---
title: 'Machine Learning Engineer Intern (3-month Internship) at Moloco'
canonical: 'https://feeny.ai/job/machine-learning-engineer-intern-3-month-internship-moloco-seoul-ejv8ga62tfpk'
type: 'job'
last_seen: '2026-10-28'
---

# Machine Learning Engineer Intern (3-month Internship) at Moloco

- **Company:** Moloco
- **Location:** Seoul, South Korea
- **Posted:** 2026-10-26
- **Last confirmed live:** 2026-10-28
- **Apply:** https://job-boards.greenhouse.io/moloco/jobs/8044892003

## Job description

About Moloco:

Moloco is an AI-native performance advertising company, bringing the power of AI advertising to the open internet. Founded in 2013 by machine learning engineers who had built AI advertising systems inside the world's largest technology companies, Moloco began from a shared mission: to build that same engine for the open internet.

Today, Moloco is one company with two businesses, built on the same compound AI system. [Moloco Ads](https://www.moloco.com/moloco-ads) is our AI-native performance advertising platform, helping mobile app marketers acquire, retain, and re-engage high-value users across the open internet. [Moloco Commerce Media](https://www.moloco.com/moloco-commerce-media) is our AI-native retail media platform, enabling retailers and marketplaces to turn their platforms into thriving ad businesses. Both are powered by CARA (Compound Ad Recommendation Architecture), the AI system behind every Moloco product.

At Moloco, we bring together those who've already solved hard problems and those with the drive to. Here, we work on some of the complex problems in AI advertising, at a scale and level of sophistication very few companies can offer. Come build what's next.

The Impact You’ll Be Contributing to Moloco:

- We are seeking exceptional Machine Learning intern to join us in building a state-of-the-art machine learning system. MOLOCO's programmatic advertising engine is powered by custom deep neural network models that handle 1M+ QPS at 7 ms prediction latencies.
- MOLOCO is an engineering company founded by software engineers, and machine learning is the core of MOLOCO's engineering systems. We understand the value of a strong engineering team and strive to hire only the best software engineers as seen here (https://www.linkedin.com/company/moloco/people/). Check out our case study published by Google https://cloud.google.com/customers/moloco/

The Opportunity:

- We are looking for interns who can contribute to ML Modeling: Conduct experiments on state-of-the-art machine learning models for real-world, large-scale problems, including model architecture design, feature engineering, and performance optimization.
- We are looking for interns who can contribute to ML Infra: Enhance the infrastructure that powers large-scale ML experimentation, training, and serving. This includes TPU/GPU-based model training, microservices for ML inference, scalable data pipelines (Spark / Apache Beam), and systems for ML data validation and monitoring.

How Do I Know if the Role is Right For Me?

- Major in Computer Science, Statistics or related fields.
- Strong mathematical skills in probability, statistics, and machine learning.
- Strong algorithms and data structure skills.
- Fluent with at least one programming language including Python, Java, and Golang.
- Fluent in speaking and writing both Korean and English

This is a full-time internship running from January 2027 to April 2027, based in Seoul. We are looking for candidates with two or fewer semesters remaining before graduation as of the internship start date, as well as recent graduates.

Supporting Your Best Work and Your Best Life:

Our benefits are designed to support our people in doing their best work and living well, at work and beyond. Benefits vary by country, employment type, and eligibility. Connect with a recruiter to learn more about benefits in your region.

Moloco Values:

- Lead with Humility: Everyone’s voice is respected, valued, and heard. We win, lose, and learn together. Accountability and feedback are essential to our success.
- Uncapped Growth Mindset: We see all situations as opportunities to learn, grow, and improve as individuals and as an organization. We seek diverse perspectives, encourage curiosity, and promote experimentation to push the boundaries of what’s possible.
- Create Real Value: We pursue the most impactful opportunities with intensity and rigor. We take intelligent risks and make disciplined trade-offs to maintain deep focus. We help our customers win by delivering durable value.
- Go Further Together: We’re one team working towards one vision. We collaborate proactively and inclusively, involving the right people at the right time and in the right way. We strive to create a more equitable workplace. We won’t let each other fail.

Additional Resources:

- [Moloco Company Blog](https://www.moloco.com/blogs)
- [Moloco Leadership](https://www.moloco.com/company/leadership)
- [Moloco Newsroom](https://www.moloco.com/newsroom)

AI Use in Interviews

Our interview process is designed to get to know the real you. Unless a round specifically includes AI as part of what's being assessed, we ask that candidates engage without AI assistance. Please review our [AI Use in Interviews Policy](https://www.moloco.cloud/hubfs/careers/AI%20Use%20in%20Interviews.pdf) before your interview to understand what to expect. Failure to comply with this policy may impact your candidacy.

Candidate Privacy Notice:

Your privacy matters to us. By applying, you acknowledge that you’ve reviewed our [Candidate Privacy Notice](https://www.moloco.cloud/hubfs/careers/Candidate%20Privacy%20Notice.pdf).

## About Moloco

## Company Overview
- **One-liner**: Moloco builds AI-powered performance advertising solutions that enable businesses of all sizes to grow and monetize through operational machine learning.
- **Entity Type**: Private (valued over $2 billion)
- **Headquarters**: Menlo Park, California, USA (Silicon Valley)
- **Founded**: 2013
- **Founders**: Ikkjin Ahn (CEO)

## Core Business
- Primary industry/industries: AI-powered advertising technology (AdTech), Machine Learning, Performance Marketing, Commerce Media, Streaming Monetization
- Target customers: B2B — performance marketers, online marketplaces and retailers, streaming and CTV platforms
- Mission or purpose statement: "Empower businesses of all sizes to grow through operational machine learning." Their vision is to be "the scaling engine for the Internet economy."

## Products & Services
- **Moloco Ads**: A flagship performance advertising platform that helps marketers acquire and re-engage users at scale across the world's largest independent app ecosystem (2+ billion users across 3 million apps). Uses advanced AI optimization for strong ROI and incrementality.
- **Moloco Commerce Media**: An enterprise software solution enabling online marketplaces and retailers to build their own ML-powered advertising business, turning every retail impression into revenue.
- **Moloco Streaming Monetization**: The industry's first AI-powered full-funnel ad stack designed for large streaming and CTV providers, enabling them to offer performance marketing and full-funnel advertising solutions beyond traditional brand advertising.

## Market Standing
- **Valuation/Market Cap**: Valued over $2 billion (backed by Fidelity Management & Research)
- **Key Metric Total Funding**: The company is fully funded and does not need additional capital; it has been profitable for five years, self-funding growth with zero debt. Key metrics include over $200 million in annual revenue (growing more than 5x since 2020) and over $2 billion in annualized ad spend.
- **Notable Investors/Partners**: Investors include Fidelity Management & Research. Customers include Tubi, Wayfair, Chime, Pinterest, Scopely, King, Snapchat, Musinsa, and Olive Young.
- **Growth Signals**: Rapidly scaled from $1 million to $100 million in under five years, now exceeding $200 million in revenue. Less than 1% penetration of total addressable market. Recognized as a Deloitte Fast 500 company, Google Cloud Customer of the Year, one of the Financial Times Fastest Growing Companies, and one of Business Insider’s Top 16 Hottest Ad Tech Companies.

## Competitive Advantages
- **Planet-scale AI**: Founded by machine learning pioneers who built some of the most successful ad systems at Google (including YouTube's monetization engine and Android Data team).
- **Financial strength**: Profitable for five years with zero debt, allowing heavy investment in R&D while maintaining startup agility.
- **Proprietary ML technology**: Uses operational machine learning to solve advertising challenges at scale, with a unique ability to leverage first-party data from apps and platforms.
- **Independence**: Not tied to any major platform or walled garden, enabling them to work across the independent app ecosystem.

## Strategic Focus
- Expanding into streaming and CTV monetization with a first-of-its-kind full-funnel AI ad stack
- Growing the Commerce Media business to enable more retailers and marketplaces to build their own ad businesses
- Continuing to scale the core Ads business with low penetration (less than 1%) of a massive addressable market
- Investing heavily in innovation while maintaining profitability

## Why Work Here
- **Culture**: Emphasizes collaboration, humility, and empowerment. Values include "Lead With Humility," "Go Further Together," "Create Real Value," and "Uncapped Growth Mindset."
- **Remote/Hybrid/Office Policy**: Offers remote offices globally, with physical hubs in Menlo Park (HQ), San Francisco, New York, Seattle, Los Angeles, London, Tel Aviv, Seoul, Tokyo, Beijing, Singapore, and Gurgaon (India).
- **Notable Perks**:
  - 100% health insurance coverage for employees (plus dental, vision, and life insurance for family)
  - Unlimited paid time off (flexible vacation policy)
  - Paid parental leave for primary and secondary caregivers
  - $2,500 annual Learning & Development stipend
  - Daily lunch provided, healthy snacks and beverages
  - Home office setup, phone, internet, and transportation reimbursements
  - Equity and generous retirement benefits
  - Memberships to Calm, Headspace, Spring Health, plus fitness and health reimbursements
- **Engineering Culture**: Work alongside engineers who built some of the world's largest ML systems at Google, Amazon, YouTube, and Meta. High-impact, fast-paced environment with a focus on real customer results.
- **Team**: Over 700 employees globally, with a strong commitment to diversity, inclusion, and belonging.
- **Financial Stability**: Profitable for five years, no debt, fully funded — offering job security rare for a growth-stage startup.

## Sources
1. [moloco.com/careers](https://www.moloco.com/careers)
2. [moloco.com/about](https://www.moloco.com/about)
3. [moloco.com](https://www.moloco.com/)
4. [moloco.com/leadership](https://www.moloco.com/leadership)
5. [linkedin.com/company/moloco](https://www.linkedin.com/company/moloco)

## Other roles at Moloco

- [Senior New Business Manager](https://feeny.ai/job/senior-new-business-manager-moloco-beijing-yfvnp3ktyq6m) — Beijing, China
- [Group Product Manager, IAP Advertising Performance](https://feeny.ai/job/group-product-manager-iap-advertising-performance-moloco-menlo-park-dw2p83ss4ex1) — Menlo Park, CA / New York, NY / Seattle, WA
- [Staff Software Engineer - AI Applications](https://feeny.ai/job/staff-software-engineer-ai-applications-moloco-menlo-park-adzb4h6nmv3f) — Menlo Park, CA / Seattle, WA
- [Global Product Activation Lead (gPAL)](https://feeny.ai/job/global-product-activation-lead-gpal-moloco-menlo-park-01jkh65byc4y) — Menlo Park, CA / New York, NY / San Francisco, CA / Seattle, WA
- [Moloco Ads GTM Strategy Manager](https://feeny.ai/job/moloco-ads-gtm-strategy-manager-moloco-menlo-park-warbfr4xdh5x) — Menlo Park, CA
- [Senior Marketing Insights Analyst](https://feeny.ai/job/senior-marketing-insights-analyst-moloco-menlo-park-e70f5saw62s1) — Menlo Park, CA / San Francisco, CA
- [Head of People Technology](https://feeny.ai/job/head-of-people-technology-moloco-menlo-park-4ypawnz0kf12) — Menlo Park, CA
- [Senior Data Scientist, Growth Analytics](https://feeny.ai/job/senior-data-scientist-growth-analytics-moloco-menlo-park-53mwqn27r11c) — Menlo Park, CA / New York, NY
- [Software Engineer Intern (3 months)](https://feeny.ai/job/software-engineer-intern-3-months-moloco-seoul-51f7mh1w90fd) — Seoul, South Korea
- [Staff Software Engineer (소프트웨어 엔지니어)](https://feeny.ai/job/staff-software-engineer-moloco-seoul-qq4h2335f31y) — Seoul, South Korea