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Added 4 months ago
LS
Lead Tools Programmer | Responsable Programmeur outils
Larian Studios
Quebec, Quebec
- Full-time
…Baldur’s Gate 3 & Divinity: Original Sin 2 is looking for a Lead Tools Programmer to join the team and help us in crafting the high calibre games our fans have come to…
Added 2 months ago
M
Data Transfer Team Lead
Medfar
Montreal, QC
- Full-time
As a Data Transfer Team Lead, you will play a key role in the onboarding experience of our new clients. You will lead the technical team responsible for extracting, transforming, and…
Added 2 months ago
M
Senior DevOps Specialist (SaaS Healthcare)
Medfar
Montreal, QC
- Full-time
In this role, you lead complex projects, drive improvements in infrastructure, observability, and operational processes, and mentor team members. You collaborate with architects, product…
Added 3 months ago
A
Lead Front & Back-End Developer
Astucemedia
Montreal, Quebec
- Full-time
As a Lead Front & Back-End Developer at Astucemedia, you will bridge the gap between high-level architectural vision and daily execution. Working in a high-collaboration environment, you…
Added 4 months ago
PG
Lead Full Stack Developer
Publicis Groupe Holdings B.V
Toronto, Ontario
- Full-time
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…
Added 4 months ago
ST
SR. BILINGUAL TECHNICAL BUSINESS ANALYST / TECH LEAD
Sapsol Technologies Inc
Montreal, Quebec
- Contract
🛠️ Tech Ecosystem: .NET, Azure PaaS, ADF, Blazor/Angular, iOS/MAUI, and Azure DevOps.
Added 3 months ago
SS
Senior Software Developer
Streampoint Solutions
Toronto, Ontario · Etobicoke, Ontario
- Full-time
Our platform manages registration, housing, marketing, lead capture, attendee engagement, and onsite operations for complex events where reliability, performance, and scale matter.
Added 4 months ago
W
Database Application Developer - NETE
Weir
Halifax, Nova Scotia
- Full-time
Weir Marine Engineering currently has a challenging opportunity for a Database Application Developer. This permanent position is based at the Naval Engineering Test Establishment (NETE) in…
Added 4 months ago
GE
Senior Software Engineer
GFL Environmental Inc.
Vaughan, Ontario
- Full-time
We are seeking a highly skilled Senior Full-Stack Developer with 6+ years of experience to lead the digital transformation of our core enterprise applications. You will be responsible for…
Added 4 months ago
J
Principal Software Engineer - Canada
JobGet
Remote, Canada
- $160,000 to $190,000 CAD / year
- Full-time
- Remote
Rigorous Testing & Validation: Lead by example in code quality by defining testing standards and utilizing AI to generate robust test suites and edge-case discovery that ensure…
Added 4 months ago
S
Software Engineer III (FC Ops)
Spreetail
Winnipeg, Manitoba
- Full-time
5+ years of professional software development experience, with a strong backend focus. Deep proficiency in C# and the .NET ecosystem - you can design, build, and maintain production…
Added 4 months ago
MT
Application Architect
McCarthy Tétrault LLP
Vancouver, British Columbia
- Full-time
…and approaches. Together, these principles shape how we work, lead, and grow - every…
Added 4 months ago
MT
Application Architect
McCarthy Tétrault LLP
Toronto, Ontario
- Full-time
…and approaches. Together, these principles shape how we work, lead, and grow - every…
Added 4 months ago
MT
Application Architect
McCarthy Tétrault LLP
Calgary, Alberta
- Full-time
…and approaches. Together, these principles shape how we work, lead, and grow - every…
Added 5 months ago
ML
Enterprise Application Developer
McMillan LLP
Toronto, Ontario
- Full-time
…AI-powered solutions using tools such as Power Automate, C#.NET, BOOMI, ASP.NET, and Azure AI services; identifies, researches, and resolves technical problems and may take a lead role on…
Added 2 months ago
Senior Software Engineer
AutoTrader.ca
Toronto, ON
Identify and reduce technical debt in ways that measurably improve developer velocity and system robustness.
Added 2 months ago
Senior Software Engineer, CMS (Modernization of Registry)
AutoTrader.ca
Toronto, ON
…financial institutions with a focus on scalability, automation, and developer experience. Current work includes containerizing services, upgrading .NET runtimes, strengthening CI/CD and…
Added 2 months ago
Senior Software Engineer, CMS (Auto Repossession & Remarketing)
AutoTrader.ca
Toronto, ON
Identify and reduce technical debt in ways that measurably improve developer velocity and system robustness.
Added 5 months ago
FG
Web Application Developer
Flynn Group of Companies
Mississauga, Ontario
- Full-time
Flynn Group of Companies, North America’s leading building envelope contractor is looking to hire a Web Application Developer to work in our beautiful Mississauga location.
Added 1 month ago
Client Technology - Engineering - Architecture
EY
Toronto, ON
Potentially lead a team of architects in a portfolio or large product, set the overall technology and architecture direction and own its end-to-end delivery in a lead architect’s capacity,…
Added 5 months ago
JI
Intermediate Data Analyst
J.D. Irving, Limited
NS · Dartmouth, NS
- Full-time
…Limited, you are part of a dynamic team of professionals who lead with integrity and are passionate about delivering results. With a culture that nurtures talent and creates an inclusive…
Added 1 month ago
Software Developer Full Stack Angular/.Net
Brightstar Lottery
Dieppe, New Brunswick
We’re looking for a Software Developer III Full Stack (Angular/.NET) to join a collaborative team in a senior-level, hands-on engineering role focused on designing, building, and sustaining…
Added 5 months ago
G
Développeur(euse) logiciel / Software Developer - Appliances Platform (Edge OS)
Genetec
Remote, Canada
- Full-time
- Remote
Collaborate with your team lead to receive guidance and high-level objectives aligned with product vision and priorities
Added 1 month ago
Lead Software Engineer
Scotiabank
Toronto, ON
GBME is searching for a Lead Software Engineer who is eager to boost capabilities of capital markets products and analytics platforms.
Added 6 months ago
M
Sr Eng - Sr MTS - Full Stack Software Development
MDA
Brampton, Ontario
- Full-time
As our Senior Full Stack Developer you will be instrumental in using your skill and experience as part of a team to design, implement, maintain, and test software solutions that are…

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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