Jobs in Canada

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Global Specifications Transformation Lead
''
Toronto, ON
- Full-time
…experiences - together. With a customer-first mindset, we make doing business with McCain…
Added 1 hour ago
MC
Leave & Accommodation Business Partner
Molson Coors
Toronto, ON
- Other
In the role of Leave & Accommodation Business Partner, working in the Toronto Brewery, you will be part of the Leave, Accommodation & Occupational Health team supporting the Ontario & West…
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Pre-Construction Manager, GES NA, Design and Construction
Amazon
Toronto, ON
This role requires approximately 60% regional travel within North America, with potential travel to all North America locations based on business needs.
Added 1 hour ago
RU
Workday Finance Reporting Sr Associate (Location Flexible)
RSM US LLP
AB · Toronto, ON · Vancouver, BC · Calgary, AB
- Full-time
…review and sign off process with Workday Functional Leads and business subject matter experts (SMEs). This role will work with the Finance Reporting & Analytics management team to…
Added 1 hour ago
VG
Intermediate Accountant - Hybrid
Veralto Global
London, ON
- $65,000 to $75,000 CAD / year
- Full-time
…successful candidate will collaborate with global finance and business teams, investigate accounting discrepancies, maintain auditready documentation, and contribute to continuous…
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Character Artist - EA Sports FC
Electronic Arts
Vancouver, BC
…Pay offered will be determined based on a number of relevant business and candidate factors (e.g. education, qualifications, certifications, experience, skills, geographic location, or…
Added 1 hour ago
PC
Financial Reporting & Tax Compliance, Senior Associate
Pwc Canada
Calgary, AB · Winnipeg, MB
- Full-time
…part of a team of problem solvers, helping to solve complex business issues from strategy to execution. Responsibilities include but are not limited…
Added 1 hour ago
PC
Strategy, Transformation & Risk, Senior Associate
Pwc Canada
Toronto, ON
- Full-time
Performing cyber threat modelling and business impact analyses to ensure cyber assets are adequately protected with proper cybersecurity measures and controls.
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GD
DYNAMITE - Sales Associate PT - Toronto Eaton Centre
Groupe Dynamite, Inc Garage
Toronto, ON
- Part-time
Is available to work a on flexible schedule, including evenings, weekends and holidays, as per business needs
Added 1 hour ago
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Vans: Sales Lead - Crossiron Mills
Vans
AB
- $18 to $24.42 CAD / hour
- Part-time
Capable of working independently, managing shifting priorities, and meeting business expectations.
Added 1 hour ago
IB
Full-Time Faculty, Graduate Program Chair (Business Faculty)
International Business University
Toronto, ON
- Full-time
Join one of Canada's fastest-growing universities as a Graduate Program Chair (Business Faculty), where you will play a key leadership role in the growth of a graduate business program and…
Added 1 hour ago
AE
Engineering Co-op Student
Agnico Eagle Mines Limited
Kirkland Lake, ON
- Full-time
…they express who we are, and they have helped us succeed in business for over 60 years. We value you – your unique set of skills and experience. We value your willingness to build those…
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Senior Specialist Employee Experience-CA
CN
Quebec, QC
- Full-time
…internal and external awards. The incumbent works with HR and business stakeholders to support clear guidance, consistent program execution, and measurable experience…
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Head of Communications, Brand & Digital Marketing
Arup
Toronto, ON
- Full-time
In an increasingly competitive marketplace, our Marketing, Communications, and Business Development (MCBD) team enables Arup to build and protect our reputation, deepen client…
Added 1 hour ago
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Sr. Flutter Engineer
Telna
ON · Ontario, Canada
- Full-time
Proven ability to mentor engineers, lead technical decisions and communicate with product and business stakeholders.
Added 1 hour ago
AI
Pega Technical Lead
Apptoza Inc.
Toronto, ON
- Full-time
Translate business and functional requirements into secure, scalable, reusable, and supportable Pega solutions.
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Port & Logistics Superintendent
Baffinland
Clyde River, NU
- Full-time
…review of performance measures to consistently deliver upon business objectives. Escalates developing issues and concerns to the Departmental Manager for consultation and advice to reach…
Added 1 hour ago
T
Sr. Angular Engineer
Telna
ON · Ontario, Canada
- Full-time
Proven ability to mentor engineers, lead technical decisions and communicate with product and business stakeholders.
Added 1 hour ago
AE
Automation Technician
Agnico Eagle Mines Limited
Kirkland Lake, ON
- Full-time
…they express who we are, and they have helped us succeed in business for over 60 years. We value you – your unique set of skills and experience. We value your willingness to build those…
Added 1 hour ago
T
Sr. Backend Engineer - Node.JS
Telna
ON · Ontario, Canada
- Full-time
Proven ability to mentor engineers, lead technical decisions and communicate with product and business stakeholders, including customers when integration requirements need to be clarified.
Added 1 hour ago
AE
Process Plant Trainer
Agnico Eagle Mines Limited
Cochrane, ON
- Full-time
…they express who we are, and they have helped us succeed in business for over 60 years. We value you – your unique set of skills and experience. We value your willingness to build those…
Added 1 hour ago
NB
Supervisor {NU C-26-062}
North Bay Regional Health Centre (NBRHC)
North Bay, ON
- $48.49 to $60.62 CAD / hour
- Full-time
Bachelor's degree in Accounting, Finance, Business Administration, or a related field is required
Added 1 hour ago
S
Front End - Cashier
Sobeys
Marystown, NL
- Full-time
What began as a meat delivery business in Stellarton, Nova Scotia has grown to over 128,000 teammates at corporate-owned and franchised store locations. Sobeys Capital Incorporated and its…
Added 1 hour ago
S
In Store Bakery - Clerk Department Second Bakery
Sobeys
Marystown, NL
- Full-time
What began as a meat delivery business in Stellarton, Nova Scotia has grown to over 128,000 teammates at corporate-owned and franchised store locations. Sobeys Capital Incorporated and its…
Added 1 hour ago
SH
Acting Store Manager Mayfair Shopping Centre
Sunglass Hut
Victoria, BC
- Full-time
A world leader in the specialty sunglass retail business with over 3,000 stores worldwide, we believe in the freedom of self-expression, inclusivity and authenticity, which is why we bring…

Telna

Sr. Backend Engineer - Node.JS

ON, Canada
Ontario, Canada, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Dec 10, 2026
Posting language: English
Posted: Nov 10, 2026

Original job description

About Telna

Telna is a global connectivity company that provides eSIM, IoT and mobile network technology to travel brands, mobile network operators and enterprises. Our engineering team builds the platforms and services that let millions of people get connected in seconds, wherever they are in the world.

About the Role

You will be a senior technical owner of the backend services behind our eSIM products. These services power consumer travel eSIM apps and white-labeled apps and web experiences for mobile network operators, all built on a shared multi-tenant platform. They cover catalog and pricing, checkout and payments, order and eSIM lifecycle management, customer data, fraud and risk controls, and the data feeds that analytics and finance teams depend on.

This is a hands-on role with significant architectural influence. You will design services that are correct under failure, integrate with many external systems (payment providers, carrier and eSIM platforms, CRM and marketing tools), and shape how we onboard each new operator onto the platform. You will set backend standards for the team, mentor engineers across experience levels, and work directly with product, frontend, mobile, data and QA.

What You'll Do

Design, build and operate backend services and APIs in Node.js and TypeScript for catalog, pricing, checkout, orders, eSIM provisioning and usage management.
Evolve our multi-tenant platform so that each new operator or partner can be onboarded through configuration rather than new code, with per-tenant pricing, branding, feature flags, payment methods and data isolation.
Build and maintain payment integrations for a range of regional providers, including card processors, mobile money and local gateways. Own idempotency, webhook handling, retries, refunds and reconciliation, so that money movement is correct even when providers fail or repeat callbacks.
Integrate with carrier and eSIM provisioning platforms and other third-party systems, wrapping unreliable external APIs in clear contracts with timeouts, circuit breakers, queues and replay.
Own pricing and configuration services, including database-backed pricing rules that product teams can change without a deployment.
Build fraud and abuse prevention capabilities in the backend: risk scoring, velocity and coupon-abuse checks, payment-failure monitoring and review workflows.
Design transaction-level data flows so that payment, CRM, analytics and email platform records share consistent identifiers and reconcile cleanly. Work with data and BI teams on event pipelines, warehouse models and reporting accuracy.
Expose well-documented, versioned APIs to web and mobile clients, and to partner and agent-facing channels such as messaging platforms and AI assistants (for example through MCP-style connectors).
Drive reliability and performance: observability, alerting, load testing, query tuning, caching and capacity planning.
Set the standard for testing: unit, integration and contract tests, and automated checks in CI/CD.
Lead code reviews, write technical design documents, and mentor junior and mid-level engineers.
Evaluate tools, services and patterns, and make pragmatic build-vs-buy decisions.

What You'll Bring

Required

7-8 years of professional backend development, with 6+ years of production Node.js and TypeScript (NestJS, Express, Fastify or similar) on systems with real traffic and real money flowing through them.
Strong command of API design: REST (and GraphQL where relevant), versioning, pagination, authentication and authorization (OAuth2, JWT, API keys), rate limiting and clear error contracts.
Deep experience with relational databases (PostgreSQL or MySQL): schema design, indexing, query tuning, transactions, migrations and safe changes to live tables. Working knowledge of Redis or similar for caching and queues.
Proven experience integrating payment providers, with a solid grasp of idempotency, webhooks, reconciliation, refunds and PCI-conscious design.
Experience building multi-tenant or white-label systems, including configuration-driven behavior and tenant isolation.
Experience designing for failure in distributed systems: asynchronous processing, message queues, retries with backoff, dead-letter handling and exactly-once-in-effect semantics.
Strong testing discipline: unit, integration and contract testing, with tests that run in CI on every change.
Experience with cloud infrastructure (AWS or similar), containers, CI/CD pipelines and infrastructure as code.
Production observability experience: structured logging, metrics, tracing and on-call practice.
Solid grasp of application security: input validation, secrets management, secure handling of personal and payment data.
Proven ability to mentor engineers, lead technical decisions and communicate with product and business stakeholders, including customers when integration requirements need to be clarified.

Strongly Preferred

Experience with eSIM, SIM or telecom systems, such as SM-DP+ and carrier provisioning APIs, or with operator (MNO) integrations.
Experience with fraud, risk or abuse-detection systems, including rules engines and scoring.
Experience with data warehouses and BI tooling (for example Redshift, Trino or Metabase), and with SQL at analytical scale.
Experience reconciling data across payment, CRM, analytics and marketing platforms.
Experience building event-driven systems with Kafka, SQS/SNS or similar.
Experience with Python, Go or Java alongside Node.js.
Experience building APIs for AI assistants or agent-driven commerce, including MCP connectors and messaging channels such as WhatsApp.
Experience with Kubernetes or serverless platforms.
Prior experience in travel, fintech, e-commerce, telecom or connectivity products.

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More about this job

Responsibilities

Design, build, and operate Node.js and TypeScript backend services for eSIM products, including multi-tenant catalog, pricing, checkout, payments, orders, provisioning, and usage management. Lead architecture and reliability practices, integrations, testing, technical reviews, and mentoring while collaborating with product, engineering, data, and QA teams.

Requirements

Requires 7–8 years of backend development, including at least 6 years with production Node.js and TypeScript, plus strong experience with APIs, relational databases, payment integrations, multi-tenant systems, and distributed-system reliability. Candidates should also bring cloud, CI/CD, testing, observability, and security experience, along with the ability to mentor engineers and communicate technical decisions to stakeholders.

Skills

Node.js
TypeScript
Backend Architecture
API Design
PostgreSQL
Payment Integrations
Multi-Tenant Systems
Distributed Systems
Testing
AWS
CI/CD
Observability
Application Security
Fraud Prevention
Mentoring
eSIM Provisioning

Visa sponsorship

Not detected in the job text

Keywords

Node.js
TypeScript
NestJS
Express
Fastify
REST
GraphQL
PostgreSQL
MySQL
Redis
Payment Providers
Webhooks
Idempotency
Multi-Tenant Platforms
eSIM
SM-DP+
Carrier Provisioning
AWS
Docker
CI/CD
Infrastructure as Code
Kafka
SQS/SNS
Kubernetes
Fraud Detection
Event Pipelines
Data Warehouses
OAuth2
JWT
Observability

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Jobs in Canada