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Added 4 months ago
Network Engineer, Foundation & Support
Meta
Quinte West, Ontario
Meta is seeking a Network Engineer to join the Foundation and Support team, focused on the deployment, operations, and lifecycle management of enterprise network services (ENS) that…
Added 4 months ago
A
Cloud Platform - Senior Engineer Storage
Aptiv
Kanata, Ontario
- Full-time
Added 4 months ago
D
Senior Software Engineer, Integrations
d1g1t
Toronto, Ontario
- Full-time
We are looking for a highly skilled and passionate Senior Software Engineer to step into a key role on our Software Engineering - Integrations team.
Added 5 months ago
HT
Research Engineer - Agentic Software Systems Engineering
Huawei Technologies Canada Co., Ltd.
Markham, Ontario
- Full-time
Huawei Canada has an immediate permanent opening for a Research Engineer.
Added 6 months ago
JA
AI Engineer - Banking Domain
Jay Analytix
Montreal, Quebec
- Contract
We are looking for an experienced AI Engineer to design and deliver production-grade machine learning and generative AI solutions within a major Canadian bank. You will work across fraud…
Added 4 months ago
Infrastructure Engineer
taq | SCI Lease Corp.
Markham, Ontario
Infrastructure Engineer responsible for filling a critical gap in managing and securing AWS-focused infrastructure with legacy VMware migration, emphasizing automation, patch management,…
Added 3 months ago
MC
AI Prompt Engineer
MCI Careers
Canada
- Full-time
We are seeking a creative, analytical, and detail-oriented Prompt Engineer to design, test, and refine prompts that enable Generative AI systems to generate accurate, relevant, and…
Added 3 months ago
MC
Generative AI Engineer
MCI Careers
Canada
- Other
We are seeking an innovative and technically skilled Generative AI Engineer to join our growing AI team. In this role, you will design, develop, and deploy cutting-edge AI solutions powered…
Added 3 months ago
MC
Senior Generative AI Engineer
MCI Careers
Canada
- Other
We are seeking a Senior Generative AI Engineer to lead the development of advanced AI-powered products and enterprise solutions. This role requires deep expertise in Large Language Models,…
Added 3 months ago
MC
AI / Machine Learning Engineer
MCI Careers
Canada
- Other
We are seeking a highly analytical and technically skilled AI / Machine Learning Engineer to develop, deploy, and optimize machine learning solutions that drive business innovation and…
Added 3 months ago
MC
RAG Engineer
MCI Careers
Canada
- Other
We are looking for a highly skilled RAG Engineer to build Retrieval-Augmented Generation (RAG) systems that combine the power of Large Language Models with enterprise knowledge and…
Added 3 months ago
MC
Senior RAG Engineer
MCI Careers
Canada
- Other
We are seeking a Senior RAG Engineer to lead the design and optimization of Retrieval-Augmented Generation platforms that power enterprise AI solutions. This role requires expertise in…
Added 3 months ago
MC
Senior AI / ML Engineer
MCI Careers
Canada
- Other
We are seeking a highly experienced Senior AI / Machine Learning Engineer to lead the design, development, and deployment of advanced AI and machine learning solutions that drive innovation…
Added 4 months ago
Network Engineer, Optical Deployment
Meta
Quinte West, Ontario
…troubleshooting, etc.) on large scale complex programs at the experienced engineer level, demonstrating domain expertise and technical…
Added 4 months ago
Network Engineer, Optical Deployment
Meta
Quinte West, Ontario
Meta is looking for an Optical Network Deployment & Support Engineer to join the team responsible for planning and executing network deployments to build one of the world's largest optical…
Added 4 months ago
B
Data Engineer
Bounteous
Montreal, Quebec
- Full-time
Develop, automate and support regulatory and business reports using Python, SQL stored procedures and enterprise reporting platforms such as Business Objects and Tableau.
Added 4 months ago
EN
Distinguished SW Systems Engineer (10343)
Extreme Networks
Toronto, ON
- Full-time
Added 5 months ago
M
Principal Software Engineer - Distributed Systems
Microsoft
Vancouver, British Columbia
- Full-time
The Fabric Mirroring team is currently seeking a Senior Software Engineer to join their team. This team oversees designing, building, and operating a next generation service that transfers…
Added 4 months ago
S
Technical Support Engineer
Sentry
Remote, Canada
- $100,000 to $125,000 CAD / year
- Full-time
- Remote
We are architecting the Technical Support engine. We’re looking for a veteran engineer to help us redefine the standard of technical support by combining deep human expertise with…
Added 4 months ago
KC
Forward Deployed AI Engineer
Keyrus Canada
Toronto, ON · Montreal, QC
- Full-time
We are currently building our talent pipeline for upcoming Forward Deployed AI Engineer opportunities in Canada. While we may not have an immediate opening today, we are actively connecting…
Added 4 months ago
C
Apps Development Sr Manager - Vice President
Citi
Mississauga, Ontario
- Full-time
Collaborate with development teams to create a seamless developer experience and ensure applications are built with scalability, reliability, and security in mind.
Added 4 months ago
C
Apps Development Sr Manager - Vice President
Citi
Remote, Canada
- Full-time
- Remote
The Senior Technology Lead must be experienced hands-on engineer who is passionate about solving business, customer, and technology problems through innovation and perseverance. Responsible…
Added 3 months ago
AI Native Engineer
CookUnity
Toronto, Ontario
You'll embed directly with the cross functional AI team as a dedicated AI engineer. Your job isn't to write code faster with AI. It's to fundamentally redesign how work gets done. You'll…
Added 4 months ago
C
Applications Development Sr Programmer Analyst - Assistant Vice President
Citi
Remote, Canada
- Full-time
- Remote
We are seeking a highly motivated and experienced Principal Engineer to join our Retail and Wealth Risk Engineering team under the Enterprise Risk Technology platform. This is an…
Added 4 months ago
Network Engineer, Foundation and Support (Edge/Backbone Infrastructure Design)
Meta
Quinte West, Ontario
…this role, we are looking for a Network Infrastructure Design Engineer with demonstrated experience in developing and delivering network infrastructure solutions at scale in a data center…

MCI Careers

Senior RAG Engineer

Canada

Apply About employer

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Job details

Apply by: Jun 29, 2027
Experience: Minimum 5 years of software engineering experience.
Posting language: English
Posted: Oct 2, 2026

Original job description

POSITION OVERVIEW

MCI is one of the fastest-growing tech-enabled business services companies in the US, delivering Customer Experience (CX), Business Process Outsourcing (BPO) and technology solutions across multiple industries and countries worldwide. Our team uses people, technology and innovation to help organizations improve customer experience and business performance.

We are seeking a Senior RAG Engineer to lead the design and optimization of Retrieval-Augmented Generation platforms that power enterprise AI solutions. This role requires expertise in semantic search, vector databases, information retrieval, and Generative AI technologies.

You will provide technical leadership while ensuring knowledge retrieval systems are accurate, scalable, secure, and aligned with business needs.

To be considered for this role, you must complete a full application on our company careers page, including all screening questions and a brief pre-employment test.

POSITION RESPONSIBILITIES

Key Responsibilities:

Retrieval Architecture & Platform Design

Lead the development of enterprise-grade retrieval and knowledge systems.
Design scalable Retrieval-Augmented Generation architectures.
Develop enterprise knowledge ingestion and indexing frameworks.
Establish retrieval standards and best practices.
Architect solutions that support AI-powered knowledge access.

Search Optimization & Knowledge Management

Drive improvements in retrieval quality and performance.
Optimize vector search and semantic retrieval capabilities.
Improve relevance, accuracy, and response quality.
Design evaluation methodologies and testing frameworks.
Support knowledge lifecycle management processes.

Enterprise Integration & Delivery

Enable seamless integration of retrieval systems with AI applications.
Collaborate with AI engineers and product teams.
Integrate retrieval systems with LLMs and AI workflows.
Support enterprise-wide AI initiatives and deployments.
Develop scalable APIs and retrieval services.

Governance, Security & Compliance

Maintain operational excellence and regulatory compliance.
Implement security controls and data governance standards.
Monitor platform performance and availability.
Conduct root cause analysis and issue resolution activities.
Maintain technical documentation and operational procedures.

Leadership & Innovation

Provide technical leadership and support organizational AI growth.
Mentor engineers and technical teams.
Evaluate emerging retrieval technologies and frameworks.
Recommend enhancements to platform architecture.
Contribute to AI strategy and innovation initiatives.

CANDIDATE QUALIFICATIONS

WONDER IF YOU ARE A GOOD FIT FOR THIS POSITION?

All positive, and driven applicants are encouraged to apply. The Ideal candidates for this position are highly motivated and dedicated and should possess the below qualities:

Bachelor's Degree in Computer Science, Information Systems, Data Science, Artificial Intelligence, Software Engineering, or related field.
Minimum 5 years of software engineering experience.
Experience designing and implementing enterprise-scale Retrieval-Augmented Generation solutions.
Strong proficiency in Python and backend development.
Extensive knowledge of embeddings, semantic search, vector databases, and information retrieval techniques.
Experience building scalable retrieval, indexing, and knowledge management systems.
Experience integrating RAG architectures with Large Language Models.
Knowledge of cloud infrastructure and distributed computing environments.
Experience leading technical projects and mentoring engineering teams.
Strong troubleshooting and performance optimization skills.
Excellent communication and stakeholder management capabilities.
Experience working within complex enterprise technology environments.

Nice to Have

Experience with Pinecone, Weaviate, Chroma, Milvus, or equivalent platforms.
Experience with LangChain, LlamaIndex, Haystack, or related frameworks.
Knowledge of enterprise search and knowledge management solutions.
Experience with MLOps and AI deployment pipelines.
Cloud certifications in AWS, Azure, or GCP.
Knowledge of AI governance, security, and compliance frameworks.
Master's Degree in Computer Science, Artificial Intelligence, or related discipline.
Experience supporting enterprise AI transformation programs.

PHYSICAL REQUIREMENTS

This job operates in a professional office environment. While performing the duties of this job, the employee will be largely sedentary and will be required to sit/stand for long periods while using a computer and telephone headset. The employee will be regularly required to operate a computer and other office equipment, including a phone, copier, and printer. The employee may occasionally be required to move about the office to accomplish tasks; reach in any direction; raise or lower objects, move objects from place to place, hold onto objects, and move or exert force up to forty (40) pounds.

CONDITIONS OF EMPLOYMENT

All MCI Locations

Must be authorized to work in the country where the job is based.

Subject to the program and location of the position

Must be willing to submit up to a LEVEL II background and/or security investigation with a fingerprint. Job offers are contingent on background/security investigation results.
Must be willing to submit to drug screening. Job offers are contingent on drug screening results. (Does not apply in Canada)

REASONABLE ACCOMMODATION

Consistent with the Americans with Disabilities Act (ADA), it is the policy of MCI and its affiliates to provide reasonable accommodations when requested by a qualified applicant or employee with a disability unless such accommodations would cause undue hardship. The policy regarding requests for reasonable accommodation applies to all aspects of employment. If reasonable accommodations are needed, please contact Human Resources.

EQUAL OPPORTUNITY EMPLOYER

At MCI and its subsidiaries, we embrace differences and believe diversity is a benefit to our employees, our company, our customers, and our community. All aspects of employment at MCI are based solely on a person's merit and qualifications. MCI maintains a work environment free from discrimination, one where employees are treated with dignity and respect. All employees share in the responsibility for fulfilling MCI's commitment to a diverse and equal opportunity work environment.

MCI does not discriminate against any employee or applicant on the basis of age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations, and ordinances. MCI will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements.

MCI will not tolerate discrimination or harassment based on any of these characteristics. We adhere to these principles in all aspects of employment, including recruitment, hiring, training, compensation, promotion, benefits, social and recreational programs, and discipline. In addition, it is the policy of MCI to provide reasonable accommodation to qualified employees who have protected disabilities to the extent required by applicable laws, regulations, and ordinances where an employee works.

ABOUT MCI (PARENT COMPANY)

MCI helps customers take on their CX and DX challenges differently, creating industry-leading solutions that deliver exceptional experiences and drive optimal performance. MCI assists companies with business process outsourcing, staff augmentation, contact center customer services, and IT Services needs by providing general and specialized hosting, software, staff, and services.

In 2019, Marlowe Companies Inc. (MCI) was named by Inc. Magazine as Iowa’s Fastest Growing Company in the State of Iowa and was named the 452nd Fastest Growing Privately Company in the USA, making the coveted top 500 for the first time. MCI’s subsidiaries had previously made Inc. Magazine's List of Fastest-Growing Companies 15 times, respectively. MCI has ten business process outsourcing service delivery facilities in Georgia, Florida, Texas, New Mexico, California, Kansas, Nova Scotia, South Africa, and the Philippines.

Driving modernization through digitalization, MCI ensures clients do more for less. MCI is the holding company for a diverse lineup of tech-enabled business services operating companies. MCI organically grows, acquires, and operates companies that have synergistic products and services portfolios, including but not limited to Automated Contact Center Solutions (ACCS), customer contact management, IT Services (IT Schedule 70), and Temporary and Administrative Professional Staffing (TAPS Schedule 736), Business Process Management (BPM), Business Process Outsourcing (BPO), Claims Processing, Collections, Customer Experience Provider (CXP), Customer Service, Digital Experience Provider (DXP), Account Receivables Management (ARM), Application Software Development, Managed Services, and Technology Services, to mid-market, Federal & enterprise partners. MCI now employs 10,000+ talented individuals with 150+ diverse North American client partners across the following MCI brands: MCI BPO, MCI BPOaaS, MarketForce, GravisApps, Gravis Marketing, MarchEast, Mass Markets, MCI Federal Services (MFS), OnBrand24, The Sydney Call Center, Valor Intelligent Processing (VIP), BYC Aqua, EastWest BPO, TeleTechnology, and Vinculum.

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The purpose of the above job description is to provide potential candidates with a general overview of the role. It's not an all-inclusive list of the duties, responsibilities, skills, and qualifications required for the job. You may be asked by your supervisors or managers to perform other duties. You will be evaluated in part based upon your performance of the tasks listed in this job description.

The employer has the right to revise this job description at any time. This job description is not a contract for employment, and either you or the employer may terminate employment at any time, for any reason.

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More about this job

Responsibilities

Design and maintain RAG systems and knowledge repositories to provide accurate, context-aware AI responses. Develop document ingestion pipelines and optimize vector search performance to enhance AI reliability and business impact.

Requirements

Requires a Bachelor's degree in Computer Science or a related field with at least 3 years of experience in software or AI engineering. Proficiency in Python and experience with LLMs, embeddings, and vectorization techniques are essential.

Skills

Python
Retrieval-Augmented Generation (RAG)
Large Language Models (LLMs)
Vector Databases
Semantic Search
API Development
Cloud Platforms
Data Ingestion
Machine Learning
Information Retrieval
Microservices
Prompt Engineering

Visa sponsorship

Not detected in the job text

Keywords

RAG
LLM
Generative AI
Python
Vector Search
Pinecone
Weaviate
Milvus
Chroma
LangChain
LlamaIndex
Haystack
AWS
Azure
Google Cloud Platform
MLOps
Docker
Kubernetes
Semantic Search
Embeddings
Microservices
API
Information Retrieval
Knowledge Management
Agile
BPO
CX
XaaS

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