Back End Developer

Job Title: Backend Developer

Location: Toronto, ON

Job Type: Full-Time

Work Arrangement: Hybrid (3 days in-office, 2 days remote)

About Us:

Folded Atoms is a fast-growing startup specializing in supply chain automation and optimization through advanced cloud technologies. We build intelligent, scalable backend systems that power real-time logistics operations for enterprise clients. Our infrastructure runs on AWS using modern DevOps practices, microservices architecture, and API-first design principles.

The Role:

We're seeking a talented Backend Developer to design and build robust, scalable server-side applications and APIs. You'll work with Node.js, Express, GraphQL, PostgreSQL, and AWS services to create the backbone of our supply chain automation platform. This role offers hands-on experience with cloud infrastructure, database optimization, and API development.

Core Responsibilities:

·      Design, develop, and maintain server-side applications using Node.js and Express.js

·      Build and optimize RESTful APIs and GraphQL endpoints

·      Develop and manage PostgreSQL databases

·      Integrate with AWS services: ECS/Fargate, RDS, Lambda, API Gateway, Cognito, S3, DynamoDB, SQS, ElastiCache

·      Implement secure authentication and authorization using AWS Cognito, JWT, and role-based access control (RBAC)

·      Monitor and optimize backend performance (query profiling, load testing)

·      Set up and maintain Docker containers for local development and ECS deployments

·      Implement CI/CD pipelines for automated testing and deployment (Bitbucket Pipelines, GitHub Actions)

·      Collaborate with frontend developers to design API contracts and data models

·      Participate in code reviews and establish engineering best practices

·      Debug production issues and implement monitoring/alerting solutions (CloudWatch, Datadog)

Experience:

·      2-5 years of professional backend development experience

·      Proven track record building production-grade Node.js applications

·      Strong experience with PostgreSQL

·      Experience building and maintaining RESTful APIs and/or GraphQL services

·      Familiarity with authentication protocols (OAuth 2.0, JWT, session management)

Technical Skills:

·      Deep understanding of JavaScript/TypeScript and the Node.js runtime

·      Proficiency in Express.js, NextJS, or similar backend frameworks

·      Experience with NoSQL databases (MongoDB, DynamoDB, or DocumentDB)

·      Knowledge of API design principles (REST, GraphQL, versioning, pagination, error handling)

·      Understanding of asynchronous programming (async/await, promises, event loops)

·      Experience with version control systems (Git, GitHub/Bitbucket, branching strategies)

·      Familiarity with Docker and containerized application development

Soft Skills:

·      Excellent problem-solving and debugging skills

·      Strong attention to detail and code quality

·      Effective communication skills for technical discussions and documentation

·      Ability to work independently in a hybrid environment

·      Collaborative mindset for cross-functional teamwork

Education:

·      Bachelor’s degree in computer science from an accredited university

·      International degrees must be evaluated by recognized credential assessment services

Work Authorization:

·      Must be legally authorized to work in Canada

Compensation and Benefits:

·      $70,000 - $110,000 annually based on experience, AWS knowledge, and technical assessment performance.

·      Annual performance reviews with merit-based increases.

·      Potential for salary increase after successful probation period.

·      Comprehensive health, dental, and vision insurance.

·      RRSP matching program to support your long-term financial goals.

·      Flexible work environment with a hybrid schedule.

·      Professional development budget for certifications, courses, and conferences.

·      Opportunity to work with a passionate and innovative team on cutting-edge technologies.

·      Modern office space in downtown Toronto with snacks, coffee, and collaborative workspaces.