Back End Engineer

Looking for a Toronto-based consultant with a US bank account.Position Overview
We are seeking a freelance Back-End Engineer to support a lead engineer on a short-term client engagement focused on enhancing an existing website's backend architecture and implementing AI-powered content tagging capabilities.The project involves modifying the existing sitemap structure and developing an automated tagging solution within a headless CMS. The solution will leverage AI to analyze website content and generate recommended tags, helping improve content organization, mapping, and discoverability.This role is ideal for a hands-on backend developer who can work alongside an established lead engineer, assist with day-to-day development tasks, support integrations, and contribute to the implementation and testing of new functionality.Key Responsibilities
Provide hands-on backend development support to the lead engineer.Assist with modifying and extending existing sitemap architecture.Support the development of AI-powered content tagging and automation workflows.Build and integrate REST and GraphQL APIs.Assist with webhook integrations and event-driven workflows.Support prompt engineering and schema design for AI-generated content recommendations.Work within a headless CMS environment to support content management and tagging functionality.Assist with debugging, testing, and validating integrations.Support CI/CD pipelines and deployment processes.Collaborate with frontend engineers on API integrations and technical requirements.Contribute to code reviews and technical documentation.Required Skills & Experience
Strong experience with TypeScript and Node.Js.Experience building and integrating REST and GraphQL APIs.Familiarity with serverless functions and edge functions.AI & Automation
Experience integrating AI capabilities into applications or existing workflows.Understanding of prompt engineering and structured schema design.Python experience is a plus.Integrations & Infrastructure
Experience working with webhooks and event-driven pipelines.Understanding of queues, retries, and idempotency.Familiarity with secrets management and cloud hosting environments.Experience with Vercel is preferred.Understanding of application monitoring, logging, tracing, and alerting.CMS & Development Practices
Experience with headless CMS platforms;
Kontent.Ai experience is a plus.Familiarity with server-side rendering (SSR).Experience with unit, integration, and contract testing.Understanding of CI/CD pipelines and deployment workflows.Knowledge of OWASP and application security fundamentals.Strong documentation and code collaboration skills.Ideal Candidate
Hands-on backend developer with strong TypeScript and Node.Js experience.Has experience integrating AI tools and automation into existing applications.Familiar with headless CMS platforms, content workflows, and API integrations.Comfortable working in a supporting capacity alongside a lead engineer rather than owning the overall architecture.Able to jump into an existing codebase, pick up tasks quickly, and contribute to implementation.Available to start November 16 and commit to the full project duration.
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