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Added 2 months ago
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Senior Manager, Data Engineering
Moneris
Remote, Canada
- Full-time
- Remote
As the Senior Manager, Data Engineering, you will lead the data engineering function responsible for delivering reliable, scalable, and secure data platforms that power Moneris' business…
Added 1 month ago
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Lead Phyton and Generative AI Engineer- Vice President
Citi
Remote, Canada
- Full-time
- Remote
We're searching for a highly skilled and experienced senior engineer and Python expert to lead the design and development of the various AI-related technologies as part of Services Tech AI…
Added 5 months ago
DI
kdb+ Developer (Relocation to New York)
Data Intellect
Toronto, Ontario
- Full-time
Supporting project delivery alongside Project Managers and senior developers.
Added 4 months ago
DI
kdb+ Engineer
Data Intellect
Toronto, Ontario
- Full-time
If you’re a kdb+ developer ready to deepen your skills, contribute to impactful projects and grow in a supportive, high-performance environment - this is your opportunity!
Added 4 months ago
DI
Senior kdb+ Engineer
Data Intellect
Toronto, Ontario
- Full-time
If you're a proficient kdb+ developer ready to lead, innovate and make an impact, we want to hear from you.
Added 3 months ago
Senior Full Stack AI Engineer
Ombud
Quinte West, Ontario
We're hiring a senior full-stack engineer to build the next generation of Ombud's agentic AI platform. The work splits across two domains: building the agentic engine itself (LlamaIndex /…
Added 1 month ago
AN
Senior/Lead Software Engineer, Network Systems
Arista Networks
Vancouver, BC
- Full-time
Arista Networks is looking for world-class Senior/Lead Network Systems software engineers.
Added 1 month ago
AN
Senior/Lead Software Engineer, Layer1
Arista Networks
Vancouver, BC
- Full-time
Develop and maintain features using C, C++ and Python, review and contribute to functional and design specifications. Build automated tests and test infrastructure to test the features.
Added 1 month ago
AN
BIOS Senior/Lead Software Engineer
Arista Networks
Vancouver, BC
- Full-time
Develop automated tests using C, C++ and Python to validate your features.
Added 1 month ago
AN
Senior/Lead Software Engineer (Packet Forwarding Engines)
Arista Networks
Vancouver, BC
- Full-time
Independently implement solutions to small-sized problems in our packet forwarding engine software and system software using the C, C++, and python programming languages.
Added 1 month ago
AN
Senior Software Engineer, Linux Kernel
Arista Networks
Vancouver, BC
- Full-time
Develop and maintain EOS Kernel features and tests using C, C++ and Python, review and contribute to functional and design specifications. Build automated tests and test infrastructure to…
Added 4 months ago
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Senior Geographic Information System Analyst
ADGA Group Consultants Inc
Ottawa, Ontario
- $80 to $120 CAD / hour
- Contract
We are seeking a skilled Geographic Software Developer to support the development, integration, and maintenance of GIS-enabled web applications and supporting infrastructure within a secure…
Added 4 months ago
AG
Senior Technical Architect - Linux Systems & Cloud
ADGA Group Consultants Inc
Ottawa, Ontario
- $130 to $150 CAD / hour
- Contract
Develop and maintain Bash, PowerShell, and Python scripts to automate administrative and operational tasks
Added 1 month ago
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Senior Quality Engineer - Neurodiversity Hiring Initiative
Specialisterne
Toronto, ON
- Full-time
Build scalable automation solutions using Python and modern testing tools such as Playwright, with a focus on maintainable framework design, CI/CD integration, and reducing dependency on…
Added 1 month ago
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Senior Software Developer
Autodesk
Toronto, ON · Montreal, QC · AMER - Canada - Ontario - Toronto - University Ave
- Full-time
We are seeking a passionate and experienced Senior Software Developer to join a Data Services team focused on delivering core record- and entity-management services. You will help design,…
Added 3 months ago
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Senior Software Engineer - Professional Services
Trackunit
London, Ontario
- Full-time
…the kind of high-quality engineering that makes Trackunit’s developer experience a genuine competitive advantage for our…
Added 3 months ago
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Solution Consultant, NAM
Omilia
Remote, Canada
- Remote
The Solution Consultant a senior individual contributor who serves as the primary technical authority in Account Executive-led sales cycles within an assigned region or global segment. The…
Added 3 months ago
JI
Senior Data Scientist | Scientifique de données senior
Jesta I.S.
Westmount, Quebec · Montreal, Quebec
- Full-time
We are seeking a Senior Data Scientist with deep expertise across the full spectrum of modern AI - from classical predictive modelling to large language models, agentic AI systems, and…
Added 3 months ago
WT
Senior Software Developer, Bank & Brokerage Linking
Wealthsimple Technologies
Remote, Canada
- $151,200 to $189,000 CAD / year
- Full-time
- Remote
Ruby, Java/Kotlin, and Python across the broader platform
Added 1 month ago
MS
Senior Software Security Engineer
Motorola Solutions
Vancouver, BC · Quebec, QC · AB · BC · ON
- Full-time
This Senior Software Security Engineer will be responsible for analyzing software designs and implementations from a security perspective, identifying and proposing remediations to security…
Added 3 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 3 months ago
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Director, Data Science
Mastercard
Vancouver, British Columbia · Toronto, Ontario
- Full-time
Communicate strategy, progress, trade-offs, and business value clearly to senior leadership
Added 3 months ago
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AI Engineer - Assistant Vice President
Citi
Remote, Canada
- Full-time
- Remote
We are seeking a highly skilled and passionate Senior GenAI Specialist to join our team in Mississauga, Canada. You will play a key role in designing, developing, and implementing…
Added 1 month ago
Statistical Programming Intern
ProCogia
Vancouver, BC
…that help modernize analytical codebases across SAS, R, and Python, with a particular focus on using AI-assisted development tools to improve translation, testing, and workflow…
Added 27 days ago
Senior Actuarial Associate - Global Actuarial Consulting Group
Munich Re
Toronto, ON
In addition, Senior Actuarial Associates are expected to:

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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