J
John Martinez
About
Detail
San Salvador, San Salvador Department, El Salvador
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work
Full-time jobs
Starting at
USD1.5k/month
Résumé
Jobs
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Fullstack DeveloperTata Consultancy ServicesFeb 2024 - Current (2 years 7 months)• Integrated OpenAI API (Chat Completions, Assistants) to add AI-powered features to a client product, reducing manual content review steps for the team. • Built and maintained RESTful APIs and a GraphQL endpoint using Node.js; worked with frontend React components consuming those endpoints. • Created reusable React components with TypeScript, Hooks, and Context API across multiple projects. • Set up JWT authentication with Clerk and role-based access control (RBAC) for user management. • Maintained CI/CD pipelines via GitHub Actions; wrote unit and integration tests with Jest and React Testing Library. • Worked in Agile Scrum with US-based cross-functional teams - sprint planning, standups, retrospectives.- Frontend DeveloperTata Consultancy ServicesJan 2022 - Feb 2024 (2 years 2 months)• Built responsive UIs using React and Next.js across 5 client projects; used SSR and SSG to improve page load performance. • Worked with PostgreSQL and MySQL databases; wrote queries and handled schema migrations using Prisma ORM and TypeORM. • Applied TypeScript strict mode across projects to catch type errors early and improve code consistency. • Used Linux/Ubuntu environments and bash scripting for build tasks; followed GitFlow branching and participated in code reviews.
- Senior Collections SpecialistAireSpringNov 2017 - Feb 2022 (4 years 4 months)• Built internal tools for data extraction and reporting across ERP/CRM platforms including NetSuite, HubSpot, and Salesforce. • Automated financial reporting workflows by integrating ERP systems, reducing manual work for the accounting team.
Education
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- B.Sc. Computer Systems EngineeringUniversidad Tecnologica de El SalvadorJan 2020 - Jan 2025 (5 years 1 month)