
Senior
Full time
Local area
Worldwide
Xsolla
Montréal, QC
more than 2 months ago
Senior SRE / Observability Engineer IA & AI Ops - Bilingual
$110k - $120k per year
...1000 companies to small and mid-sized organizations in Canada/US and Europe. We currently have a role as an Senior SRE / Observability Engineer – IA & AI Ops - Bilingual with our large consulting client, working for a public sector, crown corporation in the Montreal...
Senior
Long term contract
Permanent employment
Full time
Contract work
Freelance
2 days per week
3 days per week
Tech Talent International
Montréal, QC
9 days ago
Software Engineer AI
...construisent l'avenir. Aujourd'hui, nous recrutons un·e Software Engineer AI pour l'un de nos clients : une scale-up montréalaise à la... ...Comment impressionner ? ⭐ Tu as de l'expérience en développement backend avec Go et/ou Python Tu as touché à des projets...
Daily paid
Permanent employment
Full time
Part time
Remote work
Maplr
Montréal, QC
more than 2 months ago
Senior Backend DevOps Programmer - Contract
...advanced gaming systems and tools. Working collaboratively with other engineers and designers, you will have a significant impact and influence... ..., GCP) using Infrastructure as Code (IaC) to support scalable backend services. Design, implement, and maintain robust CI/CD...
Senior
Full time
Contract work
Local area
Flexible hours
Kabam
Montréal, QC
more than 2 months ago
Applied AI Engineer
...innovative and strategic solutions in Strategy, Analytics, Digital Engineering, Cloud, Data & AI, Experience Design, and Marketing. Our Co-Innovation... ...role — not research or prototyping. We are looking for senior, hands-on full-stack engineers who have designed, built, and...
Senior
Full time
Internship
Local area
Worldwide
Work visa
Bounteous
Montréal, QC
more than 2 months ago
Programmeur Backend DevOps Senior - Contrat
...provisionner et gérer l'infrastructure cloud (ex. : AWS, GCP) en utilisant l'Infrastructure as Code (IaC) pour soutenir des services backend évolutifs. Concevoir, implémenter et maintenir des pipelines CI/CD robustes pour automatiser les tests, le déploiement et les mises...
Senior
Full time
Contract work
Work at office
Worldwide
Flexible hours
Kabam
Montréal, QC
more than 2 months ago
Senior Backend Programmer Central Technologies | Programmeur·euse Backend Sénior·e Technologies ce
...law. Behaviour is looking for a talented Backend programmer (Node.js) with operational... ...robustness. Collaborate closely with other engineers to deliver scalable, gaming server-... ...applicables. We may use artificial intelligence (AI) tools to support parts of the hiring...
Senior
Full time
Worldwide
Behaviour Interactive
Montréal, QC
more than 2 months ago
Développeur(se) Backend Senior - Spectra
...quantifier les émissions. Nous recherchons un(e) développeur(se) senior qui souhaite avoir un réel impact, qui est fier(ère) de concevoir... .... Développer, tester, intégrer et déployer des solutions backend et des API. Assurer la maintenance et la haute disponibilité des...
Senior
Permanent employment
Full time
Flexible hours
Ghgsat
Montréal, QC
a month ago
Data Engineer Data Platform (AI-Enabled)
...Job description Petal is looking for an AI-First Data Engineer to join a small platform team building the next generation of our data platform, enabling advanced BI and enabling AI workflows across the organization. This is not a traditional data engineering role. We...
Remote job
Permanent employment
Full time
Flexible hours
Shift work
Petal
Montréal, QC
15 hours ago
Senior Backend Developer - Remote Working
...is building autonomous robots that deliver healthcare. Our AI sensing platform mounts on mobile robots and does the work of... ...ship things that matter. The Role We're looking for a Senior Backend Engineer to own and evolve the backbone of our system. Our backend...
Senior
Full time
Work at office
Remote work
Norbert Health
Montréal, QC
24 days ago
Senior Mobile Developer (AI-Enabled)
...most in their daily work. As a Senior Mobile Developer, you'll own... ...product managers, designers, and engineers across the organization.... ...not just what we build. The "AI Enabled" framing is intentional... ...boundaries, and how mobile clients and backends interact. ~ Break down...
Senior
Full time
Remote work
Work from home
Solutions Petal Inc.
Montréal, QC
more than 2 months ago
Full Stack AI Engineer / Applied AI Engineer
$50k - $70k per year
...Be up-to-date with latest happenings in AI and Associated AI tools, technologies and... ...create seamless AI experiences. Optimize backend systems for performance, scalability, and... ...GenAI projects Understanding of context engineering and agent orchestration frameworks $50,000...
Full time
Xsolla
Montréal, QC
more than 2 months ago
Senior Software Engineer - MachineApps
...the only hardware and software AI-powered platform built for the... ...Job Description As a Senior Software Developer at Vention... ...managers, designers, and other engineers to deliver robust applications... ...production systems ~ Solid backend development experience (Python...
Senior
Long term contract
Full time
Internship
Work at office
Work from home
Vention
Montréal, QC
more than 2 months ago
Senior Backend/Full-stack Developer
...performance marketing solution that uses AI and data to help brands acquire and... ...for life. Summary We are seeking a senior full stack engineer who can help deliver Wunderkind Advertising... .... The ideal profile combines strong backend engineering, practical frontend product...
Senior
Long term contract
Full time
Wunderkind
Montréal, QC
more than 2 months ago
AI Evaluation Engineer (QA)
...service digital partner that combines Strategy, Experience & Design, Engineering and Managed Services. We build digital solutions that deliver... ...successful digital experiences and client partnerships. As a QA / AI Evaluation Engineer, you will join a highly motivated and...
Full time
Apprenticeship
Immediate start
Appnovation Technologies
Montréal, QC
a month ago
Senior Presales Engineer
...poste Nous recherchons un(e) Ingénieur(e) avant-vente (PreSales Engineer) afin de soutenir la croissance d’ArgonOS en Amérique du Nord.... ...About ChapsVision ChapsVision is a global leader in Agentic AI and data solutions, helping organizations transform how they access...
Senior
Permanent employment
Full time
Chapsvision Canada
Montréal, QC
24 days ago
Programmeur moteur senior / Senior Engine Programmer
...Programmeur moteur senior Responsabilités: Être une personne avant-gardiste qui aime concevoir... ...dans le développement de jeux avec Unreal Engine. Solides compétences en communication... ...advancements in the game industry. Use AI/LLM tools to increase productivity....
Senior
Full time
Work at office
High Dive Inc.
Montréal, QC
5 days ago
Senior Data Engineer
...year Trackforce is seeking a highly skilled and motivated Senior Data Engineer to join our Data team. In this role, you will be responsible... ...team grows; help set a high bar for engineering quality. Use AI-assisted development tools in your own workflow (pipeline code...
Senior
Long term contract
Full time
Work at office
Local area
Remote work
Work from home
Flexible hours
Trackforce
Montréal, QC
more than 2 months ago
Developpeur-euse AI senior
...Développeur(- euse ) logiciel IA senior Vision par ordinateur pour le tri robotisé en temps réel & MLOps Waste Robotics | Récupération de matières revalorisables en temps réel | Région de Montréal ou de Trois-Rivières, Québec À propos de Waste Robotics...
Senior
Full time
Apprenticeship
Remote work
Waste Robotics
Montréal, QC
more than 2 months ago
Principal Systems Engineer- Enterprise AI (Design & Implementation)
...client is hiring a highly technical Systems Engineer to join its North American R&D and... ...design and build scalable, enterprise-grade AI systems, reusable software development kits... ...platforms, services and applications Scalable backend services and distributed systems High-...
Long term contract
Full time
Flatgigs
Montréal, QC
more than 2 months ago
Applied AI, Technical Lead, Forward Deployed AI Engineer
...About Mistral Mistral provides full-stack AI solutions: from frontier models to... ...you will lead a project teams of Applied AI Engineers, ensuring the successful deployment of Mistral... ...skills , including API design, backend/full-stack development, and system architecture...
Full time
Relocation package
Mistral
Montréal, QC
more than 2 months ago
Senior Forward Deployed Engineer (Gemini Enterprise)
...is a next-generation data and AI consulting firm dedicated to accelerating... ..., AI technologies, data engineering, and digital transformation.... ...Artefact is looking for a Senior Deployed AI Engineer specialized... ...in TypeScript/React and the backend services and APIs behind them...
Senior
Full time
Artefact
Montréal, QC
more than 2 months ago
Back-End Developer - Full-Time H/F
...Location: Montreal, QC Job Type: Full time Where you’ll make a difference You are a PHP master who eats APIs for breakfast. Our Backend Developer will help Frank & Oak deliver an amazing e-commerce experience that can scale to meet increasing demand....
Full time
Frank.
Montréal, QC
more than 2 months ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior AI Backend Engineer. Be the first to apply!