Front-end Developer

Seoul (On-site) • Full time

  • Front-end
  • Node.js
  • Back-end
  • DevOps

monymony is preparing for global expansion to aim higher. We are seeking a valuable colleague to journey further with us. If you want to see and feel firsthand how the service you created is used valuably, and if you're eager to grow with us, please do apply!

Job Description:

  • Develop applications using React and other technologies.
  • Create non-existent React modules or utilize and produce with open source.
  • Try out various automation and test codes to increase efficiency, and make use of Third Party services.

Key Responsibilities:

  • Development of the admin page
  • Development of event pages
  • Developing new features for the service app
  • Performance and bug issue management and improvement
  • Participation in app planning and development of new apps, and all other tasks related to app services.


  • At least 3 years of experience in the related field.
  • A deep understanding of JavaScript.
  • Profound knowledge of Git: commit, merge, remote, push, pull, branch.
  • Comprehensive understanding of CI/CD.
  • Familiarity with React's operation and HOOK.
  • Experience in launching and operating with Next.js.
  • Ability to design, implement, and test given features and requirements independently.
  • Aim for scalable development and are familiar with systematic code management, such as refactoring and version control (Git).
  • Knowledge of, or the ability to learn, the Node.js environment and its libraries.
  • No restrictions on traveling abroad.
  • Basic English skills (reading, writing, and simple conversation).

Preferred Qualifications:

  • Experience with a service with over 1 million users or equivalent.
  • Team leadership experience.
  • Experience in establishing processes for collaboration with other developers.
  • Experience in library development and deployment.
  • Experience in participating in open source projects.

Technologies Used:

  • React, React Native
  • JavaScript, TypeScript
  • Yarn, Jest, Apollo, Redux
  • GitHub Actions, AppCenter, Fastlane

Work Environment and Support:

  • Comfortable Work Environment
  • We focus on immersion and productivity during work hours and adhere to quitting times.
  • Unrestricted free time off! (full-day, half-day, even half-half-day:)
  • Unlimited coffee, beer, cereal, and milk. (Very diverse snacks)
  • Lunch subsidies are provided. (Breakfast on Wednesdays:)
  • We value basic principles, trust, and compliance among all team members.
  • We support tea time with the CEO, CTO, and team managers for smooth communication.

Growth and Life Support:

  • The best industry-standard work equipment is provided (e.g., M1 MacBook).
  • Support for seminars, in-house studies, education, and book purchases to enhance capabilities.
  • Lifetime free access to SumOne Gold (premium service) & pebbles as gifts for acquaintances!
  • Every other Friday, which marks the close of our sprint, allows immediate departure after meetings.
  • Work only in the morning on your birthday. (Celebration party is a bonus)
  • Shortened work hours on the eve of holidays & gifts! (Gifts are delivered to your home; no need to carry them)
  • Up to 300% incentive paid upon achieving company-wide goals.
  • 1:1 relationship counseling with the CEO is possible.

Hiring Process:

  1. Document Screening: Submit your resume (portfolio/link) via email.
  2. Assignment: There will be a task to complete before the interview.
  3. Interview: If you pass the task, you will have an interview.
  4. Final Acceptance
  • Depending on the experience, additional processes such as preliminary interviews or secondary tasks may be required.
  • Contract to regular employment (3-month probation period with 100% salary payment).
  • The probationary period applies universally to all new employees for a basic 3 months, operated in detail according to internal company rules or systems (can be extended up to 6 months).

Location of MonyMony: 3rd Floor, 35 World Cup Buk-ro, Mapo-gu, Seoul

We are looking for team members who will grow with monymony!

Did you find this post even slightly intriguing? Don't hesitate to send your freely formatted resume, career description, portfolio (and links like GitHub) to :) Please include [Position Applying For] in the email subject. Inquiries related to recruitment are always welcome.