Junseong Kim
AeroLeads people directory · profile

Junseong Kim Email & Phone Number

Co-Founder, CEO at BitterSweet
Location: Seoul, Korea, Republic of 6 work roles 2 schools
1 work email found @bittersweet.ai LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 86%

Contact Signals · 1 work email

Work email j****@bittersweet.ai
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Co-Founder, CEO
Location
Seoul, Korea, Republic of
Company size

Who is Junseong Kim? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Junseong Kim is listed as Co-Founder, CEO at BitterSweet, a with 2 employees, based in Seoul, Korea, Republic of. AeroLeads shows a work email signal at bittersweet.ai and a matched LinkedIn profile for Junseong Kim.

Junseong Kim previously worked as CEO Staff / Strategy Manager at 스캐터랩 (Scatter Lab) and Machine Learning Engineer at 스캐터랩 (Scatterlab). Junseong Kim holds Bachelor'S Degree, Computer Science from Kookmin University.

Company email context

Email format at BitterSweet

This section adds company-level context without repeating Junseong Kim's masked contact details.

{first}@bittersweet.ai
89% confidence

AeroLeads found 1 current-domain work email signal for Junseong Kim. Compare company email patterns before reaching out.

Profile bio

About Junseong Kim

Building exponential growth strategy at ScatterLab ⚡️Do everything for a successful startup - Growth Strategy, Marketing, Business Modeling, IR, PR, HR, etc.Ex. ML Engineer & Scientist for 6 years (from 2017 to 2023)

Current workplace

Junseong Kim's current company

Company context helps verify the profile and gives searchers a useful next step.

BitterSweet
Bittersweet
Co-Founder, CEO
Seoul, KR
Website
Employees
2
AeroLeads page
6 roles

Junseong Kim work experience

A career timeline built from the work history available for this profile.

Ceo Staff / Strategy Manager

Current

Seoul, South Korea

Do everything for the exponential growth of startups and products.CEO Staff, Growth Strategy, Marketing, Business Modeling, IR, PR, HR, etc.Starting member of the strategy team, directly under the CEO.- KPI Setup: Set a clear company goal for 2024. Spread specific goals of each team in metric.- BD: Researched and proposed the initial advertisement, and subscription BM strategy for ZETA.- Market Research: Researched core value(fun) of AI-based entertainment services. like CAI.- PR: Contacted press instead of the CEO for initial company introduction for public relationship.- IR: Built IR resources( IR Deck, Financial Modeling ) and partially participated in IR pitching with the CEO.- HR: Directly recruiting DA(Data Analyst), PD(Product Designer) through 20+ tea time with candidates.- Networking: Source and communicate with other companies who can fill out the weaknesses of ScatterLab.

Nov 2023 - Present

Machine Learning Engineer

Seongdong District, Seoul, South Korea

- Project Lead. LLM quantization research for production cost reduction. (W4A16, W8A8)- Built in-house LLM ourselves. Did everything needed for LLM pre-training. Data collecting, pre-processing, pretraining, and deployment. Worked with MosaicML (now Databricks)- Project Lead. Redeveloped all ML inference services from scratch for the bigger model update. Optimized with AWS spot instance, AWS inferentia with TFServing, FasterTransformers with GPU, FastAPI, Kubernetes, and other techniques for best performance per cost.- Project Lead. Optimized GPT inference server for real-time text generation. 3x faster than baseline.- Project Lead. Optimized RoBERTa inference speed using IPU. achieved 5x lower cost and 2x faster!- Optimized large-scale TPU Pod Tensorflow training; achieved 3x faster training speed.- Developed internal data labeling tool backend and data sampling in large raw conversations data.- Managed research team GCP environment for convenient and cost-effective cloud working space.Side Projects- Built dialog response search tool backend using FastAPI & Elastic Search.- Built helpful slack bots for internal purpose (ex. Cloud VM monitoring and access slack bot)- Built internal dockerfile repository and auto-build CD using GitHub Action.

Oct 2021 - Feb 2024

Machine Learning Research Scientist

Seongdong District, Seoul, South Korea

- Project Lead. Researched dialog response retrieval in 10M+ response candidates using ANN.- Project Lead. Researched automated person name de-identification for data privacy protection.- Project Lead. Researched a similar query-matching model to reply with persona-oriented responses.- Researched intent classification task to classify given context is purposed of goal-oriented or chitchat.- Researched noun and keyword recognition model to catch the dialog topic.- Researched the next dialog topic prediction model in the multi-turn context.- Developed language model fine-tuning and evaluating pipeline with 5 NLU tasks using Kubeflow- Developed the Pingpong-Builder backend logic at the prototype stage.Side Projects- Lead KLUE(Korean Language Understanding Evaluation) MRC task, accepted in NeurIPS 2021- Had a presentation in PyCon 2019 "Building open-domain conversation model with 1B+ dataset"- Had a presentation in Naver Tech Talk 2019 "Building open-domain conversation chatbot" with CEO.- Awarded 1st place at 2019 AI Starthon in the group of 5+ year startups. (main: NLP Movie Review)- Participated in Kubernetes study for 3 months to learn the scalable and continuous deployment.- Participated in GO language study for 3 months to learn the powerful backend language.

Oct 2018 - Sep 2021

Clova Ai Research Intern

대한민국 경기도 성남

- Prototyped goal-oriented dialog system for a restaurant reservation- Implemented popular arixv papers using Pytorch (internship assignment)

Jul 2018 - Sep 2018

Machine Learning Engineer

Jung-Gu, Seoul, Korea

- Domain-specific neural machine translation task for shopping website- Name entity recognition/intent classification for airline booking chatbot- Intent classification task for card company chatbot- Audio/Transcription Data collection & management

Jun 2017 - Jun 2018
2 education records

Junseong Kim education

FAQ

Frequently asked questions about Junseong Kim

Quick answers generated from the profile data available on this page.

What company does Junseong Kim work for?

Junseong Kim works for BitterSweet.

What is Junseong Kim's role at BitterSweet?

Junseong Kim is listed as Co-Founder, CEO at BitterSweet.

What is Junseong Kim's email address?

AeroLeads has found 1 work email signal at @bittersweet.ai for Junseong Kim at BitterSweet.

Where is Junseong Kim based?

Junseong Kim is based in Seoul, Korea, Republic of while working with BitterSweet.

What companies has Junseong Kim worked for?

Junseong Kim has worked for Bittersweet, 스캐터랩 (Scatter Lab), 스캐터랩 (Scatterlab), Naver Corp, and Atlas Labs.

How can I contact Junseong Kim?

You can use AeroLeads to view verified contact signals for Junseong Kim at BitterSweet, including work email, phone, and LinkedIn data when available.

What schools did Junseong Kim attend?

Junseong Kim holds Bachelor'S Degree, Computer Science from Kookmin University.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.

People with similar names

Check these profiles if this is not the Junseong Kim you were looking for.

View similar profiles