React-Native Mobile Engineer

Seoul (On-site) • Full time

  • React Native
  • React

monymony is preparing for global expansion, aiming for even loftier goals. We are seeking precious colleagues to journey further together. If you wish to see and feel firsthand the value that your developed services bring, and are eager to move forward and grow with us, we urge you to apply!

Job Description:

  • Develop mobile applications using React Native.
  • Strive for efficiency by exploring various automations, test codes, and utilizing Third Party services.
  • Develop nonexistent React Native modules or create using open source.

Key Responsibilities:

  • Develop new features for existing apps.
  • Manage and improve app performance and bug issues.
  • Participate in app planning, new app development, and all other app-related tasks.


  • Understanding of React's operating mechanism and Hooks.
  • 3+ years of experience in Mobile Application or service development & maintenance using React.
  • Experience in launching products using React Native or iOS, Android.
  • Basic understanding of JavaScript, TypeScript (ES6).
  • Ability to design, implement, and test given functionalities and requirements.
  • Commitment to expandable development, familiar with refactoring, version control (Git), and systematic code management.
  • Knowledge or willingness to learn Node.js environment and libraries.
  • No restrictions on international travel.
  • Basic English proficiency (reading, writing, simple conversation).

Preferred Qualifications:

  • Experience with a service with a DAU (Daily Active Users) of 300,000 or equivalent.
  • Strong interest in developing good U/UX.
  • Experience in automating app testing and deployment.
  • Experience in building collaboration processes with other developers.
  • Experience participating in open-source projects.

Technologies Used:

  • React, React Native
  • JavaScript, TypeScript
  • Yarn, Jest, Apollo, Redux
  • Swift, Kotlin, Objective-C, Java
  • 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.
  3. 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.