Jobs in Canada

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Added 52 mins ago
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Product Manager MDS, Hypodermics and Anesthesia
BD
Mississauga, ON · CAN Mississauga - Derry Road West
- $85,000 to $135,000 CAD / year
- Full-time
The Product Manager MDS, Hypodermics and Anesthesia will lead the national marketing plan for the assigned MDS portfolio. The role will report to the Marketing Director for MDS, and, in…
Added 52 mins ago
B
Executive Assistant, Team Lead
BD
Mississauga, ON · CAN Mississauga - Derry Road West
- $60,000 to $110,000 CAD / year
- Full-time
…Canadian Leadership Team members while serving as the Team Lead for the Executive Assistant (EA) function in…
Added 52 mins ago
BP
Server
Boston Pizza
Abbotsford, BC
- $18.25 CAD / hour
- Part-time
Servers lead the Guest Experience at the table and ensure our Guests have everything they need from appitizers to desserts. Masters of situational service, they tailor their style to meet…
Added 52 mins ago
VC
Nurse Practitioner, Groundspring Mental Health and Substance Use (MHSU)
Vancouver Coastal Health
Vancouver, BC
- $76.34 to $83.98 CAD / hour
- Part-time
Ability to apply lead leadership skills within a program and team setting.
Added 52 mins ago
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Mental Health and Substance Use Nurse - Registered Nurse (RN) / Registered Psychiatric Nurse (RPN)
Vancouver Coastal Health
Vancouver, BC
- $41.42 to $55.91 CAD / hour
- Full-time
Added 52 mins ago
VC
Registered Nurse (RN) - BMT Case Navigator
Vancouver Coastal Health
Vancouver, BC
- $41.42 to $55.91 CAD / hour
- Full-time
…taking smart risks, and "going first" when we believe it will lead to the best possible outcomes for patients and their families. We invite you to join us in creating healthy lives in…
Added 52 mins ago
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Global Specifications Transformation Lead
''
Toronto, ON
- Full-time
Position Title: Global Specifications Transformation Lead
Added 52 mins ago
MC
Leave & Accommodation Business Partner
Molson Coors
Toronto, ON
- Other
Lead the accommodation process by reviewing requests, facilitating interactive discussions, evaluating medical documentation, and partnering with stakeholders to identify reasonable…
Added 52 mins ago
Pre-Construction Manager, GES NA, Design and Construction
Amazon
Toronto, ON
…site permits. You are responsible as the project manager to lead planning, design, and preconstruction projects - including new built-to-suit industrial buildings, tenant improvements,…
Added 52 mins ago
FC
Project Coordinator
Flatiron Construction Corp
Edmonton, AB
- Other
Are you ready to lead with precision and tackle complex challenges? As an experienced Field Engineer, you will leverage your technical knowledge to oversee critical aspects of our projects,…
Added 52 mins ago
V
Vans: Sales Lead - Crossiron Mills
Vans
AB
- $18 to $24.42 CAD / hour
- Part-time
A day in the life of a Sales Lead at Vans looks a little like this.
Added 53 mins ago
SH
Licensed Practical Nurse
Southern Health-Santé Sud
Winkler, MB
- Full-time
Demonstrated ability to lead and make decisions autonomously.
Added 53 mins ago
IB
Full-Time Faculty, Graduate Program Chair (Business Faculty)
International Business University
Toronto, ON
- Full-time
Lead curriculum development, review, and continuous improvement initiatives to maintain academic excellence and market relevance.
Added 53 mins ago
C
Senior Specialist Employee Experience-CA
CN
Quebec, QC
- Full-time
Added 53 mins ago
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Head of Communications, Brand & Digital Marketing
Arup
Toronto, ON
- Full-time
Added 53 mins ago
T
Sr. Flutter Engineer
Telna
ON · Ontario, Canada
- Full-time
Lead code reviews, write technical design documents, raise the bar on testing practices, and mentor junior and mid-level engineers.
Added 53 mins ago
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Assistant Supervisor Engineering Flagging-CA
CN
Quebec, QC
- Full-time
Added 53 mins ago
AI
Pega Technical Lead
Apptoza Inc.
Toronto, ON
- Full-time
Pega Certified Lead System Architect (CLSA) on Pega 8.x or above.
Added 53 mins ago
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Port & Logistics Superintendent
Baffinland
Clyde River, NU
- Full-time
Demonstrate, lead and develop a safety program that is measureable and engages the department to the highest standard of safety ownership. Investigate all injuries in the department and…
Added 53 mins ago
NB
Security Guard {NU C-26-061}
North Bay Regional Health Centre (NBRHC)
North Bay, ON
- $31.18 to $38.97 CAD / hour
- Full-time
…through collaboration with team members, the Protective Services Lead’s, Facilities Supervisor - Protective Services, internal and/or external…
Added 53 mins ago
C
Assistant Supervisor Track Maintenance-CA
CN
Grande Cache, AB
- Full-time
Lead engineering operations as outlined in CN's operating plan
Added 53 mins ago
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Sr. Angular Engineer
Telna
ON · Ontario, Canada
- Full-time
Lead code reviews, write technical design documents, and mentor junior and mid-level engineers.
Added 53 mins ago
NB
Security Guard {NU C-26-049}
North Bay Regional Health Centre (NBRHC)
North Bay, ON
- $31.18 to $38.97 CAD / hour
- Full-time
…through collaboration with team members, the Protective Services Lead’s, Facilities Supervisor - Protective Services, internal and/or external…
Added 53 mins ago
T
Sr. Backend Engineer - Node.JS
Telna
ON · Ontario, Canada
- Full-time
Lead code reviews, write technical design documents, and mentor junior and mid-level engineers.
Added 53 mins ago
NB
*NEW* Protective Services Guard {NU C-26-063}
North Bay Regional Health Centre (NBRHC)
North Bay, ON
- $31.18 to $38.97 CAD / hour
- Full-time
…through collaboration with team members, the Protective Services Lead’s, Facilities Supervisor - Protective Services, internal and/or external…

Telna

Sr. Backend Engineer - Node.JS

ON, Canada
Ontario, Canada, Canada

Full-time

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Applications open in a new tab.

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

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Sr. Backend Engineer - Node.JS

NEW Protective Services Guard {NU C-26-063}

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Work requirements

Jobs in Canada