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We are looking for a Full Stack Software Engineer with 3+ years of professional experience to join our engineering team. This role will focus on building and improving our internal annotation and project management platform used for AI training data, localization workflows, financial operations, and customer‑specific annotation projects.

The adecuado candidate is strong in React, Type Script, and backend API development, comfortable working in a large codebase, and excited to work in a fast‑moving, highly collaborative engineering team.

What We’re Looking For

We are looking for someone who can contribute quickly, communicate clearly, and help us build reliable, scalable tools for complex annotation and operational workflows. This person should be comfortable balancing speed with quality and should enjoy working closely with a motivated, high‑energy team.

Key Responsibilities

- Build and maintain frontend features using React, Type Script, Material UI, Redux Toolkit, and Vite
- Develop and enhance backend APIs using Node.js, NestJS, Type Script, TypeORM, and MySQL
- Work on platform features across annotation workflows, user management, project operations, finance, reporting, and integrations
- Collaborate with product, operations, and engineering teams to translate business needs into scalable software
- Write clean, maintainable, tested code using unit, integration, and E2E testing practices
- Participate in code reviews, sprint planning, architecture discussions, and production support
- Improve performance, reliability, observability, and user experience across the platform

Required Skills

- 3+ years of professional software engineering experience
- Frontend experience with React, hooks, component‑based architecture, Material UI, Redux Toolkit, React Router, Formik/Yup, Axios




- Backend experience with Node.js, NestJS, REST APIs, TypeORM, MySQL, validation, authentication, and API documentation
- Experience with testing tools such as Jest, React Testing Library, Cypress, Supertest, or Testcontainers
- Familiarity with Git‑based workflows, code reviews, and Agile/Scrum development
- Comfortable working with large, modular applications and complex business logic

Nice to Have

- Experience with AWS services such as S3, SQS, SNS, Lambda, Cognito, RDS, ECR, or EKS
- Familiarity with Docker, Kubernetes, Helm, CI/CD pipelines, Sonar Qube, and Datadog
- Experience with Recharts, SurveyJS, or rich data‑heavy UIs
- Exposure to LLM/AI integrations such as OpenAI, Google GenAI, AWS Bedrock, or Lang Chain
- Experience with localization, data annotation, workflow systems, vendor management, invoicing, or financial platforms
- Python experience for scripting, automation, or data processing

Soft Skills

- Strong written and verbal communication
- Ability to work independently and take ownership of features
- Collaborative mindset with openness to feedback and code reviews
- Strong problem‑solving skills in complex, fast‑changing product areas
- Attention to detail around data quality, security, performance, and UX
- Ability to learn quickly and adapt to new tools, integrations, and customer requirements
- Comfortable working in a dynamic, highly energetic team environment

Technical Overview

- Frontend: React, Type Script, Material UI, Redux Toolkit, Vite, Axios, Cypress
- Backend: Node.js, NestJS, Type Script, TypeORM, MySQL, Swagger/OpenAPI, Jest, Supertest
- Infrastructure: Docker, Kubernetes/EKS, Helm, AWS, CI/CD
- Observability & Quality: Datadog, ESLint, Prettier
- Integrations: OpenAI, Google GenAI, AWS Bedrock, Send Grid, Google APIs, Quick Books, XTRF

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Postúlate en Kit Empleo: kitempleo.com.co/empleo/1aqr2u

📌 Full Stack Software Engineer (Colombia)
🏢 e2f
📍 Colombia