Technical Support Engineer - Korea

Sorry, this job was removed at 05:17 p.m. (CST) on Monday, Jan 26, 2026
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Seoul
In-Office
Information Technology • Internet of Things
The Role
Before jumping into all the information about the role and what you can bring to the table, let us introduce ourselves real quick.

About us

Insider One is the #1 platform that brings everything marketing and customer engagement teams need in one place so they can reach their peak potential and become unstoppable. 

Our story began with six desks and a vision to create a single platform to make industry-first technologies and emerging channels accessible to marketers worldwide. Today, Insider One is powered by 1,500+ team members representing 50+ nationalities across 30+ offices.  With AI at its core and an integrated Customer Data Platform (CDP), Insider One unites data, personalization, and journey orchestration across the most extensive set of natively supported channels, including WhatsApp, SMS, Email, Web, App, and Site Search. 

We recently raised one of the largest funding rounds in the industry, a $500M Series E led by General Atlantic. We are backed by top-notch investors, including Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst, and trusted by 2000+ customers from high-growth startups to the most prestigious Fortune 500 companies such as Samsung, Nike, L’Oreal, Singapore Airlines, Nestlé, Nissan, Lenovo, Puma, IKEA, Allianz, Domino's, and the list goes on.

Insider One was congratulated for becoming one of the only woman-founded, women-led B2B SaaS unicorns in the world. Loved by customers, recognized by analysts, we are the only vendor recognized as the #1 leader in all the capabilities marketing and customer engagement teams need. Don’t just take our word for it — see for yourself. We consistently outperform and continue our leadership, and the results speak for themselves.

From day one, Insider One’s mission has not only been to build a world-class product company, but also to create one of the most socially progressive technology communities in the world. Through our social responsibility initiatives like 100 Social Responsibility Projects, AI Training for Teachers, Code Academy, SheCodes, SheLeads, and SheMarkables, our community has committed to scaling its impact on our communities across 30+ countries, driving initiatives in health, education, farming, animal rights, and increasing women’s representation in STEM.

Behind all these achievements is an exceptionally talented, visionary team of overachievers that moves fast and agile, creating cutting-edge products, and focuses on making an impact. If you want to be a part of this journey, just keep reading.

What You Will Do

  • As a Technical Support Engineer, you will play a crucial role in the Partner Success Team that owns support processes with our partners using our products and services.
  • To be successful in this role, you should be an excellent communicator who also has solid problem-solving skills.
  • Your primary responsibility will be to support seamless experiences for our partners.
  • Your day-to-day responsibilities will include troubleshooting technical issues, finding resolutions for partner requests, reviewing partner queries and finding creative solutions that streamline their requirements, and leveraging your knowledge to help partners get over technical struggles while expanding to the Insider One platform.
  • You will also contribute to building innovative products by advocating for partners, taking their feedback, and sharing it with the Product team to improve processes and product offerings.
  • You will be meeting important SLAs like response time and lead time for issue resolutions.

What You Will Need

  • A university degree in Business, Marketing, Engineering, or related fields
  • 1–2 years of experience supporting a technical product, ideally in SaaS, or experience in MIS or Software Development teams
  • Strong communication skills in writing (English)
  • High sense of responsibility and accountability
  • Ability to provide timely responses and follow up systematically
  • A natural problem solver with a positive attitude and a love for helping others succeed
  • Good debugging/troubleshooting skills
  • Knowledge of HTML, CSS, or other programming languages is a plus
  • Fluent in Korean

What We Offer

  • Be part of a diverse team that’s as global as it gets — where every voice is heard and 50+ nationalities build together.
  • Level up with internal trainings covering AI fundamentals, coding, foreign languages, and a wide range of personal development skills.
  • Feed your curiosity with access to Spotify, LinkedIn Learning, Blinkist, MasterClass, and CloudGuru.
  • Become a Shareowner through our eligibility-based “ESOP” and own a piece of what you build.
  • Help build the team you want to work with and enjoy rewarding referral bonuses.
  • Opportunities to give back to your community through volunteering and purpose-driven social impact projects.
  • From global retreats to team-building activities, expect year-round events that turn into lifelong memories.

We aren't just hiring for a position; we are hiring for a mission — a mission to build a lasting legacy that will set the benchmark for the most progressive tech companies out there. 

To do this, we are looking for exceptional talent to join a community of good-hearted individuals who take high ownership and are relentlessly driven to go the extra mile.

If this sounds like who you are and where you aspire to be, we are excited to meet you.


We provide equal opportunity in a zero-discrimination workplace and not just welcome but also embrace everyone without regard to sex, race, color, nationality, religion, gender identity, sexual orientation, disability status, citizenship, or marital status.

Please follow Insider One on LinkedIn, Instagram, Youtube, and Medium!

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The Company
HQ: Kağıthane, Istanbul
1,162 Employees
Year Founded: 2012

What We Do

Insider—one platform for individualized, cross-channel experiences—enables enterprise marketers to connect customer data across channels and systems, predict their future behavior with an AI intent engine and individualize customer experiences. Marketers use Insider’s platform to deliver experiences across channels like Web, App, Web Push, Email, SMS, and Messaging Apps (WhatsApp, Facebook Messenger, RCS).

Insider recently unlocked unicorn status and NASDAQ congratulated the company for becoming one of the few woman-founded, women-led B2B SaaS unicorns in the world. Insider was named as the #1 Leader in The Forrester Wave for Cross-Channel Campaign Management 2021 and Gartner Magic Quadrant for Personalization Engines 2021. The company has been named #1 Leader on G2’s Mobile Marketing Software and Personalization Grids with a 4.6/5 rating for 20 consecutive quarters. CrunchBase recently ranked Insider’s co-founder and CEO Hande Cilingir as one of the top women CEOs outside the US.

Many of the most prestigious Fortune 500 companies and top brands in retail, automotive, and travel use Insider to deliver AI-backed personalized experiences that exceed customer expectations. Insider is trusted by over 1,200 global businesses, including Singapore Airlines, Virgin, Toyota, New Balance, IKEA, GAP, L’Oreal, Samsung, Newsweek, MediaMarkt, Nissan, AVIS, Marks & Spencer, Allianz, Madeira Madeira, Santander, BBVA, Pizza Hut, Avon, and CNN.

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