08/18/2026 updated

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Senior Full Stack Software Engineer | Python | TypeScript | React | Laravel

Frenso, USA
Worldwide
Bachelor of Science in Computer Science, Clarkson University, 2016
Frenso, USA
Worldwide
Bachelor of Science in Computer Science, Clarkson University, 2016

Profile attachments

Levie Santos.docx

About me

I have 9+ years of experience architecting and delivering scalable, production-grade web applications across fintech, and platform environments. Specializes in TypeScript across the full stack, building type-safe React applications backed by robust APIs and well-structured relational databases.

JavaScriptPHPAgile TestingCode ReviewDjangoPython (Programming Language)LaravelPostgreSQLMySQLNode.jsRedisResponsive Web DesignSystem DeploymentTypeScriptReact.jsFlaskAWS ECSGitFastAPIKubernetesGraphQLReact NativeReact ReduxRestful ApiTerraformDocker
Full Stack Development with Python and JavaScript Frameworks
Over 9 years of experience building scalable, production-grade web applications using Python, TypeScript, JavaScript, Laravel, Django, Flask, FastAPI, and React across fintech, SaaS, and platform environments.

API Design and Integration
Extensive expertise in designing and implementing RESTful and GraphQL APIs for frontend, mobile, and third-party clients, including authentication, authorization, and role-based access control.

Cloud and DevOps Engineering
Proven background in cloud deployment and DevOps practices using AWS, Docker, Kubernetes, and CI/CD pipelines, supporting high-traffic and high-performance systems.

Relational Database Design and Optimization
Strong skills in designing, optimizing, and managing relational databases including MySQL and PostgreSQL, with experience in complex query optimization and performance tuning.

Caching and Background Job Systems
Implementation of background jobs, queues, and caching mechanisms using Redis to improve application performance and reliability.

PHP and Laravel Development
Solid expertise in PHP and the Laravel framework for building backend services, SaaS platforms, and e-commerce solutions.

Infrastructure as Code with Terraform
Basic knowledge of Terraform for infrastructure provisioning and management in cloud environments.

Agile and Scrum Methodologies
Active participation in Agile and Scrum teams, contributing to iterative releases, code reviews, and system design discussions.

Version Control with Git
Consistent use of Git for source code management, collaboration, and maintaining code quality across development teams.

Experience

Professional experience5 - 10 years
Freelancer since2014

Languages

EnglishFluent

Project history

Senior Full Stack Developer

Ravn
Led development of full-stack applications using React, Python, and Laravel. Built scalable backend services and REST APIs supporting high-traffic systems. Designed and optimized MySQL and PostgreSQL databases. Implemented authentication, authorization, and role-based access control. Collaborated with UI/UX, DevOps, and product teams to deliver end-to-end features. Improved performance, reliability, and maintainability across services.

Senior Full Stack Developer

Simform
Developed SaaS and e-commerce platforms using Python, Laravel, and React. Built and integrated RESTful APIs for frontend and mobile clients. Implemented background jobs, queues, and caching mechanisms. Worked with MySQL databases and optimized complex queries. Participated in system design and code reviews.

Full Stack Developer

Zibtek
Built full-cycle web applications for large-scale SaaS platforms. Developed backend services in Python and PHP. Created responsive UI components using JavaScript frameworks. Integrated third-party services and APIs. Supported deployment and production troubleshooting.

Full Stack Developer

Azumo
Developed full-stack web platforms using Python and modern JavaScript. Implemented API endpoints and backend business logic. Worked with relational databases and cloud environments. Collaborated in Agile teams delivering iterative releases.

Software Developer

Clarion Technologies
Built and maintained web applications for finance and healthcare clients. Developed backend services and frontend interfaces. Integrated APIs, databases, and third-party systems. Participated in debugging, performance tuning, and feature enhancements.

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