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Myticas Consulting

Node.js API Developer , Banking API Modernizatio (35909)

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 4, 2026
Posting language: English
Posted: Oct 5, 2026

Original job description

We are seeking an experienced Node.js API Developer (AWS) to support a major Canadian financial institution’s Digital Core modernization initiative.

The successful candidate will join an API Modernization Pod focused on developing and enhancing secure, scalable B2C APIs. The project includes implementing updated API security protocols, particularly authentication and authorization for key banking services such as Account Summary and Transfers.

This is a hands-on development role involving Node.js, AWS serverless technologies, API integrations and event-driven architectures.

Key Responsibilities

Design, develop and maintain high-performance Node.js applications, APIs and microservices on AWS.
Implement API security enhancements, including authentication and authorization.
Build serverless and event-driven solutions using AWS Lambda, API Gateway, SQS, SNS and DynamoDB.
Design and implement scalable API integrations between services, systems and third-party platforms.
Develop asynchronous messaging solutions using SQS and SNS.
Design and optimize DynamoDB schemas, partitioning and indexing strategies.
Write clean, maintainable and well-tested code, conduct code reviews and troubleshoot technical issues.
Optimize application performance, Lambda execution and AWS resource utilization.
Collaborate with DevOps teams on CI/CD pipelines, infrastructure as code and monitoring.
Create technical documentation and mentor junior developers.

Required Qualifications

5+ years of professional software development experience, including 3+ years of hands-on Node.js development.
1+ year of financial services experience, with an understanding of retail banking and working within a large organization.
Strong production experience with Node.js and Express.js, NestJS or similar frameworks.
Hands-on AWS experience with:

Lambda, including serverless function development and optimization.
API Gateway, including REST/HTTP APIs, authentication, authorization, rate limiting and versioning.
SQS and SNS, including asynchronous messaging, dead-letter queues and publish-subscribe patterns.
DynamoDB, including table design, indexing, query optimization and stream processing.

Strong API design, integration and security experience, including RESTful APIs.
Deep understanding of asynchronous programming, promises, async/await and event-driven development.
Experience with NoSQL database design.
Proficiency with Git, collaborative development workflows, unit testing and integration testing.
Experience using AI-assisted development tools, including GitHub Copilot and Claude Code, to improve development efficiency and build reusable capabilities.
Strong analytical, problem-solving and communication skills.

Preferred Qualifications

AWS Certified Developer Associate or AWS Solutions Architect certification.
TypeScript development experience.
Docker, ECS or Fargate.
Infrastructure as code using CloudFormation, AWS SAM or Terraform.
CloudWatch, X-Ray and application logging.
RabbitMQ or Kafka.
GraphQL API development and optimization.
Agile/Scrum delivery experience.
Experience with multi-region deployments, distributed systems and disaster recovery.
Contributions to Node.js or AWS-related open-source projects.

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More about this job

Responsibilities

Develop and maintain secure, scalable Node.js APIs and microservices on AWS, including serverless and event-driven solutions for banking services. Improve API security and performance, design integrations and DynamoDB data structures, collaborate on CI/CD and monitoring, and document solutions while mentoring junior developers.

Requirements

Requires at least five years of software development experience, including three years of hands-on Node.js development and one year in financial services. Candidates should have production experience with Node.js frameworks and AWS services, strong API security and asynchronous programming skills, testing and Git experience, and familiarity with AI-assisted development tools.

Skills

Node.js
AWS
API Development
API Security
Express.js
NestJS
AWS Lambda
API Gateway
Amazon SQS
Amazon SNS
DynamoDB
RESTful APIs
Event-Driven Architecture
NoSQL Database Design
TypeScript
GitHub Copilot

Visa sponsorship

Not detected in the job text

Keywords

Node.js
AWS
Express.js
NestJS
AWS Lambda
API Gateway
Amazon SQS
Amazon SNS
DynamoDB
REST APIs
Authentication
Authorization
Serverless Computing
Event-Driven Architecture
Asynchronous Messaging
NoSQL
Git
Unit Testing
Integration Testing
GitHub Copilot
Claude Code
TypeScript
Docker
Amazon ECS
AWS Fargate
CloudFormation
AWS SAM
Terraform
Amazon CloudWatch
AWS X-Ray

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