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Harenjaegger User

@harenjaeggeruser

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I build scalable web applications with React, Next.js, TypeScript, and modern APIs.

Nicaragua

Message

What I'm looking for

I'm looking to build scalable SaaS and enterprise applications with modern web technologies, collaborate with distributed cross-functional teams, and keep improving software quality, accessibility, and productivity through continuous learning and AI-assisted development.

I've built and modernized SaaS and enterprise web applications for CloudSpot, Curotec, FullStack Labs, AIM Services, and Discover Real State. Most recently at Tecla for CloudSpot, I modernized the Plans & Billing module and developed subscription and billing workflows integrated with RESTful APIs.

I create end-user interfaces with Vue.js, React, Next.js, TypeScript, Tailwind CSS, and modern frontend architecture. I've also built interfaces for a Lottie animation generator and editor, enabling animation customization and content creation.

Across full-stack projects, I've developed APIs and backend systems with Laravel, PHP, Express.js, and related technologies, while integrating services such as Twilio, PayPal, Firebase, Pusher, Contentful, WordPress, and GraphQL. I improve reliability through testing, accessibility work aligned with WCAG, legacy-component refactoring, and proactive bug resolution.

I work closely with backend engineers, product managers, designers, and distributed teams across North America and Latin America. I also use AI-assisted tools including ChatGPT and GitHub Copilot for development, refactoring, debugging, testing, and documentation while validating generated solutions against engineering and security standards.

Experience

Work history, roles, and key accomplishments

Senior Front-End Web Developer

Tecla

May 2025 - Jun 2026 (1 year 1 month)

Led the modernization of the Plans & Billing module using Vue.js, TypeScript, and Tailwind CSS. Developed subscription management and billing workflows integrated with RESTful APIs, and built end-user interfaces for an AI-powered Lottie animation generator and editor.

Vue.Js TypeScript Tailwind REST APIs Agile Code Review AI assisted Development ChatGpt

Senior Web Developer

Curotec

Sep 2022 - Jan 2025 (2 years 4 months)

Worked as a Full Stack Developer across multiple client projects using React, Next.js, TypeScript, and Laravel. Developed new features, redesigned user interfaces, implemented RESTful APIs, and integrated CMS like headless WordPress and Contentful.

React Next.js TypeScript Laravel REST APIs GraphQL WordPress Contentful Vitest AI assisted Development

Mid-Level Web Developer

FullStack Labs

Feb 2022 - Jun 2022 (4 months)

Developed and maintained client-facing applications using Next.js, React, TypeScript, and GraphQL. Implemented new features and reusable components, modified GraphQL queries, and resolved frontend issues.

Next.js React TypeScript GraphQL Agile

Full Stack Developer

AIM Services

Jan 2019 - Feb 2022 (3 years 1 month)

Led full stack development initiatives using JavaScript, PHP, Laravel, and modern web technologies. Designed and developed RESTful APIs, integrated third-party services including Twilio, PayPal, Firebase, and Pusher, and managed the full lifecycle of feature development.

JavaScript PHP Laravel REST APIs Twilio PayPal Firebase Pusher Authentication Authorization

Junior Web Developer

Discover Real State

Nov 2017 - Jul 2018 (8 months)

Maintained and developed new modules for internal business applications using jQuery and PHP. Supported ongoing application enhancements and bug fixes to improve system functionality and stability.

jQuery PHP