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Software Engineer, Full-stack (Tinder Seoul)

Location
Seoul
Department
Engineering
Job Type
Full Time
Focus

Our Mission:

Launched in 2012, Tinder® revolutionized how people meet, growing from 1 match to one billion matches in just two years. This rapid growth demonstrates its ability to fulfill a fundamental human need: real connection. Today, the app has been downloaded over 630 million times, leading to over 97 billion matches, serving approximately 50 million users per month in 190 countries and 45+ languages - a scale unmatched by any other app in the category. In 2024, Tinder won four Effie Awards for its first-ever global brand campaign, “It Starts with a Swipe”™

The Role:

-Legal Entity: Hyperconnect
-Brand: Tinder
-Affiliation: Tinder Recs Seoul Team


The Recs Seoul team is part of Tinder’s global engineering organization responsible for our Recommendation System. We collaborate with multiple teams, including those in the U.S., to drive improvements in recommendation quality and develop new features.

The Recs team conducts over 20 experiments every quarter, making data-driven decisions that impact millions of users. To support this rapid pace of experimentation, our team operates various internal tools and platforms used by engineers, PMs, data scientists, and analysts.

We are not limited to a specific domain but cover the entire recommendation spectrum. We execute diverse projects—ranging from business feature development and system performance improvements to experimentation and infrastructure design—to ensure recommendations work faster and more accurately.

Recommendations are deeply connected to every part of the Tinder service. The Recs Seoul team plays a key role in technically advancing Tinder’s core services, working alongside global engineering teams to improve not only recommendation quality but also the overall user experience.
Role Overview

This position is for a Full-stack Engineer who develops both the backend systems of the Tinder recommendation engine and the frontend tools to operate them.

You will design and implement recommendation logic and APIs that handle massive traffic, while also taking ownership of the web interfaces used to experiment with and control these features. Based on a deep understanding of backend systems, you will be responsible for building systems that allow global team members to intuitively manage complex recommendation logic.

Responsibilities

  • Design and implement high-performance recommendation engines and API services based on Java.
  • Perform improvement tasks to optimize performance, stability, and cost for large-scale distributed systems.
  • Optimize the performance of core systems such as recommendation ranking and queue management, and improve operational efficiency.
  • Build web-based operations platforms that enable global teams to manage complex recommendation parameters and configure A/B tests efficiently.
  • Improve web-based tools to accelerate experimentation speed and operational efficiency.
  • Collaborate with global engineers, PMs, designers, and data scientists to develop user-centric products.



Qualifications

  • 3+ years of software engineering experience with full-stack development, with a solid understanding of backend systems.
  • Experience building web applications using React, TypeScript, JavaScript, etc.
  • Experience with at least one backend language/framework such as Java, Kotlin, or Node.js.
  • Experience in designing and implementing RESTful APIs.
  • Solid understanding of computer science fundamentals, including data structures, algorithms, and operating systems.
  • Constructive and respectful communication skills during code reviews and collaboration.
  • Experience proactively defining and solving problems.
  • Comfortable with English reading and writing, with a willingness to continuously improve English speaking skills for smooth global collaboration.



Preferred Qualifications

  • Those who started their career as a backend engineer but also possess frontend development capabilities.
  • Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent professional experience).
  • Experience in backend development requires large-scale traffic processing.
  • Experience building admin tools or data visualization dashboards that handle complex data.
  • Experience building internal tools, admin panels, or developer platforms.
  • Understanding of infrastructure environments such as AWS, Docker, and Kubernetes.
  • Experience developing experimentation platforms or A/B testing tools.
  • Experience using Elasticsearch or other search/analytics engines.
  • Interest in test automation and code quality improvement.
  • Ability to explain technical designs or code logic in English and participate in real-time discussions.



Recruitment Process

  • Employment Type: Full-time
  • Recruitment Process: Document Screening > Coding Test > 1st Interview > 2nd Interview > Final Acceptance
  • For document screening, only successful applicants will be notified individually.
  • Application Documents: Detailed career-based resume (PDF) in free format

Salary Range:

-

Factors such as scope and responsibilities of the position, candidate's work experience, education/training, job-related skills, internal peer equity, as well as market and business considerations may influence base pay offered. This salary will be subject to a geographic adjustment (according to a specific city and state), if an authorization is granted to work outside of the location listed in this posting.

We don’t just

accept

difference, we

celebrate

it

We strive to build a workplace that reflects the rich diversity of our members around the world, and we value unique perspectives and backgrounds. Even if you don’t meet all the listed qualifications, we invite you to apply and show us how your skills could transfer. Tinder is proud to be an equal opportunity workplace where we welcome people of all sexes, gender identities, races, ethnicities, disabilities, and other lived experiences.

Learn more about inclusion at Tinder
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If you require reasonable accommodation to complete a job application, pre-employment testing, or a job interview or to otherwise participate in the hiring process, please contact employeebenefits@matchgroup.com.

We don’t just

accept

difference, we

celebrate

it

We strive to build a workplace that reflects the rich diversity of our members around the world, and we value unique perspectives and backgrounds. Even if you don’t meet all the listed qualifications, we invite you to apply and show us how your skills could transfer. Tinder is proud to be an equal opportunity workplace where we welcome people of all sexes, gender identities, races, ethnicities, disabilities, and other lived experiences.

Learn more about inclusion at Tinder
Right Arrow

If you require reasonable accommodation to complete a job application, pre-employment testing, or a job interview or to otherwise participate in the hiring process, please speak to your Talent Acquisition Partner directly.

Ready to make sparks fly at Tinder?

Apply for this role

What life is like on the

Engineering

team

"It's a very collaborative environment, people genuinely help each other and the leadership team is always reachable no matter what level they are in."
Vijaya Vangapandu
,
Distinguished Software Engineer

Our hottest benefits for full time employees

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Our

Values

One Team, One Dram Value Image

One Team, One Dream

We work hand-in-hand, building Tinder for our members. We succeed together when we work collaboratively across functions, teams, and time zones, and think outside the box to achieve our company vision and mission.

Own It Value Image

Own It

We take accountability and strive to make a positive impact in all aspects of our business, through ownership, innovation, and a commitment to excellence.

Never Stop Learning Value Image

Never Stop Learning

We cultivate a culture where it’s safe to take risks. We seek out input, share honest feedback, celebrate our wins, and learn from our mistakes in order to continue improving.

Spark Solutions Value Image

Spark Solutions

We’re problem solvers, focusing on how to best move forward when faced with obstacles. We don’t dwell on the past or on the issues at hand, but instead look at how to stay agile and overcome hurdles to achieve our goals.

Embrace Our Differences Value Image

Embrace Our Differences

We are intentional about building a workplace that reflects the rich diversity of our members. By leveraging different perspectives and other ways of thinking, we build better experiences for our members and our team.

Stories from Life at Tinder

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Software Engineer, Full-stack (Tinder Seoul)