BackEnd Developer (API Engineering)

HCLTech; Toronto; On-site; CAD 120,000 - 160,000; Full time

Job summary

HCLTech is seeking an experienced API-focused engineer to design and operate production REST APIs using Node.js and TypeScript in a primarily AWS serverless environment. You will contribute to secure, scalable, and observable API services with strong emphasis on OpenAPI contracts and robust testing.

The role favors a product-minded professional who understands business impact and customer experience, while applying best practices for security and reliability in regulated contexts.

Qualifications

• 5+ years building and operating production REST APIs in Node.js & TypeScript.
• Hands-on AWS serverless experience — Lambda, API Gateway, DynamoDB, S3, CloudWatch, IAM, SNS, SQS, Glue, ECS.
• Strong REST API design skills — resource modeling, HTTP semantics, versioning, idempotency, and OpenAPI/Swagger contract authoring
• Daily proficiency with AI-assisted coding tools — GitHub Copilot, Claude, Cursor, or similar — using them to accelerate development while owning every line committed
• Solid testing discipline — writes tests as part of development using Mocha/Chai/Sinon or Jest, targets 80%+ coverage across branches, functions, and lines
• Product mindset — understands the business impact of the APIs they build, thinks about consumer experience, reliability, and value delivery — not just technical correctness
• Familiar with security patterns in regulated environments — encrypted secrets, least-privilege IAM, input validation, private networking
• Experience with AWS CDK or CloudFormation for infrastructure-as-code is a strong plus
• Financial services domain background is a plus

Skills

REST API design

AWS serverless

OpenAPI/Swagger

Product mindset

Security patterns

Tools

GitHub Copilot

Claude

Cursor

AWS CDK

CloudFormation

Mocha/Chai/Sinon

Jest

Job description

• 5+ years building and operating production REST APIs in Node.js & TypeScript
• Hands-on AWS serverless experience — Lambda, API Gateway, DynamoDB, S3, CloudWatch, IAM, SNS, SQS, Glue, ECS — built and run in production, not just in tutorials
• Strong REST API design skills — resource modeling, HTTP semantics, versioning, idempotency, and OpenAPI/Swagger contract authoring
• Daily proficiency with AI-assisted coding tools — GitHub Copilot, Claude, Cursor, or similar — using them to accelerate development while owning every line committed
• Solid testing discipline — writes tests as part of development using Mocha/Chai/Sinon or Jest, targets 80%+ coverage across branches, functions, and lines
• Product mindset — understands the business impact of the APIs they build, thinks about consumer experience, reliability, and value delivery — not just technical correctness
• Familiar with security patterns in regulated environments — encrypted secrets, least-privilege IAM, input validation, private networking
• Experience with AWS CDK or CloudFormation for infrastructure-as-code is a strong plus
• Financial services domain background is a plus