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Added 5 months ago
Core Java Developer (contract)
Capgemini
Montreal, Quebec
Contract
We are seeking a highly experienced Senior Java Developer to join the Ops Tech department. In this pivotal role, you will contribute significantly to the successful delivery of the UPE…
Added 3 months ago
Senior Back End Engineer (Data Platform)
Forma.ai
Toronto, Ontario
$150,000 to $190,000 CAD / year
Full-time
Proficiency in at least one production-grade language such as Python, Java, Scala, Kotlin, Go, C#, or similar.
Added 2 months ago
Senior Backend & Infrastructure Engineer
Scispot
Canada
Full-time
Build and evolve backend services in Python and FastAPI, Java and Spring Boot, or closely related frameworks.
Added 3 months ago
Principal Software Engineer
PointClickCare
Mississauga, Ontario
$156,000 to $174,000 CAD / year
Full-time
Experience writing clean code that performs well at scale using Java. Experience with UI development and React frameworks.
Added 1 month ago
Principal, Policy Administration System (PAS) – Personal Lines
Intact FC
Montreal, QC
Full-time
Our PAS is built in-house - a substantial Java platform with an Angular front end, integrated with a broad landscape of insurance systems. We are modernizing this mission-critical platform,…
Added 1 month ago
Technical Lead Analyst - Billing & Pricing Platforms
Scotiabank
Toronto, ON
Hands-on technical expertise (e.g., Java/Spring Boot, databases) with the ability to guide and review engineering work.
Added 3 months ago
Founding Software Engineer
Residen
Toronto, Ontario
$110,000 to $130,000 CAD / year
Full-time
Backend: REST APIs in Java/Spring Boot, plus the integrations that power the core product.
Added 3 months ago
Software Engineer
RAVL
Toronto, Ontario
Full-time
Frameworks & Tooling: Spring Boot, .NET Core, Express/Fastify, gRPC, REST, OpenAPI
Added 28 days ago
VP Senior Applied AI Full-Stack Engineer
Citi
Mississauga, ON
Full-time
…You will design and implement robust backend microservices (Java/Spring Boot) optimized for low-latency data retrieval, heavy aggregation, and streaming large datasets to the frontend.…
Added 1 month ago
Associate Software Engineer
Scotiabank
Toronto, ON
Experience in developing with a modern technology stack (i.e. React, Spring Boot).
Added 2 months ago
Senior Backend Software Engineer
Top Hat
Remote, Canada
Full-time · Remote
…for an engineer who is not only a master of their craft in Java and Spring Boot but also a dedicated mentor and a proactive…
Added 27 days ago
Staff Full-Stack Product Software Engineer
Equinix
Toronto, ON
Full-time
Java, Spring Boot, JPA/Spring Data, and React with TypeScript
Added 16 days ago
Senior Web Back-End Developer
Air Canada Vacations
Montreal, QC · Greater Montreal Metropolitan Area
Full-time
Languages & Frameworks:Java (11+), Spring Boot, Spring Cloud, Spring Security, RESTful APIs
Added 1 month ago
Java Full Stack Developer - VP
Citi
Mississauga, ON
Full-time
Deep experience with backend frameworks such as Spring Boot / Spring Core and Flask / FastAPI
Added 1 month ago
Python Full Stack Developer - VP
Citi
Mississauga, ON
Full-time
Deep experience with backend frameworks such as Spring Boot / Spring Core and Flask / FastAPI
Added 16 days ago
Senior Java Developer, TD Securities
TD
Toronto, ON
Full-time
We are looking for a motivated Senior Java Developer (Engineer I) to join our Trading Risk Warehouse platform team within TD Securities. The successful candidate will contribute to the…
Added 16 days ago
Full Stack Engineer
BuzzClan
ON · Ontario, Canada
Full-time
We are looking for a Full Stack Java Developer with 1–5 years of experience in designing, developing, testing, and maintaining web applications. The ideal candidate should have strong…
Added 4 months ago
Manager, Software Engineering - Identity Platform
Marqeta
Remote, Canada
Full-time · Remote
…product lines and paradigms: from synchronous API services (Java/Spring Boot) to batch and event-driven ETL pipelines (Python/Airflow), and you know how to apply the right tool for each…
Added 1 month ago
Senior Back-end(Java) Developer
VSG Recruitment
Remote, Canada
Full-time · Remote
Develop solutions using Java, Spring and Spring Boot.
Added 3 months ago
Full Stack Java Developer Lead
CGI
Toronto, Ontario
Full-time
Build modern full-stack applications using Java (Spring Boot) and front-end frameworks like React or Angular.
Added 2 months ago
Senior Software Developer
Caseware
Toronto, ON
$120,000 to $140,000 CAD / year
Full-time
Experience building highly distributed microservice architecture using Java 17/21, Spring Boot 3.x, and Gradle
Added 3 months ago
Lead Full Stack Developer
Saatchi & Saatchi Canada
Canada
Full-time
Strong backend depth in at least one modern stack (Java/Spring Boot, Python/FastAPI, Node, Go, .NET); able to ramp on the others.
Added 3 months ago
Thanks for visiting our Job Board. Please review our open positions and apply to the positions that match your qualifications.
Evertz
Burlington, Ontario
Full-time
Strong experience with Java, Spring Boot, and scalable backend development
Added 3 months ago
Senior Java Software Engineer
LanceSoft, Inc.
Montreal, Quebec
Contract
- 5-15+ years of a proven development experience in Java 11+, Spring-boot, and RESTful micro-services
Added 1 month ago
Senior Full-Stack Software Developer
Autodesk
Toronto, ON · AMER - Canada - Ontario - Toronto - University Ave
Full-time
Autodesk is looking for a Senior Full-Stack Software Developer to join the Admin Access and Insights team within Autodesk Platform Services. The Admin Access and Insights team is dedicated…

Saatchi & Saatchi Canada

Lead Full Stack Developer

Canada

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
Posting language: English
Posted: Jun 5, 2026

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Original job 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

Own the technical direction across the platform's tiers and translate product intent into a credible technical plan. Lead architecture and design reviews while mentoring mid-level and senior engineers.

Requirements

Candidates should have 8+ years in software engineering with experience in leading production systems. Strong backend and frontend skills are required, along with a solid understanding of cloud architecture and API design.

Skills

Full Stack Development
React
Spring Boot
FastAPI
Cloud Architecture
API Design
Distributed Systems
Kubernetes
CI/CD
AI Systems
Agile Methodologies
Mentorship
Technical Leadership
Database Migration
Code Review
Integration Architecture

Benefits

Medical
Dental
Vision Care
Psychological Services
Paramedical Services
Disability Insurance
Fertility Support
Gender-Affirming Care
Parental Leave Top Up
Gym Membership
Financial Planning

Visa sponsorship

Not detected in the job text

Keywords

Full Stack Developer
Software Engineering
Production Systems
React
Spring Boot
FastAPI
Cloud Architecture
GCP
Kubernetes
CI/CD
AI
LLM
Agile
API Design
Distributed Systems
Mentorship
Technical Leadership
Database Migration
Code Review
Integration Architecture
Event-Driven Architecture
Domain-Driven Design
Terraform
Kustomize
Publicis Groupe
Advertising
Creative
Data
Media
Technology

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