Senior Node.js Engineer | Canada remote

T4 Only

Location: Fully Remote (Canada)

Contract Duration: Through the end of the year with solid possibility of extension

Level: Senior

Description

We're looking for a Senior Backend Engineer to design, build, and maintain core data APIs and integrations that power business-critical workflows across the enterprise. You'll work as a senior individual contributor on resilient, standardized, enterprise-grade services that expose data to internal and external consumers at scale.

The team standardizes on TypeScript and cloud-native serverless architectures (AWS Lambda, AWS API Gateway, ApigeeX, AWS CDK) to deliver secure, well-governed, contract-first APIs, and is actively modernizing legacy services into decoupled, cloud-native components.

Key responsibilities:

- Design & Build Cloud APIs: Engineer low-latency, resilient, RESTful APIs and serverless microservices in TypeScript using AWS Lambda and AWS API Gateway.
- Enterprise API Gateway & Routing (ApigeeX): Design, configure, and secure API proxies and routing policies in ApigeeX to handle API governance, security headers, rate limiting, authentication/OAuth2, and enterprise integration boundaries.
- API Design & Standardization: Apply contract-first API design principles using OpenAPI/Swagger specifications and canonical data models to ensure consistent request/response schemas across internal and vendor boundaries.
- Infrastructure as Code (AWS CDK): Write and maintain infrastructure as code in TypeScript using AWS CDK to manage AWS resources (Lambdas, API Gateway, DynamoDB, SQS/SNS, IAM roles).
- Vendor Integrations: Build secure, fault-tolerant integrations with external third-party data providers (e.g., LexisNexis, Verisk, HLDI), implementing rate limiting, circuit breakers, caching, and fallback logic.
- Modernization & Refactoring: Help migrate legacy Java/BPM services into modern,



decoupled TypeScript-based serverless architectures.
- Quality & Observability: Write comprehensive automated unit and API integration tests in Jest and Playwright; instrument APIs with DataDog for real-time monitoring, metrics, and alerting.
- Engineering Best Practices: Contribute to API design reviews, code reviews, and sprint planning; participate in cross-team PR reviews; and help uphold engineering standards and CI/CD best practices across the domain.

Must have skills

- AWS Cloud & Serverless — Intermediate to Senior: Deep hands-on experience with AWS Lambda, AWS API Gateway, IAM, SQS, SNS, and DynamoDB.
- TypeScript (Node.js) — Intermediate to Senior: Proficient in modern TypeScript (ES6+), async/await, strict typing, functional paradigms, and the NPM package ecosystem.
- API Management & ApigeeX: Experience configuring ApigeeX (or equivalent enterprise API gateways) for API proxies, policy configuration, and OAuth2/JWT.
- API Design & REST: Contract-first RESTful API design, OpenAPI 3.0 / Swagger spec creation, RESTful resource modeling, versioning strategies, and status handling.
- AWS API Gateway: Designing REST/HTTP APIs, integration request/response mapping, CORS, authorizers, usage plans, and stage deployment.
- Infrastructure as Code: AWS CDK written in TypeScript (or Terraform/CloudFormation) for automated cloud deployments.
- Testing & CI/CD: Automated unit and API testing using Jest and Playwright/Supertest, integrated into GitHub Actions pipelines.

Nice to have:

- Data Caching: Redis / Amazon ElastiCache or DynamoDB TTL strategies for caching vendor API payloads.
- Observability: DataDog, AWS CloudWatch, or AppDynamics APM setup and dashboard creation.
- Java / Spring Ecosystem: Familiarity with Java/Spring Boot to assist with legacy code analysis during modernization efforts.
- Insurance / FinServ Domain: Knowledge of Third-Party Data prefill, VIN lookup, MVR, CLUE, or credit scoring integrations.

📌 Senior Node.js Engineer (Canada)
🏢 Ardent Softsol
📍 Canada