Python & Large Language Model (LLM) Developer - Operate
Top Benefits
About the role
**Job Type:**Temporary Contract
**Work Model:**Hybrid
**Reference code:**132703
**Primary Location:**Toronto, ON
**All Available Locations:**Toronto, ON
Our Purpose
At Deloitte, our Purpose is to make an impact that matters. We exist to inspire and help our people, organizations, communities, and countries to thrive by building a better future. Our work underpins a prosperous society where people can find meaning and opportunity. It builds consumer and business confidence, empowers organizations to find imaginative ways of deploying capital, enables fair, trusted, and functioning social and economic institutions, and allows our friends, families, and communities to enjoy the quality of life that comes with a sustainable future. And as the largest 100% Canadian-owned and operated professional services firm in our country, we are proud to work alongside our clients to make a positive impact for all Canadians.
By living our Purpose, we will make an impact that matters.
- Have many careers in one Firm.
- Enjoy flexible, proactive, and practical benefits that foster a culture of well-being and connectedness.
- Learn from deep subject matter experts through mentoring and on the job coaching
##Summary
As a Python & Large Language Model (LLM) Developer, you will be at the forefront of designing and delivering next‑generation AI solutions that solve complex business problems. In this 1-Year fixed term role, you will work with cross‑functional teams to build scalable, production‑ready LLM applications leveraging advanced retrieval techniques, agentic workflows, and modern AI orchestration frameworks. This role is ideal for someone passionate about applied AI, innovation, and translating cutting‑edge research into real‑world impact for leading organizations.
##What will your typical day look like?
- Designing and implementing LLM-based applications using Python, with a focus on robustness, scalability, and enterprise readiness.
- Building and optimizing Retrieval-Augmented Generation (RAG) pipelines, including hybrid search, multi-vector retrieval, and advanced embedding strategies.
- Developing agentic AI systems using LangGraph, including multi-step reasoning agents, planner–executor patterns, and tool-calling workflows.
- Experimenting with prompt strategies, model selection, and evaluation techniques to improve accuracy, latency, and cost efficiency.
- Designing and integrating APIs and microservices to enable seamless consumption of AI capabilities across platforms.
- Applying traditional machine learning techniques, such as clustering, to enhance data understanding and augment LLM solutions.
- Partnering with data scientists, engineers, and product teams to move solutions from prototype to production.
- Staying current with emerging trends in LLMs, NLP, and agentic architectures, and contributing to Deloitte’s AI thought leadership and accelerators.
##About the team
This is your opportunity to work in Operate at Deloitte. Operate services harness the latest technologies, talent, and capabilities from all over the world to deliver ongoing outcomes and client value. We do more than traditional business process outsourcing. We do more than just “keeping the lights on.” We work shoulder-to-shoulder with clients and their customers, constantly adapting to the pace of change, to ideate, innovate, and embed continuous advantage at the heart of their operations. And we do it with the kind of drive and passion that comes from loving what you do—and who you do it with.
##Enough about us, let’s talk about you
You are someone with these skills, experience and qualifications:
- Strong proficiency in Python, with experience building production‑grade AI and data applications.
- Hands‑on experience with LangChain and LangGraph, including the design and orchestration of complex agent workflows.
- Deep understanding and practical implementation of Retrieval‑Augmented Generation (RAG) solutions.
- Experience with multi‑agent systems, including agent collaboration, coordination, and role‑based reasoning patterns.
- Knowledge of memory systems for LLM applications, including short‑term and long‑term memory, persistence strategies, and conversational checkpoints.
It would be great for you to have some of these nice to haves as well:
- Solid foundation in Natural Language Processing (NLP) concepts and techniques.
- Experience designing and integrating APIs and microservices to support scalable AI solutions.
- Familiarity with traditional machine learning approaches, including clustering techniques.
- Advanced experience in Agentic AI Design & Orchestration, including multi‑step reasoning agents, tool‑calling agents, planner–executor patterns, and LangGraph‑based agent workflows.
- Exposure to optimizing LLM performance, latency, and cost efficiency in production environments.
##Total Rewards
The salary range for this position is $72,000 - $138,000, and individuals may be eligible to participate in our bonus program. Deloitte is fair and competitive when it comes to the salaries of our people. We regularly benchmark across a variety of positions, industries, sectors, targets, and levels. Our approach is grounded on recognizing people's unique strengths and contributions and rewarding the value that they deliver.
Our Total Rewards Package extends well beyond traditional compensation and benefit programs and is designed to recognize employee contributions, encourage personal wellness, and support firm growth. Along with a competitive base salary and variable pay opportunities, we offer a wide array of initiatives that differentiate us as a people-first organization. On top of our regular paid vacation days, some examples include: $4,000 per year for mental health support benefits, a $1,300 flexible benefit spending account, firm-wide closures known as "Deloitte Days", dedicated days of for learning (known as Development and Innovation Days), flexible work arrangements and a hybrid work structure.
Our promise to our people: Deloitte is where potential comes to life.
Be yourself, and more.
We are a group of talented people who want to learn, gain experience, and develop skills. Wherever you are in your career, we want you to advance.
You shape how we make impact.
Diverse perspectives and life experiences make us better. Whoever you are and wherever you’re from, we want you to feel like you belong here. We provide flexible working options to support you and how you can contribute.
Be the leader you want to be
Some guide teams, some change culture, some build essential expertise. We offer opportunities and experiences that support your continuing growth as a leader.
Have as many careers as you want.
We are uniquely able to offer you new challenges and roles – and prepare you for them. We bring together people with unique experiences and talents, and we are the place to develop a lasting network of friends, peers, and mentors.
The next step is yours
At Deloitte, we are all about doing business inclusively – that starts with having diverse colleagues of all abilities. Deloitte encourages applications from all qualified candidates who represent the full diversity of communities across Canada. This includes, but is not limited to, people with disabilities, candidates from Indigenous communities, and candidates from the Black community in support of living our values, creating a culture of Diversity Equity and Inclusion and our commitment to our AccessAbility Action Plan, Reconciliation Action Plan and the BlackNorth Initiative.
We encourage you to connect with us at accessiblecareers@deloitte.ca if you require an accommodation for the recruitment process (including alternate formats of materials, accessible meeting rooms or other accommodations) or indigenouscareers@deloitte.ca for any questions relating to careers for Indigenous peoples at Deloitte (First Nations, Inuit, Métis).
When you apply, we will review your application using Deloitte's Global Talent Standards to ensure a consistent recruitment experience. Our recruitment advisors and hiring teams will utilize human screening combined with AI technology to help identify the skills and qualities that matter most to our business, while safeguarding your privacy and using AI responsibly.
Deloitte Canada has 20 offices with representation across most of the country. We acknowledge that Deloitte offices stand on traditional, treaty, and unceded territories in what is now known as Canada. We recognize that Indigenous Peoples have been the caretakers of this land since time immemorial, nurturing its resources and preserving its natural beauty. We acknowledge this land is still home to many First Nations, Inuit, and Métis Peoples, who continue to maintain their deep connection to the land and its sacred teachings. We humbly acknowledge that we are all Treaty people, and we commit to fostering a relationship of respect, collaboration, and stewardship with Indigenous communities in our shared goal of reconciliation and environmental sustainability.
About Deloitte
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Python & Large Language Model (LLM) Developer - Operate
Top Benefits
About the role
**Job Type:**Temporary Contract
**Work Model:**Hybrid
**Reference code:**132703
**Primary Location:**Toronto, ON
**All Available Locations:**Toronto, ON
Our Purpose
At Deloitte, our Purpose is to make an impact that matters. We exist to inspire and help our people, organizations, communities, and countries to thrive by building a better future. Our work underpins a prosperous society where people can find meaning and opportunity. It builds consumer and business confidence, empowers organizations to find imaginative ways of deploying capital, enables fair, trusted, and functioning social and economic institutions, and allows our friends, families, and communities to enjoy the quality of life that comes with a sustainable future. And as the largest 100% Canadian-owned and operated professional services firm in our country, we are proud to work alongside our clients to make a positive impact for all Canadians.
By living our Purpose, we will make an impact that matters.
- Have many careers in one Firm.
- Enjoy flexible, proactive, and practical benefits that foster a culture of well-being and connectedness.
- Learn from deep subject matter experts through mentoring and on the job coaching
##Summary
As a Python & Large Language Model (LLM) Developer, you will be at the forefront of designing and delivering next‑generation AI solutions that solve complex business problems. In this 1-Year fixed term role, you will work with cross‑functional teams to build scalable, production‑ready LLM applications leveraging advanced retrieval techniques, agentic workflows, and modern AI orchestration frameworks. This role is ideal for someone passionate about applied AI, innovation, and translating cutting‑edge research into real‑world impact for leading organizations.
##What will your typical day look like?
- Designing and implementing LLM-based applications using Python, with a focus on robustness, scalability, and enterprise readiness.
- Building and optimizing Retrieval-Augmented Generation (RAG) pipelines, including hybrid search, multi-vector retrieval, and advanced embedding strategies.
- Developing agentic AI systems using LangGraph, including multi-step reasoning agents, planner–executor patterns, and tool-calling workflows.
- Experimenting with prompt strategies, model selection, and evaluation techniques to improve accuracy, latency, and cost efficiency.
- Designing and integrating APIs and microservices to enable seamless consumption of AI capabilities across platforms.
- Applying traditional machine learning techniques, such as clustering, to enhance data understanding and augment LLM solutions.
- Partnering with data scientists, engineers, and product teams to move solutions from prototype to production.
- Staying current with emerging trends in LLMs, NLP, and agentic architectures, and contributing to Deloitte’s AI thought leadership and accelerators.
##About the team
This is your opportunity to work in Operate at Deloitte. Operate services harness the latest technologies, talent, and capabilities from all over the world to deliver ongoing outcomes and client value. We do more than traditional business process outsourcing. We do more than just “keeping the lights on.” We work shoulder-to-shoulder with clients and their customers, constantly adapting to the pace of change, to ideate, innovate, and embed continuous advantage at the heart of their operations. And we do it with the kind of drive and passion that comes from loving what you do—and who you do it with.
##Enough about us, let’s talk about you
You are someone with these skills, experience and qualifications:
- Strong proficiency in Python, with experience building production‑grade AI and data applications.
- Hands‑on experience with LangChain and LangGraph, including the design and orchestration of complex agent workflows.
- Deep understanding and practical implementation of Retrieval‑Augmented Generation (RAG) solutions.
- Experience with multi‑agent systems, including agent collaboration, coordination, and role‑based reasoning patterns.
- Knowledge of memory systems for LLM applications, including short‑term and long‑term memory, persistence strategies, and conversational checkpoints.
It would be great for you to have some of these nice to haves as well:
- Solid foundation in Natural Language Processing (NLP) concepts and techniques.
- Experience designing and integrating APIs and microservices to support scalable AI solutions.
- Familiarity with traditional machine learning approaches, including clustering techniques.
- Advanced experience in Agentic AI Design & Orchestration, including multi‑step reasoning agents, tool‑calling agents, planner–executor patterns, and LangGraph‑based agent workflows.
- Exposure to optimizing LLM performance, latency, and cost efficiency in production environments.
##Total Rewards
The salary range for this position is $72,000 - $138,000, and individuals may be eligible to participate in our bonus program. Deloitte is fair and competitive when it comes to the salaries of our people. We regularly benchmark across a variety of positions, industries, sectors, targets, and levels. Our approach is grounded on recognizing people's unique strengths and contributions and rewarding the value that they deliver.
Our Total Rewards Package extends well beyond traditional compensation and benefit programs and is designed to recognize employee contributions, encourage personal wellness, and support firm growth. Along with a competitive base salary and variable pay opportunities, we offer a wide array of initiatives that differentiate us as a people-first organization. On top of our regular paid vacation days, some examples include: $4,000 per year for mental health support benefits, a $1,300 flexible benefit spending account, firm-wide closures known as "Deloitte Days", dedicated days of for learning (known as Development and Innovation Days), flexible work arrangements and a hybrid work structure.
Our promise to our people: Deloitte is where potential comes to life.
Be yourself, and more.
We are a group of talented people who want to learn, gain experience, and develop skills. Wherever you are in your career, we want you to advance.
You shape how we make impact.
Diverse perspectives and life experiences make us better. Whoever you are and wherever you’re from, we want you to feel like you belong here. We provide flexible working options to support you and how you can contribute.
Be the leader you want to be
Some guide teams, some change culture, some build essential expertise. We offer opportunities and experiences that support your continuing growth as a leader.
Have as many careers as you want.
We are uniquely able to offer you new challenges and roles – and prepare you for them. We bring together people with unique experiences and talents, and we are the place to develop a lasting network of friends, peers, and mentors.
The next step is yours
At Deloitte, we are all about doing business inclusively – that starts with having diverse colleagues of all abilities. Deloitte encourages applications from all qualified candidates who represent the full diversity of communities across Canada. This includes, but is not limited to, people with disabilities, candidates from Indigenous communities, and candidates from the Black community in support of living our values, creating a culture of Diversity Equity and Inclusion and our commitment to our AccessAbility Action Plan, Reconciliation Action Plan and the BlackNorth Initiative.
We encourage you to connect with us at accessiblecareers@deloitte.ca if you require an accommodation for the recruitment process (including alternate formats of materials, accessible meeting rooms or other accommodations) or indigenouscareers@deloitte.ca for any questions relating to careers for Indigenous peoples at Deloitte (First Nations, Inuit, Métis).
When you apply, we will review your application using Deloitte's Global Talent Standards to ensure a consistent recruitment experience. Our recruitment advisors and hiring teams will utilize human screening combined with AI technology to help identify the skills and qualities that matter most to our business, while safeguarding your privacy and using AI responsibly.
Deloitte Canada has 20 offices with representation across most of the country. We acknowledge that Deloitte offices stand on traditional, treaty, and unceded territories in what is now known as Canada. We recognize that Indigenous Peoples have been the caretakers of this land since time immemorial, nurturing its resources and preserving its natural beauty. We acknowledge this land is still home to many First Nations, Inuit, and Métis Peoples, who continue to maintain their deep connection to the land and its sacred teachings. We humbly acknowledge that we are all Treaty people, and we commit to fostering a relationship of respect, collaboration, and stewardship with Indigenous communities in our shared goal of reconciliation and environmental sustainability.