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Added 3 months ago
TC
Supervisor, Investor Relations (Private Assets)
The Citco Group Limited
Toronto, ON
- Full-time
…solutions means our people are equipped to deliver a seamless client…
Added 4 months ago
8M
Experienced Inside Mortgage Agent (Edmonton/Hybrid)
8Twelve Mortgage Corporation
Edmonton, Alberta
- Full-time
…dedicated referral partners multiple deals, nurture and develop client relationships, and work alongside our Underwriters to fund…
Added 3 months ago
P
Enterprise Engineering Services Sales, Director
PwC
Toronto, Ontario
- Full-time
…to expand our presence. This role is designed to bring new client and alliance relationships, strategic sales leadership, and market coverage to accelerate growth - helping to open doors in…
Added 3 months ago
P
Senior Associate, Salesforce Technical Consultant
PwC
Calgary, Alberta · Edmonton, Alberta · Vancouver, British Columbia · Ottawa, Ontario · Toronto, Ontario
- Full-time
At PwC, our people in business application consulting specialise in consulting services for a variety of business applications, helping clients optimise operational efficiency. These…
Added 3 months ago
P
U.S. Tax, Senior Associate (Bilingual FR/EN)
PwC
Montreal, Quebec · Quebec, Quebec
- Full-time
A career in our International Tax Desk practice, within International Tax services, will provide you with the opportunity to help multinational companies address their cross-border tax…
Added 2 months ago
A
CCaaS Tech Lead
Accenture
Remote, Canada
- Full-time
- Remote
…by transforming organizations through standout products and services; by building and delivering award-winning campaigns so brands can engage and communicate creatively with customers at…
Added 2 months ago
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Financial Reporting & Tax Compliance, Manager
PwC
Vaughan, ON
- Full-time
In tax accounting services at PwC, you will assist businesses in preparing and reviewing tax provisions, tax returns, and financial statements, confirming compliance with accounting…
Added 4 months ago
D
Advisory Agent, Member and Client Experience
Desjardins
Remote, Canada
- Full-time
- Remote
As a member and client experience advisory, you improve the experience of members and customers by advising them on their banking transactions and promoting Desjardins products and…
Added 4 months ago
P
Performance and Restructuring Senior Associate (Bilingual FR/EN)
PwC
Montreal, Quebec
- Full-time
…Bankruptcy Restructuring, Business Liquidations, Cash Flow Analysis, Client Management, Communication, Conducting Research, Corporate Development, Corporate Finance, Corporate Management,…
Added 3 months ago
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Transaction Services Manager  - Financial Services (Bilingual FR/EN)
PwC
Vancouver, British Columbia · Toronto, Ontario
- Full-time
Financial Analysis and Due Diligence: Undertake in-depth financial analysis of client and target financial data to identify deal issues and business value drivers in a wide range of…
Added 2 months ago
MC
Bilingual Spanish Recruiter
MCI Careers
Canada
- Full-time
MCI is one of the fastest-growing tech-enabled business services companies in the USA, with a strong call center footprint and operations that extend across multiple countries. We deliver…
Added 4 months ago
P
Accounting and Transaction Advisory Senior Manager (Bilingual FR/EN)
PwC
Montreal, Quebec
- Full-time
A career within CMAAS will provide you with the opportunity to be responsible for complex financial reporting issues around transactions and other transformational events. You’ll tackle…
Added 3 months ago
D
Advisory Agent, Member and Client Experience
Desjardins
Remote, Canada
- Full-time
- Remote
As a member and client experience advisory agent, you improve the experience of members and customers by advising them on their banking transactions and promoting Desjardins products and…
Added 2 months ago
P
SAP FICO, Senior Associate (Bilingual FR/EN)
PwC
Montreal, QC · Quebec, QC
- Full-time
At PwC, our people in business application consulting specialise in consulting services for a variety of business applications, helping clients optimise operational efficiency. These…
Added 4 months ago
HI
Wealth Management & Insurance Planning Specialist
HUB International
Remote, Canada
- Full-time
- Remote
Hub Financial, a division of HUB International, is one of Canada’s largest independent Managing General Agencies (MGA). Specializing in life insurance, investments, and wealth management,…
Added 4 months ago
A
Agent.e de perception bilingue (Hybride) / Bilingual Perception Agent (Hybrid)
Alterfina
QC
- Full-time
Comme agent(e) de recouvrement, tu joueras un rôle clé dans la gestion des comptes en souffrance et l’accompagnement des clients vers des solutions de paiement réalistes et adaptées à leur…
Added 4 months ago
PG
Lead Full Stack Developer
Publicis Groupe Holdings B.V
Toronto, Ontario
- Full-time
…platform - React frontend, Spring Boot backend, FastAPI agentic services, agent SDKs on top of LLM providers. You are equally comfortable reviewing a database migration, debugging a prod…
Added 1 month ago
Associate Insurance Service Advisor - Halifax, NS
Scotiabank
Toronto, Ontario · Halifax, NS
…reviewing statements and notices as they are distributed to the Agent of Record; and flagging any policies that require attention; undertaking policy analysis; requesting in-force…
Added 1 month ago
Montreal - US Corporate Tax - Tax Staff
EY
Montreal, QC
Join EY Montreal’s U.S. Tax practice and have direct involvement in meaningful client work with leading infrastructure, private equity, and multinational clients, while gaining hands-on…
Added 4 months ago
HI
Wealth Management & Insurance Planning Specialist
HUB International
Remote, Canada
- Full-time
- Remote
Hub Financial, a division of HUB International, is one of Canada’s largest independent Managing General Agencies (MGA). Specializing in life insurance, investments, and wealth management.…
Added 4 months ago
P
Risk Modelling Services, Actuarial P&C Senior Associate
PwC
Toronto, Ontario
- Full-time
A career in our Risk Modelling Services (RMS) team as a Property & Casualty Actuary, will provide you with the opportunity to contribute risk modeling and general insurance advice and…
Added 3 months ago
D
Financial Services Agent
Desjardins
Remote, Canada
- Full-time
- Remote
As a financial professional, you’ll play a key role, listening attentively to our members and clients to help optimize their financial wellbeing 💼. You’ll provide exceptional client…
Added 2 months ago
MC
Senior AI Agent Developer
MCI Careers
Canada
- Other
MCI is one of the fastest-growing tech-enabled business services companies in the USA, with a strong call center footprint and operations that extend across multiple countries. We deliver…
Added 2 months ago
MC
AI Workflow Automation Manager
MCI Careers
Canada
- Other
MCI is one of the fastest-growing tech-enabled business services companies in the USA, with a strong call center footprint and operations that extend across multiple countries. We deliver…
Added 1 month ago
Legal Assistant, Financial Services
Dentons
Edmonton, AB
The Intermediate Legal Assistant role within our Financial Services group requires a unique blend of advanced skills and experience in providing legal administrative support. This position…

Publicis Groupe Holdings B.V

Lead Full Stack Developer

111 Queen Street East, Toronto, ON, M5C 1S2, Canada

Compensation: The salary range for this position is $130,000–$150,000 per year, based on experience, skills, and relevant certifications. · Full-time

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Job details

Pay: Compensation: The salary range for this position is $130,000–$150,000 per year, based on experience, skills, and relevant certifications.
Job type: Full-time
Apply by: Jul 6, 2027
Posting language: English
Posted: Jun 16, 2026

Original job description

Company Description

Saatchi & Saatchi is an advertising agency with the belief that creativity, data, media and technology should all work together, and we use that to influence human behavior and drive success for clients. S&S is one of the world's largest agency networks with 114 offices and more than 6000 employees globally.

Here in our Toronto office we work with some of the countries most valued brands including Toyota, Buckley's, and Children's Advil, as well as several under the Mondelez banner (Crispers, Oreo, and Chips Ahoy just to name a few). We’re an award winning agency in both creativity and effectiveness, so it’s really important for us here to convert that innovation and the great ideas into real tangible business results for the organization.

Overview

Saatchi & Saatchi is seeking a Lead Full Stack Developer for an innovative AI platform initiative.You have 8+ years building production software systems and at least a few years leading or anchoring a team technically. You are a hands-on builder and you hold the architectural picture of a multi-tier platform - React frontend, Spring Boot backend, FastAPI agentic services, agent SDKs on top of LLM providers. You are equally comfortable reviewing a database migration, debugging a prod incident, mentoring a senior engineer, or sitting in a client architecture conversation. You thrive at the intersection of architecture, engineering, and program reality.

Responsibilities

Own the technical direction across the platform's tiers - frontend, backend, agentic/AI services, data, and integrations - and hold the shared mental model of how the system actually fits together.
Pair closely with the Senior Technical PM and Program Director to translate product intent into a credible technical plan, and to surface what is genuinely hard vs. what is just unfamiliar.
Lead architecture and design reviews, write the deciding ADR when needed, and keep a small set of vendor-neutral patterns the team can lean on instead of a sprawl of frameworks.
Stay hands-on in the code - pick up meaningful slices of work, especially across tier boundaries (e.g. backend ↔ agentic, frontend ↔ auth/RBAC, infra-aware app changes).
Be a first-class code reviewer across the stack: you set the bar for clarity, testability, security, and operability, and you raise the team's bar by reviewing thoughtfully.
Mentor mid-level and senior engineers; coach them through technical decisions, on-call experiences, and difficult code reviews.
Partner with the Platform Engineer on production reliability - capacity, scaling, observability, and incident response - and own application-side reliability concerns.
Drive integration architecture with internal and external systems using API-first and event-driven patterns; ensure identity, authorization, data protection, and auditability are built in, not bolted on.
Champion the LLM/agent layer - agent orchestration, tool/plugin design, prompt and evaluation loops, provider abstraction (e.g. Vertex AI, Claude on Vertex, OpenAI) - and keep us out of vendor lock-in we cannot pay for.
Build redundancy on yourself - pair, document, rotate ownership, and ensure no critical system has exactly one person who understands it.

Qualifications

8+ years in software engineering, with meaningful time as a hands-on lead, staff engineer, or solutions architect on production systems.
Proven experience designing and delivering complex, multi-service platforms - not just one service or one tier.
Strong backend depth in at least one modern stack (Java/Spring Boot, Python/FastAPI, Node, Go, .NET); able to ramp on the others.
Solid frontend literacy - comfortable reading and reviewing modern React/TypeScript code and reasoning about state management, auth, and performance.
Strong cloud architecture background, preferably GCP (we run primarily on GKE); willing to deepen wherever the platform takes us.
Deep understanding of API design, integration patterns, distributed systems, and the failure modes that come with them.
Experience with containerization, Kubernetes, and modern CI/CD; you do not need to be a DevOps specialist, but you must operate well in that world.
Real production experience with AI / LLM systems - agents, RAG, evaluation, tool integration - or a strong, demonstrable plan for getting there.
Comfortable working within Agile delivery models (Scrum, Kanban, or whatever variant actually ships).
Excellent communication: you can explain a complex architecture to a non-technical executive and disagree with a senior engineer respectfully and with evidence.

Required Soft Skills

Hands-on bias - you reach for the code, the logs, and the diagram before you reach for the meeting invite.
Calm, decisive judgment when there is no obviously right answer.
Strong written communication - you can write a one-page architecture rationale that future-you will still understand.
Generous mentorship instinct - you make the people around you better, on purpose.
Comfortable with ambiguity and willing to make reversible decisions quickly while flagging the irreversible ones for broader input.
Pragmatic about technology choices - you optimize for the team's ability to operate the system, not for personal stack preferences.
Honest about what you do and do not know; willing to say 'I'll find out' and then actually find out.

Nice to Have

Prior experience working inside Publicis Groupe or another large holding-company agency network.
Production experience with Google ADK, LangGraph, LlamaIndex, or comparable agent frameworks.
Experience with event-driven architectures, domain-driven design, and contract-first integration patterns.
Background in regulated or privacy-sensitive environments (identity, healthcare, financial, marketing-compliance).
Experience supporting multiple products or clients on a shared platform (multi-tenant, multi-brand, white-label).
Comfort with Terraform, Kustomize, or other IaC tooling at a 'can read and improve' level.
Track record contributing to internal developer experience - patterns, scaffolds, golden paths.

Additional Information

Location & Eligibility: Candidates must be based in Canada, with valid Canadian work authorization of at least 12 months.

Hybrid Work: This role is remote. If you are GTA-based, the team meets once a month at our Toronto office (111 Queen St. E, Suite 200, Toronto, ON M5C 1S2).

Time Off:

Up to 3 weeks vacation, with additional paid closure between Christmas and New Year's

Extended long weekends for provincial holidays - we give you both the Monday and Friday so you get a full 4-day break

10 personal days per year

Flexibility & Global Mobility: After completing one year, work remotely for up to 6 weeks per year from any of our 50+ global offices through our Work Your World program.

Benefits: Comprehensive group coverage including:

Medical, dental, and vision care

Psychological and paramedical services

Disability insurance

Fertility support and gender-affirming care

Dedicated internal guidance programs for employees navigating cancer, fertility treatments, or gender transition

Parental Leave Top up: A 100% salary top up program once approved for Employment Insurance for the first 6 weeks of your parental Leave.

Defined Contribution Pension Plan: Employees have the option to sign up to voluntarily contribute to a DCPP where Saatchi will match the employee contributions up to 5% after completing one year.

Gym Membership: Corporate Membership rates at Good Life Fitness

Free access to a financial planner & more…

Compensation: The salary range for this position is $130,000–$150,000 per year, based on experience, skills, and relevant certifications. We believe in pay transparency and are committed to offering competitive, market-aligned compensation.

We use artificial intelligence (AI) tools to support parts of our hiring process, such as reviewing applications or analyzing resumes. These tools assist our recruitment team but never replace human decision-making. We believe in a human-first approach, where your experience and potential are recognized by people.

Saatchi & Saatchi is committed to building a diverse workforce representative of our community. We encourage and are pleased to consider all qualified candidates, without regard to race, colour, citizenship, religion, sex, marital / family status, sexual orientation, gender identity, aboriginal status, age, disability or persons who may require an accommodation, to apply. If you require a specific accommodation please contact Human Resources at 416-925-7733 or by email at inquiries@publicisna.com.

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More about this job

Responsibilities

Lead the technical direction and architecture of a multi-tier AI platform, overseeing frontend, backend, and agentic services. Mentor senior engineers and partner with product management to translate business intent into scalable technical plans.

Requirements

Requires 8+ years of software engineering experience with a proven track record of leading production systems and designing complex multi-service platforms. Must have deep expertise in modern backend stacks, cloud architecture (preferably GCP), and production experience with AI/LLM systems.

Skills

React
TypeScript
Spring Boot
FastAPI
Java
Python
Google Cloud Platform
Kubernetes
LLM Orchestration
API Design
Distributed Systems
CI/CD
RAG
System Architecture
Mentorship
Agile

Benefits

Medical Care
Dental Care
Vision Care
Psychological Services
Paramedical Services
Disability Insurance
Fertility Support
Gender-affirming Care
Parental Leave Top up
Gym Membership
Financial Planner Access
Paid Vacation
Paid Holiday Closures

Visa sponsorship

Not detected in the job text

Keywords

React
TypeScript
Spring Boot
FastAPI
Java
Python
GCP
GKE
Kubernetes
LLM
RAG
Vertex AI
Claude
OpenAI
LangGraph
LlamaIndex
API-first
Event-driven Architecture
Domain-driven Design
Terraform
Kustomize
CI/CD
RBAC
Distributed Systems
Agile
Scrum
Kanban
Multi-tenant
Software Architecture
Agentic Services

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