Jascha is available for hire
Hire JaschaJascha Brinkmann
Verified Expert in Engineering
Full-stack Developer
Location
Cologne, North Rhine-Westphalia, Germany
Toptal Member Since
November 24, 2021
Jascha is a full-stack developer with over 11 years of experience creating modern websites, single-page applications, progressive web apps, and fully-fledged SaaS MVPs. He mainly works in React and Node.js, but he's flexible as he focuses on his client's needs and can adapt quickly to a wide range of different technologies.
Portfolio
Codeable
JavaScript, Node.js, PHP, WordPress, MySQL, Elasticsearch, React, Redux
Digitalmente Ltd.
JavaScript, React, Elasticsearch, RabbitMQ, MongoDB, Node.js
Self-employed
HTML5, CSS3, JavaScript, PHP
Experience
Availability
Part-time
Preferred Environment
JavaScript, Node.js, PHP, React, Redux, GraphQL, MongoDB, Firebase, Amazon Web Services (AWS), Google Cloud
The most amazing...
...app I've been solely responsible for from planning to execution is developing a full-stack white-label SaaS for a large US solar installer.
Work Experience
Senior Full-stack Developer
2019 - 2021
Codeable
- Developed a SaaS MVP for a large US solar company that included a user-facing progressive web app, an admin portal for employees, and a white-label version for reselling to other solar companies.
- Built a web app for a large US consumer credit company that allowed managing applications, profiles, and orders for both customers and employees.
- Created a drag and drop website and landing page editor focusing on modern web standards, responsive and interactive previews, and performant and scalable server-side generation.
Technologies: JavaScript, Node.js, PHP, WordPress, MySQL, Elasticsearch, React, Redux
CTO
2016 - 2019
Digitalmente Ltd.
- Developed an advanced email marketing automation software that handles millions of data points per month and high data input bursts.
- Implemented a multi-channel tracking system with personalized and smart email marketing funnel capabilities for both transactional and broadcast emails.
- Developed a WYSIWYG email editor, media library, and conditional subscriber workflow UI that includes multiple triggers, conditions, and steps.
Technologies: JavaScript, React, Elasticsearch, RabbitMQ, MongoDB, Node.js
Senior Web Design Consultant
2009 - 2016
Self-employed
- Led the end-to-end implementation of several multi-million dollar product sales pages for various US-based clients.
- Handled project management, wireframes, responsive web design, competitive landscape analysis, front-end and back-end development, performance optimization, and quality assurance.
- Created the corporate identity and MVP for a multi-million German SEO software company.
Technologies: HTML5, CSS3, JavaScript, PHP
Experience
SaaS MVP Development for a Big US Solar Company
Conducted end-to-end implementation from user stories to wireframes, UI, and front-end and back-end development. The project included a progressive web app for customers to check their solar production and consumption, integrating with multiple third-party REST APIs, creating a CRM for managing and analyzing customers and systems at scale, and white-labeling all functionality under a SaaS model for other solar companies.
Advanced Email Marketing Software
Developed the project from scratch as an initial sprint, handling millions of data points per month and high data input bursts. Implemented a multi-channel tracking system with personalized and smart marketing funnel capabilities for both transactional and broadcast emails. Developed a WYSIWYG email editor, media library, and conditional subscriber workflow UI.
Drag-and-drop Block-based Website and Landing Page Editor
Owned the whole project, from the UI to the front-end and back-end development. It also included an interactive media library, integrating with multiple third-party REST APIs, adhering to modern web standards, creating responsive and interactive views, performant and scalable server-side generation, implementing GraphQL API, and secure authentication ensuring both XSS and CSRF safety measures and best practices.
Skills
Languages
JavaScript, PHP, HTML5, CSS3, GraphQL
Frameworks
Redux
Libraries/APIs
Node.js, React, Stripe
Tools
Adobe Photoshop, RabbitMQ, Adobe Illustrator
Platforms
Amazon Web Services (AWS), WordPress, Firebase, Docker
Storage
MySQL, MongoDB, Google Cloud, Elasticsearch
Other
Front-end, Back-end, Full-stack, DOM
Certifications
JUNE 2019 - PRESENT
Top 2% Worldwide Developer
Codeable
Collaboration That Works
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