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I am a solutions-oriented software engineer with 9+ years of experience delivering scalable SaaS applications and API-driven systems using Python and Node.js. I excel at translating business requirements into robust technical solutions, troubleshooting complex issues, and delivering end-to-end, high-performance systems. I have a strong background in system integrations, multi-service architectures, and collaborating with product, design, and operations teams to ensure reliable software. In my recent roles, I’ve led technical implementations, built high-throughput REST APIs (10,000+ requests per minute), and improved frontend performance through SSR, code splitting, and Next.js. I’ve guided cross-functional teams, introduced automated testing and CI/CD pipelines, and leveraged AI-assisted development workflows to accelerate delivery while preserving quality and architectural integrity. I enjoy owning features from design through deployment and monitoring, and I’m always looking for ways to improve performance, reliability, and developer experience.…I am a solutions-oriented software engineer with 9+ years of experience delivering scalable SaaS applications and API-driven systems using Python and Node.js. I excel at translating business requirements into robust technical solutions, troubleshooting complex issues, and delivering end-to-end, high-performance systems. I have a strong background in system integrations, multi-service architectures, and collaborating with product, design, and operations teams to ensure reliable software. In my recent roles, I’ve led technical implementations, built high-throughput REST APIs (10,000+ requests per minute), and improved frontend performance through SSR, code splitting, and Next.js. I’ve guided cross-functional teams, introduced automated testing and CI/CD pipelines, and leveraged AI-assisted development workflows to accelerate delivery while preserving quality and architectural integrity. I enjoy owning features from design through deployment and monitoring, and I’m always looking for ways to improve performance, reliability, and developer experience.

Jefferson David

Full Stack Developer, Web Developer, Back-End Developer, +2

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I am a solutions-oriented software engineer with 9+ years of experience delivering scalable SaaS applications and API-driven systems using Python and Node.js. I excel at translating business requirements into robust technical solutions, troubleshooting complex issues, and delivering end-to-end, high-performance systems. I have a strong background in system integrations, multi-service architectures, and collaborating with product, design, and operations teams to ensure reliable software. In my recent roles, I’ve led technical implementations, built high-throughput REST APIs (10,000+ requests per minute), and improved frontend performance through SSR, code splitting, and Next.js. I’ve guided cross-functional teams, introduced automated testing and CI/CD pipelines, and leveraged AI-assisted development workflows to accelerate delivery while preserving quality and architectural integrity. I enjoy owning features from design through deployment and monitoring, and I’m always looking for ways to improve performance, reliability, and developer experience.…I am a solutions-oriented software engineer with 9+ years of experience delivering scalable SaaS applications and API-driven systems using Python and Node.js. I excel at translating business requirements into robust technical solutions, troubleshooting complex issues, and delivering end-to-end, high-performance systems. I have a strong background in system integrations, multi-service architectures, and collaborating with product, design, and operations teams to ensure reliable software. In my recent roles, I’ve led technical implementations, built high-throughput REST APIs (10,000+ requests per minute), and improved frontend performance through SSR, code splitting, and Next.js. I’ve guided cross-functional teams, introduced automated testing and CI/CD pipelines, and leveraged AI-assisted development workflows to accelerate delivery while preserving quality and architectural integrity. I enjoy owning features from design through deployment and monitoring, and I’m always looking for ways to improve performance, reliability, and developer experience.

Available to hire

I am a solutions-oriented software engineer with 9+ years of experience delivering scalable SaaS applications and API-driven systems using Python and Node.js. I excel at translating business requirements into robust technical solutions, troubleshooting complex issues, and delivering end-to-end, high-performance systems. I have a strong background in system integrations, multi-service architectures, and collaborating with product, design, and operations teams to ensure reliable software.

In my recent roles, I’ve led technical implementations, built high-throughput REST APIs (10,000+ requests per minute), and improved frontend performance through SSR, code splitting, and Next.js. I’ve guided cross-functional teams, introduced automated testing and CI/CD pipelines, and leveraged AI-assisted development workflows to accelerate delivery while preserving quality and architectural integrity. I enjoy owning features from design through deployment and monitoring, and I’m always looking for ways to improve performance, reliability, and developer experience.

Skills

Experience Level

Expert

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Intermediate

Language

English

Fluent

Work Experience

Technical Lead Developer at 247 Technology Inc

October 1, 2024 - April 1, 2026

Led technical implementation of API-driven systems, designing and deploying high-throughput REST APIs capable of 10,000+ requests/min. Collaborated with cross-functional stakeholders to translate business requirements into scalable backend solutions. Integrated multiple systems and services using Python (Django) and Node.js, enabling seamless data flow across applications. Built frontend workflows with Next.js and React and integrated Ext JS (Sencha) for enterprise interoperability. Owned features end-to-end from design to deployment and monitoring, ensuring reliability and maintainability. Introduced automated testing (PyTest, Jest, Cypress), reducing post-release defects by 25%. Monitored production systems with Datadog and Sentry, improving incident detection and resolution efficiency. Increased delivery predictability (90%+ sprint accuracy) by breaking down complex features into clear milestones. Built Dockerized applications with CI/CD pipelines (GitHub, Jenkins) and established A

Full Stack Developer at Octomedia

August 1, 2021 - July 1, 2024

Developed responsive web applications using React.js, Material UI, Bootstrap, and Tailwind CSS, delivering scalable SPAs with strong UX. Built RESTful APIs and backend services using Python (Django, Tornado) for customer-facing and internal applications, with token-based authentication and authorization to enhance security. Created Python automation tools for data processing and workflow optimization. Used Beautiful Soup for web scraping and data extraction. Integrated applications with AWS (EC2, S3, IAM) and various third-party systems. Migrated and optimized databases across SQLite, MySQL, and PostgreSQL, improving data integrity and performance. Built internal dashboards and management tools to improve operational visibility. Implemented Git/GitHub version control and automated testing practices to ensure code quality and reliable deployments.

Web & Mobile Developer at PCS Wireless

September 1, 2018 - July 1, 2021

Developed UI components using React and JavaScript, focusing on maintainability and usability. Built dashboards and internal tools integrated with backend APIs. Supported migration to modern REST-based architecture. Improved performance for data-heavy interfaces, reducing load time by 20%. Fixed bugs and improved system stability. Collaborated with senior developers to follow best practices and improve code quality.