Open to opportunities

Zen Kulwatcharothai

@zenkulwatcharothai

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Senior Ruby on Rails Developer | 8+ Years Exp. | Building Scalable Web Applications

Thailand

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What I'm looking for

Seeking a challenging role that leverages my technical expertise to drive business growth and improve customer satisfaction, with a focus on agile methodologies and collaborative team environments.

As a seasoned Ruby on Rails developer, I bring a proven track record of building and maintaining scalable, efficient web applications. With a strong background in full-stack development, API design, and code optimization, I excel in delivering high-quality solutions that meet project milestones on schedule.

Throughout my career, I have demonstrated strong problem-solving and collaboration skills, working effectively with distributed teams across different time zones. My proficiency in Ruby on Rails, JavaScript, HTML, CSS, and PostgreSQL has enabled me to drive measurable improvements in system responsiveness and user experience.

I am passionate about leveraging technology to drive business growth and improve customer satisfaction. With a strong focus on agile methodologies, I thrive in fast-paced environments and am committed to delivering high-quality solutions that exceed expectations.

Experience

Work history, roles, and key accomplishments

Senior Ruby on Rails Developer

Oivan

Jan 2022 - Jul 2023 (1 year 6 months)

Spearheaded the development and implementation of a critical ERAD microservice for Ejar, utilizing Ruby on Rails to streamline error reporting and analysis, reducing average incident resolution time.

Ruby on Rails

Staff Engineer & Team Lead

Softbaked

Apr 2019 - Jul 2023 (4 years 3 months)

Led a team of 3-4 engineers in enhancing the Page365 e-commerce platform, introducing key features that directly contributed to an increase in quarterly sales.

Ruby on Rails Angular Teams

Senior Ruby on Rails Developer

Appy Sphere

Jun 2018 - Jul 2023 (5 years 1 month)

Partnered with Sansiri to develop a comprehensive juristic office management platform and API, streamlining operations and reducing manual tasks by 20%.

Ruby on Rails Partnering

Ruby on Rails Developer

HelloGold

Mar 2018 - Jul 2023 (5 years 4 months)

Successfully localized the HelloGold service for the Thai market, contributing to a significant increase in new user sign-ups within 3 months.

Ruby on Rails Localization

Full Stack Developer

Tourkrub

Feb 2018 - Jul 2023 (5 years 5 months)

Revamped the user interface (UI) of the Tourkrub platform, resulting in a noticeable increase in user engagement metrics, such as time spent on page and click-through rates.

Ruby on Rails GraphQL UI

Full Stack Developer

Lockstep Labs

Nov 2015 - Jul 2023 (7 years 8 months)

Developed multiple minimum viable products (MVPs) for U.S.-based startups using Ruby on Rails, React with TypeScript, and a test-driven development (TDD) approach.

Ruby on Rails React TypeScript TDD