Senior Full Stack Developer, Node, React

This is a fully remote position, open to applicants in Colombia.

📋 Description

• Design and implement full-stack applications from scratch utilizing React and Node.js.

• Create scalable application logic and cloud infrastructure for digital products and autonomous workflows.

• Develop systems that allow autonomous agents to interact, make decisions, and perform tasks.

• Build and maintain REST and GraphQL APIs.

• Develop and integrate MCP-compatible REST and GraphQL APIs.

• Connect third-party SaaS platforms and external services, including Microsoft Graph and social media APIs.

• Enhance website and application performance.

• Create accessible interfaces that adhere to WCAG 2.1 AA standards.

• Implement authentication, authorization, API key management, and access auditing throughout the development process.

• Execute functional and end-to-end automated tests using Jest and Cypress.

• Establish service-level objectives and apply production observability practices, including logs, metrics, and distributed traces.

• Engage in technical research, solution design, and address complex engineering challenges.

• Collaborate with developers, QA specialists, architects, and stakeholders throughout the development lifecycle.

• Produce and maintain API documentation, interface contracts, and versioning standards.

⛳️ Requirements

• Minimum of five years of professional experience with modern development frameworks and languages.

• Proficient hands-on experience with React and Node.js.

• Capability to develop full-stack applications from the ground up and deploy the necessary infrastructure.

• Experience with AWS and Docker.

• Familiarity with AWS services such as ECS Fargate, Aurora, OpenSearch, S3, EventBridge, SQS, Cognito, and Bedrock.

• Experience integrating third-party SaaS tools and external APIs.

• Proven track record of developing accessible interfaces that meet WCAG 2.1 AA standards.

• Knowledge of OAuth 2.0, OpenID Connect, API key management, and access audit trail patterns.

• Exposure to RBAC and ABAC access control models.

• Experience delivering applications with functional and automated tests using Jest and Cypress.

• Background in developing server-side rendered applications using Next.js or Nuxt.js.

• Familiarity with GraphQL and Apollo.

• Experience building or integrating MCP-compatible REST or GraphQL APIs.

• Understanding of API interface contracts, versioning, and consumer documentation.

• Knowledge of service-level objectives and production observability practices.

• Experience building or using agentic workflows.

• Proficient English communication skills.

• Ability to work effectively in an international team setting.

• Hands-on experience implementing structured LLM outputs through function or tool calling.

• Familiarity with LLM evaluation methods, including golden test sets, LLM-as-judge pipelines, and prompt regression testing.

• Ability to define quantifiable metrics for assessing AI output quality.

• Previous experience with AWS Bedrock or similar generative AI platforms.

• Experience integrating CreatorIQ, Frame.io, Microsoft 365 Graph, or social media APIs.

• Strong ownership, initiative, problem-solving abilities, and a collaborative, ego-free working style.

🏝️ Benefits

• Competitive salary in USD.

• Access to learning platforms and opportunities for professional development.

• Flexible work environment.

• Collaborative and multicultural teams.

• Supportive, flexible, and people-oriented workplace.

• Continuous learning and open collaboration.