Fullstack Developer
Lean Solutions Group6 days ago
Remote, ColombiaSenior
Responsibilities
- Design, code, test, troubleshoot, and maintain scalable backend services primarily using Node.js, TypeScript, JavaScript, and Express.
- Provide junior-level frontend support for React and Tailwind CSS applications.
- Define system architecture and technical designs within AWS, emphasizing scalability, security, and cost effectiveness.
- Design and manage PostgreSQL and MongoDB schemas, migrations, and query optimization.
- Integrate large language models, generative AI APIs, and other AI tools into core products.
- Maintain CI/CD pipelines and infrastructure using infrastructure-as-code principles.
- Manage Docker-based AWS deployments.
- Conduct backend code reviews, establish coding standards, and mentor mid-level and junior developers.
- Collaborate with cross-functional teams to define, design, and ship features.
- Deploy and manage cloud applications using AWS services and contribute to GraphQL API design and querying.
Requirements
- 5+ years of experience designing, developing, and maintaining complex Node.js ecosystems and products.
- Expert-level Node.js and Express.js development experience.
- Strong PostgreSQL and MongoDB expertise, including schema design, migrations, and query optimization.
- Strong understanding of authentication, authorization, data encryption, secure APIs, and scalable architecture.
- 1 to 3 years of practical experience contributing to React-based frontends.
- Working knowledge of JavaScript, TypeScript, React Hooks, Context API, component lifecycles, and Tailwind CSS.
- Bachelor’s degree in Computer Science, Engineering, or a related technical field.
- Experience with AWS deployment and management, including services such as EC2, Lambda, ECS/EKS, S3, RDS, VPC, Route 53, and ALB.
- Experience or familiarity with GraphQL APIs and automated delivery pipelines using AWS CodePipeline, GitLab CI, or Jenkins.
- Highly desired experience integrating large language models and generative AI APIs.
- Experience leading or mentoring other engineers, collaborating across departments, and independently solving complex technical problems.
Benefits
- Remote work arrangement.
- Professional development opportunities with international customers.
- Collaborative work environment.
- Career path and mentorship programs.
- Equal opportunity and diversity-focused workplace.
Tech Stack
AWSDockerExpressGitLab CI/CDGraphQLJavaScriptJenkinsMongoDBNode.jsPostgreSQLReactTailwind CSSTypeScript
Categories
About Lean Solutions Group
Lean Solutions Group provides AI-driven automation, software development, and tech-enabled staffing for logistics, transportation, and other U.S. businesses. Through its Global Technology Services (Lean Tech) arm, it offers team augmentation, RPA/ML solutions, and project delivery for engineering teams. The privately held company is headquartered in Medellín, Colombia, and operates across Latin America and the U.S.