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Added 20 mins ago
Senior Software Engineer, Full-Stack Applications - Ratings Technology (Toronto)
Fitch Group
Toronto, ON
Senior Software Engineer, Full-Stack Applications - Ratings Technology
Added 20 mins ago
Sr. Power Platform Developer
Softchoice
Ottawa, ON
…adoption of Microsoft Power Platform at an enterprise level. The Engineer, Low-Code guides clients on employing Power Platform tools - Copilot Studio, Power Apps, Power Automate, Power BI,…
Added 50 mins ago
AI Engineer
Arkion Identity Systems
Toronto, ON · Greater Toronto Area, Canada
Full-time
You will work closely with the Software Architect, Rust Backend Engineers, Senior Frontend Engineer, and Cloud & Deployment Engineer to embed AI into both: our product (NHI / security…
Added 1 hour ago
Software Engineer - Mobile App (Expo/React Native)
TopHat HR
Markham, ON
$95,000 to $105,000 CAD / year
Full-time
Full-stack development. Design, develop, and ship a cross-platform mobile application using Expo and React Native, backed by Node.js and PostgreSQL.
Added 1 hour ago
Senior DevOps Engineer (GitHub, ADO)
Yochana
Toronto, ON
Contract
Added 1 hour ago
Forward Deployed Engineer (FDE) (Mid/Senior Level)
Urban Ridge Supplies
Toronto, ON
Full-time
You have 3+ years (6-10 years for Senior levels) of software engineering or technical delivery experience, with at least one production system you'd be proud to walk us through - ideally in…
Added 1 hour ago
Forward Deployed Engineer (FDE) (Mid/Senior Level)
Urban Ridge Supplies
Toronto, ON
Full-time
You have 3+ years (6-10 years for Senior levels) of software engineering or technical delivery experience, with at least one production system you'd be proud to walk us through - ideally in…
Added 2 hours ago
Software Engineer - Team Lead (Forward Deployed)
Urban Ridge Supplies
Mississauga, ON
Full-time
…drive value. While you may have natural specialties, we expect full-stack capability accelerated by AI - no dedicated frontend, backend, or DevOps…
Added 2 hours ago
Senior Software Engineer - Applied AI
Urban Ridge Supplies
Toronto, ON
Full-time
As our AI capabilities become central to the product, we're hiring a Full Stack Engineer to join the AI team and build these features end-to-end - from designing LLM-powered services and…
Added 2 hours ago
Senior Software Engineer (AI Integration & Modernization)
Urban Ridge Supplies
Markham, ON
Full-time
We are hiring a Senior Software Engineer to own the design and delivery of production AI capabilities across a broad portfolio of software businesses. You will work directly with product…
Added 2 hours ago
Lead, AI/Machine Learning Engineer
Urban Ridge Supplies
Toronto, ON
Full-time
Proven ability to design, build, and maintain production-grade services and full-stack applications that integrate AI capabilities.
Added 2 hours ago
Senior Software Developer, Full Stack, Applied AI Agent Studio
Urban Ridge Supplies
Toronto, ON
Full-time
…mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google’s needs with opportunities to switch teams and projects as…
Added 2 hours ago
Senior Agentic Engineer - JavaScript
Urban Ridge Supplies
Toronto, ON
Full-time
Design and build AI-enabled applications, agentic workflows, developer tools, APIs, data pipelines, and full-stack products.
Added 2 hours ago
Senior Engineer, Applied AI
Urban Ridge Supplies
Toronto, ON
Full-time
This is a high-impact, senior engineering role , where engineers are expected to operate with significant ownership and minimal oversight. The role focuses on building production-ready AI…
Added 2 hours ago
Lead Full-Stack GenAI Engineer
Urban Ridge Supplies
Toronto, ON
Full-time
As a Lead Full-Stack GenAI Engineer , you will lead the hands-on delivery of secure Generative AI and agentic AI solutions from discovery and prototype through production deployment,…
Added 2 hours ago
Senior Agentic Engineer - JavaScript
Urban Ridge Supplies
Toronto, ON
Full-time
Design and build AI-enabled applications, agentic workflows, developer tools, APIs, data pipelines, and full-stack products.
Added 2 hours ago
FDE Senior Engineer, AI & Capital Markets
Urban Ridge Supplies
Mississauga, ON
Full-time
This is a senior, hands-on delivery role with the Forward Deployed Engineering team at KX: part solution engineer, part AI engineer. You work alongside quants, traders, e-trading desks and…
Added 2 hours ago
Principal Quality Architect
Urban Ridge Supplies
Toronto, ON
Full-time
…production features. The role blends test engineering with full-stack development: you'll help build the systems and the safeguards that prove they work. You'll apply agentic development…
Added 2 hours ago
Software Engineer, Applied AI
Urban Ridge Supplies
Toronto, ON
Full-time
5+ years of software engineering, applied AI, full-stack developing experience, with a track record of shipping production systems end-to-end.
Added 2 hours ago
Senior Software Engineer (Conductor)
Urban Ridge Supplies
Toronto, ON
Full-time
As a Senior Software Engineer, you are a full-stack software engineer who works directly alongside healthcare providers to get Conductor live and to make it matter. You take a signed…
Added 2 hours ago
Software Engineer - Testing Frameworks
Baseten
Montreal, QC
$165,000 to $330,000 USD / year
Full-time
…Platform team within the Infrastructure organization. As a senior member of Baseten's Platform Team, you will own the systems that let every engineer at Baseten prove their code works…
Added 8 hours ago
Senior Data Engineer – Ingénieur des données
KPI Digital Solutions
Montreal, QC
Other
Has the title implied, the candidate is a data engineer meaning he is a full fledge experienced developer very solid in both Python and Spark
Added 9 hours ago
Staff Marketing Technology Engineer
Absorb
Remote, Canada
Full-time · Remote
“As our Marketing Technology Engineer, you’ll do more than keep our data platform humming - you’ll build the AI applications and agents that put that data to work, automating how our…
Added 12 hours ago
Senior Full Stack Engineer (Azure Cloud Platform)
HCLTech
ON · Ontario, Canada
$60 to $75 CAD / hour
Contract
We are looking for a hands-on Senior Cloud-Native Full Stack Engineer to design, build, and support secure, scalable applications on Microsoft Azure. This role combines modern full-stack…
Added 16 hours ago
Senior Software Development Engineer (Front End) - Evisort AI
Workday
Vancouver, BC · Canada, BC, Vancouver
Full-time
Evisort Engineering is growing! As a Software Engineer (Front End), you’ll join a collaborative, cross-functional team working to enhance and expand our AI-driven contract management…

Apollo.io

Senior Backend Engineer

Canada

Job type: Full-time
Experience: Minimum 5 years of industry experience in backend development, at least 1-2 years in senior positions, developing large-scale applications
Posting language: English
Posted: Sep 23, 2026

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Original job description

Apollo.io is the leading go-to-market solution for revenue teams, trusted by over 500,000 companies and millions of users globally, from rapidly growing startups to some of the world's largest enterprises. Founded in 2015, the company is one of the fastest growing companies in SaaS, raising approximately $250 million to date and valued at $1.6 billion. Apollo.io provides sales and marketing teams with easy access to verified contact data for over 210 million B2B contacts and 35 million companies worldwide, along with tools to engage and convert these contacts in one unified platform. By helping revenue professionals find the most accurate contact information and automating the outreach process, Apollo.io turns prospects into customers. Apollo raised a series D in 2023 and is backed by top-tier investors, including Sequoia Capital, Bain Capital Ventures, and more, and counts the former President and COO of Hubspot, JD Sherman, among its board members.

YOUR ROLE & MISSION

As a Senior Software Engineer, you will be a critical part of our growing company, working on a cross-functional team to implement best practices in technology, architecture, and process. You’ll have the chance to work in an open and collaborative environment, receive and give hands-on mentorship, and have opportunities to grow and accelerate your career. You love both learning and teaching.

In this role, you will work across two high-impact domains: data platform architecture and integrations with distributed systems building the infrastructure that powers Apollo’s AI-driven internal workflows. On the data side, you’ll organize and make sense of data at scale, working closely with our data engineering team to structure pipelines and enable intelligent product experiences. On the integrations side, you’ll own the connections layer and the distributed architecture that keeps Apollo reliably linked to the broader ecosystem at high throughput.

You enjoy working cross-functionally to solve hard problems and make an impact. At Apollo, you strive for quality and are obsessed with improving automation, squashing bugs, and investigating performance improvements and innovative ideas. You bring an AI-first mindset to everything you do, reaching for AI tools as naturally as any other part of your workflow and helping the team do the same.

Our tech stack: React.js / TypeScript

Python
GoLang
MongoDB
Elasticsearch
Redis
Kafka
Kubernetes / Docker
GCP
Terraform / Ansible
Grafana / Kibana
GitHub Actions

Daily Adventures & Responsibilities

Design and implement highly scalable backend services, data pipelines, and integration endpoints that perform reliably at high volume
Gather product and engineering requirements; write design documents and drive technical discussions to align cross-functional stakeholders
Drive and lead the full software development lifecycle: product requirements, architecture, solution design, development, quality assurance, and maintenance
Build systems with observability as a first-class concern proper monitoring, alerting, and dashboards so issues are caught before customers notice
Communicate development progress clearly to product leads, engineering managers, and other stakeholders
Be comfortable introducing new technologies and new ideas as required, including AI tools that accelerate your workflow and the team’s
Navigate ambiguity and roadblocks proactively when a project hits a wall, you find a path forward and maintain cadence
Work effectively as part of a large global team, attending scrum ceremonies, team events, and manager 1:1s
Provide and respond to technical and behavioral feedback from managers and peers in written and verbal form

COMPETENCIES

Proactively acts without being told what to do; identifies areas for improvement and drives best practices to deliver high-quality, performant, and scalable solutions
Develops services that are highly available and scalable with proper monitoring and alerting in place
Able to up-level the team by sharing knowledge and best practices across the engineering organization
Able to deal with ambiguity and maintain momentum on projects even when hitting obstacles months in
Full ownership of projects from start to finish because deployment is not the finish line
Organized and able to effectively plan and break down large projects into smaller tasks that are easier to estimate and deliver
Listens actively and seeks to understand others’ viewpoints before responding
A creative and innovative problem solver with previous experience working in an agile, startup environment
Confident in owning your role and bringing creative ideas to the hands of users
AI-native working style: habitually leverages AI tools across coding, debugging, review, and documentation, and stays current with emerging capabilities

Qualifications

Minimum 5 years of industry experience in backend development, at least 1-2 years in senior positions, developing large-scale applications
Experience developing distributed web applications at scale
Code that is comprehensible, well-structured, and highly performant
Experience with database modeling (SQL or NoSQL)
Experience using and designing RESTful services
Strong knowledge of computer science fundamentals, including data structures, algorithms, and object-oriented design
Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, and productivity optimization, with a willingness to stay current with emerging AI technologies
Background in fast-scaling startup or high-velocity environments where going beyond your job title was the norm

Must have: Communication Skills, Problem Solving, Proactivity, Team Player, Listening Skills, Creativity and Innovation, Organization and Planning, Dealing with Ambiguity, Ownership of projects from start to finish, Distributed Web Development

Nice to have: BS or MS degree in Computer Science, Computer Engineering or similar, GCP, Kubernetes, Docker, Mongo, Redis, Ruby on Rails, Microservices, Machine Learning

We are AI Native

Apollo.io is an AI-native company built on a culture of continuous improvement. We’re on the front lines of driving productivity for our customers - and we expect the same mindset from our team. If you're energized by finding smarter, faster ways to get things done using AI and automation, you'll thrive here.

Why You’ll Love Working at Apollo

At Apollo, we’re driven by a shared mission: to help our customers unlock their full revenue potential. That’s why we take extreme ownership of our work, move with focus and urgency, and learn voraciously to stay ahead.

We invest deeply in your growth, ensuring you have the resources, support, and autonomy to own your role and make a real impact. Collaboration is at our core - we’re all for one, meaning you’ll have a team across departments ready to help you succeed. We encourage bold ideas and courageous action, giving you the freedom to experiment, take smart risks, and drive big wins.

If you’re looking for a place where your work matters, where you can push boundaries, and where your career can thrive - Apollo is the place for you.

Learn more here!

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More about this job

Responsibilities

Design and deliver scalable backend services, data pipelines, and high-throughput integrations, owning projects across requirements, architecture, development, deployment, and maintenance. Collaborate with product, data, and engineering teams to improve reliability and observability, communicate progress, and use AI tools to accelerate development.

Requirements

Requires at least five years of backend development experience, including one to two years in senior roles, and experience building large-scale distributed web applications. Candidates should have strong computer science fundamentals, database modeling and REST service experience, effective communication and problem-solving skills, and demonstrated use of AI tools in software development.

Skills

Backend Development
Distributed Systems
Scalable Web Applications
Data Pipelines
RESTful Services
Database Modeling
Python
Go
TypeScript
MongoDB
Redis
Kafka
Kubernetes
Google Cloud Platform
AI-Assisted Software Development
Observability

Visa sponsorship

Not detected in the job text

Keywords

Backend Engineering
Distributed Systems
Scalable Applications
Data Platform Architecture
Data Pipelines
Integrations
RESTful Services
Microservices
Database Modeling
SQL
NoSQL
Python
Go
TypeScript
React.js
MongoDB
Elasticsearch
Redis
Kafka
Kubernetes
Docker
Google Cloud Platform
Terraform
Ansible
Grafana
Kibana
GitHub Actions
Observability
Agile
AI-Assisted Development

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