Technical Solution Engineer

Appier is hiring a Technical Solution Engineer in Seoul, South Korea. Level rates it ; you can apply on Appier.

Level's read on this job

Little AI ●○○○ is how Level rates this role: aI is not part of the work.
Tools and skills the posting cites include ChatGPT, Claude and Gemini.
Level classifies it as a mid-level role.
Level lists 66 other open roles at Appier.
The role was posted within the past two weeks.

AI in this role

chatgptclaudegemini

About Appier Appier (TSE: 4180) is an AI-native Agentic AI as a Service (AaaS) company that empowers businesses to create value through cutting-edge AdTech and MarTech solutions. Founded in 2012 with the vision of “Making AI Easy by Making Software Intelligent,” Appier helps businesses turn AI into ROI through its Ad Cloud, Personalization Cloud, and Data Cloud—each powered by Agentic AI that enables autonomous, adaptive, and real-time decision-making. Today, Appier operates 17 offices across APAC, the US, and EMEA, and is listed on the Tokyo Stock Exchange. Learn more at www.appier.com.

About the role

Deep dives into our customers' business cases, data, and constraints and ensures the optimal usage of Appier’s AI-empowered ad solutions.
In-depth knowledge of Appier’s ad solutions: you are familiar with all of the details from development, service operation to the sales strategy.
Work with Product and HQ’s Technical Solutions teams to support successful adoption of Appier's solutions, including providing appropriate documentation, technical guidance.
Develop solutions for customers by working out existing product upon data integration, service application recommendations
Discuss the product definition, implementation, operation and clarify issues with customer and consolidate the feedbacks to product team on behalf of the customer
Optimize business outcomes for customers by leveraging Appier’s AI and data assets

Responsibilities

Guide clients through the onboarding process, ensuring timely and successful adoption of our solutions.
Working as a liaison with clients and stakeholders to determine project requirements, scope, schedule, and deliverables.
Preparing technical specifications for developers to implement.
Creating user and training documentation for smooth operation.
Troubleshooting technical issues and solving the issues by close communication with developers.
Developing internal tools and scripts to streamline operations and visualize/analyze data.
Escalating feature enhancements and help coordination between clients and Project Managers.
Analyzing data and giving insights to customers and colleagues.
Understanding the client's current status and proactively following up with them based on the project timeline.

About You

Solid research and summarization skills.
Explanation skill in an easily understandable manner with logicalness.
Good knowledge of SQL, Javascript and iOS or Android application development.
Strong oral and written communication skills in both English (=Professional level) and Korean (=Native level).
Ability to perform maintenance and debugging tasks for Web and App SDK-related solutions.
Willingness to learn and adapt to new technologies. Self-motivated and independent learner.
Experience with using Claude / ChatGPT / Gemini, etc.

Nice To haves

Experience in the digital marketing or advertising industry.
Relevant BSC degree with 3+ years of experience in a relevant position.
BS/BA degree in Computer Science or related field.
Experience in mobile measurement partner(AppsFlyer, Adjust…) industry.
Experience with data mining projects, has strong sense of using data to help executives make business decisions
Potential ability to conduct data analysis and high level of consultation

#LI-JP1

How we rate this

Technical Solution Engineer at Appier rates 17 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Key facts

Technical Solution Engineer is an open job at Appier.
Level rates this role AI Level 1 of 4: Little AI.
The role is based in Seoul, South Korea.
The job was posted on October 21, 2026.
Seniority: mid.
Applications are handled by Appier. Apply on Appier

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

ChatGPTClaudeGemini

Questions you could be asked

What's a project where you used ChatGPT hands-on?
Walk me through how you've used Claude in your day-to-day work.
What are the limits of Gemini that you've run into, and how did you work around them?

Adapt your resume

List these exact terms on your resume: ChatGPT, Claude, and Gemini. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.

Want an expert to read your CV for this job?

Free. Send your CV and the role you want next. You get your review by email within 24 hours.

Get a free CV review Get your CV rewritten Check your resume with the ATS resume checker