About the job
Join Our Innovative Team!
- Toss is a dynamic company comprised of various domains, each operating independently yet collaboratively. Our structure includes six domains: Ads & Benefits, Commerce, Pay, Financial Marketplace, Foundation, and Growth.
- The Ads & Benefits domain began its advertising journey in September 2022, launching a diverse range of advertising products including video ads, banners, live shopping promotions, luck quizzes, and push notifications for money alerts.
- Within the domain, teams such as Benefit Silo, Ads Platform Team, Ads Performance Team, and Monetization Silo work seamlessly as one.
- Having experienced explosive growth since the second half of 2022, we are now focused on refining our targeting capabilities to ultimately establish the premier advertising platform.
Your Role:
- Design and develop the Product server utilized by numerous Toss customers.
- Leverage your knowledge of the advertising domain to create products centered around Ad Serving & Delivery, User Targeting, and ML Logic-based Bidding & Auction systems.
- Utilize cutting-edge technologies to ensure service reliability while actively listening to user feedback and promptly addressing issues.
What You Should Know:
- This position is ideal for individuals with a background or interest in advertising.
- While similar to the Server Developer (Product) role in service development, this position specifically focuses on the Ads & Benefits domain.
- For those interested in flexible placement prior to joining, please consider applying for the [Server Developer (Product)](https://toss.im/career/job-detail?job_id=4071141003) position.
- Please note that the Toss community is not currently hiring for military service personnel (Industrial Technical Personnel, Professional Research Personnel). Transfers or new hires are not possible.
Desired Qualifications:
- Experience in designing and operating high-availability, scalable systems.
- Background in developing systems that handle large-scale, real-time traffic.
- Experience dealing with system failures and resolving issues.
- A strong commitment to ownership and pride in your work, treating the service as “your own”.
- Willingness to share insights and ideas gained from service development and an eagerness for continuous technical challenges.
- Experience in the advertising sector is a plus.
Technologies We Use:
- Kotlin, Spring
- MySQL, MongoDB, Hadoop, Redis, Kafka, Elasticsearch
Our Hiring Process:
- Application Submission > Technical Interview > Cultural Fit Interview > Reference Check > Offer Discussion > Final Selection and Onboarding
A Message to Future Colleagues:
“We are looking for individuals eager to grow the Ads & Benefits domain together!”
- Having started from scratch, Toss's advertising business is now prepared for significant growth, creating a platform for advertisers and offering a variety of user-friendly advertising products.

