Full Stack Developer - API

Cleo Consulting; Ontario; Hybrid; CAD 80,000 - 120,000; Full time

Job summary

A leading consulting firm is seeking a Senior Full Stack Developer specializing in API development. This role involves translating technical specifications into applications, developing REST APIs, and collaborating throughout the Software Development Life Cycle. The ideal candidate will have extensive experience with React, Typescript, Node.js, and Agile methodologies, working in a hybrid environment.

Qualifications

• Experience with React framework and Typescript.
• Experience building and testing RESTful APIs.
• Experience with Agile methodologies.

Responsibilities

• Translate technical specifications into working applications.
• Design and develop REST API platforms.
• Support applications with system integration and troubleshooting.

Skills

React

Typescript

Node.js

Next.js

RESTful APIs

Agile methodologies

DHTML

AJAX

API security

Swagger

Job description

Assignment : RQ09251 - Software Developer - API - Senior

Job Title : Full Stack Developer - API

Requisition (SS) : RQ09251

Start Date : 2025-06-03

End Date : 2026-03-31

Ministry : Ministry of Public and Business Service Delivery and Procurement

Business Days : 354.00

Hybrid : 3 Days onsite / 2 days remote

Must Have :

• Experience with React framework and Typescript
• Experience with Node.js and Next.js
• Experience building and testing RESTful APIs

Description

Responsibilities

• Translate technical system specifications into working, tested applications, including:
• Developing detailed programming specifications
• Writing and generating code
• Compiling data-driven programs, maintaining, and conducting unit tests
• Designing, developing, coding, and implementing programs in various programming languages for Web and Rich Internet Applications
• Supporting applications with system integration, test planning, scripting, and troubleshooting
• Designing and developing REST API platforms (e.g., using Apigee / APIM)
• Converting web services from SOAP to REST or vice versa
• Resolving and troubleshooting technical problems during software use and operation, including technical assistance in implementation, conversion, and migrations

General Skills

• Experience in programming, analysis, and specialized software support at the specified level
• Ability to collaborate throughout the Software Development Life Cycle
• Experience with structured development methodologies
• Design, coding, testing, debugging, and documenting applications
• Experience with object and third-generation language development tools
• Proficiency in one or more programming languages
• Application design, deployment, troubleshooting, and use of modern design patterns
• Experience with relational and hierarchical databases
• Use of information retrieval packages and query languages
• Knowledge of communication protocols
• Experience eliciting and documenting requirements from stakeholders
• Strong analytical, problem-solving, communication, interpersonal, and negotiation skills
• Team player with a record of meeting deadlines

API Skills

• Experience with Web Technologies (DHTML, AJAX, etc.)
• Experience with security frameworks (e.g., JWT, OAUTH2)
• Experience with API security, analytics, throttling, caching, logging, monetization, request/response modifications using Apigee
• Creating REST API documentation with Swagger, YAML, or similar tools
• Experience with integration frameworks (e.g., Mule, Camel) is desirable
• Knowledge of programming Internet-ready applications
• Experience with rapid application development methodologies
• Understanding of Information Management principles and practices
• Experience with middleware and gateways
• Reviewing, analyzing, and modifying product installation scripts
• Providing post-implementation support and resolving technical issues
• Conducting design walkthroughs with project teams
• Knowledge of Accessibility for Ontarians with Disabilities Act (AODA) standards
• Ability to provide user and system documentation as needed

Experience and Skill Set Requirements

Technical Skills 30%

• Experience with Agile methodologies
• Experience with React and Typescript
• Experience with Node.js and Next.js
• Experience building and testing RESTful APIs
• Knowledge of Jamstack Architecture
• Experience with Progressive Web Apps and responsive design
• Experience with front-end testing, debugging, page load optimization, and version control
• Knowledge of DevOps practices and tools
• Experience with headless content management systems
• Creating front-end functionalities like login, profile, notifications, and self-service sign-up

Experience 30%

• Experience with cloud platforms such as Azure
• Experience with RESTful APIs and structured development methodologies like Agile Scrum
• Experience in designing, coding, testing, debugging, and documenting applications
• Experience with communication protocols and stakeholder requirement gathering
• Experience building integrations with IAA systems such as Azure AD B2C and Okta Authentication

Communication Skills 10%

• Strong documentation skills (solutions, user manuals, reports)
• Effective presentation and communication skills
• Ability to convey design and development concepts clearly and user-friendly